Posts tagged CLEF

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Conceptual language models for domain-specific retrieval

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1 year ago
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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 >

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A Semantic Perspective on Query Log Analysis

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2 years ago
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We present our views on the CLEF log file analy­sis task. We argue for a task def­i­n­i­tion that focuses on the seman­tic enrich­ment of query logs. In addi­tion, we dis­cuss how addi­tional infor­ma­tion about the con­text in which queries are being made could fur­ther our under­stand­ing of users’ infor­ma­tion More >

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Concept models for domain-specific search

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3 years ago
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We describe our par­tic­i­pa­tion in the 2008 CLEF Domain-specific track. We eval­u­ate blind rel­e­vance feed­back mod­els and con­cept mod­els on the CLEF domain-specific test col­lec­tion. Apply­ing rel­e­vance mod­el­ing tech­niques is found to have a pos­i­tive effect on the 2008 topic set, in terms of mean aver­age pre­ci­sion and More >

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The University of Amsterdam at the CLEF 2008 Domain Specific Track — Parsimonious Relevance and Concept Models

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3 years ago
by in ,

We describe our par­tic­i­pa­tion in the CLEF 2008 Domain Spe­cific track. The research ques­tions we address are three­fold: (i) what are the effects of esti­mat­ing and apply­ing rel­e­vance mod­els to the domain spe­cific col­lec­tion used at CLEF 2008, (ii) what are the results of par­si­mo­niz­ing these rel­e­vance mod­els, More >

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