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CLC number: TP39

On-line Access: 2023-07-03

Received: 2022-07-22

Revision Accepted: 2023-01-06

Crosschecked: 2023-07-03

Cited: 0

Clicked: 1012

Citations:  Bibtex RefMan EndNote GB/T7714


Jingfa LIU






Zhihe YANG


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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.6 P.859-875


A new focused crawler using an improved tabu search algorithm incorporating ontology and host information

Author(s):  Jingfa LIU, Zhen WANG, Guo ZHONG, Zhihe YANG

Affiliation(s):  School of Information Science and Technology, Guangdong University of Foreign Studies, Guangzhou 510006, China; more

Corresponding email(s):   1007427607@qq.com

Key Words:  Focused crawler, Tabu search algorithm, Ontology, Host information, Priority evaluation

Jingfa LIU, Zhen WANG, Guo ZHONG, Zhihe YANG. A new focused crawler using an improved tabu search algorithm incorporating ontology and host information[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(6): 859-875.

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To solve the problems of incomplete topic description and repetitive crawling of visited hyperlinks in traditional focused crawling methods, in this paper, we propose a novel focused crawler using an improved tabu search algorithm with domain ontology and host information (FCITS_OH), where a domain ontology is constructed by formal concept analysis to describe topics at the semantic and knowledge levels. To avoid crawling visited hyperlinks and expand the search range, we present an improved tabu search (ITS) algorithm and the strategy of host information memory. In addition, a comprehensive priority evaluation method based on Web text and link structure is designed to improve the assessment of topic relevance for unvisited hyperlinks. Experimental results on both tourism and rainstorm disaster domains show that the proposed focused crawlers overmatch the traditional focused crawlers for different performance metrics.





Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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