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Retrieval effectiveness of written and spoken queries : an experimental evaluation

Du, Heather and Crestani, Fabio (2004) Retrieval effectiveness of written and spoken queries : an experimental evaluation. In: Flexible Query Answering Systems. Springer, Berlin, pp. 376-389. ISBN 9783540221609

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Abstract

With the fast growing speech technologies, the world is emerging to a new speech era. Speech recognition has now become a practical technology for real world applications. While some work has been done to facilitate retrieving information in speech format using textual queries, the characteristics of speech as a way to express an information need has not been extensively studied. If one compares written versus spoken queries, it is intuitive to think that users would issue longer spoken queries than written ones, due to the ease of speech. Is this in fact the case in reality? Also, if this is the case, would longer spoken queries be more effective in helping retrieving relevant document than written ones? This paper presents some new findings derived from an experimental study to test these intuitions.