arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1901.04993cs.IRcs.LGstat.APstat.ML
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在线评论的大规模主题、情感和用户偏好联合分析

Large-Scale Joint Topic, Sentiment & User Preference Analysis for Online Reviews

Temple University(天普大学);Drexel University(德雷塞尔大学)

Xinli Yu, Zheng Chen, Wei-Shih Yang, Xiaohua Hu, Erjia Yan

摘要:

在变分推理(VI)和随机变分推理(SVI)的框架下,对已有的主题-情感-偏好联合评论模型TSPRA进行了非平凡重构. TSPRA是一个基于Gibbs Sampling的模型,它可以解决主题,单词情感和用户偏好,并且已经被证明可以实现良好的性能,但对于大数据集,它只能从相对较小的样本中学习。我们开发的变分模型vTSPRA和svTSPRA,以提高时间的使用,我们的新方法是能够处理数以百万计的评论。我们重建了生成过程,改进了评级回归,解决并提出了坐标上升更新的变分参数,并表明每次迭代的时间复杂度理论上是线性的语料库大小,亚马逊数据集上的实验表明,它比TSPRA收敛速度更快,并在相同的时间量下获得更好的结果。此外,我们调整svTSPRA到一个在线算法ovTSPRA,可以监控振荡的情绪和偏好超时。一些有趣的波动被捕获,并提供了可能的解释。结果给出了强有力的视觉证据,用户偏好更好地被视为一个独立的因素,从情绪。

英文摘要:

This paper presents a non-trivial reconstruction of a previous joint topic-sentiment-preference review model TSPRA with stick-breaking representation under the framework of variational inference (VI) and stochastic variational inference (SVI). TSPRA is a Gibbs Sampling based model that solves topics, word sentiments and user preferences altogether and has been shown to achieve good performance, but for large data set it can only learn from a relatively small sample. We develop the variational models vTSPRA and svTSPRA to improve the time use, and our new approach is capable of processing millions of reviews. We rebuild the generative process, improve the rating regression, solve and present the coordinate-ascent updates of variational parameters, and show the time complexity of each iteration is theoretically linear to the corpus size, and the experiments on Amazon data sets show it converges faster than TSPRA and attains better results given the same amount of time. In addition, we tune svTSPRA into an online algorithm ovTSPRA that can monitor oscillations of sentiment and preference overtime. Some interesting fluctuations are captured and possible explanations are provided. The results give strong visual evidence that user preference is better treated as an independent factor from sentiment.

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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