Information retrieval Archives - Page 3 of 6

Identifying Entity Aspects in Microblog Posts

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 to the…

Zoekmachines van de toekomst

12/02/2012 Blog Publications Publicity No Comments

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…

The University of Amsterdam at the TREC 2011 Session Track

25/01/2012 Publications Unrefereed No Comments

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 information…

Team COMMIT at TREC 2011

25/01/2012 Publications Unrefereed No Comments

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 examined…

Adaptive Temporal Query Modeling

23/11/2011 Conference Papers Publications No Comments

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…

Wij-woorden op websites: Zoekmachines voor geesteswetenschappers

01/09/2011 Books Publications No Comments

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…

Online Religious Studies

20/06/2011 Conference Papers Publications No Comments

Data transitions have revolutionized many scientific disciplines, starting with the exact sciences, then the life sciences, and now the social sciences and humanities are in the process of making the transition to becoming data intensive sciences, with descriptions through quantitative measurements. New analysis tools, and publicly accessible utterances, opinions, transactions…

Classifying Queries Submitted to a Vertical Search Engine

20/06/2011 Conference Papers Publications No Comments

We propose and motivate a scheme for classifying queries submitted to a people search engine. We specify a number of features for automatically classifying people queries into the proposed classes and examine the effectiveness of these features. Our main finding is that classification is feasible and that using information from…

Dir 2011: the eleventh Dutch-Belgian information retrieval workshop

20/05/2011 Publications Unrefereed No Comments

The 11th edition of the annual Dutch-Belgian Information Retrieval workshop (DIR 2011) took place on February 4 in Amsterdam. It was organized by the University of Amsterdam and the Centrum Wiskunde & Informatica. The focus of this year’s workshop was on interaction, with the goal of facilitating and increasing interaction,…

Mapping queries to the Linking Open Data cloud: A case study using DBpedia

02/04/2011 Journal Papers Publications No Comments

We introduce the task of mapping search engine queries to DBpedia, a major linking hub in the Linking Open Data cloud. We propose and compare various methods for addressing this task, using a mixture of information retrieval and machine learning techniques. Specifically, we present a supervised machine learning-based method to…

Edgar Meij

Tag: Information retrieval