Document (#25038)

Author

Sanderson, M.
Lawrie, D.

Title

Building, testing, and applying concept hierarchies

Source

Advances in information retrieval: Recent research from the Center for Intelligent Information Retrieval. Ed.: W.B. Croft

Imprint

Boston, MA : Kluwer Academic Publ.

Year

2000

Pages

S.235-266

Series

The Kluwer international series on information retrieval; 7

Abstract

A means of automatically deriving a hierarchical organization of concepts from a set of documents without use of training data or standard clustering techniques is presented. Using a process that extracts salient words and phrases from the documents, these terms are organized hierarchically using a type of co-occurrence known as subsumption. The resulting structure is displayed as a series of hierarchical menus. When generated from a set of retrieved documents, a user browsing the menus gains an overview of their content in a manner distinct from existing techniques. The methods used to build the structure are simple and appear to be effective. The formation and presentation of the hierarchy is described along with a study of some of its properties, including a preliminary experiment, which indicates that users may find the hierarchy a more efficient means of locating relevant documents than the classic method of scanning a ranked document list

Theme

Semantisches Umfeld in Indexierung u. Retrieval

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