Denzil Ferreira, Dr. Tech., MSc HCI, Soft. Eng.

Denzil Ferreira, Dr. Tech., MSc HCI, Soft. Eng.
Academy of Finland Postdoc Fellow
Ubiquitous Computing, Mobile Development, Pervasive Technologies


Center for Ubiquitous Computing
61° 55' 26.796" N, 25° 44' 53.3436" E
Teaching activities: 


  • Adjunct Lecturer for Collecting and Using Data for Interactive Systems (05-839, Spring 2016) at Carnegie Mellon University, Pittsburgh.
  • Lecturer for Mobile & Social Computing (Spring 2016) at University of Oulu, Finland.
  • Adjunct Lecturer for User Centered Research and Evaluation (UCRE’14 – Fall semester) at Human-Computer Interaction Institute, Carnegie Mellon University, Pittsburgh.
  • Teaching Assistant for Mobile & Social Computing (Spring 2013, Spring 2014) at University of Oulu, Finland.
  • Teaching Assistant for Human-Computer Interaction (Fall 2012, Fall 2013) at University of Oulu, Finland.
  • Teaching Assistant for Research Methods (Fall 2012, Fall 2013) at University of Oulu, Finland.


  • Mikko Korhonen, Aku Visuri, Riku Kallio & Henri Koski (Joint BSc., 2015)
    • AWARE Webservices 2.0 – Improve AWARE’s dashboard to support concurrent studies, users’ authentication and collaboration.
  • Aku Visuri (MSc., 2016)
    • Smartphone-based Generic Symptom Tracker.
  • Riku Kallio (MSc., 2016)
    • Context-aware mobile customer relationship manager, in collaboration with ZEF.
  • Alexander Samodelkin (MSc., ongoing)
    • Cyclist-aware Traffic Lights Management.
  • Juan Camilo (MSc., ongoing)
    • Multimodal Queue Estimation
  • Mitra Vahida (MSc., ongoing)
    • Transient IoT Controller, in collaboration with ARM.
Research projects: 
  • January-present 2016: Visiting IndoorAtlas Inc, part of the Core Team (Android) to improve their Android SDK functionalities.
  • September-February 2016: Visiting Haltian Oy Visionary Labs, to evaluate the usability and test a novel device: Snowfox, to be released at WMC’16 in Barcelona and available in selected markets 2Q 2016.
  • August-December 2014: Visiting Prof. Anind Dey’s research group at the UbicompLab at Carnegie Mellon University, US to design and create mobile support systems for tracking Parkinson’s medication; contextual factors on binge drinking; and studying the effects of cancer treatment on patients daily routines.
  • June-July 2014: Visiting Prof. Cecilia Mascolo’s research group at the Computer Laboratory at University of Cambridge, UK to design social context probes that leverage smartphone usage, ambient noise classification and geo-fenced social semantics.
  • October 2013-March 2014: Visiting Prof. Jouni Jaakkola’s research group at Centre of Environmental and Respiratory Health at University of Oulu’s Medical Faculty to develop a mobile environmental probe to assess air quality’s effects on asthma patients daily lives.
  • September 2011 ~ September 2013: as a HCI/Ubicomp/Mobile Research Scientist (iUBI, CSE, University of Oulu): Instrumenting the city of Oulu by leveraging panOULU infrastructure (WiFi AP, Bluetooth AP, traffic sensors, public displays and projectors, city lights), augmented with AWARE mobile context middleware (
  • February-August 2011: as a HCI Researcher (Ubicomp Lab, HCII, Carnegie Mellon University): Collecting massive amount of data from a large-scale deployment of context-aware information from mobile devices with the Ubicomp Lab group at CMU HCII. One paper accepted atUbicomp’11, where we analyzed how far are current smartphone users from their devices on multiple conditions. In collaboration with M-ITI, we published two papers on users’ location sharing preferences and perceptions (Interact’11CMU-LSCS 2011).
  • June-September 2010: as a HCI Researcher (Ubicomp Lab, HCII, Carnegie Mellon University): User research, data mining and visualization, user studies and interviews for the Ubicomp Lab group at CMU. Our group explored how people use their mobile phones and how they manage the battery life. Published the results at Pervasive’11. We also looked at what applications people use on their devices and where they use it (home, work, outside). Started the project Aware framework, where Android mobile devices are used to collect context information.
  • February-May 2010: as a HCI Researcher (Madeira Interactive Technologies Institute): Retrospective, Think-alouds, Prototyping, Interviews, Questionnaires for SINAIS project. Integration and information sharing between different devices motivated us to build a publish-subscribe server based on JXTA and XMPP. Gathering phone events (ringing, missed call, received sms) we assessed how frequently people interact with their phones to check for these events, using Ambient Notifier (paper published at MobileHCI’10). As a proof of concept, we built Smart Mail box, that would send an email for each mail received.
  • August-December 2009: as a HCI Researcher (University of Pittsburgh): Contextual Inquiries, Surveys, Prototyping and Interviews for the Dental Informatics Department at University of Pittsburgh. We explored how could a patient oriented treatment plan change the patient’s understanding of his/her’s own dental records.


  • Ferreira, D., Kostakos, V., Schweizer, I. Human Sensors on the Move, Chapter 1 in Participatory Sensing, Opinions and Collective Awareness – Understanding Complex Systems (doi: 10.1007/978-3-319-25658-0_1) (in press, Springer)