Cluster Analysis Based on Contextual Features Extraction for Conversational Corpus

• 作者: Minghu Jiang Qi Chen Yue Chen
• 来源期刊: 电脑和通信(英文)
• 学科: 医学
• 关键词: CONVERSATIONAL CORPUS CONTEXTUAL FEATURES VSM SOM
• 年，卷（期）: 2015,（5）
• 页码范围: 33-37
• 页数: 5页
• 分类号: R73

摘要

Cluster analysis related to computational linguistics seldom concerned with Pragmatics level. Features of corpus on Pragmatics level related to specific situations, including backgrounds, titles and habits. To improve the accuracy of clustering for conversations collected from international students in Tsinghua University, it required contextual features. Here, we collected four-hundred conversations as a corpus and built it to Vector Space Model. With the Oxford-Duden Dictionary and other methods we modified the model and concluded into three groups. We testified our hypothesis through self-organizing map neural network. The result suggested that the modified model had a better outcome.