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• W2056346282 abstract "Keyword search, in the context of low resource languages, has emerged as a key area of research. The dominant approach in keyword search is to use Automatic Speech Recognition (ASR) as a front end to produce a representation of audio that can be indexed. The biggest drawback of this approach lies in its the inability to deal with out-of-vocabulary words and query terms that are not in the ASR system output. In this paper we present an empirical study evaluating various approaches based on using confusion models as query expansion techniques to address this problem. We present results across four languages using a range of confusion models which lead to significant improvements in keyword search performance as measured by the Maximum Term Weighted Value (MTWV) metric." @default.
• W2056346282 created "2016-06-24" @default.
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• W2056346282 date "2013-12-01" @default.
• W2056346282 modified "2023-09-25" @default.
• W2056346282 title "An empirical study of confusion modeling in keyword search for low resource languages" @default.
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• W2056346282 doi "https://doi.org/10.1109/asru.2013.6707774" @default.
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