Yannick de Kercadio

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In this paper we report on our TREC-8 SDR system, which combines an adapted version of the LIMSI 1998 Hub-4E transcription system for speech recognition with an IR system based on the Okapi term weighting function. Experimental results are given in terms of word error rate and average precision for both the SDR’98 and SDR’99 data sets. In addition to the(More)
In this paper we describe the LIMSI Spoken Document Retrieval system used in the TREC-9 evaluation. This system combines an adapted version of the LIMSI 1999 Hub-4E transcription system for speech recognition with text-based IR methods. Compared with the LIMSI TREC-8 system, this year’s system is able to index the audio data without knowledge of the story(More)
In this paper we report on recent research on transcribing and indexing broadcast news data for information retrieval purposes. The system described here combines an adapted version of the LIMSI 1998 Hub-4E transcription system for speech recognition with textbased IR methods. Experimental results are reported in terms of recognition word error rate and(More)
This paper addresses recent progress in speaker-independent, large vocabulary, continuous speech recognition, which has opened up a wide range of near and mid-term applications. One rapidly expanding application area is the processing of broadcast audio for information access. At LIMSI, broadcast news transcription systems have been developed for English,(More)
The aim of the paper is to propose a new description of extraction in plain TAG. Contrary to Kroch 1987’s analysis, our description is based on the fact that the power of a relative clause to adjoin on a noun can be attached to the wh-word rather than to a verb. This analysis solves some problems of the previous analysis, notably by giving the right(More)
This paper presents an adaptation of the Earley algorithm (EARLEY, 1968) for parsing with lexicalized tree-adjoining grammars (LTAGs). This algorithm constructs the derivation tree following a top-down strategy and verifies the valid prefix property. Many earlier algorithm do not have both of this properties (ScHABES, 1994). The Earley-like algorithm(More)
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