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Evaluating Speech-Driven IR in the NTCIR-3 Web Retrieval Task (2003)
| Venue: | In Proceedings of the 3rd NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering |
| Citations: | 1 - 0 self |
BibTeX
@INPROCEEDINGS{Fujii03evaluatingspeech-driven,
author = {Atsushi Fujii and Katunobu Itou},
title = {Evaluating Speech-Driven IR in the NTCIR-3 Web Retrieval Task},
booktitle = {In Proceedings of the 3rd NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering},
year = {2003}
}
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Abstract
Speech recognition has of late become a practical technology for real world applications. For the purpose of research and development in speech-driven retrieval, which facilitates retrieving information with spoken queries, we organized the speech-driven retrieval subtask in the NTCIR-3 Web retrieval task. Search topics for the Web retrieval main task were dictated by ten speakers and recorded as collections of spoken queries. We used those queries to evaluate the performance of our speech-driven retrieval system, where speech recognition and text retrieval modules were integrated. The text retrieval module, which is based on a probabilistic model, indexed only textual contents in documents (Web pages), but did not use HTML tags and hyperlink information in documents. Experimental results showed that a) the use of target documents for language modeling and b) enhancement of the vocabulary size in speech recognition were effective to improve the system performance.
Keyphrases
ntcir-3 web retrieval task speech recognition speech-driven ir spoken query text retrieval module textual content late become html tag search topic target document system performance vocabulary size speech-driven retrieval web retrieval main task ten speaker practical technology probabilistic model speech-driven retrieval system language modeling experimental result web page real world application speech-driven retrieval subtask
