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Data Analysis and Knowledge Discovery  2017, Vol. 1 Issue (2): 35-40    DOI: 10.11925/infotech.2096-3467.2017.02.05
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Constructing Dynamic Social Tag Cloud for User Interests
Xie Mengyao, Pan Xuwei()
School of Economics and Management, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Abstract  

[Objective] Social tags can be used for the recommendation and navigation sections of information retrieval systems. This paper proposes a method to construct a dynamic user tag cloud based on the temporal evolution to reveal the changes of user interests. [Methods] We established the tags’ dynamic weights with the forgetting and strengthening characteristics of memory in psychology. Thus, the dynamic user tag cloud reflect user’s changing focus. [Results] Compared with the existing ones, the proposed algorithm could effectively sort the tags, and then make accurate predictions or recommendations. [Limitations] The proposed method performed well over long period of time because user’s interests do not change significantly in a short period of time. [Conclusions] The proposed algorithm could effectively identify user’s interests and then improve the personalized services.

Key wordsSocial Tagging      Tag      User Interests      Dynamic Tag Cloud     
Received: 12 October 2016      Published: 27 March 2017
:  TP311  

Cite this article:

Xie Mengyao,Pan Xuwei. Constructing Dynamic Social Tag Cloud for User Interests. Data Analysis and Knowledge Discovery, 2017, 1(2): 35-40.

URL:

https://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.2096-3467.2017.02.05     OR     https://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2017/V1/I2/35

数据集 用户数 资源数 标签数 时间跨度
Delicious 185 068 4 153 293 939 036 2009.1-2009.6
Last.fm 1 892 17 632 11 946 2005.8-2011.5
UserID ResourceID TagID TagTime
626177 7864044 2521 2009/1/27
626177 7864044 7833 2009/1/27
626177 7864044 7192 2009/1/27
626177 34862262 7833 2009/1/29
626177 34862262 94 2009/1/29
625254 7864044 2521 2009/1/30
625254 7864044 7833 2009/1/30
625254 7864044 289 2009/1/30
625254 7864044 5032 2009/1/30
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