A method for refining a taxonomy by using annotated suffix trees and wikipedia resources
|A method for refining a taxonomy by using annotated suffix trees and wikipedia resources|
|Author(s)||Chernyak E., Mirkin B.|
|Published in||Procedia Computer Science|
|Keyword(s)||String-to-text relevance, Suffix trees, Taxonomy refinement, Utilizing Wikipedia|
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A method for refining a taxonomy by using annotated suffix trees and wikipedia resources is a 2014 conference paper written in English by Chernyak E., Mirkin B. and published in Procedia Computer Science.
A two-step approach to taxonomy construction is presented. On the first step the frame of taxonomy is built manually according to some representative educational materials. On the second step, the frame is refined using the Wikipedia category tree and articles. Since the structure of Wikipedia is rather noisy, a procedure to clear the Wikipedia category tree is suggested. A string-to-text relevance score, based on annotated suffix trees, is used several times to 1) clear the Wikipedia data from noise; 2) to assign Wikipedia categories to taxonomy topics; 3) to choose whether the category should be assigned to the taxonomy topic or stay on intermediate levels. The resulting taxonomy consists of three parts: the manully set upper levels, the adopted Wikipedia category tree and the Wikipedia articles as leaves. Also, a set of so-called descriptors is assigned to every leaf; these are phrases explaining aspects of the leaf topic. The method is illustrated by its application to two domains: a) Probability theory and mathematical statistics, b) "Numerical analysis" (both in Russian). © 2014 Published by Elsevier B.V.
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