2017

  • V. Kostakos, J. Rogstadius, D. Ferreira, S. Hosio, and J. Goncalves, “Human sensors,” in Participatory sensing, opinions and collective awareness, V. Loreto, M. Haklay, A. Hotho, V. C. Servedio, G. Stumme, J. Theunis, and F. Tria, Eds., Springer International Publishing, 2017, pp. 69-92. doi:10.1007/978-3-319-25658-0_4
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inbook{Kostakos:ParticipatorySensingOpinionsAndCollectiveAwareness:2017,
    author = {Kostakos, Vassilis and Rogstadius, Jakob and Ferreira, Denzil and Hosio, Simo and Goncalves, Jorge},
    editor = {Loreto, Vittorio and Haklay, Muki and Hotho, Andreas and Servedio, Vito CP and Stumme, Gerd and Theunis, Jan and Tria, Francesca},
    title = {Human Sensors},
    booktitle = {Participatory Sensing, Opinions and Collective Awareness},
    uuid = {1FEBA5C1-9C9E-41EB-99B6-0EC3CDE58185},
    pages = {69-92},
    publisher = {Springer International Publishing},
    organization = {University of Oulu},
    year = {2017},
    doi = {10.1007/978-3-319-25658-0_4},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Kostakos%2C%20V/2017/Human%20Sensors.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/sensing_book16c.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    Medium_consulted = {Web},
    publicationStatus = {Published},
    Citation_identifier = {Kostakos 2017},
    Web_data_source = {SpringerLink}
    }</code>

  • D. Ferreira, V. Kostakos, and I. Schweizer, “Human sensors on the move,” in Participatory sensing, opinions and collective awareness, V. Loreto, M. Haklay, A. Hotho, V. C. Servedio, G. Stumme, J. Theunis, and F. Tria, Eds., Springer International Publishing, 2017, pp. 9-19. doi:10.1007/978-3-319-25658-0_1
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inbook{Ferreira:ParticipatorySensingOpinionsAndCollectiveAwareness:2017,
    author = {Ferreira, Denzil and Kostakos, Vassilis and Schweizer, Immanuel},
    editor = {Loreto, Vittorio and Haklay, Muki and Hotho, Andreas and Servedio, Vito CP and Stumme, Gerd and Theunis, Jan and Tria, Francesca},
    title = {Human Sensors on the Move},
    booktitle = {Participatory Sensing, Opinions and Collective Awareness},
    uuid = {56DCCFD2-8C43-4EB1-9801-F6EA6D7BF202},
    pages = {9-19},
    publisher = {Springer International Publishing},
    organization = {Technical University},
    year = {2017},
    doi = {10.1007/978-3-319-25658-0_1},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2017/Human%20Sensors%20on%20the%20Move.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/sensing_book16a.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    Medium_consulted = {Web},
    publicationStatus = {Published},
    Citation_identifier = {Ferreira 2017},
    Web_data_source = {CoINs}
    }</code>

2016

  • Y. Liu, D. Ferreira, J. Goncalves, S. Hosio, P. Pandab, and V. Kostakos, “Donating context data to science: the effects of social signals and perceptions on action-taking,” Interacting with computers, 2016. doi:10.1093/iwc/iww013
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@article{Liu:InteractingWithComputers:2016,
    author = {Liu, Yong and Ferreira, Denzil and Goncalves, Jorge and Hosio, Simo and Pandab, Pratyush and Kostakos, Vassilis},
    title = {Donating Context Data to Science: The Effects of Social Signals and Perceptions on Action-Taking},
    journal = {Interacting with Computers},
    uuid = {EB43AB56-4A8F-4C5C-9724-EC63A672B918},
    year = {2016},
    doi = {10.1093/iwc/iww013},
    sentelink = {syncii:///Donating%20Context%20Data%20to%20Science%20The%20Effects%20of%20S.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/iwc16b.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    impact_factor = {1.268},
    Citation_identifier = {Liu 2016a},
    publicationStatus = {Published}
    }</code>

  • T. Anagnostopoulos, D. Ferreira, A. Samodelkin, M. Ahmed, and V. Kostakos, “Cyclist-aware traffic lights through distributed smartphone sensing,” Pervasive and mobile computing, 2016. doi:10.1016/j.pmcj.2016.01.012
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@article{Anagnostopoulos:PervasiveAndMobileComputing:2016,
    author = {Anagnostopoulos, Theodoros and Ferreira, Denzil and Samodelkin, Alexander and Ahmed, Muzamil and Kostakos, Vassilis},
    title = {Cyclist-aware traffic lights through distributed smartphone sensing},
    journal = {Pervasive and Mobile Computing},
    uuid = {096100E8-FA84-4BB9-8143-D7CC2EF540FB},
    month = {2},
    year = {2016},
    doi = {10.1016/j.pmcj.2016.01.012},
    ISSN = {1574-1192},
    PII = {S1574119216000249},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Anagnostopoulos%2C%20T/2016/Cyclist-aware%20traffic%20lights%20t.pdf,Sente,},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Anagnostopoulos%2C%20T/2016/Cyclist-aware%20traffic%20lights%20t.webarchive,Sente,Web Page Archived 11 Mar 2016 08:38:23},
    url = {http://ubicomp.oulu.fi/files/pmc16.pdf},
    keywords = {Level 2;Applied Mathematics;Computer Science (miscellaneous)},
    tags = {Level 2},
    Medium_consulted = {Web},
    EndNote_reference_number = {3187},
    Web_data_source = {ScienceDirect},
    impact_factor = {2.079},
    Citation_identifier = {Anagnostopoulos 2016},
    publicationStatus = {Unknown}
    }</code>

  • M. Pouke, J. Goncalves, D. Ferreira, and V. Kostakos, “Practical simulation of virtual crowds using points of interest,” Computers, environment and urban systems, vol. 57, pp. 118-129, 2016. doi:10.1016/j.compenvurbsys.2016.02.004
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@article{Pouke:ComputersEnvironmentAndUrbanSystems:2016,
    author = {Pouke, Matti and Goncalves, Jorge and Ferreira, Denzil and Kostakos, Vassilis},
    title = {Practical simulation of virtual crowds using points of interest},
    journal = {Computers, Environment and Urban Systems},
    uuid = {1CEA52E8-52B6-4714-95D7-B0141B4631F2},
    volume = {57},
    pages = {118-129},
    year = {2016},
    doi = {10.1016/j.compenvurbsys.2016.02.004},
    ISSN = {0198-9715},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Pouke%2C%20M/2016/Practical%20simulation%20of%20virtua.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ceus16.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    impact_factor = {1.537},
    Citation_identifier = {Pouke 2016},
    publicationStatus = {Unknown}
    }</code>

  • S. Hosio, D. Ferreira, J. Goncalves, N. van Berkel, C. Luo, M. Ahmed, H. Flores, and V. Kostakos, “Monetary assessment of battery life on smartphones,” in Conference on human factors in computing systems, 2016, pp. 1869-1880. doi:10.1145/2858036.2858285
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Hosio:ConferenceOnHumanFactorsInComputingSystems:2016,
    author = {Hosio, Simo and Ferreira, Denzil and Goncalves, Jorge and van Berkel, Niels and Luo, Chu and Ahmed, Muzamil and Flores, Huber and Kostakos, Vassilis},
    booktitle = {Conference on Human Factors in Computing Systems},
    title = {Monetary Assessment of Battery Life on Smartphones},
    uuid = {59AB4753-6CBE-4253-A855-C13A1E1D9A75},
    pages = {1869-1880},
    publisher = {ACM},
    year = {2016},
    doi = {10.1145/2858036.2858285},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Hosio%2C%20S/2016/Monetary%20Assessment%20of%20Battery.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/chi16b.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {23\%},
    EndNote_reference_number = {2902},
    Series = {CHI},
    Citation_identifier = {Hosio 2016},
    publicationStatus = {Unknown}
    }</code>

  • N. van Berkel, C. Luo, T. Anagnostopoulos, D. Ferreira, J. Goncalves, S. Hosio, and V. Kostakos, “A systematic assessment of smartphone usage gaps,” in Conference on human factors in computing systems, 2016, pp. 4711-4721. doi:10.1145/2858036.2858348
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{vanBerkel:ConferenceOnHumanFactorsInComputingSystems:2016,
    author = {van Berkel, Niels and Luo, Chu and Anagnostopoulos, Theodoros and Ferreira, Denzil and Goncalves, Jorge and Hosio, Simo and Kostakos, Vassilis},
    booktitle = {Conference on Human Factors in Computing Systems},
    title = {A Systematic Assessment of Smartphone Usage Gaps},
    uuid = {81033162-DC08-4611-BCB5-76810D14980E},
    pages = {4711-4721},
    publisher = {ACM},
    year = {2016},
    doi = {10.1145/2858036.2858348},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/van%20Berkel%2C%20N/2016/A%20Systematic%20Assessment%20of%20Sma.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/chi16a.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {23\%},
    EndNote_reference_number = {2939},
    Series = {CHI},
    Citation_identifier = {VanBerkel 2016},
    publicationStatus = {Unknown}
    }</code>

2015

  • N. van Berkel, C. Luo, D. Ferreira, J. Goncalves, and V. Kostakos, “The curse of quantified-self: an endless quest for answers,” in Adjunct proceedings of international joint conference on pervasive and ubiquitous computing adjunct, 2015, pp. 973-978. doi:10.1145/2800835.2800946
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{VanBerkel:UbicompWorkshopOnNewFrontiersOfQuantified:2015,
    author = {van Berkel, Niels and Luo, Chu and Ferreira, Denzil and Goncalves, Jorge and Kostakos, Vassilis},
    booktitle = {Adjunct Proceedings of International Joint Conference on Pervasive and Ubiquitous Computing Adjunct},
    title = {The Curse of Quantified-Self: An Endless Quest for Answers},
    uuid = {5DC2CA3A-2F16-4419-93E4-AA9F8E0C4451},
    pages = {973-978},
    year = {2015},
    doi = {10.1145/2800835.2800946},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/van%20Berkel%2C%20N/2015/The%20Curse%20of%20Quantified-Self.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp15d.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    EndNote_reference_number = {2919},
    Series = {UbiComp Adjunct},
    Citation_identifier = {VanBerkel 2015},
    publicationStatus = {Unknown}
    }</code>

  • S. L. Jones, D. Ferreira, S. Hosio, J. Goncalves, and V. Kostakos, “Revisitation analysis of smartphone app use,” in International joint conference on pervasive and ubiquitous computing, 2015, pp. 1197-1208. doi:10.1145/2750858.2807542
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{jones2015revisitation,
    author = {Jones, Simon L. and Ferreira, Denzil and Hosio, Simo and Goncalves, Jorge and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Revisitation Analysis of Smartphone App Use},
    uuid = {19C65DBA-4DC9-4597-9711-A635CF4AE550},
    pages = {1197-1208},
    publisher = {ACM},
    year = {2015},
    doi = {10.1145/2750858.2807542},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Jones%2C%20SL/2015/Revisitation%20Analysis%20of%20Smart.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp15.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {24\%},
    Google_Scholar_BibTeX_export_key = {0DoazGzLC9wJ},
    EndNote_reference_number = {2709},
    Web_data_source = {Google Scholar},
    Series = {UbiComp},
    Citation_identifier = {Jones 2015},
    publicationStatus = {Published}
    }</code>

  • J. Goncalves, S. Hosio, D. Ferreira, T. Anagnostopoulos, and V. Kostakos, “Bazaar: a situated crowdsourcing market,” in International joint conference on pervasive and ubiquitous computing adjunct, 2015, pp. 1385-1390. doi:10.1145/2800835.2800974
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Goncalvesb:UbicompAdj:2015,
    author = {Goncalves, Jorge and Hosio, Simo and Ferreira, Denzil and Anagnostopoulos, Theodoros and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing Adjunct},
    title = {Bazaar: A situated crowdsourcing market},
    uuid = {2B2BA82F-FADF-4A79-8847-C9F4495A58BE},
    pages = {1385-1390},
    publisher = {ACM},
    year = {2015},
    doi = {10.1145/2800835.2800974},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Goncalves%2C%20J/2015/Bazaar%20A%20situated%20crowdsourci.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp15c.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    EndNote_reference_number = {2982},
    Series = {UbiComp Adjunct},
    Citation_identifier = {Goncalves 2015b},
    publicationStatus = {Unknown}
    }</code>

  • K. Church, D. Ferreira, N. Banovic, and K. Lyons, “Understanding the challenges of mobile phone usage data,” in International conference on human-computer interaction with mobile devices and services, 2015, pp. 505-514. doi:10.1145/2785830.2785891
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Church:Mobilehci:2015,
    author = {Church, Karen and Ferreira, Denzil and Banovic, Nikola and Lyons, Kent},
    booktitle = {International Conference on Human-Computer Interaction with Mobile Devices and Services},
    title = {Understanding the Challenges of Mobile Phone Usage Data},
    uuid = {310311A1-E3C6-4DA8-8AB9-AE328E523FCA},
    pages = {505-514},
    year = {2015},
    doi = {10.1145/2785830.2785891},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Church%2C%20K/2015/Understanding%20the%20Challenges%20o.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mhci15.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    acceptance_rate = {27\%, Honorable Mention Award},
    EndNote_reference_number = {2493},
    Series = {MobileHCI},
    Citation_identifier = {Church 2015},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, V. Kostakos, A. R. Beresford, J. Lindqvist, and A. K. Dey, “Securacy: an empirical investigation of android applications’ network usage, privacy and security,” in Conference on security and privacy in wireless and mobile networks, 2015, p. 11:1-11:11. doi:10.1145/2766498.2766506
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{ferreira2015securacy,
    author = {Ferreira, Denzil and Kostakos, Vassilis and Beresford, Alastair R. and Lindqvist, Janne and Dey, Anind K.},
    booktitle = {Conference on Security and Privacy in Wireless and Mobile Networks},
    title = {Securacy: An Empirical Investigation of Android Applications' Network Usage, Privacy and Security},
    uuid = {394A201C-8845-4EF2-8165-0209A935B57C},
    pages = {11:1-11:11},
    publisher = {ACM},
    year = {2015},
    doi = {10.1145/2766498.2766506},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2015/Securacy%20An%20Empirical%20Investi.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/wisec15.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    acceptance_rate = {19\%},
    Google_Scholar_BibTeX_export_key = {obpgy5-yzNMJ},
    EndNote_reference_number = {2495},
    Web_data_source = {Google Scholar},
    Series = {WiSec},
    Citation_identifier = {Ferreira 2015a},
    publicationStatus = {Published}
    }</code>

  • V. Kostakos, D. Ferreira, and P. Pandab, “Not what, but how to study in hci: tools, data, theory,” in Chi workshop on what to study in hci, Seoul, Korea, 2015, pp. 1-4. doi:10.13140/RG.2.1.2568.9764
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Kostakos:ChiWorkshopOnWhatToStudyIn:2015,
    author = {Kostakos, Vassilis and Ferreira, Denzil and Pandab, Pratyush},
    booktitle = {CHI workshop on What to Study in HCI},
    title = {Not what, but HOW to study in HCI: tools, data, theory},
    uuid = {FD33F748-8EB0-4127-9137-E9577F56F39D},
    pages = {1-4},
    address = {Seoul, Korea},
    year = {2015},
    doi = {10.13140/RG.2.1.2568.9764},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Kostakos%2C%20V/2015/Not%20what%2C%20but%20HOW%20to%20study%20in.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/chi15b.pdf},
    keywords = {Level 0},
    tags = {Level 0},
    Citation_identifier = {Kostakos 2015b},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, V. Kostakos, and A. K. Dey, “Aware: mobile context instrumentation framework,” Frontiers in ict, vol. 2, iss. 6, pp. 1-9, 2015. doi:10.3389/fict.2015.00006
    [BibTeX] [Abstract] [Download PDF]
    We present a mobile instrumentation toolkit, AWARE, an open-source effort to develop an extensible and reusable platform for capturing, inferring, and generating context on mobile devices. Mobile phones are sensor-rich but resource-constrained, and therefore several considerations need to be addressed when creating a research tool that ensures problem-free context collection. We demonstrate how AWARE can mitigate researchers’ effort when building mobile data-logging tools and context-aware applications, with minimal battery impact. By encapsulating implementation details of sensor data retrieval and exposing the sensed context as higher-level abstractions, AWARE shifts the focus from software development to data analysis, both quantitative and qualitative. We have evaluated AWARE in several case studies and discuss its use, power consumption, and scalability.

    <code class="tex bibtex">@article{Ferreira:FrontiersInIct:2015,
    author = {Ferreira, Denzil and Kostakos, Vassilis and Dey, Anind K.},
    title = {AWARE: mobile context instrumentation framework},
    journal = {Frontiers in ICT},
    uuid = {284E25A6-7AC0-4B22-BE9D-C4C7248E0947},
    volume = {2},
    number = {6},
    pages = {1-9},
    publisher = {Frontiers},
    year = {2015},
    doi = {10.3389/fict.2015.00006},
    ISSN = {2297-198X},
    sentelink = {syncii:///AWARE%20mobile%20context%20instrume.webarchive,Sente,Web Page Archived 16 Apr 2015 09:40:33},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2015/AWARE%20mobile%20context%20instrume.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/fict15.pdf},
    keywords = {mobile questionnaires;user studies;Mobile sensing;ESM;Context-Aware Systems;Ubiquitous data capture framework;Level 0;mobile toolkit},
    tags = {Level 0},
    Medium_consulted = {Web},
    EndNote_reference_number = {2394},
    Web_data_source = {CoINs},
    Citation_identifier = {Ferreira 2015},
    publicationStatus = {Published},
    abstract = {We present a mobile instrumentation toolkit, AWARE, an open-source effort to develop an extensible and reusable platform for capturing, inferring, and generating context on mobile devices. Mobile phones are sensor-rich but resource-constrained, and therefore several considerations need to be addressed when creating a research tool that ensures problem-free context collection. We demonstrate how AWARE can mitigate researchers’ effort when building mobile data-logging tools and context-aware applications, with minimal battery impact. By encapsulating implementation details of sensor data retrieval and exposing the sensed context as higher-level abstractions, AWARE shifts the focus from software development to data analysis, both quantitative and qualitative. We have evaluated AWARE in several case studies and discuss its use, power consumption, and scalability.}
    }</code>

  • V. Kostakos and D. Ferreira, “The rise of ubiquitous instrumentation,” Frontiers in ict, vol. 2, iss. 3, pp. 1-2, 2015. doi:10.3389/fict.2015.00003
    [BibTeX] [Abstract] [Download PDF]
    The Rise Of Ubiquitous Instrumentation

    <code class="tex bibtex">@article{Kostakos:FrontiersInIct:2015,
    author = {Kostakos, Vassilis and Ferreira, Denzil},
    title = {The Rise Of Ubiquitous Instrumentation},
    journal = {Frontiers in ICT},
    uuid = {A6B7F816-C23A-480E-9F88-6A901D89F74C},
    volume = {2},
    number = {3},
    pages = {1-2},
    publisher = {Frontiers},
    organization = {University of Oulu, Department of Computer Science and Engineering, Oulu, 90570, Finland},
    year = {2015},
    doi = {10.3389/fict.2015.00003},
    ISSN = {2297-198X},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Kostakos%2C%20V/2015/The%20Rise%20Of%20Ubiquitous%20Instrum.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/fict15a.pdf},
    keywords = {Community;Sensing;Humans;Ubiquitous Computing;Smartphones;instrumentation;Level 0},
    tags = {Level 0},
    Medium_consulted = {Web},
    EndNote_reference_number = {2371},
    Web_data_source = {CoINs},
    Citation_identifier = {Kostakos 2015a},
    publicationStatus = {Published},
    abstract = {The Rise Of Ubiquitous Instrumentation}
    }</code>

2014

  • S. Hosio, J. Goncalves, V. Lehdonvirta, D. Ferreira, and V. Kostakos, “Situated crowdsourcing using a market model,” in User interface software and technology, 2014, pp. 55-64. doi:10.1145/2642918.2647362
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Hosio:Uist:2014,
    author = {Hosio, Simo and Goncalves, Jorge and Lehdonvirta, Vili and Ferreira, Denzil and Kostakos, Vassilis},
    booktitle = {User Interface Software and Technology},
    title = {Situated Crowdsourcing Using a Market Model},
    uuid = {DC181BB1-8568-4E33-A9CD-1AD93DBF561D},
    pages = {55-64},
    publisher = {ACM},
    year = {2014},
    doi = {10.1145/2642918.2647362},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Hosio%2C%20S/2014/Situated%20Crowdsourcing%20Using%20a.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/uist14.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {22\%},
    EndNote_reference_number = {2072},
    Series = {UIST},
    Citation_identifier = {Hosio 2014c},
    publicationStatus = {Unknown}
    }</code>

  • J. Goncalves, P. Pandab, D. Ferreira, M. Ghahramani, G. Zhao, and V. Kostakos, “Projective testing of diurnal collective emotion,” in International joint conference on pervasive and ubiquitous computing, 2014, pp. 487-497. doi:10.1145/2632048.2636067
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Goncalves:Ubicomp:2014,
    author = {Goncalves, Jorge and Pandab, Pratyush and Ferreira, Denzil and Ghahramani, Mohammad and Zhao, Guoying and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Projective Testing of Diurnal Collective Emotion},
    uuid = {D5A20E58-F95A-4D8B-8425-9005971A203C},
    pages = {487-497},
    publisher = {ACM},
    year = {2014},
    doi = {10.1145/2632048.2636067},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Goncalves%2C%20J/2014/Projective%20Testing%20of%20Diurnal.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp14c.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {21\%},
    EndNote_reference_number = {2332},
    Series = {UbiComp},
    Citation_identifier = {Goncalves 2014c},
    publicationStatus = {Unknown}
    }</code>

  • W. Jiang, D. Ferreira, J. Ylioja, J. Goncalves, and V. Kostakos, “Pulse: low bitrate wireless magnetic communication for smartphones,” in International joint conference on pervasive and ubiquitous computing, 2014, pp. 261-265. doi:10.1145/2632048.2632094
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Jiang:Ubicomp:2014,
    author = {Jiang, Weiwei and Ferreira, Denzil and Ylioja, Jani and Goncalves, Jorge and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Pulse: Low bitrate wireless magnetic communication for smartphones},
    uuid = {76045DE7-9D0E-4745-8345-99DE9D21CFB2},
    pages = {261-265},
    publisher = {ACM},
    year = {2014},
    doi = {10.1145/2632048.2632094},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Jiang%2C%20W/2014/Pulse%20Low%20bitrate%20wireless%20ma.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp14b.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {21\%},
    Series = {UbiComp},
    Citation_identifier = {Jiang 2014},
    publicationStatus = {Unknown}
    }</code>

  • Y. Liu, J. Goncalves, D. Ferreira, S. Hosio, and V. Kostakos, “Identity crisis of ubicomp? mapping 15 years of the field’s development and paradigm change,” in International joint conference on pervasive and ubiquitous computing, 2014, pp. 75-86. doi:10.1145/2632048.2632086
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Liu:Ubicomp:2014,
    author = {Liu, Yong and Goncalves, Jorge and Ferreira, Denzil and Hosio, Simo and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Identity Crisis of Ubicomp? Mapping 15 Years of the Field's Development and Paradigm Change},
    uuid = {2521A823-9500-4DBB-A20F-86908A0A8CAE},
    pages = {75-86},
    publisher = {ACM},
    year = {2014},
    doi = {10.1145/2632048.2632086},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Liu%2C%20Y/2014/Identity%20Crisis%20of%20Ubicomp%3F%20Ma.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp14a.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {21\%},
    EndNote_reference_number = {2290},
    Series = {UbiComp},
    Citation_identifier = {Liu 2014a},
    publicationStatus = {Unknown}
    }</code>

  • K. Van den Broucke, D. Ferreira, J. Goncalves, V. Kostakos, and K. De Moor, “Mobile cloud storage: a contextual experience,” in International conference on human-computer interaction with mobile devices and services, New York, NY, USA, 2014, pp. 101-110. doi:10.1145/2628363.2628386
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{VandenBroucke:Mobilehci:2014,
    author = {Van den Broucke, Karel and Ferreira, Denzil and Goncalves, Jorge and Kostakos, Vassilis and De Moor, Katrien},
    booktitle = {International Conference on Human-Computer Interaction with Mobile Devices and Services},
    title = {Mobile Cloud Storage: A Contextual Experience},
    uuid = {1EC1FAA6-1D67-40EA-8A3C-E749A3577F19},
    pages = {101-110},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2014},
    doi = {10.1145/2628363.2628386},
    ISBN = {978-1-4503-3004-6},
    sentelink = {syncii:///Mobile%20Cloud%20Storage%20A%20Contextual%20Experience.pdf,Sente,},
    sentelink = {syncii:///Mobile%20Cloud%20Storage%20A%20Contex.pdf,Sente,},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Van%20den%20Broucke%2C%20K/2014/Mobile%20Cloud%20Storage%20A%20Contex.pdf,Sente,},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Van%20den%20Broucke%2C%20K/2014/Mobile%20Cloud%20Storage%20A%20Contex.webarchive,Sente,Web Page Archived 16 Mar 2015 10:38:14},
    url = {http://ubicomp.oulu.fi/files/mobilehci14b.pdf},
    keywords = {Level 1;cloud storage services, context-aware, mobile, quality of experience (qoe)},
    tags = {Level 1},
    Medium_consulted = {Web},
    ACMID = {2628386},
    acceptance_rate = {21\%},
    numpages = {10},
    EndNote_reference_number = {2076},
    Web_data_source = {ACM},
    Series = {MobileHCI},
    Citation_identifier = {VanDenBroucke 2014},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, J. Goncalves, V. Kostakos, L. Barkhuus, and A. K. Dey, “Contextual experience sampling of mobile application micro-usage,” in International conference on human-computer interaction with mobile devices and services, New York, NY, USA, 2014, pp. 91-100. doi:10.1145/2628363.2628367
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Ferreira:Mobilehci:2014,
    author = {Ferreira, Denzil and Goncalves, Jorge and Kostakos, Vassilis and Barkhuus, Louise and Dey, Anind K.},
    booktitle = {International Conference on Human-Computer Interaction with Mobile Devices and Services},
    title = {Contextual Experience Sampling of Mobile Application Micro-Usage},
    uuid = {A141663F-8E19-47CF-95D2-94400C8710A3},
    pages = {91-100},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2014},
    doi = {10.1145/2628363.2628367},
    ISBN = {978-1-4503-3004-6},
    sentelink = {syncii:///Contextual%20Experience%20Sampling%20of%20%20Mobile%20Applicat.pdf,Sente,},
    sentelink = {syncii:///Contextual%20Experience%20Sampling.pdf,Sente,},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2014/Contextual%20Experience%20Sampling.pdf,Sente,},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2014/Contextual%20Experience%20Sampling.webarchive,Sente,Web Page Archived 16 Mar 2015 10:39:36},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2014/Contextual%20Experience%20Sampling%20%232.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mobilehci14.pdf},
    keywords = {Level 1;context-awareness, design implications, mobile automated logging},
    tags = {Level 1},
    Medium_consulted = {Web},
    ACMID = {2628367},
    acceptance_rate = {21\%},
    numpages = {10},
    EndNote_reference_number = {2075},
    Web_data_source = {ACM},
    Series = {MobileHCI},
    Citation_identifier = {Ferreira 2014},
    publicationStatus = {Unknown}
    }</code>

  • J. Goncalves, S. Hosio, D. Ferreira, and V. Kostakos, “Game of words: tagging places through crowdsourcing on public displays,” in Designing interactive systems, Vancouver, BC, Canada, 2014, pp. 705-714. doi:10.1145/2598510.2598514
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Goncalves:Dis14:2014,
    author = {Goncalves, Jorge and Hosio, Simo and Ferreira, Denzil and Kostakos, Vassilis},
    booktitle = {Designing Interactive Systems},
    title = {Game of Words: Tagging Places through Crowdsourcing on Public Displays},
    uuid = {FC4D2C8D-A9C1-4C94-B90A-410FE1BF3342},
    pages = {705-714},
    address = {Vancouver, BC, Canada},
    year = {2014},
    doi = {10.1145/2598510.2598514},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Goncalves%2C%20J/2014/Game%20of%20Words%20Tagging%20Places.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/dis14b.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    acceptance_rate = {26\%},
    EndNote_reference_number = {2070},
    Series = {DIS},
    Citation_identifier = {Goncalves 2014a},
    publicationStatus = {In press}
    }</code>

  • Y. Liu, J. Goncalves, D. Ferreira, B. Xiao, S. Hosio, and V. Kostakos, “Chi 1994-2013: mapping two decades of intellectual progress through co-word analysis,” in Conference on human factors in computing systems, Toronto, Canada, 2014, pp. 3553-3562. doi:10.1145/2556288.2556969
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Liu:Chi:2014,
    author = {Liu, Yong and Goncalves, Jorge and Ferreira, Denzil and Xiao, Bei and Hosio, Simo and Kostakos, Vassilis},
    booktitle = {Conference on Human Factors in Computing Systems},
    title = {CHI 1994-2013: Mapping two decades of intellectual progress through co-word analysis},
    uuid = {CFDBE03D-3C65-46EC-B546-CA3ACABB1D7B},
    pages = {3553-3562},
    publisher = {ACM},
    address = {Toronto, Canada},
    year = {2014},
    doi = {10.1145/2556288.2556969},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Liu%2C%20Y/2014/CHI%201994-2013%20Mapping%20two%20dec.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/hfcs14.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {23\%, SIGCHI Best of CHI Honorable Mention Award \&amp; Best Talk Award},
    EndNote_reference_number = {1753},
    Series = {CHI},
    Citation_identifier = {Liu 2014},
    publicationStatus = {Unknown}
    }</code>

2013

  • A. Komninos, J. Besharat, D. Ferreira, and J. Garofalakis, “Hotcity: enhancing ubiquitous maps with social context heatmaps,” in International conference on mobile and ubiquitous multimedia, New York, NY, USA, 2013, p. 52:1-52:10. doi:10.1145/2541831.2543694
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Komninos:2013:HEU:2541831.2543694,
    author = {Komninos, Andreas and Besharat, Jeries and Ferreira, Denzil and Garofalakis, John},
    booktitle = {International Conference on Mobile and Ubiquitous Multimedia},
    title = {HotCity: Enhancing Ubiquitous Maps with Social Context Heatmaps},
    uuid = {0D90387D-8A33-4431-A2E6-1E50FFF630CC},
    pages = {52:1-52:10},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2013},
    doi = {10.1145/2541831.2543694},
    ISBN = {978-1-4503-2648-3},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Komninos%2C%20A/2013/HotCity%20Enhancing%20Ubiquitous.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mum13a.pdf},
    keywords = {Level 1;heatmap visualization, social context, ubiquitous maps},
    tags = {Level 1},
    Medium_consulted = {Web},
    ACMID = {2541831.2543694},
    acceptance_rate = {34\%},
    numpages = {10},
    EndNote_reference_number = {2987},
    Web_data_source = {ACM},
    Series = {MUM},
    articleno = {52},
    Citation_identifier = {Komninos 2013},
    publicationStatus = {Published}
    }</code>

  • D. Ferreira, C. Koehler, E. Karapanos, and V. Kostakos, “Ubiquitous mobile instrumentation,” in International joint conference on pervasive and ubiquitous computing adjunct, New York, NY, USA, 2013, pp. 1409-1412. doi:10.1145/2494091.2496043
    [BibTeX] [Abstract] [Download PDF]
    Mobile phones allow us to reach people anywhere, at anytime. In addition to the benefits for end users, researchers and developers can also benefit from the powerful devices that participants carry on a daily basis. Collectively, mobile phones form a ubiquitous computer. Ubiquitous Mobile Instrumentation (UbiMI) workshop focuses on using mobile devices as instruments to collect data and conduct mobile user studies, to understand human behavior, routines and gathering users’ context.

    <code class="tex bibtex">@inproceedings{Ferreira:2013:UMI:2494091.2496043,
    author = {Ferreira, Denzil and Koehler, Christian and Karapanos, Evangelos and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing Adjunct},
    title = {Ubiquitous mobile instrumentation},
    uuid = {6F0AEB75-C8E2-479B-BCF9-93A48C19509E},
    pages = {1409-1412},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2013},
    doi = {10.1145/2494091.2496043},
    ISBN = {978-1-4503-2215-7},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2013/Ubiquitous%20mobile%20instrumentat.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp13wsc.pdf},
    keywords = {computing, context-aware, experiments, frameworks, instrumentation, middleware, mobile, ubiquitous, user studies;Level 2},
    tags = {Level 2},
    Medium_consulted = {Web},
    ACMID = {2494091.2496043},
    numpages = {4},
    EndNote_reference_number = {1586},
    Web_data_source = {ACM},
    Series = {UbiComp Adjunct},
    Citation_identifier = {Ferreira 2013a},
    publicationStatus = {Unknown},
    abstract = {Mobile phones allow us to reach people anywhere, at anytime. In addition to the benefits for end users, researchers and developers can also benefit from the powerful devices that participants carry on a daily basis. Collectively, mobile phones form a ubiquitous computer. Ubiquitous Mobile Instrumentation (UbiMI) workshop focuses on using mobile devices as instruments to collect data and conduct mobile user studies, to understand human behavior, routines and gathering users' context.}
    }</code>

  • J. Goncalves, D. Ferreira, S. Hosio, Y. Liu, J. Rogstadius, H. Kukka, and V. Kostakos, “Crowdsourcing on the spot: altruistic use of public displays, feasibility, performance, and behaviours,” in International joint conference on pervasive and ubiquitous computing, New York, NY, USA, 2013, pp. 753-762. doi:10.1145/2493432.2493481
    [BibTeX] [Abstract] [Download PDF]
    This study is the first attempt to investigate altruistic use of interactive public displays in natural usage settings as a crowdsourcing mechanism. We test a non-paid crowdsourcing service on public displays with eight different motivation settings and analyse users’ behavioural patterns and crowdsourcing performance (e.g., accuracy, time spent, tasks completed). The results show that altruistic use, such as for crowdsourcing, is feasible on public displays, and through the controlled use of motivational design and validation check mechanisms, performance can be improved. The results shed insights on three research challenges in the field: i) how does crowdsourcing performance on public displays compare to that of online crowdsourcing, ii) how to improve the quality of feedback collected from public displays which tends to be noisy, and iii) identify users’ behavioural patterns towards crowdsourcing on public displays in natural usage settings.

    <code class="tex bibtex">@inproceedings{Goncalves:2013:CSA:2493432.2493481,
    author = {Goncalves, Jorge and Ferreira, Denzil and Hosio, Simo and Liu, Yong and Rogstadius, Jakob and Kukka, Hannu and Kostakos, Vassilis},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Crowdsourcing on the spot: altruistic use of public displays, feasibility, performance, and behaviours},
    uuid = {985DFEFB-0A2D-43EE-925F-F85923D2B9EF},
    pages = {753-762},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2013},
    doi = {10.1145/2493432.2493481},
    ISBN = {978-1-4503-1770-2},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Goncalves%2C%20J/2013/Crowdsourcing%20on%20the%20spot%20alt.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp13a.pdf},
    keywords = {Level 2;altruism, crowdsourcing, motivation, public displays},
    tags = {Level 2},
    Medium_consulted = {Web},
    ACMID = {2493432.2493481},
    acceptance_rate = {23\%},
    numpages = {10},
    EndNote_reference_number = {1673},
    Web_data_source = {ACM},
    Series = {UbiComp},
    Citation_identifier = {Goncalves 2013a},
    publicationStatus = {Unknown},
    abstract = {This study is the first attempt to investigate altruistic use of interactive public displays in natural usage settings as a crowdsourcing mechanism. We test a non-paid crowdsourcing service on public displays with eight different motivation settings and analyse users' behavioural patterns and crowdsourcing performance (e.g., accuracy, time spent, tasks completed). The results show that altruistic use, such as for crowdsourcing, is feasible on public displays, and through the controlled use of motivational design and validation check mechanisms, performance can be improved. The results shed insights on three research challenges in the field: i) how does crowdsourcing performance on public displays compare to that of online crowdsourcing, ii) how to improve the quality of feedback collected from public displays which tends to be noisy, and iii) identify users' behavioural patterns towards crowdsourcing on public displays in natural usage settings.}
    }</code>

  • D. Ferreira, “Aware: a mobile context instrumentation middleware to collaboratively understand human behavior,” PhD Thesis, 2013.
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@phdthesis{Ferreira::2013,
    author = {Ferreira, Denzil},
    title = {Aware: A mobile context instrumentation middleware to collaboratively understand human behavior},
    uuid = {416C74D4-D980-4444-8BD0-C504205A191D},
    school = {},
    organization = {Department of Computer Science \&amp; Engineering, University of Oulu, Acta Univ. Oul. C 458},
    year = {2013},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2013/Aware%20A%20mobile%20context%20instru.pdf,Sente,},
    url = {http://herkules.oulu.fi/isbn9789526201900/isbn9789526201900.pdf},
    keywords = {UBICOMP-Thesis;Level 0},
    tags = {Level 0;UBICOMP-Thesis},
    EndNote_reference_number = {1665},
    Description = {PhD Thesis},
    Citation_identifier = {Ferreira 2013b},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, E. Ferreira, J. Goncalves, V. Kostakos, and A. K. Dey, “Revisiting human-battery interaction with an interactive battery interface,” in International joint conference on pervasive and ubiquitous computing, 2013, pp. 563-572. doi:10.1145/2493432.2493465
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{ferreira2013revisiting,
    author = {Ferreira, Denzil and Ferreira, Eija and Goncalves, Jorge and Kostakos, Vassilis and Dey, Anind K.},
    booktitle = {International Joint Conference on Pervasive and Ubiquitous Computing},
    title = {Revisiting Human-Battery Interaction with an Interactive Battery Interface},
    uuid = {D7D564D1-4C27-48A8-8F46-9E882F1F3A4F},
    pages = {563-572},
    publisher = {ACM},
    year = {2013},
    doi = {10.1145/2493432.2493465},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2013/Revisiting%20Human-Battery%20Inter.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp13b.pdf},
    keywords = {Level 2},
    tags = {Level 2},
    acceptance_rate = {23\%},
    Google_Scholar_BibTeX_export_key = {fiLcOb7KOZ0J},
    EndNote_reference_number = {1573},
    Web_data_source = {Google Scholar},
    Series = {UbiComp},
    Citation_identifier = {Ferreira 2013},
    publicationStatus = {Unknown}
    }</code>

2012

  • J. Kaasila, D. Ferreira, V. Kostakos, and T. Ojala, “Testdroid: automated remote ui testing on android,” in International conference on mobile and ubiquitous multimedia, New York, NY, USA, 2012, p. 28:1-28:4. doi:10.1145/2406367.2406402
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{Kaasila:2012:TAR:2406367.2406402,
    author = {Kaasila, J. and Ferreira, Denzil and Kostakos, Vassilis and Ojala, Timo},
    booktitle = {International Conference on Mobile and Ubiquitous Multimedia},
    title = {Testdroid: automated remote UI testing on Android},
    uuid = {F2AA2BB8-0C30-48D2-B452-764A62AA1723},
    pages = {28:1-28:4},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2012},
    doi = {10.1145/2406367.2406402},
    ISBN = {978-1-4503-1815-0},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Kaasila%2C%20J/2012/Testdroid%20automated%20remote%20UI.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mum12a.pdf},
    keywords = {Level 1;applications, fragmentation, mobiles, performance, remote testing, usability, user interface;applications, fragmentation, mobiles, performance,},
    tags = {Level 1},
    Medium_consulted = {Web},
    ACMID = {2406367.2406402},
    acceptance_rate = {35\%},
    numpages = {4},
    EndNote_reference_number = {1531},
    Web_data_source = {ACM},
    Series = {MUM},
    articleno = {28},
    Citation_identifier = {Kaasila 2012},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, E. Miluzzo, J. Hakkila, T. Lovett, and V. Kostakos, “Ubimi: ubiquitous mobile instrumentation,” in International conference on ubiquitous computing adjunct, New York, NY, USA, 2012, pp. 715-716. doi:10.1145/2370216.2370372
    [BibTeX] [Abstract] [Download PDF]
    Thanks to the rapid development of mobile technologies, smartphones allow people to be reachable anywhere and anytime. In addition to the benefits for end users, researchers and developers can also benefit from the powerful devices that participants potentially carry on a daily basis. This minitrack workshop brings together researchers with an interest on using mobile devices as instruments to collect data and conduct mobile user studies, with a focus on understanding human-behavior, routines and gathering context.

    <code class="tex bibtex">@inproceedings{Ferreira:2012:UUM:2370216.2370372,
    author = {Ferreira, Denzil and Miluzzo, E. and Hakkila, J. and Lovett, T. and Kostakos, Vassilis},
    booktitle = {International Conference on Ubiquitous Computing Adjunct},
    title = {UbiMI: ubiquitous mobile instrumentation},
    uuid = {ABBB450F-401B-466E-8D0E-264BCF731DC3},
    pages = {715-716},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2012},
    doi = {10.1145/2370216.2370372},
    ISBN = {978-1-4503-1224-0},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2012/UbiMI%20ubiquitous%20mobile%20instr.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp12ubimi.pdf},
    keywords = {Level 2;computing, experiments, frameworks, instrumentation, mobile, studies, ubiquitous},
    tags = {Level 2},
    Medium_consulted = {Web},
    ACMID = {2370216.2370372},
    numpages = {2},
    EndNote_reference_number = {1585},
    Web_data_source = {ACM},
    Series = {UbiComp Adjunct},
    Citation_identifier = {Ferreira 2012a},
    publicationStatus = {Unknown},
    abstract = {Thanks to the rapid development of mobile technologies, smartphones allow people to be reachable anywhere and anytime. In addition to the benefits for end users, researchers and developers can also benefit from the powerful devices that participants potentially carry on a daily basis. This minitrack workshop brings together researchers with an interest on using mobile devices as instruments to collect data and conduct mobile user studies, with a focus on understanding human-behavior, routines and gathering context.}
    }</code>

  • T. Juntunen, V. Kostakos, M. Perttunen, and D. Ferreira, “Web tool for traffic engineers: direct manipulation and visualization of vehicular traffic using google maps,” in International conference on making sense of converging media, 2012, pp. 209-210. doi:10.1145/2393132.2393173
    [BibTeX] [Abstract] [Download PDF]
    We present a lightweight web-based tool aimed for traffic engineers that allows an engineer-friendly way to interact and explore traffic volume statistics. This system has been created in participatory design with experienced traffic engineers from a local traffic center. The tool has been built using common web technologies and utilizing an existing traffic detection loop network, and public online GIS and graph tool APIs.

    <code class="tex bibtex">@inproceedings{juntunen2012web,
    author = {Juntunen, Tomi and Kostakos, Vassilis and Perttunen, Mikko and Ferreira, Denzil},
    booktitle = {International Conference on Making Sense of Converging Media},
    title = {Web tool for traffic engineers: direct manipulation and visualization of vehicular traffic using Google maps},
    uuid = {FB943BF8-AFFA-42B3-A1EA-911D9314A22A},
    pages = {209-210},
    publisher = {ACM},
    organization = {ACM},
    year = {2012},
    doi = {10.1145/2393132.2393173},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Juntunen%2C%20T/2012/Web%20tool%20for%20traffic%20engineers.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mindtrek12.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    Google_Scholar_BibTeX_export_key = {OI95\_vd-r2UJ},
    Web_data_source = {Google Scholar},
    Series = {AcademicMindTrek},
    Citation_identifier = {Juntunen 2012},
    publicationStatus = {Unknown},
    abstract = {We present a lightweight web-based tool aimed for traffic engineers that allows an engineer-friendly way to interact and explore traffic volume statistics. This system has been created in participatory design with experienced traffic engineers from a local traffic center. The tool has been built using common web technologies and utilizing an existing traffic detection loop network, and public online GIS and graph tool APIs.}
    }</code>

  • D. Ferreira, V. Kostakos, and A. K. Dey, “Lessons learned from large-scale user studies: using android market as a source of data,” International journal of mobile human computer interaction, vol. 4, iss. 3, pp. 28-43, 2012. doi:10.4018/jmhci.2012070102
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@article{ferreira2012lessons,
    author = {Ferreira, Denzil and Kostakos, Vassilis and Dey, Anind K.},
    title = {Lessons Learned from Large-Scale User Studies: Using Android Market as a Source of Data},
    journal = {International Journal of Mobile Human Computer Interaction},
    uuid = {EF523D2D-490F-45B5-B3A2-081764E83FEB},
    volume = {4},
    number = {3},
    pages = {28-43},
    publisher = {IGI Global},
    month = {1},
    year = {2012},
    doi = {10.4018/jmhci.2012070102},
    ISSN = {1942-390X},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2012/Lessons%20Learned%20from%20Large-Sca.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ijmhci12.pdf},
    keywords = {Level 1;large-scale study;mobile computing;ubiquitous computing;computer science;mobile devices;application stores},
    tags = {Level 1},
    Google_Scholar_BibTeX_export_key = {BrYG6\_wbvOEJ},
    EndNote_reference_number = {1577},
    Web_data_source = {Google Scholar},
    impact_factor = {1.131},
    Citation_identifier = {Ferreira 2012},
    publicationStatus = {Unknown}
    }</code>

  • T. Linden, T. Heikkinen, V. Kostakos, D. Ferreira, and T. Ojala, “Towards multi-application public interactive displays,” in International symposium on pervasive displays, 2012, p. 9. doi:10.1145/2307798.2307807
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{linden2012towards,
    author = {Linden, T. and Heikkinen, Tommi and Kostakos, Vassilis and Ferreira, Denzil and Ojala, Timo},
    booktitle = {International Symposium on Pervasive Displays},
    title = {Towards multi-application public interactive displays},
    uuid = {9E8ACC1E-B39B-4A71-8E9D-ABD9FED14AED},
    pages = {9},
    publisher = {ACM},
    organization = {ACM},
    year = {2012},
    doi = {10.1145/2307798.2307807},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Linden%2C%20T/2012/Towards%20multi-application%20publ.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/perdis12.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    Google_Scholar_BibTeX_export_key = {v4AodYigr-gJ},
    Web_data_source = {Google Scholar},
    Series = {PerDis},
    Citation_identifier = {Linden 2012},
    publicationStatus = {Unknown}
    }</code>

2011

  • A. K. Dey, K. Wac, D. Ferreira, K. Tassini, J. -. H. Hong, and J. Ramos, “Getting closer: an empirical investigation of the proximity of user to their smart phones,” in International conference on ubiquitous computing, New York, NY, USA, 2011, pp. 163-172. doi:10.1145/2030112.2030135
    [BibTeX] [Abstract] [Download PDF]
    Much research in ubiquitous computing assumes that a user’s phone will be always on and at-hand, for collecting user context and for communicating with a user. Previous work with the previous generation of mobile phones has shown that such an assumption is false. Here, we investigate whether this assumption about users’ proximity to their mobile phones holds for a new generation of mobile phones, smart phones. We conduct a data collection field study of 28 smart phone owners over a period of 4 weeks. We show that in fact this assumption is still false, with the within arm’s reach proximity being true close to 50\% of the time, similar to the earlier work. However, we also show that smart phone proximity within the same room (arm+room) as the user is true almost 90\% of the time. We discuss the reasons for these phone proximities and the implications of this on the development of mobile phone applications, particularly those that collect user and environmental context, and delivering notification to users. We also show that we can accurately predict the proximity at the arm level and arm+room level with 75 and 83\% accuracy, respectively, with features simple to collect and model on a mobile phone. Further we show that for several individuals who are almost always within the arm+room level, we can predict this level with over 90\% accuracy.

    <code class="tex bibtex">@inproceedings{Dey:2011:GCE:2030112.2030135,
    author = {Dey, Anind K. and Wac, K. and Ferreira, Denzil and Tassini, K. and Hong, J. -. H. and Ramos, J.},
    booktitle = {International Conference on Ubiquitous Computing},
    title = {Getting closer: an empirical investigation of the proximity of user to their smart phones},
    uuid = {FCF30660-E277-419D-9543-25ABC81F639B},
    pages = {163-172},
    publisher = {ACM},
    address = {New York, NY, USA},
    year = {2011},
    doi = {10.1145/2030112.2030135},
    ISBN = {978-1-4503-0630-0},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Dey%2C%20AK/2011/Getting%20closer%20an%20empirical%20i.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/ubicomp11a.pdf},
    keywords = {Level 2;mobile devices, mobility, proximity, smart phone},
    tags = {Level 2},
    Medium_consulted = {Web},
    ACMID = {2030112.2030135},
    acceptance_rate = {17\%},
    numpages = {10},
    EndNote_reference_number = {1571},
    Web_data_source = {ACM},
    Series = {UbiComp},
    Citation_identifier = {Dey 2011},
    publicationStatus = {Unknown},
    abstract = {Much research in ubiquitous computing assumes that a user's phone will be always on and at-hand, for collecting user context and for communicating with a user. Previous work with the previous generation of mobile phones has shown that such an assumption is false. Here, we investigate whether this assumption about users' proximity to their mobile phones holds for a new generation of mobile phones, smart phones. We conduct a data collection field study of 28 smart phone owners over a period of 4 weeks. We show that in fact this assumption is still false, with the within arm's reach proximity being true close to 50\% of the time, similar to the earlier work. However, we also show that smart phone proximity within the same room (arm+room) as the user is true almost 90\% of the time. We discuss the reasons for these phone proximities and the implications of this on the development of mobile phone applications, particularly those that collect user and environmental context, and delivering notification to users. We also show that we can accurately predict the proximity at the arm level and arm+room level with 75 and 83\% accuracy, respectively, with features simple to collect and model on a mobile phone. Further we show that for several individuals who are almost always within the arm+room level, we can predict this level with over 90\% accuracy.}
    }</code>

  • J. Venkatanathan, D. Ferreira, M. Benisch, J. Lin, E. Karapanos, V. Kostakos, N. Sadeh, and E. Toch, “Improving users’ consistency when recalling location sharing preferences,” in Ifip tc.13 international conference on human-computer interaction, 2011, pp. 380-387. doi:10.1007/978-3-642-23774-4_31
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{venkatanathan2011improving,
    author = {Venkatanathan, Jayant and Ferreira, Denzil and Benisch, Michael and Lin, Jialiu and Karapanos, Evangelos and Kostakos, Vassilis and Sadeh, Norman and Toch, Eran},
    booktitle = {IFIP TC.13 International Conference on Human-Computer Interaction},
    title = {Improving users' consistency when recalling location sharing preferences},
    uuid = {90D94D21-4A2C-43EF-B6E7-9311FFA7A130},
    pages = {380-387},
    publisher = {Springer},
    year = {2011},
    doi = {10.1007/978-3-642-23774-4_31},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Venkatanathan%2C%20J/2011/Improving%20users%27%20consistency%20w.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/interact11c.pdf},
    keywords = {Level 1},
    tags = {Level 1},
    acceptance_rate = {28\%},
    Google_Scholar_BibTeX_export_key = {BZLdNSWyen8J},
    EndNote_reference_number = {1575},
    Web_data_source = {Google Scholar},
    Series = {INTERACT},
    Citation_identifier = {Venkatanathan 2011},
    publicationStatus = {Unknown}
    }</code>

  • D. Ferreira, A. K. Dey, and V. Kostakos, “Understanding human-smartphone concerns: a study of battery life,” in International conference on pervasive computing, Berlin, Heidelberg, 2011, pp. 19-33. doi:10.1007/978-3-642-21726-5_2
    [BibTeX] [Abstract] [Download PDF]
    This paper presents a large, 4-week study of more than 4000 people to assess their smartphone charging habits to identify timeslots suitable for opportunistic data uploading and power intensive operations on such devices, as well as opportunities to provide interventions to support better charging behavior. The paper provides an overview of our study and how it was conducted using an online appstore as a software deployment mechanism, and what battery information was collected. We then describe how people charge their smartphones, the implications on battery life and energy usage, and discuss how to improve users’ experience with battery life.

    <code class="tex bibtex">@inproceedings{Ferreira:2011:UHC:2021975.2021978,
    author = {Ferreira, Denzil and Dey, Anind K. and Kostakos, Vassilis},
    booktitle = {International Conference on Pervasive Computing},
    title = {Understanding human-smartphone concerns: a study of battery life},
    uuid = {55273E57-ABD9-462E-B2C5-66E86C07148B},
    pages = {19-33},
    publisher = {Springer-Verlag},
    address = {Berlin, Heidelberg},
    year = {2011},
    doi = {10.1007/978-3-642-21726-5_2},
    ISBN = {978-3-642-21725-8},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2011/Understanding%20human-smartphone.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/pervasive11.pdf},
    keywords = {Level 2;android, autonomous logging, battery life, large-scale study, smartphones},
    tags = {Level 2},
    Medium_consulted = {Web},
    ACMID = {2021975.2021978},
    acceptance_rate = {24\%},
    numpages = {15},
    EndNote_reference_number = {1574},
    Web_data_source = {ACM},
    Series = {Pervasive},
    Citation_identifier = {Ferreira 2011},
    publicationStatus = {Unknown},
    abstract = {This paper presents a large, 4-week study of more than 4000 people to assess their smartphone charging habits to identify timeslots suitable for opportunistic data uploading and power intensive operations on such devices, as well as opportunities to provide interventions to support better charging behavior. The paper provides an overview of our study and how it was conducted using an online appstore as a software deployment mechanism, and what battery information was collected. We then describe how people charge their smartphones, the implications on battery life and energy usage, and discuss how to improve users' experience with battery life.}
    }</code>

2010

  • D. Ferreira, M. Freitas, E. Fernandes, and T. Camacho, Technical report, university of madeira, 2010.
    [BibTeX] [Abstract] [Download PDF]
    Recently the Wiimote has been used for exploring a new set of uses besides its original intent, gaming. With the built-in infrared (IR) and accelerometer capabilities, the Wiimote provides different ways for interacting with computers. Taking advantage of the Wiimote IR camera, we can use our fingers to interact with a map application, such as Google Earth. Presented are the results of a brief work about how to control Google Earth using hands gestures and the Wiimote.

    <code class="tex bibtex">@misc{Ferreira2010a,
    author = {Ferreira, Denzil and Freitas, Maria and Fernandes, Emanuel and Camacho, Tiago},
    title = {Technical report, University of Madeira},
    uuid = {BC408EDA-B3F4-4A6E-95F0-3B334AADB0A0},
    pages = {1-4},
    year = {2010},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2010/Wii%20R%20Free%20-%20Google%20Earth%20In%20Y.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/wiirfree.pdf},
    keywords = {Level 0},
    tags = {Level 0},
    Citation_identifier = {Ferreira 2010},
    publicationStatus = {Published},
    abstract = {Recently the Wiimote has been used for exploring a new set of uses besides its original intent, gaming. With the built-in infrared (IR) and accelerometer capabilities, the Wiimote provides different ways for interacting with computers. Taking advantage of the Wiimote IR camera, we can use our fingers to interact with a map application, such as Google Earth. Presented are the results of a brief work about how to control Google Earth using hands gestures and the Wiimote.}
    }</code>

  • D. Ferreira, V. Kostakos, J. Rogstadius, and J. Venkatanathan, “Design, prototyping and evaluation of ambient media: lessons learned from the ambient notifier,” in Mobilehci workshop on tool-support for mobile and pervasive application development, Lisbon, Portugal, 2010, pp. 1-5.
    [BibTeX] [Download PDF]
    <code class="tex bibtex">@inproceedings{ferreiradesign,
    author = {Ferreira, Denzil and Kostakos, Vassilis and Rogstadius, Jakob and Venkatanathan, Jayant},
    booktitle = {MobileHCI Workshop on Tool-Support for Mobile and Pervasive Application Development},
    title = {Design, Prototyping and Evaluation of Ambient Media: Lessons Learned from the Ambient Notifier},
    uuid = {0AE74723-156F-4949-BCCD-AED44626893B},
    pages = {1-5},
    address = {Lisbon, Portugal},
    year = {2010},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2010/Design%2C%20Prototyping%20and%20Evalua.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/mobilehci10ws.pdf},
    keywords = {Level 0},
    tags = {Level 0},
    Google_Scholar_BibTeX_export_key = {xMugA0BJqHwJ},
    Web_data_source = {Google Scholar},
    Citation_identifier = {Ferreira 2010a},
    publicationStatus = {Unknown}
    }</code>

2009

  • D. Ferreira, Msc thesis, 2009.
    [BibTeX] [Abstract] [Download PDF]
    The following document proposes a traceability solution for model-driven development. There as been already previous work done in this area, but so far there has not been yet any standardized way for exchanging traceability information, thus the goal of this project developed and documented here is not to automatize the traceability process but to provide an approach to achieve traceability that follows OMG standards, making traceability information exchangeable between tools that follow the same standards. As such, we propose a traceability meta-model as an extension of MetaObject Facility (MOF). Using MetaSketch modeling language workbench, we present a modeling language for traceability information. This traceability information then can be used for tool cooperation. Using Meta.Tracer (our tool developed for this thesis), we enable the users to establish traceability relationships between different traceability elements and offer a visualization for the traceability information. We then demonstrate the benefits of using a traceability tool on a software development life cycle using a case study. We finalize by commenting on the work developed.

    <code class="tex bibtex">@misc{Ferreira2009a,
    author = {Ferreira, Denzil},
    title = {MSc Thesis},
    uuid = {0A4FFAF7-E511-4899-B860-16B95D642C58},
    pages = {56},
    organization = {Department of Mathematics \&amp; Engineering, University of Madeira},
    year = {2009},
    sentelink = {{http://hdl.handle.net/10400.13/80},Mendeley,Web page},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2009/Meta.Tracer%20-%20MOF%20with%20traceab.pdf,Sente,},
    url = {http://hdl.handle.net/10400.13/80},
    keywords = {Level 0},
    tags = {Level 0},
    Description = {MSc Thesis},
    Citation_identifier = {Ferreira 2009a},
    publicationStatus = {Published},
    abstract = {The following document proposes a traceability solution for model-driven development. There as been already previous work done in this area, but so far there has not been yet any standardized way for exchanging traceability information, thus the goal of this project developed and documented here is not to automatize the traceability process but to provide an approach to achieve traceability that follows OMG standards, making traceability information exchangeable between tools that follow the same standards. As such, we propose a traceability meta-model as an extension of MetaObject Facility (MOF). Using MetaSketch modeling language workbench, we present a modeling language for traceability information. This traceability information then can be used for tool cooperation. Using Meta.Tracer (our tool developed for this thesis), we enable the users to establish traceability relationships between different traceability elements and offer a visualization for the traceability information. We then demonstrate the benefits of using a traceability tool on a software development life cycle using a case study. We finalize by commenting on the work developed.}
    }</code>

  • D. Ferreira, M. Freitas, J. Rodrigues, and V. Ferreira, “Twitviz – exploring twitter network for your interests,” University of Madeira 2009.
    [BibTeX] [Abstract] [Download PDF]
    In this paper we explore a tool that allows you to explore your social network on Twitter. Twitviz, is a desktop application that allows users to explore their social networks on Twitter based on their interests. Twitviz provides two main tools in the form social network graphs: the Keyword view displays relationships between keywords of interest and users tweeting about them; and the user’s egocentric Network view that emphasizes on reciprocal followers. We believe these visualizations provide an easy and useful way of identifying both known and unknown users with related interests, thereby promoting expansion and specialization of their social network.

    <code class="tex bibtex">@techreport{Ferreira2009,
    author = {Ferreira, Denzil and Freitas, Maria and Rodrigues, João and Ferreira, Vitor},
    title = {Twitviz - Exploring Twitter network for your interests},
    uuid = {D0894264-3FEA-4539-AA3A-B72E24CA4A09},
    pages = {1-8},
    institution = {University of Madeira},
    year = {2009},
    sentelink = {file:///Users/denzil/bibliography_comag.sente6lib/Contents/Attachments/Ferreira%2C%20D/2009/Twitviz%20-%20Exploring%20Twitter%20ne.pdf,Sente,},
    url = {http://ubicomp.oulu.fi/files/twitviz.pdf},
    keywords = {Level 0},
    tags = {Level 0},
    Citation_identifier = {Ferreira 2009},
    publicationStatus = {Published},
    abstract = {In this paper we explore a tool that allows you to explore your social network on Twitter. Twitviz, is a desktop application that allows users to explore their social networks on Twitter based on their interests. Twitviz provides two main tools in the form social network graphs: the Keyword view displays relationships between keywords of interest and users tweeting about them; and the user’s egocentric Network view that emphasizes on reciprocal followers. We believe these visualizations provide an easy and useful way of identifying both known and unknown users with related interests, thereby promoting expansion and specialization of their social network.}
    }</code>