I am a distinguished scientist and assistant director of MSR AI. My research is at the intersection of information retrieval and human-computer interaction. I am interested in algorithms and interfaces for improved information retrieval, as well as general issues in human-computer interaction.

I have been at Microsoft Research since July 1997. My current research focuses on gaze-enhanced interaction, the temporal dynamics of information systems, user modeling and personalization, novel interfaces for interactive retrieval, and search evaluation. Previous research studied a variety of information access and management challenges, including personal information management, desktop search, question answering, text categorization, collaborative filtering, interfaces for improving search and navigation, and user/task modeling. I have worked closely with several Microsoft groups (Bing, Windows Desktop Search, SharePoint Portal Server and Office Online Help) on search-related innovations.

Prior to coming to Microsoft, I co-developed a statistical method for concept-based retrieval known as Latent Semantic Indexing. You can find pointers to this work on the Bellcore (now Telcordia) LSI page.






  • Information Week article by Stuart Johnson on our contributions to SharePoint Portal Server. Microsoft Research who benefits?  Information Week, March 21, 2001, 69-74.
  • Forbes article by William Baldwin on our anti-Spam work. Spam killers. Forbes, Sept 21, 1998, 254-255.


  • S.T. Dumais (2012). Putting search into context and context into search. SIGIR 2012, Industry Keynote.
  • S.T. Dumais (2012). Data-driven approaches to improving information access. Festschrift for Richard M. Shiffrin.
  • S.T. Dumais (2012). Temporal dynamics and information retrieval. SIAM-SDM 2012, Keynote Talk.
  • S.T. Dumais (2011). Temporal dynamics and information systems. (Slides.) iConference 2011, Keynote Talk.
  • S.T. Dumais (2010). Temporal dynamics and information retrieval. CIKM 2010, Keynote Talk.
  • S.T. Dumais (2010). Understanding and supporting people in dynamic information environments. (Slides.) ECDL 2010, Keynote Talk.
  • S.T. Dumais (2010). Stuff I’ve Seen: Retrospective and prospective. SIGIR 2010 Desktop Search Workshop, Keynote Talk.
  • S.T. Dumais (2009). An interdisciplinary perspective on information retrieval. (Slides.) SIGIR 2009, Salton Award Lecture.
  • S.T. Dumais (2009). Evaluating IR in situ. (Slides.) SIGIR 2009 Workshop on The Future of IR Evaluation, Invited Talk.
  • S.T. Dumais (2009). Thinking outside the (search) box. (Slides.) UMAP 2009, Keynote Talk.
  • S. Dumais (2008). Thinking outside the (search) box. (Slides.) HCIR 2008 Keynote Talk.
  • S. Dumais (2008). Supporting searchers in searching. (Slides.) ACL Keynote Talk.
  • S. Dumais (2007). The Person in Personal. (Slides.) WWW2007 Panel: Searching Personal Content.
  • L. Streeter, D. Laham, S. Dumais, E. Z. Rothkopf (2004). Cherches le quadrant Pasteur! A symposium in honor of Tom Landauer. In Experimental Cognitive Psychology and its Applications: Triple Festschrift in Honor of Lyle Bourne, Walter Kintsch, Thomas Landauer.
  • S. Dumais (2002). Web experiments and test collections: Are they meaningful? WWW 2002 panel.
  • S. T. Dumais (2001). When do you want to go ‘where everybody knows your name’?: A framework for personalization. Invited talk at DELOS/NSF Workshop on Personalization and Recommender Systems in Digital Libraries. June 18-20, 2001, Dublin. Powerpoint slides.
  • S. T. Dumais, E. Cutrell and H. Chen (2000). Classified displays of web search results. Invited presentation at ASIS&T SIG/CR Classification Research Workshop, Nov 12, 2000, pp.87-90.
  • S. T. Dumais (1999). Beyond content-based retrieval: Modeling domains, users and interaction. Keynote address at IEEE: Advances in Digital Libraries’99, May 19-21, 1999. Powerpoint slides.
  • S. T. Dumais (1999). Talk at Library of Congress, Feb 8 1999. LOC Talk. (Powerpoint slides).
  • S. T. Dumais (1999). Statistical challenges for information retrieval. Tutorial at Uncertainty ’99, Jan 3-5, 1999.
  • S. T. Dumais (1997). Tightly coupling structure and search. (Powerpoint slides) SIGIR’97 Workshop on information reduction, July 27-31, 1997.
  • S. T. Dumais (1997). Data mining and the Web. (Powerpoint slides) Panel at Knowledge Discovery and Databases (KDD) , August 14-17, 1997.

Workshops and collaborations

  • Co-Organizer: Arthur M. Sackler Colloquia: Drawing causal inference from big data. Washington DC, Mar 26-27, 2015.
  • Co-Chair (w/ O. Kurland). WSDM 2014 Doctoral Consortium. New York City, Feb 24, 2014.
  • Co-Organizer: Time-aware information access (#TAIA2013). Workshop at SIGIR 2013. Dublin, Aug 1, 2013.
  • Co-Organizer: NII Shonan Seminar on Whole-session evaluation of interactive retrieval systems. Shonan, Japan. Oct 9-13, 2012.
  • Co-Organizer: Time-aware information access (#TAIA2012). Workshop at SIGIR 2012. Portland, Aug 16, 2012.
  • Co-Chair (w/ B. Davison). WSDM 2012 Doctoral Consortium. Seattle, Feb 8, 2012.
  • Co-Chair (w/ A. Trotman). SIGIR 2008 Doctoral Consortium. Singapore, July 20, 2008.
  • Co-Organizer: NSF Workshop on Personal Information Management. Seattle WA, Jan 27-29, 2005.
  • Co-Organizer: SIGIR Workshop on Implicit Measures of User Interests and Preferences. Toronto CA, Aug 1, 2003.
  • Collaborator: “Collaborative Information Retrieval”, a multidisciplinary research project to understand the social aspects of information retrieval in a variety of workplace settings. In collaboration with Raya Fidel and Harry Bruce (U Washington iSchool), Steve Poltrock (Boeing), A.M. Petersen (Riso National Laboratory), and Jonathan Grudin (Microsoft Research).
  • Collaborator: “Keeping Found Things Found”, a research project to understand the ways in which people manage information for subsequent re-access. In collaboration with William Jones, Harry Bruce and Mike Eisenberg (U Washington iSchool).

Awards and activities