Per-Kristian Halvorsen

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Featured researches published by Per-Kristian Halvorsen.

Archive | 1991

Iterative technique for phrase query formation and an information retrieval system employing same

Jan O Pedersen; Per-Kristian Halvorsen; Douglass R. Cutting; John W. Tukey; Eric A. Bier; Daniel G. Bobrow

Archive | 1994

Method and apparatus for supplementing significant portions of a document selected without document image decoding with retrieved information

M. Margaret Withgott; William M. Newman; Steven C. Bagley; Daniel P. Huttenlocher; Ronald M. Kaplan; Todd A. Cass; Per-Kristian Halvorsen; John Seely Brown; Martin Kay

Archive | 1992

Methods and apparatus for selecting semantically significant images in a document image without decoding image content

M. Margaret Withgott; Steven C. Bagley; Dan S. Bloomberg; Daniel P. Huttenlocher; Ronald M. Kaplan; Todd A. Cass; Per-Kristian Halvorsen; Ramana B. Rao; Douglass R. Cutting

Future Generation Computer Systems | 1988

Projections and Semantic Description in Lexical-Functional Grammar.

Per-Kristian Halvorsen; Ronald M. Kaplan

Archive | 1994

Method and apparatus for summarizing a document without document image decoding

M. Margaret Withgott; Steven C. Bagley; Dan S. Bloomberg; Per-Kristian Halvorsen; Daniel P. Huttenlocher; Todd A. Cass; Ronald M. Kaplan; Ramana R. Rao

Archive | 1991