Spatio-Temporal Data Model

时空数据模型

• 批准号: 10680333
• 负责人: KANAMORI Yoshinari
• 金额: $ 1.73万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10680333/
• 关键词: Spatio-temporal data model; image sequences; interval; MBR; content retrieval; time-interval class; object database; multi-dimensional index; 区間; 時空間クラス; 時区間; インデックシィング

(1) We proposed a method for representing numerous spatio-temporal concepts appearing in image sequences. The objects are modeled approximately, by use of cuboids consisting of minimum bounding rectangles (MBR) with time intervals. The spatial relations, including topological and directional relations and the distances between objects, are then defined. The definitions allow for uniform representations of the spatio-temporal queries on objects appearing in image sequences using intervals. We also give examples of such queries for contents retrieval, and illustrate how they are performed in our method.(2) We describe a way of implementing a spatio-temporal conceptual data model which we have proposed as a class library on an object database system. The class library is composed of three classes : temporal, spatial, and spatio-temporal classes. As the temporal part of our class library, we exploit time-interval class based on time-interval conceptual model which we has proposed. We first build a class for spatial concepts, and then integrate the class with the time-interval class.We also showed some examples of spatio-temporal queries using class library. Moreover, we investigate an indexing structure based on R*-tree for the class library so that any spatio-temporal query can be efficiently processed with it.

(1)我们提出了一种方法来表示出现在图像序列中的大量时空概念。对象的近似建模，通过使用长方体组成的最小边界矩形（MBR）的时间间隔。然后定义空间关系，包括拓扑关系、方向关系和对象之间的距离。这些定义允许使用间隔对出现在图像序列中的对象进行时空查询的统一表示。我们还给出了这样的查询内容检索的例子，并说明他们是如何在我们的方法进行。(2)我们描述了一种实现时空概念数据模型的方法，我们提出了一个对象数据库系统上的类库。类库由三个类组成：时态类、空间类和时空类。作为类库的时态部分，我们在提出时间间隔概念模型的基础上开发了时间间隔类。首先建立了一个空间概念类，然后将其与时间间隔类集成，并给出了利用类库进行时空查询的实例。此外，我们研究了一种基于R*-树的索引结构的类库，使任何时空查询可以有效地处理它。

项目成果

天笠俊之,他: "時空間願念データモデルの実装"情報処理学会論文:データーベース. 40. 141-151 (1999)

Toshiyuki Amagasa 等人：“时空愿望数据模型的实现”日本信息处理学会论文：数据库 40. 141-151 (1999)。

T. Amagasa, et al.: "An implementation of spatio-temporal conceptual data model"Transaction of IPSJ. Vol.40, No. SIG6 (TOD3) (In Japanese). 141-151 (1999)

T. Amagasa 等人：“时空概念数据模型的实现”IPSJ 交易。

T. Amagasa, et al.: "Implementing class library and index for managing spatio-temporal data"International workshop on NewDB' 98. LNCS1552. 532-541 (1999)

T. Amagasa 等人：“实现用于管理时空数据的类库和索引”NewDB 98 国际研讨会。LNCS1552。

T.Amagasa et al.: "Implementing class library and index for managing spatio-temporal data"NewDB'98, LNCS1552. 532-541 (1999)

T.Amagasa 等人：“实现用于管理时空数据的类库和索引”NewDB98，LNCS1552。

T.Amagasa et al.: "An implementation of interval-based conceptual model for temporal data"IECE Trans. Info. and Syst.. E82-D. 136-146 (1999)

T.Amagasa 等人：“时态数据的基于间隔的概念模型的实现”IECE Trans。