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ACM Transactions on Information Systems (TOIS), Volume 7 Issue 3, July 1989

Optimum polynomial retrieval functions based on the probability ranking principle
Norbert Fuhr
Pages: 183-204
DOI: 10.1145/65943.65944
We show that any approach to developing optimum retrieval functions is based on two kinds of assumptions: first, a certain form of representation for documents and requests, and second, additional simplifying assumptions that predefine the type...

A critical investigation of recall and precision as measures of retrieval system performance
Vijay Raghavan, Peter Bollmann, Gwang S. Jung
Pages: 205-229
DOI: 10.1145/65943.65945
Recall and precision are often used to evaluate the effectiveness of information retrieval systems. They are easy to define if there is a single query and if the retrieval result generated for the query is a linear ordering. However, when the...

Storing text retrieval systems on CD-ROM: compression and encryption considerations
Shmuel T. Klein, Abraham Bookstein, Scott Deerwester
Pages: 230-245
DOI: 10.1145/65943.65946
The emergence of the CD-ROM as a storage medium for full-text databases raises the question of the maximum size database that can be contained by this medium. As an example, the problem of storing the Trésor de la Langue Fran&ccidel;aise...

Knowledge-based search tactics for an intelligent intermediary system
Philip J. Smith, Steven J. Shute, Beb Galdes, Mark H. Chignell
Pages: 246-270
DOI: 10.1145/65943.65947
Research on the nature of knowledge-based systems for bibliographic information retrieval is summarized. Knowledge-based search tactics are then considered in terms of their role in the functioning of a semantically based search system for...

Information retrieval using a hypertext-based help system
F. R. Campagnoni, Kate Ehrlich
Pages: 271-291
DOI: 10.1145/65943.65948
Hypertext offers users a simple, flexible way to navigate through electronic information systems but at the potential risk of becoming lost in the network of interconnected pieces of information. A study was conducted on information retrieval...

The constituent object parser: syntactic structure matching for information retrieval
Douglas P. Metzler, Stephanie W. Haas
Pages: 292-316
DOI: 10.1145/65943.65949
The Constituent Object Parser is a shallow syntactic parser designed to produce dependency tree representations of syntactic structure that can be used to specify the intended meanings of a sentence more precisely than can the key terms of the...