Keyword weight optimization using gradient strategies in event focused web crawling

•A web crawling system for obtaining the set of web data regarding key events is essential.•This work has proposed a new and efficient method for such keyword set enhancement.•The web crawler is a primary unit of such search engines and its optimization improves the efficiency of search.•Gradient de...

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Bibliographic Details
Published in:	Pattern recognition letters Vol. 142; pp. 3 - 10
Main Authors:	Rajiv, S, Navaneethan, C
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01.02.2021 Elsevier Science Ltd
Subjects:	Algorithms Classifiers Feature extraction Heuristic methods Information retrieval Keywords Optimization Particle swarm optimization Search engines Smoothness Stochastic gradient descent (SGD) Support vector machine (SVM) classifiers Support vector machines Term frequency (TF) based feature extraction Web crawler Web-based retrieval system Websites Weight Web crawler Stochastic gradient descent (SGD) Term frequency (TF) based feature extraction Support vector machine (SVM) classifiers Web-based retrieval system
ISSN:	0167-8655, 1872-7344
Online Access:	Get full text
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