Our full paper has been accepted at CIKM2017: Hosein Azarbonyad, Mostafa Dehghani, Kaspar Beelen, Alexandra Arkut, Maarten Marx, and Jaap Kamps, “Words are Malleable: Computing Semantic Shifts in Political and Media Discourse” Here is a short summary of the paper: Words are always ‘under construction’, their meaning is unstable and malleable. Semantic fluctuations can […]
Our full paper got accepted at ECIR2017: Hosein Azarbonyad, Mostafa Dehghani, Tom Kenter, Maarten Marx, Jaap Kamps, and Maarten de Rijke, “Hierarchical Re-estimation of Topic Models for Measuring Topical Diversity”. Here is a short summary of this paper: Quantitative notions of topical diversity in text documents are useful in several contexts, e.g., to assess the […]
Here are the slides of my talk at the 15th Dutch-Belgian Information Retrieval Workshop (DIR2016) on November 25. Also here is a small description of the research. For more information see Power Analysis for Interleaving Experiments by Means of Offline Evaluation.
SEA is a series on meetups organized by ILPS. It happens in the last Friday of every month. During each meetup we have two speakers: one academic and one industry. The meetup is followed by drinks. Julia Kiseleva from ILPS will give the academic talk. The industry talk will be given by Jan-Willem van den Berg from […]
We won ICTIR2016 best paper award. This award is received for the paper entitled “On Horizontal and Vertical Separation in Hierarchical Text Classification”. This is a joint work by Mostafa Dehghani, Hosein Azarbonyad, Jaap Kamps, and Maarten Marx. The main aim of this research is to understand and validate the effect of the separation property on […]
Evaluation is key to building effective, efficient, and usable information retrieval (IR) systems as it enables their effectiveness to be quantified. For decades the primary approach to conduct IR evaluation was the Cranfield approach, that makes use of test collections, allowing systematic and repeatable evaluations to be carried out in a controlled manner. The Cranfield […]