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The case against user interface consistency

Designers striving for user interface consistency can resemble Supreme Court justices trying to define pornography: each of us feels we know it when we see it, but people often disagree and a precise definition remains elusive …

A finite and real-time processor for natural language

People process natural language in real time and with very limited short-term memories. This article describes a computational architecture for syntactic performance that also requires fixed finite resources.

Impact of a restricted natural language interface on ease of learning and productivity

People process natural language in real time and with very limited short-term memories. This article describes a computational architecture for syntactic performance that also requires fixed finite resources.

Four paradigms of information systems development

Developing computer-based information systems necessarily involves making a number of implicit and explicit assumptions. The authors examine four different approaches to information systems development.

The 1987—1988 Taulbee survey

The Computing Research Board's 1987-1988 Taulbee Survey includes the latest statistics on production and employment of Ph.D.'s and faculty in computer science and engineering. Included also are departments offering Ph.D.'s in …

Results of the nineteenth ACM North American computer chess championship


An evaluation tool for measuring authoring system performance

A model for producing objective and precise measurements of the power and performance of authoring systems is described. An animation task is given as an example of the model's potential as a tool for evaluating authoring systems …

Practical performance of Bloom filters and parallel free-text searching

Bloom filter technique of hashing finds several applications, such as in efficient maintenance of differential files, space efficient storage of dictionaries, and parallel free-text searching. The performance of hash transformations …

Technical correspondence