Publications
Oortmerssen G. van, Raaijmakers S., Sappelli M., Boertjes E., Verberne S., Walasek N. & Kraaij W. (2018), Analyzing cancer forum discussions with text mining. In: Riano D., Peleg M., Lenz R., Reichert M., Denecke K., Deng Y., Declerck T., Harmelen F. van (red.) Proceedings of the International Joint Workshop KR4HC - ProHealth 2017 (in conjunction with AIME 2017).. 127-130.
2016
Saskia Koldijk, Wessel Kraaij, and A. Mark Neerincx. Deriving Requirements for Pervasive Well-Being Technology From Work Stress and Intervention Theory: Framework and Case Study. JMIR Mhealth Uhealth, 4(3):e79, July 2016. Keyword(s): psychological stress, professional burn-out, behavioral symptoms, self-management, health technology, early medical intervention. [bibtex-entry]
Saskia Koldijk, Mark A. Neerincx, and Wessel Kraaij. Detecting work stress in offices by combining unobtrusive sensors. IEEE Transactions on Affective Computing, electronic preprint, 2016. [bibtex-entry]
M. Sappelli, G. Pasi, S. Verberne, M. de Boer, and W. Kraaij. Assessing e-mail intent and tasks in e-mail messages. Information Sciences, 358-359:1 - 17, 2016. Keyword(s): E-mail intent, E-mail annotation scheme, Task-based e-mail categorization, Human annotation. [bibtex-entry]
Maya Sappelli, Suzan Verberne, and Wessel Kraaij. Adapting the Interactive Activation Model for Context Recognition and Identification. ACM Trans. Interact. Intell. Syst., 6(3):22:1-22:30, September 2016. Keyword(s): Context recognition, algorithm, computer interaction, context identification, interactive activation model, network. [bibtex-entry]
Maya Sappelli, Suzan Verberne, and Wessel Kraaij. Evaluation of context-aware recommendation systems for information re-finding. Journal of the Association for Information Science and Technology, pp n/a-n/a, 2016. [bibtex-entry]
Suzan Verberne, Maya Sappelli, Djoerd Hiemstra, and Wessel Kraaij. Evaluation and analysis of term scoring methods for term extraction. Information Retrieval Journal, 19(5):510-545, 2016. [bibtex-entry]
Maaike de Boer, Klamer Schutte, and Wessel Kraaij. Knowledge based query expansion in complex multimedia event detection. Multimedia Tools and Applications, 75:9025-9043, 2016. [bibtex-entry]
Maaike H.T. de Boer, Klamer Schutte, Hao Zhang, Yi-Lie Lu, Chong-Wah Ngo, and Wessel Kraaij. Blind late fusion in multimedia event retrieval. International journal of Multimedia Information Retrieval, 5:203-217, 2016. [bibtex-entry]
George Awad, Jonathan Fiscus, Martial Michel, David Joy, Wessel Kraaij, Alan F. Smeaton, Georges Quénot, Maria Eskevich, Robin Aly, Gareth J. F. Jones, Roeland Ordelman, Benoit Huet, and Martha Larson. TRECVID 2016: Evaluating Video Search, Video Event Detection, Localization, and Hyperlinking. In Proceedings of TRECVID 2016, 2016. NIST, USA. Keyword(s): TRECVid, Video Retrieval, Multimedia Retrieval, IR Evaluation. [bibtex-entry]
2015
Suzan Verberne, Maya Sappelli, Kalervo Järvelin, and Wessel Kraaij. User Simulations for Interactive Search: Evaluating Personalized Query Suggestion. In Allan Hanbury, Gabriella Kazai, Andreas Rauber, and Norbert Fuhr, editors, Advances in Information Retrieval, volume 9022 of Lecture Notes in Computer Science, pages 678-690. Springer International Publishing, 2015. Keyword(s): interactive search, academic search, user simulations, user interaction, query suggestion. [bibtex-entry]
Maaike de Boer, Paul Brandt, Maya Sappelli, Laura Daniele, Klamer Schutte, and Wessel Kraaij. Query Interpretation - an Application of Semiotics in Image Retrieval. International Journal On Advances in Software, 8(3):435-449, 2015. [bibtex-entry]
Maaike de Boer, Klamer Schutte, and Wessel Kraaij. Knowledge based query expansion in complex multimedia event detection. Multimedia Tools and Applications, pp 1-19, 2015. Keyword(s): Video event classification, Information retrieval, Knowledge bases, Zero-shot retrieval, Semantic analysis. [bibtex-entry]
Marina Ruiter en Peter Desain en Jop van Heesch en Joanneke van Hengel en Wessel Kraaij en Monique Lindhout en Mia Verschaeve. Afasie Gespreksboek, van papier naar app.. Stem-, Spraak- en Taalpathologie, 20(0), 2015. [bibtex-entry]
S. Koldijk, J. Bernard, T. Ruppert, J. Kohlhammer, M.A. Neerincx, and W. Kraaij. Visual Analytics of Work Behavior Data - Insights on Individual Differences. In Proceedings of EuroVis 2015, 2015.. [bibtex-entry]
C. Ngo, Y. Lu, H. Zhang, M. de Boer, K. Schutte, and W. Kraaij. VIREO-TNO at TRECVID 2015: Multimedia Event Detection. In Proceedings of TRECVID 2015, 2015. NIST, USA. Keyword(s): TRECVid, Video Retrieval, Multimedia Retrieval, IR Evaluation. [bibtex-entry]
Paul Over, Jonathan Fiscus, David Joy, Martial Michel, George Awad, Wessel Kraaij, Alan F. Smeaton, Georges Quénot, and Roeland Ordelman. TRECVID 2015 -- An Overview of the Goals, Tasks, Data, Evaluation Mechanisms and Metrics. In Proceedings of TRECVID 2015, 2015. NIST, USA. Keyword(s): TRECVid, Video Retrieval, Multimedia Retrieval, IR Evaluation. [bibtex-entry]
Presentations
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Other
Media
[2017] persoonlijke digitale gezondheidszorg ontwikkelt zich in rap tempo TNO TIME
[2017] Betere gezondheid door big data , CBS Corporate [Dutch]
[2017] Door Data Science het lerend vermogen van de gezondheidszorg versnellen using data-science to enhance learning ability in the healthcare system TNO TIME
[2017] https://www.bnr.nl/radio/beter/10319104/27-februari-datascience-voor-gezondheid about sharing health data [Dutch]
[2015] Visie van …. interview-io-magazine-december-2015 about the importance of self governance for health data management [2015, Dutch].
[2015] Na 150 likes kent Facebook je beter dan je beste vriend [Volkskrant]
[2014] Kunstmatig, maar niet intelligent – Hoe slim zijn Siri, Cortana en Google Now? [Tweakers.net]
[2013] Wie ben ik? TNO ging op zoek in mijn 32.272 mails Volkskrant journalist Bard van de Weijer
[2011] Interview in verband met Safer Internet day [Radboud Nieuws, Dutch]
[2009] Nijmeegse hoogleraar onderzoekt netwerksites [Computable 2-7-2009, Dutch]
[2009] Misbruik van persoonlijke zoekhistorie op internet is te voorkomen [Wetenschapsagenda RU 19-6-2009, Dutch]
I am a full Professor of ‘Applied Data Analytics’ at Leiden University and a Principal Scientist at TNO (The Netherlands Organisation for applied scientic research).
My research theme is ‘making sense of unstructured data’. The two key elements here are unstructured data and sense making, representing the human element. This research area combines aspects from human machine interaction, design of algorithms, signal processing, semantic representations, reasoning, learning and abstraction.
I have worked in several domains: natural language and speech interfaces, dialogue systems, information retrieval in several domains and modalities.
Personal website: http://liacs.leidenuniv.nl/~kraaijw/