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arXiv 2002.02353cs.CL
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会话结构感知和上下文相关的在线讨论话题模型

Conversational Structure Aware and Context Sensitive Topic Model for Online Discussions

Case Western Reserve University(凯斯西储大学)

Yingcheng Sun, Kenneth Loparo, Richard Kolacinski

摘要:

每天在社交媒体平台上产生数百万次在线讨论。主题建模是更好地理解大规模文本数据集的有效方法。传统的主题模型在在线讨论中取得了有限的成功,为了克服它们的局限性,我们使用讨论线程的树结构,并提出了一个“流行度”的度量来量化评论的回复数量,以扩展单词出现的频率,和“传递性”的概念来表征嵌套的讨论线程中节点之间的主题依赖性。我们建立了一个会话结构感知的主题模型(CSATM)的基础上流行度和传递性推断的主题和他们的评论分配。真实论坛数据集上的实验被用来证明提高性能的主题提取与六个不同的测量的一致性和令人印象深刻的准确性主题分配。

英文摘要:

Millions of online discussions are generated everyday on social media platforms. Topic modelling is an efficient way of better understanding large text datasets at scale. Conventional topic models have had limited success in online discussions, and to overcome their limitations, we use the discussion thread tree structure and propose a "popularity" metric to quantify the number of replies to a comment to extend the frequency of word occurrences, and the "transitivity" concept to characterize topic dependency among nodes in a nested discussion thread. We build a Conversational Structure Aware Topic Model (CSATM) based on popularity and transitivity to infer topics and their assignments to comments. Experiments on real forum datasets are used to demonstrate improved performance for topic extraction with six different measurements of coherence and impressive accuracy for topic assignments.

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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