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Recent years, the availability of public accessible structured resources like XML on the web has led to active developments of structural retrieval systems. With these systems, users will be able to query for information from structured resources on the web efficiently. When querying, it is obvious that usage of structural information in query increases the precision of retrieval system. However,...
This paper addresses the problem of using unstructured queries to search a structured database in voice search applications. By incorporating structural information in music metadata, the end-to-end search error has been reduced by 15% on text queries and up to 11% on spoken queries. Based on that, an HMM sequential rescoring model has reduced the error rate by 28% on text queries and up to 23% on...
Given some of the recent advances in distributed hash table (DHT) based peer-to-peer (P2P) systems we ask the following questions: are there applications where unstructured queries are still necessary (i.e., the underlying queries do not efficiently map onto any structured framework), and are there unstructured P2P systems that can deliver the high bandwidth and computing performance necessary to...
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