A set of selected publications on my main areas of research. For a complete list check my Google Scholar page.

2017

In-context Q&A to Support Blind People Using Smartphones

André Rodrigues, Kyle Montague, Hugo Nicolau, João Guerreiro and Tiago Guerreiro

ASSETS 2017 - 19th International ACM SIGACCESS Conference on Computers and Accessibility. Baltimore, Maryland, USA, October, 2017.

[ pdf ]

Improving Smartphone Accessibility with Personalizable Static Overlays

André Rodrigues, André Santos, Kyle Montague and Tiago Guerreiro

ASSETS 2017 - 19th International ACM SIGACCESS Conference on Computers and Accessibility. Baltimore, Maryland, USA, October, 2017.

[ pdf ]

Characterizing Social Insider Attacks on Facebook

Wali Usmani, Diogo Marques, Ivan Beschastnikh, Konstantin Beznosov, Tiago Guerreiro, Luís Carriço

ACM CHI 2017 - ACM Conference on Human Factors in Computing Systems, Denver, Colorado, USA, May, 2017

[ pdf ]

Investigating Laboratory and Everyday Typing Performance of Blind Users

Hugo Nicolau, Kyle Montague, Tiago Guerreiro, André Rodrigues, Vicki Hanson

ACM Transactions on Accessible Computing, 2017

[ pdf ]

2016

Interface para auxiliar cuidadores no registro diário e visualização de informações de pacientes com demência

Wilmax Cruz, Seiji Isotani, Luis Carriço, Tiago Guerreiro

IHC 2016 - Simpósio Brasileiro sobre Fatores Humanos em Sistemas Computacionais

[ pdf ]

Towards Inviscid Text-Entry for Blind People through Non-Visual Word Prediction Interfaces

Kyle Montague, João Guerreiro, André Rodrigues, Tiago Guerreiro, Hugo Nicolau, Daniel Gonçalves

ACM CHI 2016 Workshop on Inviscid Text Entry and Beyond, San Jose, USA, April, 2016

[ pdf ]

Snooping on Mobile Phones: Prevalence and Trends

Diogo Marques, Ildar Muslukhov, Tiago Guerreiro, Luis Carriço, Konstantin Beznosov

SOUPS 2016 - Twelfth Symposium on Usable Privacy and Security, Denver, USA, June, 2016

[ pdf ] [ distinguished paper award ]

Effect of Target Size on Non-Visual Text-Entry

Kyle Montague, João Guerreiro, André Rodrigues, Tiago Guerreiro, Hugo Nicolau, Daniel Gonçalves

MobileHCI 2016 - 18th International Conference on Human-Computer Interaction with Mobile Devices and Services, Florence, Italy, September, 2016

[ pdf ] [ honourable mention ]

2015

Getting Smartphones to TalkBack: Understanding the Smartphone Adoption Process of Blind Users

André Rodrigues, Kyle Montague, Hugo Nicolau, Tiago Guerreiro

ASSETS 2015 - 17th International ACM SIGACCESS Conference on Computers and Accessibility. Lisboa, Portugal, October, 2015

[ pdf ]

Usage of Subjective Scales in Accessibility Research

Shari Trewin, Diogo Marques, Tiago Guerreiro

ASSETS 2015 - 17th International ACM SIGACCESS Conference on Computers and Accessibility. Lisboa, Portugal, October, 2015

[ pdf ]

HoliBraille: Multipoint Vibrotactile Feedback on Mobile Devices

Hugo Nicolau, Kyle Montague, Tiago Guerreiro, André Rodrigues, Vicki Hanson

W4A 2015 - 12th International Web for All Conference, Florence, Italy, May, 2015

[ pdf ]

Physical Intrusion Detection for Android Smartphones

Joana Velho, Diogo Marques, Tiago Guerreiro, Luís Carriço

INFORUM 2015 - Simpósio de Informática. Beira Interior, Portugal, Setembro, 2015

[ pdf ]

OptimusWeb: Selective Delivery of Desktop or Mobile Webpages

Nádia Fernandes, Tiago Guerreiro, Diogo Marques, Luís Carriço

W4A 2015 - 12th International Web for All Conference, Florence, Italy, May, 2015

[ pdf ]

A terapia de reminiscência em Portugal: oportunidades para ferramentas de suporte digital

Ricardo Antunes, Berta Alves, Wilmax Cruz, Seiji Isotani, Luis Carriço, Tiago Guerreiro

INFORum 2015 - Simpósio de Informática

[ pdf ]

Blind People Interacting with Large Touch Surfaces: Strategies for One-handed and Two-handed Exploration

Tiago Guerreiro, Kyle Montague, João Guerreiro, Rafael Nunes, Hugo Nicolau, Daniel Gonçalves

ITS 2015 - ACM International Conference on Interactive Tabletops and Surfaces, Madeira, Portugal, Novembro, 2015

[ pdf ] [ best paper award ]

TabLETS Get Physical: Non-Visual Text Entry on Tablet Devices

João Guerreiro, André Rodrigues, Kyle Montague, Tiago Guerreiro, Hugo Nicolau, Daniel Gonçalves

ACM CHI 2015 - ACM Conference on Human Factors in Computing Systems, Seoul, South Korea, April, 2015

[ pdf ]

TinyBlackBox: Recovering the Lost Interactions of Mobile In-the-Wild Studies

Kyle Montague, André Rodrigues, Hugo Nicolau, Tiago Guerreiro

ASSETS 2015 - 17th International ACM SIGACCESS Conference on Computers and Accessibility. Lisboa, Portugal, October, 2015

[ pdf ]

Typing Performance of Blind Users: An Analysis of Touch Behaviors, Learning Effect, and In-Situ Usage

Hugo Nicolau, Kyle Montague, André Rodrigues, Tiago Guerreiro, Vicki Hanson

ASSETS 2015 - 17th International ACM SIGACCESS Conference on Computers and Accessibility. Lisboa, Portugal, October, 2015

[ pdf ]

2014

Mobile Touch Screen User Interfaces: Bridging the Gap between Motor Impaired and Able-Bodied Users

Hugo Nicolau, Tiago Guerreiro, Daniel Gonçalves, Joaquim Jorge

Universal Access in the Information Society, Springer. To appear.

[ pdf ]

B#: Chord-based Correction for Multitouch Braille Input

Hugo Nicolau, Kyle Montague, João Guerreiro, Tiago Guerreiro, Vicki HansonACM CHI 2014 - ACM Conference on Human Factors in Computing Systems, Toronto, Canada, April, 2014

ACM CHI 2014 - ACM Conference on Human Factors in Computing Systems, Toronto, Canada, April, 2014

[ pdf ] [ best paper award ]

Measuring Snooping Behavior with Surveys: It's How you Ask About It

Diogo Marques, Tiago Guerreiro, Luís Carriço

ACM CHI 2014 - Extended Abstracts of the ACM Conference on Human Factors in Computing Systems, Toronto, Canada, April, 2014

[ pdf ]

Duress Unlock: Using Covert Signals to Restrict Access to Mobile Devices

Diogo Marques, Tiago Guerreiro, Luís Carriço

CHI 2014 Workshop on Inconspicuous Interaction, Toronto, Canada, April, 2014

[ pdf ]

Mobile Text-Entry and Visual Demands: Reusing and Optimizing Current Solutions

Hugo Nicolau, Tiago Guerreiro, Joaquim Jorge

Universal Access in the Information Society, Springer. 2014.

[ pdf ]

Supporting Autism Therapists: Co-Designing Interventions

Carlos Duarte, Luís Carriço, Tiago Guerreiro, Carla Almeida, Soraia Nobre, Ana Margarida Campos

ACM CHI 2014 - Extended Abstracts of the ACM Conference on Human Factors in Computing Systems, Toronto, Canada, April, 2014

[ pdf ]

SWAT: Mobile System-Wide Assistive Technologies

André Rodrigues, Tiago Guerreiro

HCI 2014 - 28th International British Computer Society Human Computer Interaction Conference, SouthPort, UK, September, 2014

[ pdf ]

Friendsourcing the Unmet Needs of People with Dementia

João Martins, Oliver Schnell, José Carilho, Carlos Duarte, Francisco Couto, Luís Carriço, Tiago Guerreiro

W4A 2014, Seoul, Korea, April, 2014

[ pdf ]

2013

UbiBraille: Designing and Evaluating a Vibrotactile Braille-Reading Device

Hugo Nicolau, João Guerreiro, Tiago Guerreiro, Luís CarriçoASSETS 2013 - 15th International ACM SIGACCESS Conference on Computers and Accessibility. Bellevue, USA, October, 2013

ASSETS 2013 - 15th International ACM SIGACCESS Conference on Computers and Accessibility. Bellevue, USA, October, 2013

[ pdf ]

The Today and Tomorrow of Braille Learning

João Guerreiro, Daniel Gonçalves, Diogo Marques, Tiago Guerreiro, Hugo Nicolau, Kyle Montague

ASSETS 2013 - 15th International ACM SIGACCESS Conference on Computers and Accessibility. Bellevue, USA, October, 2013

[ pdf ]

Under the Table: Tap Authentication for Smartphones

Diogo Marques, Luís Duarte, Tiago Guerreiro, Luís Carriço

HCI 2013 - 27th International British Computer Society Human Computer Interaction Conference. London, UK, September, 2013

[ pdf ]

Towards Ubiquitous Awareness Tools for Blind People

Ivo Rafael, Luís Duarte, Luís Carriço, Tiago Guerreiro

HCI 2013 - 27th International British Computer Society Human Computer Interaction Conference. London, UK, September, 2013

[ pdf ]

Augmenting Braille Input through Multitouch Feedback

Hugo Nicolau, Kyle Montague, João Guerreiro, Diogo Marques, Tiago Guerreiro, Craig Stewart, Vicki Hanson

UIST 2013 - 26th ACM Symposium on User Interface Software and Technology, St. Andrews, United Kingdom, October, 2013

[ pdf ]

2012

Guiding Blind People with Haptic Feedback

Slim Kammoun, Christophe Jouffrais, Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge

Pervasive 2012 workshop on Frontiers in Accessibility for Pervavise Computing , Newcastle, UK, June, 2012

[ pdf ]

A Web-Based Application to Address Individual Interests of Children with Autism Spectrum Disorders

Margarida Silva, Tiago Guerreiro, Daniel Gonçalves, Hugo Silva

DSAI 2012: 4th International Conference on Software Development for Enhancing Accessibility and Fighting Info-exclusion, Douro, Portugal, July 2012

[ pdf ]

Audio-Based Mobile Puzzle Gaming for Blind People

Jaime Carvalho, Tiago Guerreiro, Luis Duarte, Luis Carriço

MOBACC 2012: Mobile Accessibility Workshop at MobileHCI 2012, San Francisco, USA, September 2012

[ pdf ]

2011

TROCAS: Communication Skills Development in Children with Autism Spectrum Disorders via ICT

Margarida Silva, Tiago Guerreiro, Daniel Gonçalves

Proceedings of INTERACT 2011 - 13th IFIP TC13 Conference on Human-Computer Interaction. Lisboa, Portugal, September, 2011

[ pdf ]

Blind People and Mobile Touch-based Text-Entry: Acknowledging the Need for Different Flavors

João Oliveira, Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves

Proceedings of ASSETS 2011 - 13th International ACM SIGACCESS Conference on Computers and Accessibility. Dundee, Scotland, October, 2011

[ pdf ] [ best student paper award ]

BrailleType: Unleashing Braille over Touch Screen Mobile Phones

João Oliveira, Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves

Proceedings of INTERACT 2011 - 13th IFIP TC13 Conference on Human-Computer Interaction. Lisboa, Portugal, September, 2011

[ pdf ] [ peoples' best short paper award ]

Rapid Application Development using Web Technologies: An Application to Communicative Competence Promotion of Children with ASD

Margarida Silva, Tiago Guerreiro, Daniel Gonçalves

HEALTHINF 2011 - Proceedings of the International Conference on Health Informatics. Rome, Italy, January, 2011

[ pdf ]

Blind People and Mobile Keypads: Accounting for Individual Differences

Tiago Guerreiro, João Oliveira, Hugo Nicolau, João Benedito, Joaquim Jorge, Daniel Gonçalves

Proceedings of INTERACT 2011 - 13th IFIP TC13 Conference on Human-Computer Interaction. Lisboa, Portugal, September, 2011

[ pdf ]

Computer-Assisted Rehabilitation: Towards Effective Evaluation

Hugo Nicolau, Tiago Guerreiro, Rita Pereira, Daniel Gonçalves, Joaquim Jorge

International Journal of Cognitive Performance Support, October, 2011

[ pdf ]

2010

Towards Accessible Touch Interfaces

Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves

ASSETS 2010 - Proceedings of the 12th International ACM SIGACCESS Conference on Computers and Accessibility. Orlando, Florida, USA, October, 2010

[ pdf ]

Assessing mobile touch screen interfaces for tetraplegics

Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves

Mobile HCI 2010 - Proceedings of the 12th International Conference on Human-Computer Interaction with Mobile Devices and Services, Lisboa, Portugal, 09/2010. Lisboa, Portugal, September, 2010

[ pdf ]

Identifying the individual ingredients for an (in)successful non-visual mobile experience

Tiago Guerreiro, Joaquim Jorge, Daniel Gonçalves

ECCE 2010 - Proceedings of the European Conference on Cognitive Ergonomics, ACM DL, Delft,Netherlands, August, 2010

[ pdf ]

Proficient blind users and mobile text-entry

Hugo Nicolau, Tiago Guerreiro, Daniel Gonçalves, Joaquim Jorge

ECCE 2010 - Proceedings of the European Conference on Cognitive Ergonomics, ACM DL. Delft,Netherlands, August, 2010

[ pdf ]

A Narrative-Based Alternative to Tagging

Nuno Tomas, Tiago Guerreiro, Daniel Gonçalves

Hypertext 2010 - Proceedings of the 21st ACM Conference on Hypertext and Hypermedia. Toronto, Canada, June, 2010

[ pdf ]

SmarterPhone: Supporting meeting in a mobile context

Humberto Glória, Tiago Guerreiro, Daniel Gonçalves

NordiCHI 2010 - Proceedings of the 6th Nordic Conference on Human-Computer Interaction. Reykjavik, Iceland, October, 2010

[ pdf ]

Laying the Groundwork for Assisted Rehabilitation

Rita Pereira, Tiago Guerreiro, Hugo Nicolau, Joaquim Jorge, Daniel Gonçalves

ECCE 2010 - Proceedings of the European Conference on Cognitive Ergonomics, ACM DL. Delft, Netherlands, August, 2010

[ pdf ]

2009

Assessing Electromyographic Interfaces

Tiago Guerreiro, Joaquim Jorge

Journal of Virtual Reality and Broadcasting, Vol. 5 (12), January, 2009

[ pdf ]

NavTap: a Long Term Study with Excluded Blind Users

Tiago Guerreiro, Hugo Nicolau, Daniel Gonçalves, Joaquim Jorge

ASSETS 2009 - Eleventh International ACM SIGACCESS Conference on Computers and Accessibility. Pittsburgh, USA, October, 2009

[ pdf ] [ jose luis encarnação award ]

Mnemonical Body Shortcuts for Interacting with Mobile Devices

Tiago Guerreiro, Ricardo Gamboa, Joaquim Jorge

Springer Lecture Notes in Computer Science, Gesture-Based Human-Computer Interaction and Simulation, LNAI 5085, ISBN 978-3-540-92864-5, (Eds.) Miguel Sales Dias, Sylvie Gibet and Marcelo Wander, January, 2009

[ pdf ]

Designing Guides for Blind People

Hugo Nicolau, Tiago Guerreiro, Joaquim Jorge

DSAI 2009 - International Conference on Software Development for Enhancing Accessibility and Fighting Info-exclusion. Porto Salvo, Portugal, June, 2009

[ pdf ]

An Haptic based Immersive Environment for Shape Analysis and Modeling

Bruno Araújo, Tiago Guerreiro, Manuel João Fonseca, et al.

Journal of Real-Time Image Processing, ISSN\: 1861-8200, Springer. Special Issue on Improving Display and Rendering Technology for Virtual Environments. Eds. João António Madeiras Pereira and Pedro Santos, October, 2009

[ pdf ]

This Just In! Your Life in the Newspaper

Bruno Antunes, Tiago Guerreiro, Daniel Gonçalves

Interact 2009 - Springer Lecture Notes on Computer Science, 12th IFIP TC13 Conference in Human-Computer Interaction. Uppsala, Sweden, August, 2009

[ pdf ]

Storytags: Once Upon a Time, There Was a Photo

Nuno Tomas, Tiago Guerreiro, Joaquim Jorge

ACM CHI 2009 - Extended Abstracts of the ACM Conference on Human Factors in Computing Systems. Boston, MA, USA, April, 2009

[ pdf ]

Blobby: How to Guide a Blind Person

Hugo Nicolau, Tiago Guerreiro, Joaquim Jorge

ACM CHI 2009 - Extended Abstracts of the ACM Conference on Human Factors in Computing Systems. Boston, MA, USA, April, 2009

[ pdf ]

2008

NavTap and BrailleTap: Non-Visual Texting Interfaces

Tiago Guerreiro, Paulo Lagoá, Pedro Santana, Daniel Gonçalves, Joaquim Jorge

RESNA 2008 - Rehabilitation Engineering and Assistive Technology Society of North America Conference. Arlington, Virginia, USA, June, 2008

[ pdf ]

RealFind: Managing Personal Items in the Physical World

Leonel Câmara, Tiago Guerreiro, Daniel Gonçalves

ACM CHI 2008 - Extended Abstracts of the ACM Conference on Human Factors in Computing Systems. Florence, Italy, April, 2008

[ pdf ]

Mnemonical Body Shortcuts: Improving Mobile Interaction

Tiago Guerreiro, Ricardo Gamboa, Joaquim Jorge

ECCE 2008 - European Conference on Cognitive Ergonomics, ACM DL. Madeira, Portugal, September, 2008

[ pdf ]

From Tapping to Touching: Making touch screens accessible to blind users

Tiago Guerreiro, Hugo Nicolau, Paulo Lagoá, Daniel Gonçalves, Joaquim Jorge

IEEE Multimedia, vol. 15, no. 4, pp. 48-50, Oct-Dec, December, 2008

[ pdf ]

Mobile Text-Entry Models for People with Disabilities

Tiago Guerreiro, Paulo Lagoá, Hugo Nicolau, Pedro Santana, Joaquim Jorge

ECCE 2008 - Proceedings of the 15th European Conference on Cognitive Ergonomics. Funchal, Madeira, Portugal, September, 2008

[ pdf ]

2006

EMG as a Daily Wearable Interface

Tiago Guerreiro, Joaquim Jorge

GRAPP 2006: Proceedings of the First International Conference on Computer Graphics Theory and Applications Conference on Computer Science Education. Setúbal, Portugal, February, 2006

[ pdf ]