Obsolescence determination of network information based on “double-proportion” method
WANG Juncheng; YANG Kai; LI Xiang; ZHU Mengxian; Wang Juncheng (E-mail: wangjc@istic.ac.cn)
2013-12-25
Source PublicationChinese Journal of Library and Information Science
ISSN1674-3393
Volume6Issue:4Pages:28-39
Other Abstract
Purpose: It is necessary to determine whether the value of network information exists or not from users' perspective. This study is to develop a new approach, called “double-proportion” method (DPM), to determine the point of information obsolescence.

Design/methodology/approach: Firstly, DPM is produced and introduced with statistics in great detail. Secondly, two data sets from Qiangguo Forum and NetEase News are used to validate DPM. Finally, the distributions of lifetime of the two sets are compared and reasons for the differences are revealed.

Findings: In Qiangguo Forum, posts with no comments within 17 h can be identified as obsolescence, which indicates that approximately 83% of posts information has died within 24 h, 92% died within 36 h and almost all died within 54 h; While in NetEase News, news without comments within 28 h can be identified as obsolescence.

Research limitations: This study adopted comments as the only behavior indicator, for further study other indicators like page views, republished times need to be used, to exploit better solutions for information obsolescence.

Practical implications: According to obsolescence determination, network managers can optimize webpages more rationally, delete aged information in time, preserve valuable information, help search engines ignore aged webpages, optimize reptiles' mechanisms, and help advertisers choose webpages rationally to advertise online.

Originality/value: Firstly, DPM is designed from users' perspective to describe the lifetime of information; Secondly, DPM is easy to use. DPM merges and improves former methods by taking the long-tail theory and Pareto principle into consideration.
;
Purpose: It is necessary to determine whether the value of network information exists or not from users' perspective. This study is to develop a new approach, called “double-proportion” method (DPM), to determine the point of information obsolescence.

Design/methodology/approach: Firstly, DPM is produced and introduced with statistics in great detail. Secondly, two data sets from Qiangguo Forum and NetEase News are used to validate DPM. Finally, the distributions of lifetime of the two sets are compared and reasons for the differences are revealed.

Findings: In Qiangguo Forum, posts with no comments within 17 h can be identified as obsolescence, which indicates that approximately 83% of posts information has died within 24 h, 92% died within 36 h and almost all died within 54 h; While in NetEase News, news without comments within 28 h can be identified as obsolescence.

Research limitations: This study adopted comments as the only behavior indicator, for further study other indicators like page views, republished times need to be used, to exploit better solutions for information obsolescence.

Practical implications: According to obsolescence determination, network managers can optimize webpages more rationally, delete aged information in time, preserve valuable information, help search engines ignore aged webpages, optimize reptiles' mechanisms, and help advertisers choose webpages rationally to advertise online.

Originality/value: Firstly, DPM is designed from users' perspective to describe the lifetime of information; Secondly, DPM is easy to use. DPM merges and improves former methods by taking the long-tail theory and Pareto principle into consideration.
KeywordInformation Obsolescence Obsolescence Determination Double-proportion Method Users’ Behavior Lifetime
Subject Area编辑出版
URL查看原文
Funding OrganizationThis study is jointly supported by the National Social Science Foundation of China (Grant No.12CTQ025) and the National Natural Science Foundation of China (Grant No.70833005).
Document Type期刊论文
Identifierhttp://ir.las.ac.cn/handle/12502/6704
CollectionJournal of Data and Information Science_Chinese Journal of Library and Information Science-2013
Corresponding AuthorWang Juncheng (E-mail: wangjc@istic.ac.cn)
Recommended Citation
GB/T 7714
WANG Juncheng,YANG Kai,LI Xiang,等. Obsolescence determination of network information based on “double-proportion” method[J]. Chinese Journal of Library and Information Science,2013,6(4):28-39.
APA WANG Juncheng,YANG Kai,LI Xiang,ZHU Mengxian,&Wang Juncheng .(2013).Obsolescence determination of network information based on “double-proportion” method.Chinese Journal of Library and Information Science,6(4),28-39.
MLA WANG Juncheng,et al."Obsolescence determination of network information based on “double-proportion” method".Chinese Journal of Library and Information Science 6.4(2013):28-39.
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