Paper: Assessing The Retrieval Effectiveness Of A Speech :Retrieval System By Simulating Recognition Errors

ACL ID H94-1073
Title Assessing The Retrieval Effectiveness Of A Speech :Retrieval System By Simulating Recognition Errors
Venue Human Language Technologies
Session Main Conference
Year 1994
Authors

We show how the recognition performance of a speech recog- nition component in a speech retrieval system affects the retrieval effectiveness. A speech retrieval system facilitates content-based retrieval of speech documents, i.e. audio recordings containing spoken text. The speech retrieval pro- cess receives queries from users and for every query it ranks the speech documents in decreasing order of their probabil- ities that they are relevant to the query. The speech recog- nition component is an important part of a speech retrieval system, since it detects the occurrences of indexing features in the documents. Because the recognition of indexing fea- tures in continuous speech is error prone, the question arises how much an error prone recognition of indexing features af- fects the retri...