网络文本数据时空感知计算概念、方法及应用场景

网络文本数据作为网络传感数据的一种,因其包含大量的时空信息,以及丰富的语义信息,不仅能够用于研究社会问题的时空特征,也能够对社会现象的时空规律提供语义上的可解释性,因此存在一定的应用价值,目前已逐渐得到研究者的关注。本文提出了网络文本数据的一般概念表示,分析了网络文本数据的类型和特征,重点梳理了网络文本数据时空感知计算的计算方法,总结了文本优先+地理背景和地理优先+文本增强两种计算模式,并从静态到动态、场景到区域的视角总结了4个相关应用场景。

Concept,Method, and Application Scene of Spatiotemporal Awareness Computing for Web-based Text Data

As a type of web sensing data,web-based text data contains a lot of spatiotemporal information and rich semantic information,which can be used not only to study the spatiotemporal characteristics of social problems,but also to provide semantic interpretability for the spatiotemporal laws of social phenomena.Therefore,it has a certain application value,and has gradually attracted the attention of researchers.This paper proposes the general concept representation of the web-based text data,analyzes the types and characteristics of the web-based text data,summarizes calculation methods of the spatiotemporal perception calculation of the web-based text data,discuses two calculation modes:text first-geographic background and geography first-text enhancement,and summarizes four relevant application fields from the perspective of static to dynamic and place to region.