Properties of extended Boolean models in information retrieval
SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
Extended Boolean information retrieval
Communications of the ACM
Language Modeling for Information Retrieval
Language Modeling for Information Retrieval
A blueprint for automatic Boolean query processing
ACM SIGIR Forum
First experiments searching spontaneous Czech speech
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Overview of the CLEF-2007 Cross-Language Speech Retrieval Track
Advances in Multilingual and Multimodal Information Retrieval
Information retrieval test collection for searching spontaneous Czech speech
TSD'07 Proceedings of the 10th international conference on Text, speech and dialogue
Overview of the CLEF-2006 cross-language speech retrieval track
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
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This paper concentrates on experiments with automatic creation of queries from natural language topics, suitable for use in the Extended Boolean information retrieval system. Because of the lack and/or inadequacy of the available methods, we propose a new method, based on pairing terms into a binary tree structure. The results of this method are compared with the results achieved by our implementation of the known method proposed by Salton and also with the results obtained with manually created queries. All experiments were performed on the same collection that was used in the CLEF 2007 campaign.