Denzil Ferreira

92 papers A* 8A 1B 9C 1Misc 9Journal 27Unranked 34

Year	Rank	Type	Title / Venue / Authors
2024	J	`jnl`	Addressing Data Challenges to Drive the Transformation of Smart Cities. ACM Trans. Intell. Syst. Technol. Ekaterina Gilman, Francesca Bugiotti, Ahmed Khalid, Hassan Mehmood, Panos Kostakos, Lauri Tuovinen, Johanna Ylipulli, Xiang Su, Denzil Ferreira
2023	J	`jnl`	"Leave your smartphone out of bed": quantitative analysis of smartphone use effect on sleep quality. Pers. Ubiquitous Comput. Saba Kheirinejad, Aku Visuri, Denzil Ferreira, Simo Hosio
2023	J	`jnl`	AWARE-Light: a smartphone tool for experience sampling and digital phenotyping. Pers. Ubiquitous Comput. Niels van Berkel, Simon D'Alfonso, Rio Kurnia Susanto, Denzil Ferreira, Vassilis Kostakos
2023	J	`jnl`	Exploring crowdsourced self-care techniques: A study on Parkinson's disease. Int. J. Hum. Comput. Stud. Elina Kuosmanen, Eetu Huusko, Niels van Berkel, Francisco Nunes, Julio Vega, Jorge Gonçalves, Mohamed Khamis, Augusto Esteves, Denzil Ferreira, Simo Hosio
2022	J	`jnl`	How Does Sleep Tracking Influence Your Life?: Experiences from a Longitudinal Field Study with a Wearable Ring. Proc. ACM Hum. Comput. Interact. Elina Kuosmanen, Aku Visuri, Saba Kheirinejad, Niels van Berkel, Heli Koskimäki, Denzil Ferreira, Simo Hosio
2022	J	`jnl`	Mood ratings and digital biomarkers from smartphone and wearable data differentiates and predicts depression status: A longitudinal data analysis. Pervasive Mob. Comput. Kennedy Opoku Asare, Isaac Moshe, Yannik Terhorst, Julio Vega, Simo Hosio, Harald Baumeister, Laura Pulkki-Råback, Denzil Ferreira
2021	A*	`conf`	Assessing MyData Scenarios: Ethics, Concerns, and the Promise. CHI Andy Alorwu, Saba Kheirinejad, Niels van Berkel, Marianne Kinnula, Denzil Ferreira, Aku Visuri, Simo Hosio
2021	—	`conf`	Me in the Wild: An Exploratory Study Using Smartphones to Detect the Onset of Depression. MobiHealth Kennedy Opoku Asare, Aku Visuri, Julio Vega, Denzil Ferreira
2021	J	`jnl`	Understanding usage style transformation during long-term smartwatch use. Pers. Ubiquitous Comput. Aku Visuri, Niels van Berkel, Jorge Gonçalves, Reza Rawassizadeh, Denzil Ferreira, Vassilis Kostakos
2020	—	`conf`	IOS Crowd-Sensing Won't Hurt a Bit!: AWARE Framework and Sustainable Study Guideline for iOS Platform. HCI (23) Yuuki Nishiyama, Denzil Ferreira, Yusaku Eigen, Wataru Sasaki, Tadashi Okoshi, Jin Nakazawa, Anind K. Dey, Kaoru Sezaki
2020	A*	`conf`	Let's Draw: Detecting and Measuring Parkinson's Disease on Smartphones. CHI Elina Kuosmanen, Valerii Kan, Aku Visuri, Simo Hosio, Denzil Ferreira
2020	—	`conf`	MEEC: First Workshop on Momentary Emotion Elicitation and Capture. CHI Extended Abstracts Abdallah El Ali, Monica Perusquía-Hernández, Pete Denman, Yomna Abdelrahman, Mariam Hassib, Alexander Meschtscherjakov, Denzil Ferreira, Niels Henze
2020	—	`conf`	Using iOS for inconspicuous data collection: a real-world assessment. UbiComp/ISWC Adjunct Yuuki Nishiyama, Denzil Ferreira, Wataru Sasaki, Tadashi Okoshi, Jin Nakazawa, Anind K. Dey, Kaoru Sezaki
2020	J	`jnl`	When phones get personal: Predicting Big Five personality traits from application usage. Pervasive Mob. Comput. Ella Peltonen, Parsa Sharmila, Kennedy Opoku Asare, Aku Visuri, Eemil Lagerspetz, Denzil Ferreira
2019	B	`conf`	Challenges of Parkinson's Disease: User Experiences with STOP. MobileHCI Elina Kuosmanen, Valerii Kan, Julio Vega, Aku Visuri, Yuuki Nishiyama, Anind K. Dey, Simon Harper, Denzil Ferreira
2019	A*	`conf`	Context-Informed Scheduling and Analysis: Improving Accuracy of Mobile Self-Reports. CHI Niels van Berkel, Jorge Gonçalves, Peter Koval, Simo Hosio, Tilman Dingler, Denzil Ferreira, Vassilis Kostakos
2019	J	`jnl`	Continuous Authentication of Smartphones Based on Application Usage. IEEE Trans. Biom. Behav. Identity Sci. Upal Mahbub, Jukka Komulainen, Denzil Ferreira, Rama Chellappa
2019	J	`jnl`	Effect of experience sampling schedules on response rate and recall accuracy of objective self-reports. Int. J. Hum. Comput. Stud. Niels van Berkel, Jorge Gonçalves, Lauri Lovén, Denzil Ferreira, Simo Hosio, Vassilis Kostakos
2019	J	`jnl`	Energy-efficient prediction of smartphone unlocking. Pers. Ubiquitous Comput. Chu Luo, Aku Visuri, Simon Klakegg, Niels van Berkel, Zhanna Sarsenbayeva, Antti Möttönen, Jorge Gonçalves, Theodoros Anagnostopoulos, Denzil Ferreira, Huber Flores, Eduardo Velloso, Vassilis Kostakos
2019	J	`jnl`	Learning-Assisted Optimization in Mobile Crowd Sensing: A Survey. IEEE Trans. Ind. Informatics Jiangtao Wang, Yasha Wang, Daqing Zhang, Jorge Gonçalves, Denzil Ferreira, Aku Visuri, Sen Ma
2019	—	`conf`	Measuring Parkinson's disease motor symptoms with smartphone-based drawing tasks. UbiComp/ISWC Adjunct Elina Kuosmanen, Valerii Kan, Aku Visuri, Assam Boudjelthia, Lokmane Krizou, Denzil Ferreira
2019	—	`conf`	Towards early detection of depression through smartphone sensing. UbiComp/ISWC Adjunct Kennedy Opoku Asare, Aku Visuri, Denzil Ferreira
2018	J	`jnl`	Assisted Medication Management in Elderly Care Using Miniaturised Near-Infrared Spectroscopy. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. Simon Klakegg, Jorge Gonçalves, Chu Luo, Aku Visuri, Alexey Popov, Niels van Berkel, Zhanna Sarsenbayeva, Vassilis Kostakos, Simo Hosio, Scott Savage, Alexander Bykov, Igor V. Meglinski, Denzil Ferreira
2018	J	`jnl`	Continuous Authentication of Smartphones Based on Application Usage. CoRR Upal Mahbub, Jukka Komulainen, Denzil Ferreira, Rama Chellappa
2018	—	`conf`	Enabling Mid-air Browser Interaction with Leap Motion. UbiComp/ISWC Adjunct Assam Boudjelthia, Sofeem Nasim, Janne Eskola, Joshua Muyiwa Adeegbe, Oula Hourula, Simon Klakegg, Denzil Ferreira
2018	—	`conf`	Identifying bottlenecks in work processes: Elderly care. SeGAH Hanna-Leena Huttunen, Raija Halonen, Denzil Ferreira
2018	B	`conf`	Mobile-based Monitoring of Parkinson's Disease. MUM Elina Kuosmanen, Valerii Kan, Aku Visuri, Julio Vega, Yuuki Nishiyama, Anind K. Dey, Simon Harper, Denzil Ferreira
2018	—	`conf`	S3: environmental fingerprinting with a credit card-sized NFC powered sensor board. MobileHCI Adjunct Kennedy Opoku Asare, Tore Leikanger, Christian Schuss, Simon Klakegg, Aku Visuri, Denzil Ferreira
2018	—	`conf`	STOP: A Smartphone-based Game for Parkinson's Disease Medication Adherence. UbiComp/ISWC Adjunct Valerii Kan, Dorina Rajanen, Kennedy Opoku Asare, Denzil Ferreira
2018	—	`conf`	Senbay: a platform for instantly capturing, integrating, and restreaming of synchronized multiple sensor-data stream. MobileHCI Adjunct Yuuki Nishiyama, Anind K. Dey, Denzil Ferreira, Takuro Yonezawa, Jin Nakazawa
2018	J	`jnl`	The Experience Sampling Method on Mobile Devices. ACM Comput. Surv. Niels van Berkel, Denzil Ferreira, Vassilis Kostakos
2018	—	`conf`	The gravity of thought: exploring positively surprising interactions. MobileHCI Adjunct Yazan Barhoush, Miikka Mustonen, Denzil Ferreira, Georgi V. Georgiev, Daniel Nguyen, Matti Pouke
2018	—	`conf`	Ubiquitous Mobile Sensing: Behaviour, Mood, and Environment. UbiComp/ISWC Adjunct Aku Visuri, Kennedy Opoku Asare, Elina Kuosmanen, Yuuki Nishiyama, Denzil Ferreira, Zhanna Sarsenbayeva, Jorge Gonçalves, Niels van Berkel, Greg Wadley, Vassilis Kostakos, Sarah Clinch, Oludamilare Matthews, Simon Harper, Amy Jenkins, Stephen Snow, m. c. schraefel
2017	J	`jnl`	Are Smartphones Ubiquitous?: An in-depth survey of smartphone adoption by seniors. IEEE Consumer Electron. Mag. Anabela Berenguer, Jorge Gonçalves, Simo Hosio, Denzil Ferreira, Theodoros Anagnostopoulos, Vassilis Kostakos
2017	—	`conf`	Challenges of Quantified-Self: Encouraging Self-Reported Data Logging During Recurrent Smartphone Usage. BCS HCI Aku Visuri, Niels van Berkel, Chu Luo, Jorge Gonçalves, Denzil Ferreira, Vassilis Kostakos
2017	—	`conf`	Designing a context-aware assistive infrastructure for elderly care. UbiComp/ISWC Adjunct Simon Klakegg, Niels van Berkel, Aku Visuri, Hanna-Leena Huttunen, Simo Hosio, Chu Luo, Jorge Gonçalves, Denzil Ferreira
2017	J	`jnl`	Detecting Drinking Episodes in Young Adults Using Smartphone-based Sensors. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. Sangwon Bae, Denzil Ferreira, Brian Suffoletto, Juan C. Puyana, Ryan Kurtz, Tammy Chung, Anind K. Dey
2017	J	`jnl`	Donating Context Data to Science: The Effects of Social Signals and Perceptions on Action-Taking. Interact. Comput. Yong Liu, Denzil Ferreira, Jorge Gonçalves, Simo Hosio, Pratyush Pandab, Vassilis Kostakos
2017	J	`jnl`	Environmental exposure assessment using indoor/outdoor detection on smartphones. Pers. Ubiquitous Comput. Theodoros Anagnostopoulos, Juan Camilo Garcia, Jorge Gonçalves, Denzil Ferreira, Simo Hosio, Vassilis Kostakos
2017	B	`conf`	Exploring mobile ad formats to increase brand recollection and enhance user experience. MUM Aku Visuri, Simo Hosio, Denzil Ferreira
2017	—	`ch.`	Human Sensors on the Move. Participatory Sensing, Opinions and Collective Awareness Denzil Ferreira, Vassilis Kostakos, Immanuel Schweizer
2017	—	`ch.`	Human Sensors. Participatory Sensing, Opinions and Collective Awareness Vassilis Kostakos, Jakob Rogstadius, Denzil Ferreira, Simo Hosio, Jorge Gonçalves
2017	—	`conf`	Informing Caregivers Through an Assistive Tool: An Investigation of Elderly Care Metrics. BCS HCI Simon Klakegg, Niels van Berkel, Aku Visuri, Chu Luo, Jorge Gonçalves, Simo Hosio, Hanna-Leena Huttunen, Denzil Ferreira
2017	B	`conf`	Predicting interruptibility for manual data collection: a cluster-based user model. MobileHCI Aku Visuri, Niels van Berkel, Chu Luo, Jorge Gonçalves, Denzil Ferreira, Vassilis Kostakos
2017	A*	`conf`	Quantifying Sources and Types of Smartwatch Usage Sessions. CHI Aku Visuri, Zhanna Sarsenbayeva, Niels van Berkel, Jorge Gonçalves, Reza Rawassizadeh, Vassilis Kostakos, Denzil Ferreira
2017	—	`conf`	Smartphone detection of collapsed buildings during earthquakes. UbiComp/ISWC Adjunct Aku Visuri, Zeyun Zhu, Denzil Ferreira, Shin'ichi Konomi, Vassilis Kostakos
2017	J	`jnl`	Social-aware hybrid mobile offloading. Pervasive Mob. Comput. Huber Flores, Rajesh Sharma, Denzil Ferreira, Vassilis Kostakos, Jukka Manner, Sasu Tarkoma, Pan Hui, Yong Li
2017	J	`jnl`	TestAWARE: A Laboratory-Oriented Testing Tool for Mobile Context-Aware Applications. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. Chu Luo, Miikka Kuutila, Simon Klakegg, Denzil Ferreira, Huber Flores, Jorge Gonçalves, Mika Mäntylä, Vassilis Kostakos
2017	—	`conf`	Towards altruistic data quality assessment for mobile sensing. UbiComp/ISWC Adjunct Eija Ferreira, Denzil Ferreira
2017	—	`conf`	UbiMI'17: ubiquitous mobile instrumentation. UbiComp/ISWC Adjunct Aku Visuri, Denzil Ferreira, Susanna Pirttikangas, Vassilis Kostakos, Kåre Synnes, Janne Lindqvist, Yuuki Nishiyama
2017	C	`conf`	Understanding elderly care: a field-study for designing future homes. iiWAS Hanna-Leena Huttunen, Simon Klakegg, Niels van Berkel, Aku Visuri, Denzil Ferreira, Raija Halonen
2017	—	`conf`	Vision-based happiness inference: a feasibility case-study. UbiComp/ISWC Adjunct Zhanna Sarsenbayeva, Denzil Ferreira, Niels van Berkel, Chu Luo, Mikko Vaisanen, Vassilis Kostakos, Jorge Gonçalves
2017	J	`jnl`	Where's everybody? Comparing the use of heatmaps to uncover cities' tacit social context in smartphones and pervasive displays. J. Inf. Technol. Tour. Andreas Komninos, Jeries Besharat, Denzil Ferreira, John D. Garofalakis, Vassilis Kostakos
2016	—	`conf`	3 UbiComp Adjunct Denzil Ferreira, Tadashi Okoshi, Yuuki Nishiyama, Christian Koehler, Jung Wook Park, Andrés Lucero
2016	A*	`conf`	A Systematic Assessment of Smartphone Usage Gaps. CHI Niels van Berkel, Chu Luo, Theodoros Anagnostopoulos, Denzil Ferreira, Jorge Gonçalves, Simo Hosio, Vassilis Kostakos
2016	—	`conf`	Contact lingo keyboard. UbiComp Adjunct Ahsan Manzoor, Denzil Ferreira
2016	J	`jnl`	Cyclist-aware traffic lights through distributed smartphone sensing. Pervasive Mob. Comput. Theodoros Anagnostopoulos, Denzil Ferreira, Alexander Samodelkin, Muzamil Ahmed, Vassilis Kostakos
2016	—	`conf`	How to validate mobile crowdsourcing design? leveraging data integration in prototype testing. UbiComp Adjunct Chu Luo, Miikka Kuutila, Simon Klakegg, Denzil Ferreira, Huber Flores, Jorge Gonçalves, Vassilis Kostakos, Mika Mäntylä
2016	B	`conf`	Indoor light scavenging on smartphones. MUM Denzil Ferreira, Christian Schuss, Chu Luo, Jorge Gonçalves, Vassilis Kostakos, Timo Rahkonen
2016	Misc	`conf`	Modelling smartphone usage: a markov state transition model. UbiComp Vassilis Kostakos, Denzil Ferreira, Jorge Gonçalves, Simo Hosio
2016	A*	`conf`	Monetary Assessment of Battery Life on Smartphones. CHI Simo Hosio, Denzil Ferreira, Jorge Gonçalves, Niels van Berkel, Chu Luo, Muzamil Ahmed, Huber Flores, Vassilis Kostakos
2016	B	`conf`	Online?: a study of smartphone Internet availability. MUM Denzil Ferreira, Huber Flores, Karel Vandenbroucke, Aku Visuri
2016	J	`jnl`	Practical simulation of virtual crowds using points of interest. Comput. Environ. Urban Syst. Matti Pouke, Jorge Gonçalves, Denzil Ferreira, Vassilis Kostakos
2016	—	`conf`	Social-aware device-to-device communication: a contribution for edge and fog computing? UbiComp Adjunct Huber Flores, Denzil Ferreira, Chu Luo, Vassilis Kostakos, Pan Hui, Rajesh Sharma, Sasu Tarkoma, Yong Li
2015	J	`jnl`	AWARE: mobile context instrumentation framework. Frontiers ICT Denzil Ferreira, Vassilis Kostakos, Anind K. Dey
2015	—	`conf`	Bazaar: a situated crowdsourcing market. UbiComp/ISWC Adjunct Jorge Gonçalves, Simo Hosio, Denzil Ferreira, Theodoros Anagnostopoulos, Vassilis Kostakos
2015	Misc	`conf`	Revisitation analysis of smartphone app use. UbiComp Simon L. Jones, Denzil Ferreira, Simo Hosio, Jorge Gonçalves, Vassilis Kostakos
2015	—	`conf`	Securacy: an empirical investigation of Android applications' network usage, privacy and security. WISEC Denzil Ferreira, Vassilis Kostakos, Alastair R. Beresford, Janne Lindqvist, Anind K. Dey
2015	J	`jnl`	The Rise of Ubiquitous Instrumentation. Frontiers ICT Vassilis Kostakos, Denzil Ferreira
2015	—	`conf`	The curse of quantified-self: an endless quest for answers. UbiComp/ISWC Adjunct Niels van Berkel, Chu Luo, Denzil Ferreira, Jorge Gonçalves, Vassilis Kostakos
2015	B	`conf`	Understanding the Challenges of Mobile Phone Usage Data. MobileHCI Karen Church, Denzil Ferreira, Nikola Banovic, Kent Lyons
2014	A*	`conf`	CHI 1994-2013: mapping two decades of intellectual progress through co-word analysis. CHI Yong Liu, Jorge Gonçalves, Denzil Ferreira, Bei Xiao, Simo Hosio, Vassilis Kostakos
2014	—	`conf`	Contextual experience sampling of mobile application micro-usage. Mobile HCI Denzil Ferreira, Jorge Gonçalves, Vassilis Kostakos, Louise Barkhuus, Anind K. Dey
2014	A	`conf`	Game of words: tagging places through crowdsourcing on public displays. Conference on Designing Interactive Systems Jorge Gonçalves, Simo Hosio, Denzil Ferreira, Vassilis Kostakos
2014	Misc	`conf`	Identity crisis of ubicomp?: mapping 15 years of the field's development and paradigm change. UbiComp Yong Liu, Jorge Gonçalves, Denzil Ferreira, Simo Hosio, Vassilis Kostakos
2014	—	`conf`	Mobile cloud storage: a contextual experience. Mobile HCI Karel Vandenbroucke, Denzil Ferreira, Jorge Gonçalves, Vassilis Kostakos, Katrien De Moor
2014	Misc	`conf`	Projective testing of diurnal collective emotion. UbiComp Jorge Gonçalves, Pratyush Pandab, Denzil Ferreira, Mohammad Ghahramani, Guoying Zhao, Vassilis Kostakos
2014	Misc	`conf`	Pulse: low bitrate wireless magnetic communication for smartphones. UbiComp Weiwei Jiang, Denzil Ferreira, Jani Ylioja, Jorge Gonçalves, Vassilis Kostakos
2014	A*	`conf`	Situated crowdsourcing using a market model. UIST Simo Hosio, Jorge Gonçalves, Vili Lehdonvirta, Denzil Ferreira, Vassilis Kostakos
2013	—	`—`	AWARE:a mobile context instrumentation middleware to collaboratively understand human behavior. Denzil Ferreira
2013	Misc	`conf`	Crowdsourcing on the spot: altruistic use of public displays, feasibility, performance, and behaviours. UbiComp Jorge Gonçalves, Denzil Ferreira, Simo Hosio, Yong Liu, Jakob Rogstadius, Hannu Kukka, Vassilis Kostakos
2013	B	`conf`	HotCity: enhancing ubiquitous maps with social context heatmaps. MUM Andreas Komninos, Jeries Besharat, Denzil Ferreira, John D. Garofalakis
2013	Misc	`conf`	Revisiting human-battery interaction with an interactive battery interface. UbiComp Denzil Ferreira, Eija Ferreira, Jorge Gonçalves, Vassilis Kostakos, Anind K. Dey
2013	—	`conf`	Ubiquitous mobile instrumentation. UbiComp (Adjunct Publication) Denzil Ferreira, Christian Koehler, Evangelos Karapanos, Vassilis Kostakos
2012	J	`jnl`	Lessons Learned from Large-Scale User Studies: Using Android Market as a Source of Data. Int. J. Mob. Hum. Comput. Interact. Denzil Ferreira, Vassilis Kostakos, Anind K. Dey
2012	B	`conf`	Testdroid: automated remote UI testing on Android. MUM Jouko Kaasila, Denzil Ferreira, Vassilis Kostakos, Timo Ojala
2012	—	`conf`	Towards multi-application public interactive displays. PerDis Tomas Lindén, Tommi Heikkinen, Vassilis Kostakos, Denzil Ferreira, Timo Ojala
2012	Misc	`conf`	UbiMI: ubiquitous mobile instrumentation. UbiComp Denzil Ferreira, Emiliano Miluzzo, Jonna Häkkilä, Tom Lovett, Vassilis Kostakos
2012	—	`conf`	Web tool for traffic engineers: direct manipulation and visualization of vehicular traffic using Google maps. MindTrek Tomi Juntunen, Vassilis Kostakos, Mikko Perttunen, Denzil Ferreira
2011	Misc	`conf`	Getting closer: an empirical investigation of the proximity of user to their smart phones. UbiComp Anind K. Dey, Katarzyna Wac, Denzil Ferreira, Kevin Tassini, Jin-Hyuk Hong, Julian Ramos
2011	—	`conf`	Improving Users' Consistency When Recalling Location Sharing Preferences. INTERACT (1) Jayant Venkatanathan, Denzil Ferreira, Michael Benisch, Jialiu Lin, Evangelos Karapanos, Vassilis Kostakos, Norman M. Sadeh, Eran Toch
2011	—	`conf`	Understanding Human-Smartphone Concerns: A Study of Battery Life. Pervasive Denzil Ferreira, Anind K. Dey, Vassilis Kostakos