arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1607.06299cs.CL
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远程教育课程在线评论中的意见挖掘

Opinion Mining in Online Reviews About Distance Education Programs

CITEC Bielefeld University(比勒费尔德大学CITEC);Semalytix(Semalytix公司);Online Akademie(在线学院);IMS Uni Stuttgart(斯图加特大学IMS)

Janik Jaskolski, Fabian Siegberg, Thomas Tibroni, Philipp Cimiano, Roman Klinger

摘要:

远程教育项目的普及正在快速增长。与此同时,学生之间在论坛、社交媒体和复习平台上的在线交流也在增加。利用这些信息来支持同学或机构需要提取相关的意见,以便自动生成报告,提供不同远程教育计划的利弊概述。我们报告的实验涉及远程教育专家的目标是开发一个数据集的评论注释相关的类别和方面,在每个类别中讨论的具体审查连同情绪的指示。基于这个实验,我们提出了一种方法来提取一般类别和具体方面的讨论中的审查连同他们的情绪。我们框架这个任务作为一个多标签的分层文本分类问题,并实证研究不同的分类架构的性能,以耦合预测的类别与预测的特定方面在这个类别。我们评估不同的架构,并表明,分层的方法导致优越的结果相比,一个平面模型,独立决策。

英文摘要:

The popularity of distance education programs is increasing at a fast pace. En par with this development, online communication in fora, social media and reviewing platforms between students is increasing as well. Exploiting this information to support fellow students or institutions requires to extract the relevant opinions in order to automatically generate reports providing an overview of pros and cons of different distance education programs. We report on an experiment involving distance education experts with the goal to develop a dataset of reviews annotated with relevant categories and aspects in each category discussed in the specific review together with an indication of the sentiment. Based on this experiment, we present an approach to extract general categories and specific aspects under discussion in a review together with their sentiment. We frame this task as a multi-label hierarchical text classification problem and empirically investigate the performance of different classification architectures to couple the prediction of a category with the prediction of particular aspects in this category. We evaluate different architectures and show that a hierarchical approach leads to superior results in comparison to a flat model which makes decisions independently.

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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