Information Systems (TOIS)


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ACM Transactions on Information Systems (TOIS), Volume 18 Issue 1, Jan. 2000

Evaluating the performance of distributed architectures for information retrieval using a variety of workloads
Brendon Cahoon, Kathryn S. McKinley, Zhihong Lu
Pages: 1-43
DOI: 10.1145/333135.333136
The information explosion across the Internet and elswhere offers access to an increasing number of document collections. In order for users to effectively access these collections, information retrieval (IR) systems must provide coordinated,...

Shortest-substring retrieval and ranking
Charles L. A. Clarke, Gordon V. Cormack
Pages: 44-78
DOI: 10.1145/333135.333137
We present a model for arbitrary passage retrieval using Boolean queries. The model is applied to the task of ranking documents, or other structural elements, in the order of their expected relevance. Features such as phrase matching,...

Improving the effectiveness of information retrieval with local context analysis
Jinxi Xu, W. Bruce Croft
Pages: 79-112
DOI: 10.1145/333135.333138
Techniques for automatic query expansion have been extensively studied in information research as a means of addressing the word mismatch between queries and documents. These techniques can be categorized as either global or local. While global...