Document (#29483)

Author

Loh, S.
Oliveira, J.P.M. de
Gastal, F.L.

Title

Knowledge discovery in textual documentation : qualitative and quantitative analyses

Source

Journal of documentation. 57(2001) no.5, S.577-590

Year

2001

Abstract

This paper presents an approach for performing knowledge discovery in texts through qualitative and quantitative analyses of high-level textual characteristics. Instead of applying mining techniques on attribute values, terms or keywords extracted from texts, the discovery process works over conceptss identified in texts. Concepts represent real world events and objects, and they help the user to understand ideas, trends, thoughts, opinions and intentions present in texts. The approach combines a quasi-automatic categorisation task (for qualitative analysis) with a mining process (for quantitative analysis). The goal is to find new and useful knowledge inside a textual collection through the use of mining techniques applied over concepts (representing text content). In this paper, an application of the approach to medical records of a psychiatric hospital is presented. The approach helps physicians to extract knowledge about patients and diseases. This knowledge may be used for epidemiological studies, for training professionals and it may be also used to support physicians to diagnose and evaluate diseases.

Footnote

Vgl. auch: http://www.emeraldinsight.com/10.1108/EUM0000000007094.

Theme

Data Mining

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