...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Computers，environment and urban systems >How where is when? On the regional variability and resolution of geosocial temporal signatures for points of interest
【24h】

How where is when? On the regional variability and resolution of geosocial temporal signatures for points of interest

机译：什么时候在哪里？兴趣点的地域时空特征的区域变化和解析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The temporal characteristics of human behavior with respect to points of interest (POI) differ significantly with place type. Intuitively, we are more likely to visit a restaurant during typical lunch and dinner times than at midnight. Aggregating geosocial check-ins of millions of users to the place type level leads to powerful temporal bands and signatures. In previous work these signatures have been used to estimate the place being visited based purely on the check-in time, to label uncategorized places based on their individual signature's similarity to a type signature, and to mine POI categories and their hierarchical structure from the bottom up. However, not all hours of the day and days of the week are equally indicative of the place type, i.e the information gain between temporal bands that jointly form a place type signature differs. To give a concrete example, places can be more easily categorized into weekend and weekday places than into Monday and Tuesday places. Nonetheless, research on the regional variability of temporal signatures is lacking. Intuitively, one would assume that certain types of places are more prone to regional differences with respect to the temporal check-in behavior than others. This variability will impact the predictive power of the signatures and reduce the number of POI types that can be distinguished. In this work, we address the regional variability hypothesis by trying to prove that all place types are created equal with respect to their temporal signatures, i.e., temporal check-in behavior does not change across space. We reject this hypothesis by comparing the inter-signature similarity of 321 place types in three major cities in the USA (Los Angeles, New York, and Chicago). Next, we identify a common core of least varying place types and compare it against signatures extracted from the city of Shanghai, China for cross-culture comparison. Finally, we discuss the impact of our findings on POI categorization and the reliability of temporal signatures for check-in behavior in general. (C) 2015 Elsevier Ltd. All rights reserved.
机译：关于景点（POI）的人类行为的时间特征随场所类型而显着不同。凭直觉，我们通常在午餐和晚餐时间而不是午夜去餐厅。将数百万用户的地理社交签到汇总到场所类型级别，可以产生强大的时间范围和签名。在以前的工作中，这些签名已被用来纯粹基于签入时间来估计要访问的地方，基于其各自的签名与类型签名的相似性来标记未分类的地方，并从底部挖掘POI类别及其层次结构起来但是，并非一天中的所有时间和一周中的几天都可以平等地指示场所类型，即，共同形成场所类型签名的时间带之间的信息增益有所不同。举一个具体的例子，与周一和周二的位置相比，可以更轻松地将位置分类为周末和工作日位置。然而，缺乏对时间签名的区域变异性的研究。凭直觉，人们会假设某些类型的地方在时间办理登机行为方面比其他地方更容易出现地区差异。这种可变性将影响签名的预测能力，并减少可以区分的POI类型的数量。在这项工作中，我们通过尝试证明所有场所类型在其时空特征方面都是相同的来创建的，从而解决了区域变异性假设，即时空值机行为不会在整个空间中发生变化。通过比较美国三个主要城市（洛杉矶，纽约和芝加哥）中321个场所类型的签名间相似性，我们拒绝了这一假设。接下来，我们确定地点类型最少的共同核心，并将其与从中国上海提取的签名进行比较，以进行跨文化比较。最后，我们讨论了我们的发现对POI分类的影响以及通常用于签到行为的时间签名的可靠性。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号