A conceptual view on trajectories
A conceptual view on trajectories
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DOI：
10.1016/j.datak.2007.10.008
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发表时间：
2008-04-01
影响因子：
2.5
通讯作者：
Vangenot, Christelle
中科院分区：
文献类型：
--
作者：
Spaccapietra, Stefano;Parent, Christine;Vangenot, Christelle
轨迹数据的分析是越来越多的应用程序的关键，这些应用程序旨在全面了解和管理涉及移动物体的复杂现象（例如，全球快递配送，城市交通管理，鸟类迁徙监测）。目前DBMS对这些数据的支持仅限于存储和查询原始移动（即对象的时空位置）的能力。本文探讨了概念建模如何为应用程序提供直接支持的轨迹（即运动数据，被结构化成可数语义单元）作为一个第一类的概念。一个具体的问题是允许丰富的轨迹与语义注释，允许用户附加语义数据的轨迹的特定部分。基于初步的需求分析和应用实例，本文提出了两种建模方法，一种是基于设计模式，另一种是基于专用数据类型，并说明了它们在扩展关系上下文中实现方面的差异。(c)2007 Elsevier B.V.保留所有权利。
Analysis of trajectory data is the key to a growing number of applications aiming at global understanding and management of complex phenomena that involve moving objects (e.g. worldwide courier distribution, city traffic management, bird migration monitoring). Current DBMS support for such data is limited to the ability to store and query raw movement (i.e. the spatio-temporal position of an object). This paper explores how conceptual modeling could provide applications with direct support of trajectories (i.e. movement data that is structured into countable semantic units) as a first class concept. A specific concern is to allow enriching trajectories with semantic annotations allowing users to attach semantic data to specific parts of the trajectory. Building on a preliminary requirement analysis and an application example, the paper proposes two modeling approaches, one based on a design pattern, the other based on dedicated data types, and illustrates their differences in terms of implementation in an extended-relational context. (c) 2007 Elsevier B.V. All rights reserved.