Not so random thoughts of an IR researcher involved in the massive open online learning movement ...

Search as Learning at CIKM 2018

In recent months, we spent a lot of time and effort to design and implement a well-functioning open-source collaborative search system called SearchX. I wrote about it here. Having done all the implementation work, now is the time to reap the benefits of the work, i.e. run... [Read More]

Collaborative search - an implementation story

Web search is generally seen as a solitary activity, as most mainstream technologies are designed for single-user search sessions. However, for a sufficiently complex task, search collaborations have shown to be beneficial. Existing systems In one of my projects, large-scale collaborations whilst searching (think tens or hundreds of potential... [Read More]

2 PhD positions

UPDATE: the positions are no longer available. In the NWO project Searchx: Integrating search and sensemaking into large-scale open online learning I have two fully-funded 4-year PhD positions at the Delft University of Technology. Application deadline: June 15, 2018 (the advert will remain accessible until the positions are filled). <h2... [Read More]


When I am not talking about information retrieval research/education, I usually talk about MOOCs in this blog. While IR and MOOCs seem pretty unrelated, they come together very well in the area of Search As Learning. Search though is not always necessary for MOOC research, there are plenty of other... [Read More]