Text mining by Tsallis entropy

Maryam Jamaati and Ali Mehri

Physica A: Statistical Mechanics and its Applications, 2018, vol. 490, issue C, 1368-1376

Abstract: Long-range correlations between the elements of natural languages enable them to convey very complex information. Complex structure of human language, as a manifestation of natural languages, motivates us to apply nonextensive statistical mechanics in text mining. Tsallis entropy appropriately ranks the terms’ relevance to document subject, taking advantage of their spatial correlation length. We apply this statistical concept as a new powerful word ranking metric in order to extract keywords of a single document. We carry out an experimental evaluation, which shows capability of the presented method in keyword extraction. We find that, Tsallis entropy has reliable word ranking performance, at the same level of the best previous ranking methods.

Keywords: Text mining; Keyword extraction; Tsallis entropy; Long-range correlation (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:490:y:2018:i:c:p:1368-1376

DOI: 10.1016/j.physa.2017.09.020

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