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Web Derived Pronunciations for Spoken Term Detection Dogan Can ∗ Bo˘gaziçi University
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@MISC{Jansche_webderived,
author = {Martin Jansche and Google Inc and Michael Riley and Google Inc and Erica Cooper and Sanjeev Khudanpur and Murat Saraclar and Arnab Ghoshal and Bhuvana Ramabhadran and Abhinav Sethy and Morgan Ulinski and Christopher White},
title = {Web Derived Pronunciations for Spoken Term Detection Dogan Can ∗ Bo˘gaziçi University},
year = {}
}
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Abstract
Indexing and retrieval of speech content in various forms such as broadcast news, customer care data and on-line media has gained a lot of interest for a wide range of applications, from customer analytics to on-line media search. For most retrieval applications, the speech content is typically first converted to a lexical or phonetic representation using automatic speech recognition (ASR). The first step in searching through indexes built on these representations is the generation of pronunciations for named entities and foreign language query terms. This paper summarizes the results of the work conducted during the 2008 JHU Summer Workshop by the Multilingual Spoken Term Detection team, on mining the web for pronunciations and analyzing their impact on spoken term detection. We will first present methods to use the vast amount of pronunciation information available on the Web, in the form of IPA and ad-hoc transcriptions. We describe techniques for extracting candidate pronunciations from Web pages and associating them with orthographic words, filtering out poorly extracted pronunciations, normalizing IPA pronunciations to better conform to a common transcription standard, and generating phonemic representations from ad-hoc transcriptions. We then present an analysis of the effectiveness of using these pronunciations to represent Out-Of-Vocabulary (OOV) query terms on the performance of a spoken term detection (STD) system. We will provide comparisons of Web pronunciations against automated techniques for pronunciation generation as well as pronunciations generated by human experts. Our results Authors listed in alphabetical order
Keyphrases
web derived pronunciation spoken term detection speech content ad-hoc transcription query term jhu summer workshop alphabetical order present method automatic speech recognition candidate pronunciation foreign language query term pronunciation information phonetic representation vast amount first step on-line medium common transcription standard various form result author retrieval application ipa pronunciation broadcast news phonemic representation orthographic word human expert customer care data pronunciation generation web pronunciation extracted pronunciation customer analytics on-line medium search wide range web page multilingual spoken term detection team
