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arXiv 1701.01276cs.IR
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Twitter中标签重用的时间效应:一种认知启发的标签推荐方法

Temporal Effects on Hashtag Reuse in Twitter: A Cognitive-Inspired Hashtag Recommendation Approach

Dominik Kowald, Subhash Pujari, Elisabeth Lex

摘要:

标签已经成为Twitter等社交平台中的一个强大工具,用于对内容进行分类和搜索,并在社交网络的成员之间传播短消息。在本文中,我们研究了Twitter中的时间标签使用实践,目的是设计一个认知启发的标签推荐算法,我们称之为BLLi,s。我们的主要想法是将时间对(i)个人标签重用(即,重用自己的主题标签),以及(ii)社交主题标签重用(即,重新使用先前已被跟随者使用的主题标签)到预测模型中。为此,我们转向认知架构ACT-R的基本水平学习(BLL)方程,该方程解释了人类记忆中项目暴露的时间依赖性衰减。我们验证BLLi,s使用两个爬行的Twitter数据集在两个评估方案:首先,只有时间使用模式的过去的主题标签分配,其次,这些模式与基于内容的分析相结合的当前推文。在这两种情况下,我们发现不仅时间效应对个人和社会标签重用起着重要作用,而且BLLi,s提供了比当前最先进的标签推荐方法更好的预测准确性和排名结果。

英文摘要:

Hashtags have become a powerful tool in social platforms such as Twitter to categorize and search for content, and to spread short messages across members of the social network. In this paper, we study temporal hashtag usage practices in Twitter with the aim of designing a cognitive-inspired hashtag recommendation algorithm we call BLLi,s. Our main idea is to incorporate the effect of time on (i) individual hashtag reuse (i.e., reusing own hashtags), and (ii) social hashtag reuse (i.e., reusing hashtags, which has been previously used by a followee) into a predictive model. For this, we turn to the Base-Level Learning (BLL) equation from the cognitive architecture ACT-R, which accounts for the time-dependent decay of item exposure in human memory. We validate BLLi,s using two crawled Twitter datasets in two evaluation scenarios: firstly, only temporal usage patterns of past hashtag assignments are utilized and secondly, these patterns are combined with a content-based analysis of the current tweet. In both scenarios, we find not only that temporal effects play an important role for both individual and social hashtag reuse but also that BLLi,s provides significantly better prediction accuracy and ranking results than current state-of-the-art hashtag recommendation methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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