Research


I’m a PhD research fellow at the Department of Computer and Information Science at Norwegian University of Science in a wonderful city of Trondheim, Norway. I’m fortunate to have great people supervising me – Kjetil Nørvåg (supervisor) and Krisztian Balog (co-supervisor).

In the second half of 2016, I was visiting the group of Gao Cong at Nanyang Technological University in Singapore. Between May and July 2017, I’ll be working at Microsoft Research in Redmond under mentorship of Paul N. Bennett and John Krumm.


My research interest lies mainly in information retrieval with an overlap to visualization and interaction.

With the recent advancement of intelligent digital assistants (e.g., MS Cortana, Google Now) I started focusing on the problem of what information they should provide, when and how. These systems, usually used on mobile devices, are specific in several ways 1) the space for information is very limited, 2) they have access to rich contextual data, and 3) they should act proactively, on their own.

I’m profiling entities such as locations, persons or companies for display on condensed information cards. Using user’s context, I’m predicting which information (s)he needs at the moment or in near future so that it can be proactively retrieved before the user even starts typing a query (zero-query IR).

Publications

Towards Building a Knowledge Base of Monetary Transactions from a News Collection
J. Rybak Benetka, K. Balog, and K. Nørvåg.
In: ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL ’17), June 2017.

Anticipating Information Needs Based on Check-in Activity
J. Rybak Benetka, K. Balog, and K. Nørvåg.
In: International Conference on Web Search and Data Mining (WSDM ’17), February 2017.
pdf / bib / resources

IR Game: How well do you know information retrieval papers?
J. Rybak, K. Balog, and K. Nørvåg.
In: International Workshop on Gamification for Information Retrieval (GamifIR ’15), March 2015.
pdf / bib

ExperTime: Tracking Expertise over Time
J. Rybak, K. Balog, and K. Nørvåg.
In: International ACM SIGIR conference on Research and development in Information Retrieval (SIGIR ’14), pages 1273-1274, July 2014.
pdf / bib

Temporal Expertise Profiling
J. Rybak, K. Balog, and K. Nørvåg.
In: European Conference on Information Retrieval (ECIR ’14), pages 540-546, April 2014.
pdf / bib / poster

Teaching

In the last couple of years I’ve been involved in the following courses:

My set of skills

For a detailed (and most up-to-date) description of my skills and experience check out my LinkedIn profile. To get a quick overview of what I know about, look at the bubbles below:
My skills