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ACM Transactions on Information Systems (TOIS), Volume 16 Issue 4, Oct. 1998

Metric details for natural-language spatial relations
Max J. Egenhofer, A. Rashid B. M. Shariff
Pages: 295-321
DOI: 10.1145/291128.291129
Spatial relations often are desired answers that a geographic information system (GIS) should generate in response to a user's query. Current GIS's provide only rudimentary support for processing and interpreting natural-language-like spatial...

A semidiscrete matrix decomposition for latent semantic indexing information retrieval
Tamara G. Kolda, Dianne P. O'Leary
Pages: 322-346
DOI: 10.1145/291128.291131
The vast amount of textual information available today is useless unless it can be effectively and efficiently searched. The goal in information retrieval is to find documents that are relevant to a given user query. We can represent and...

Collaborative conceptual schema design: a process model and prototype system
Sudha Ram, V. Ramesh
Pages: 347-371
DOI: 10.1145/291128.291130
Recent years have seen an increased interest in providing support for collaborative activities among groups of users participating in various information systems design tasks such as, requirements determination and process modeling. However,...

Structured hypertext with domain semantics
Weigang Wang, Roy Rada
Pages: 372-412
DOI: 10.1145/291128.291132
One important facet of current hypertext research involves using knowledge-based techniques to develop and maintain document structures. A semantic net is one such technique. However, most semantic-net-based hypertext systems leave the linking...

Author Index
W. Bruce Croft
Pages: 413-414
DOI: 10.1145/291128.291133