arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.05665cs.LGstat.ML
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基于趋势效用估计的类人时间序列摘要

Human-like Time Series Summaries via Trend Utility Estimation

University of Southern California(南加州大学);Information Sciences Institute(信息科学研究所)

Pegah Jandaghi, Jay Pujara

摘要:

在许多情况下,人类更喜欢基于文本的定量数据表示,而不是数字,表格或图形表示。文本摘要对于复杂数据的吸引力激发了对数据到文本系统的研究。虽然有几种用于时间序列的数据到文本工具,但很少有人试图模仿人类对时间序列的总结。在本文中,我们提出了一个为时间序列创建类人文本描述的模型。我们的系统发现时间序列数据中的模式,并根据使用效用估计对人类行为的经验观察对这些模式进行排名。我们提出的效用估计模型是一个贝叶斯网络捕捉不同模式之间的相互依赖性。我们描述了这个网络的学习步骤,并介绍了基线以及每个步骤的性能。我们的系统的输出是一个自然语言描述的时间序列,试图匹配人类的总结相同的数据。

英文摘要:

In many scenarios, humans prefer a text-based representation of quantitative data over numerical, tabular, or graphical representations. The attractiveness of textual summaries for complex data has inspired research on data-to-text systems. While there are several data-to-text tools for time series, few of them try to mimic how humans summarize for time series. In this paper, we propose a model to create human-like text descriptions for time series. Our system finds patterns in time series data and ranks these patterns based on empirical observations of human behavior using utility estimation. Our proposed utility estimation model is a Bayesian network capturing interdependencies between different patterns. We describe the learning steps for this network and introduce baselines along with their performance for each step. The output of our system is a natural language description of time series that attempts to match a human's summary of the same data.

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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