Discrimination decisions for 100000-dimensional spaces

Discrimination decisions for 100000-dimensional spaces

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Article ID: iaor19952343
Country: Switzerland
Volume: 55
Issue: 1
Start Page Number: 323
End Page Number: 344
Publication Date: May 1995
Journal: Annals of Operations Research
Authors: , ,
Abstract:

Discrimination decisions arise in many natural language processing tasks. Three classical tasks are discriminating texts by their authors (author identification), discriminating documents by their relevance to some query (information retrieval), and discriminating multi-meaning words by their meanings (sense discrimination). Many other discrimination tasks arise regularly, such as determining whether a particular proper noun represents a person or a place, or whether a given work from some tele-type text would be capitalized if both cases had been used. Areas for research based on observed shortcomings of the method are also discussed. In particular, an example in the author identification task shows the need for a robust version of the method. Also, the method makes an assumption of independence which is demonstrably false, yet there has been no careful study of the results of this assumption.

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