The importance of prior probabilities for entry page search

An important class of searches on the world-wide-web has the goal to find an entry page (homepage) of an organisation. Entry page search is quite different from Ad Hoc search. Indeed a plain Ad Hoc system performs disappointingly. We explored three non-content features of web pages: page length, number of incoming links and URL form. Especially...

TNO at CLEF-2001: Comparing translation resources

This paper describes the official runs of TNO TPD for CLEF-2001. We participated in the monolingual, bilingual and multilingual tasks. The main contribution of this paper is a systematic comparison of three types of translation resources for bilingual retrieval based on query translation. We compared several techniques based on machine readable...

Translation resources, merging strategies, and relevance feedback for cross-language information retrieval

This paper describes the official runs of the Twenty-One group for the first CLEF workshop. The Twenty-One group participated in the monolingual, bilingual and multilingual tasks. The following new techniques are introduced in this paper. In the bilingual task we experimented with different methods to estimate translation probabilities. In the...

Video over IP: D1.3 upgrade audo content production for NCRV case

Het is mogelijk om een audio segmenterings- en custeringsmethode te implementeren als on-line stream.... filter

Comparing the effect of syntactic vs. statistical phrase indexing strategies for Dutch

In this paper we describe the results of experiments contrasting syntactic phrase indexing with statistical phrase indexing for Dutch texts. Our results showed that we at least need a compound split- ting algorithm for good quality retrieval for Dutch texts. If we then add either syntactic or statistical phrases, performance generally improves,...

Phoneme based spoken document retrieval

Since speech recognition technology has become more and more mature, retrieval of spoken documents has become a feasible task. We report about two cases, which aim at scalable and effective retrieval of broadcast recordings. The approach is based on a hybrid architecture, which combines the speed of off-line phoneme indexing and precision of...

Viewing stemming as recall enhancement

Previous research on stemming has shown both positive and negative effects on retrieval performance. This paper describes an experiment in which several linguistic and non-linguistic stemmers are evaluated on a Dutch test collection. Experiments especially focus on the measurement of Recall. Results show that linguistic stemming restricted to...