Voice-based Information Retrieval
— how far are we from the text-based information retrieval?
Lin-shan Lee
National Taiwan University
Taipei, Taiwan, ROC
By voice-based information retrieval, we refer to those information retrieval tasks in which either the queries or the documents to be retrieved, or both of them, are in form of voice. With the rapid increase of multimedia content over the Internet, which very often carries speech as the core information, the situation that the documents to be retrieved is in form of speech is getting more and more important. With the widely used hand-held devices, for which entering query terms is relatively difficult, accepting queries in voice form also becomes highly desired. In this talk the present state of voice-based information retrieval is briefly discussed with respect to its text-based counterpart, which has been extremely successful today. Some background information will be reviewed and some directions of recent research work will be mentioned.