Publications

A list of my scientific publications. You can use the menu above to filter on a specific type or use the term cloud to look for publications on a certain topic. Alternatively, you can use the search box if you know what you’re looking for. A more succinct version of this list can be found on the ILPS website.

Twitter aspects

Identifying Entity Aspects in Microblog Posts

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2 weeks ago
by in , ,

To appear

Online rep­u­ta­tion man­age­ment is about mon­i­tor­ing and han­dling the pub­lic image of enti­ties (such as com­pa­nies) on the Web. An impor­tant task in this area is iden­ti­fy­ing aspects of the entity of inter­est (such as prod­ucts, ser­vices, com­peti­tors, key peo­ple, etc.) given a stream of microblog posts refer­ring More >

Twitter aspects

A Corpus for Entity Profiling in Microblog Posts

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1 month ago
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Microblogs have become an invalu­able source of infor­ma­tion for the pur­pose of online rep­u­ta­tion man­age­ment. An emerg­ing prob­lem in the field of online rep­u­ta­tion man­age­ment con­sists of iden­ti­fy­ing the key aspects of an entity com­mented in microblog posts. Streams of microblogs are of great value because of their direct and More >

linking open data datasets

Zoekmachines van de toekomst

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3 months ago
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Er bestaat enige dis­cussie over wat de logis­che opvol­ger zal zijn van web 2.0, waarin user-generated con­tent, het delen van infor­matie en inter­op­er­abiliteit cen­traal ston­den. Hoewel meer ideeën de ronde doen, is er veel steun voor het idee web 3.0 gelijk te stellen aan het seman­tis­che web. Het sturende idee More >

Research on Twitter

Adding Semantics to Microblog Posts

1
3 months ago
by in ,

Microblogs have become an impor­tant source of infor­ma­tion for mar­ket­ing, intel­li­gence, and rep­u­ta­tion man­age­ment pur­poses. Streams of microblogs are of great value because of their direct and real-time nature. Deter­min­ing what an indi­vid­ual microblog post is about, how­ever, can be non-trivial because of cre­ative lan­guage usage, the highly con­tex­tu­al­ized and More >

TREC

The University of Amsterdam at the TREC 2011 Session Track

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3 months ago
by in ,

We describe the par­tic­i­pa­tion of the Uni­ver­sity of Amsterdam’s ILPS group in the Ses­sion track at TREC 2011.

The stream of inter­ac­tions cre­ated by a user engag­ing with a search sys­tem con­tains a wealth of infor­ma­tion. For retrieval pur­poses, pre­vi­ous inter­ac­tions can help inform us about a user’s cur­rent More >

P30 difference plot

Team COMMIT at TREC 2011

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3 months ago
by in ,

We describe the par­tic­i­pa­tion of Team COMMIT in this year’s Microblog and Entity track.

In our par­tic­i­pa­tion in the Microblog track, we used a feature-based approach. Specif­i­cally, we pur­sued a pre­ci­sion ori­ented recency-aware retrieval approach for tweets. Amongst oth­ers we used var­i­ous types of exter­nal data. In par­tic­u­lar, we More >

Plot of a query-specific burst

Adaptive Temporal Query Modeling

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6 months ago
by in ,

We present an approach to query mod­el­ing that uses the tem­po­ral dis­tri­b­u­tion of doc­u­ments in an ini­tially retrieved set of doc­u­ments. Such dis­tri­b­u­tions tend to exhibit bursts, espe­cially in news related doc­u­ment col­lec­tions. We hypoth­e­size that doc­u­ments in those bursts are more likely to be rel­e­vant than oth­ers. Pred­i­cated on More >

social media icons

A Framework for Unsupervised Spam Detection in Social Networking Sites

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6 months ago
by in ,

Social net­work­ing sites offer users the option to sub­mit user spam reports for a given mes­sage, indi­cat­ing this mes­sage is inap­pro­pri­ate. In this paper we present a frame­work that uses these user spam reports for spam detec­tion. The frame­work is based on the HITS web link analy­sis frame­work and More >

onszelf voorbij

Wij-woorden op websites: Zoekmachines voor geesteswetenschappers

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8 months ago
by in ,

Vol­gens velen in onze samen­lev­ing zijn we onszelf in het pro­ces van inte­gratie en multi-culti finaal voor­bi­jgelopen. Sinds tien jaar is de toon van het debat in de media en op inter­net vol­sla­gen veran­derd. De regering verkondigt dat de mul­ti­cul­turele samen­lev­ing is mis­lukt en dus wordt afgeschaft. Etnis­che achter­stands­groepen moeten More >

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