Igor Matias 🧠🤖 (Computer Science, Health, AI)

Journal

Digital biomarkers for brain health: passive and continuous assessment from wearable sensors

Igor Matias1,2, Maximilian Haas2,3, Eric J. Daza4,5, Matthias Kliegel2, Katarzyna Wac1 1Quality of Life Technologies Lab, UNIGE,...

14 January, 2026

Journal

Model-Twin Randomization (MoTR) for Estimating the Recurring Individual Treatment Effect

Eric J. Daza1, Igor Matias2, Logan Schneiderl3 1Stats-of-1, Evidation, USA, 2University of Geneva, Geneva, Switzerland, 3Stanford Medicine,...

13 November, 2025

Research Talks

From wearables to warnables: Rethinking mental health monitoring at scale

Igor Matias1 (September 2025)1University of Geneva, Switzerland At Geneva Aging Series XIII, Morges, Switzerland, September 16-18, 2025.

18 September, 2025

General Public Talk

Quando o Corpo Fala Primeiro: Prever alterações cognitivas e emocionais com Inteligência Artificial e Tecnologia do Quotidiano

Igor Matias Talk at the closing event of the Iberian project "Horizontes Partilhados." At Guarda, Portugal. Image...

1 July, 2025

Research Talks

Show me no more! Forecasting affective state and cognition using ubiquitous wearable technology

Igor Matias Talk at the LIVES day 2025. At Lausanne, Switzerland.

3 June, 2025

General Public Talk

Inteligência Artificial e o Dia a Dia: No caminho para o pré‑diagnóstico da doença de Alzheimer

Igor Matias Talk at the Feira da Saúde e Social, 3ª edição. At Rapoula, Portugal.

24 May, 2025

Conference

You Are Not You When You Are Tired: The Effects of Ego Depletion on Stress Levels Reporting

Antoine Bellanger1, Igor Matias1,2, Allan Berrocal3, Katarzyna Wac1 , University of Geneva, Switzerland3School of Computer Science, University...

23 April, 2025

Workshop Organized

Pervasive Digital Health: The Road to Truly Personalized Healthcare

Igor Matias Workshop at the Hasso-Plattner Institute's Digital Health Innovation Forum 2025. In Potsdam, Germany --- Workshop...

27 March, 2025

Conference

Use of personal mobile technologies for peer-based assessment of stress: a systematic literature review

Antoine Bellanger1, Igor Matias1, 2, Katarzyna Wac1 , University of Geneva, Switzerland | Abstract: The use of...

19 March, 2025

Poster

Early detection of Alzheimers disease using digital biomarkers insights from the Providemus alz project

Igor Matias1,2, Matthias Kliegel2, Katarzyna Wac1, University of Geneva, Switzerland At Biomarkers of Aging Conference, Boston, MA,...

1 November, 2024

General Public Talk

TerapIA do futuro: o Psicólogo Omnipresente?

Igor Matias Talk at the X Ciclo de Saúde Mental do Fundão. At Fundão, Portugal.

26 October, 2024

Workshop Organized

Navigating Digital Health Technologies: From Data Collection to Analysis

Igor Matias Workshop at the International Society for Quality of Life Research Conference 2024. In Cologne, Germany...

13 October, 2024

Conference

Providemus alz: Ubiquitous screening of Preclinical Alzheimer’s Disease with consumer-grade Technologies

Igor Matias1, Matthias Kliegel2, Katarzyna Wac1 , University of Geneva, Switzerland | Abstract: This article introduces a...

5 October, 2024

Poster

Assessing Cognitive Performance fluctuations using passive continuous Wearable Data

Igor Matias1,2, Matthias Kliegel2, Katarzyna Wac1, University of Geneva, Switzerland At Geneva Aging Series XII, Morges, Switzerland,...

24 September, 2024

Media appearances

O investigador fundanense que tenta antecipar-se à Alzheimer

Igor Matias Interview with Jornal do Fundão (in Portuguese) In Portugal Interview (partially) at: https://www.jornaldofundao.pt/saude/o-investigador-fundanense-que-tenta-antecipar-se-a-alzheimer Full interview in...

21 August, 2024

Conference

Modelling Users for User Modelling: Dynamic Personas for Improved Personalisation in Digital Behaviour Change

Igor Matias1, Farhat -ul-Ain2, Darina Akhmetzyanova2, and Vladimir Tomberg2 1Quality of Life Technologies Lab, University of Geneva,...

28 June, 2024

Conference

Behaviour Models-Enriched User Personas for Digital Behaviour Change Interventions

Farhat -ul-Ain1, Darina Akhmetzyanova1, Igor Matias2, and Vladimir Tomberg1 1Tallinn University, Estonia 2Quality of Life Technologies Lab,...

26 June, 2024

Poster

Providemus alz: Paving the way towards a ubiquitous and passive screening of Alzheimer’s disease

Igor Matias1, Matthias Kliegel1, Katarzyna Wac1 1University of Geneva, Switzerland At Alzheimer's Disease International Conference 2024, Krakow,...

1 May, 2024

Media appearances

Detetar Alzheimer vinte anos antes dos primeiros sinais

Igor Matias Interview with SIC and SIC Notícias (in Portuguese) - Portugal's most-watched TV channel In Portugal...

23 March, 2024

General Public Talk

Spes Libertatis invited guest

Igor Matias Interview by the Mais Liberdade YouTube channel. Portugal.

27 February, 2024

General Public Talk

Coding for a Cure: How AI is and will be unraveling the mysteries of Onco‐Hematology

Igor Matias Talk as a Takeda speaker at the HemeXChange event hosted by Takeda Oncology. At Convento...

20 January, 2024

General Public Talk

Artificial Intelligence in the digital transition

Igor Matias Talk in Portuguese at the kick-off of the DIH 4 Global Automotive project. At Ceiia...

16 January, 2024

Media appearances

Inteligência artificial: “A moeda de duas faces”

Igor Matias Interview with Farmacêutico News (in Portuguese) At Porto, Portugal https://www.youtube.com/watch?v=oZG4oDmPjZg Full access (requires registration): https://farmaceuticonews.pt/entrevista/item/1642-inteligência-artificial-a-moeda-de-duas-faces.html

24 November, 2023

General Public Talk

Development of Artificial Intelligence around the world: potential and challenges

Igor Matias Porto, Portugal At XVI National Congress of the Portuguese Association of Hospital Pharmacists (https://www.apfh.pt/xvicongresso2023/). Image...

23 November, 2023

General Public Talk

Digital Health: Health Technology and Artificial Intelligence

Igor Matias Vitória, Espírito Santo, Brazil At B-TECH Congress - III Congress of Technological Research in Business...

23 November, 2023

General Public Talk

Development of Artificial Intelligence around the world: potential and challenges

Igor Matias Talk at the XVI National Congress of the Portuguese Association of Hospital Pharmacists. At Porto,...

23 November, 2023

Workshop Organized

Introduction to Technology-Reported Outcomes for QoL research

Igor Matias Workshop at the International Society for Quality of Life Research Conference 2023. In Calgary, Alberta,...

18 October, 2023

General Public Talk

O ChatGPT tomou de assalto a sociedade em quatro meses

Igor Matias Palestra aberta ao público (in Portuguese) At Instituto Politécnico da Guarda Recording: https://www.youtube.com/watch?v=RZ6JxdzMXak Image by...

11 May, 2023

Media appearances

O ChatGPT tomou de assalto a sociedade em quatro meses

Igor Matias Entrevista ao Jornal SOL, em Português. (Portuguese interview to the newspaper SOL) https://sol.sapo.pt/artigo/797517/igor-matias-o-chatgpt-tomou-de-assalto-a-sociedade-em-quatro-meses

21 April, 2023

Conference

Dejà vu: Recurrent Neural Networks for health wearables data forecast

Igor Matias1, and Katarzyna Wac1 1Quality of Life Technologies Lab, University of Geneva, Switzerland | Abstract: Wearable...

23 March, 2023

Research Talks

Data overdose: side effects and metabolism of big data in the 21st century

Igor Matias1 (February 2023)1University of Geneva, Switzerland In "AI and Big Data in Healthcare" session, The University of...

1 February, 2023

Conference

Behavioral Data Categorization for Transformers-based Models in Digital Health

Clauirton Siebra1, Igor Matias1, and Katarzyna Wac1 1Quality of Life Technologies Lab, University of Geneva, Switzerland |...

16 November, 2022

Poster

Physical Activity may affect Sleep unexpectedly. Results from small data.

Igor Matias1, Eric J. Daza2, Alexandre de Masi1, Katarzyna Wac1 1University of Geneva, Switzerland, 2Evidation, United States...

31 October, 2022

Poster

Providemus alz: Giving you the power to foresee Alzheimer’s disease effortlessly

Igor Matias1, Matthias Kliegel1, Katarzyna Wac1 1University of Geneva, Switzerland On Data Science Day, University of Geneva,...

15 September, 2022

Journal

What possibly affects nighttime heart rate? Conclusions from N-of-1 observational data

Igor Matias, Eric J. Daza, Katarzyna Wac | Abstract: BackgroundHeart rate (HR), especially at nighttime, is an...

25 August, 2022

Poster

Fighting Alzheimer’s Disease Effortlessly

Igor Matias1, Matthias Kliegel1, Katarzyna Wac1 1University of Geneva, Switzerland In CUSO Winter School, Champéry, Switzerland, January...

24 January, 2022

Research Talks

Technology: your body’s seismometer

Igor Matias1 (September 2021)1University of Geneva, Switzerland In UNIGE's Data Science Day round table "Beyond SDGs: measuring and...

25 August, 2021

Research Talks

Co-calibrating Short Term, Mixed-Methods Based Momentary Assessments for Physical and Psychological Outcomes with Long Term Quality of Life Outcomes in Older Adults: The coQoL Method

Vlad Manea1, Igor Matias2, Katarzyna Wac1,2 1University of Copenhagen, Denmark; 2University of Geneva, Switzerland On UNIGE's Data Science...

25 August, 2021

Research Talks

Co-calibrating Short Term, Mixed-Methods Based Momentary Assessments for Physical and Psychological Outcomes with Long Term Quality of Life Outcomes in Older Adults: An Evaluation of the coQoL Method

Vlad Manea1, Igor Matias2, Katarzyna Wac1,21University of Copenhagen, Denmark; 2University of Geneva, Switzerland Abstract: Inactivity, lack of...

5 July, 2021

Research Talks

“Know You (Self) Better”: N-of-1 Based Self-Examination Using Wearables And Self-Reported Behaviors For An Improved Well-Being

Igor Matias Abstract: N-of-1 randomized trials help better understand the effects of an intervention, e.g., behavioral changes...

20 April, 2021

Journal

Prediction of Atrial Fibrillation using artificial intelligence on Electrocardiograms: A systematic review

Igor Matias, Nuno Garcia, Sandeep Pirbhulal, Virginie Felizardo, Nuno Pombo, Henriques Zacarias, Miguel Sousa, Eftim Zdravevski |...

5 December, 2020

Thesis

ECG based Prediction Model for Cardiac-Related Diseases using Machine Learning Techniques

Igor Matias, Nuno Garcia, Miguel Sousa, Eftim Zdravevski | Abstract: This dissertation presents research on the construction...

23 July, 2020

Conference

Scaffolding students on connecting STEM and interaction design: Case study in Tallinn University Summer School

Igor Matias, Nuno Pombo, Nuno Garcia, David Lamas and Vladimir Tomberg | Abstract: Fusion multidisciplinary subjects in...

17 May, 2018

Conference

Towards a Fully Automated Bracelet for Health Emergency Solution

Igor Matias, Nuno Pombo and Nuno Garcia | Abstract: Activity and health monitoring bracelets are currently a popular consumer...

19 March, 2018