Název:	Dynamic threshold selection method for multi-label newspaper topic identification
Autoři:	Skorkovská, Lucie
Citace zdrojového dokumentu:	SKORKOVSKÁ, Lucie. Dynamic threshold selection method for multi-label newspaper topic identification. In: International conference on image analysis and recognition. Berlin: Springer, 2013, p. 209-216. (Lecture notes in computer science; 8082). ISBN 978-3-642-40584-6.
Datum vydání:	2013
Nakladatel:	Springer
Typ dokumentu:	článek article
URI:	http://www.kky.zcu.cz/cs/publications/SkorkovskaL_2013_DynamicThreshold http://hdl.handle.net/11025/16982
ISBN:	978-3-642-40584-6
Klíčová slova:	identifikace tématu;multi-label klasifikace textu;jazykové modelování;naivní bayesovská klasifikace
Klíčová slova v dalším jazyce:	topic identification;multi-label text classification;language modelling;naive bayes classification
Abstrakt v dalším jazyce:	Nowadays, the multi-label classification is increasingly required in modern categorization systems. It is especially essential in the task of newspaper article topics identification. This paper presents a method based on general topic model normalisation for finding a threshold defining the boundary between the "correct" and the "incorrect" topics of a newspaper article. The proposed method is used to improve the topic identification algorithm which is a part of a complex system for acquisition and storing large volumes of text data. The topic identification module uses the Naive Bayes classifier for the multiclass and multi-label classification problem and assigns to each article the topics from a defined quite extensive topic hierarchy - it contains about 450 topics and topic categories. The results of the experiments with the improved topic identification algorithm are presented in this paper.
Práva:	© Lucie Skorkovská
Vyskytuje se v kolekcích:	Články / Articles (NTIS)

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