Archive for year 2010

thesis cover image of a smart computer

Combining Concepts and Language Models for Information Access

0
1 year ago
by in ,

Since the mid­dle of last cen­tury, infor­ma­tion retrieval has gained an increas­ing inter­est. Since its incep­tion, much research has been devoted to find­ing opti­mal ways of rep­re­sent­ing both doc­u­ments and queries, as well as improv­ing ways of match­ing one with the other. In cases where doc­u­ment anno­ta­tions or explicit seman­tics More >

linking open data cloud datasets full

Archieven Linken met Semantische Zoekmachines

0
1 year ago
by in ,

In toen­e­mende mate wor­den grootschalige archieven toe­ganke­lijk gemaakt voor een breed pub­liek. Promi­nente voor­beelden wor­den gegeven door de archieven van lan­delijke dag­bladen, nationale archieven, over­hei­d­sarchieven, archieven onder beheer van de Konin­klijke Bib­lio­theek, tele­visiearchieven zoals beheerd door het Nation­aal Insti­tuut voor Beeld en Geluid en, meer alge­meen, door archieven van erfgoedinstellingen. More >

Wikipedia

Supervised query modeling using Wikipedia

0
1 year ago
by in ,

In a web retrieval set­ting, there is a clear need for pre­ci­sion enhanc­ing meth­ods. For exam­ple, the query “the secret gar­den” (a novel that has been adapted into movies and musi­cals) is a query that is eas­ily led astray because of the gen­er­al­ity of the indi­vid­ual query terms. While some More >

Traditional Library Card Catalog

Conceptual language models for domain-specific retrieval

0
1 year ago
by in ,

Over the years, var­i­ous meta-languages have been used to man­u­ally enrich doc­u­ments with con­cep­tual knowl­edge of some kind. Exam­ples include key­word assign­ment to cita­tions or, more recently, tags to web­sites. In this paper we pro­pose gen­er­a­tive con­cept mod­els as an exten­sion to query mod­el­ing within the lan­guage mod­el­ing frame­work, More >

semantic network of drugs

Entity Search: Building Bridges between Two Worlds

0
2 years ago
by in ,

We have come to depend on tech­no­log­i­cal resources to cre­ate order and find mean­ing in the ever-growing amount of online data. One fre­quently recur­ring type of query in web search are queries con­tain­ing named enti­ties (per­sons, orga­ni­za­tions, loca­tions, etc.): we orga­nize our envi­ron­ments around enti­ties that are mean­ing­ful to us. More >

escience graph

Enabling Data Transport between Web Services

0
2 years ago
by in ,

Despite numer­ous ben­e­fits, many Web Ser­vices (WS) face prob­lems with respect to data trans­port, either because SOAP doesn’t offer a scal­able way of trans­port­ing large data-sets or because orches­tra­tion work­flows (WF) don’t move data around effi­ciently. In this paper we address both prob­lems with the devel­op­ment of the Prox­yWS. More >

TREC

Heuristic Ranking and Diversification of Web Documents

0
2 years ago
by in ,

We describe the par­tic­i­pa­tion of the Uni­ver­sity of Amsterdam’s Intel­li­gent Sys­tems Lab in the web track at TREC 2009. We par­tic­i­pated in the adhoc and diver­sity task. We find that spam is an impor­tant issue in the ad hoc task and that Wikipedia-based heuris­tic opti­miza­tion approaches help to boost More >

TREC

Topical Diversity and Relevance Feedback

0
2 years ago
by in ,

We describe the par­tic­i­pa­tion of the Uni­ver­sity of Amsterdam’s Intel­li­gent Sys­tems Lab in the rel­e­vance feed­back track at TREC 2009. Our main con­clu­sion for the rel­e­vance feed­back track is that a top­i­cal diver­sity approach pro­vides good feed­back doc­u­ments. Fur­ther, we find that our rel­e­vance feed­back algo­rithm seems to help More >

Go to Top