A comparison of grapheme and phoneme-based units for Spanish spoken term detection
Speech Communication
The effect of language models on phonetic decoding for spoken term detection
SSCS '09 Proceedings of the third workshop on Searching spontaneous conversational speech
A novel Chinese mandarin speech indexing method based on confusion network using tone information
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Novel methods for query selection and query combination in query-by-example spoken term detection
Proceedings of the 2010 international workshop on Searching spontaneous conversational speech
Spoken Content Retrieval: A Survey of Techniques and Technologies
Foundations and Trends in Information Retrieval
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The support for typically out-of-vocabulary query terms such as names, acronyms, and foreign words is an important requirement of many speech indexing applications. However, to date many unrestricted vocabulary indexing systems have struggled to provide a balance between good detection rate and fast query speeds. This paper presents a fast and accurate unrestricted vocabulary speech indexing technique named Dynamic Match Lattice Spotting (DMLS). The proposed method augments the conventional lattice spotting technique with dynamic sequence matching, together with a number of other novel algorithmic enhancements, to obtain a system that is capable of searching hours of speech in seconds while maintaining excellent detection performance