Study on Integrated Management Method of Spatio-temporal Data by Using Metaphor

基于隐喻的时空数据一体化管理方法研究

基本信息

批准号：
15300034
负责人：
NISHIDA Shogo
金额：
$ 9.28万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

With the development of GPS, it has become easy to obtain spatio-temporal data for moving objects. This research studies on management methods of spatio-temporal data for moving objects and human interface which is required for developing various kinds of application of these data. In detail, our research has developed (1)search method of spatio-temporal data, (2)Interface based on metaphor, and (3)multimedia application.To (1),we proposed a method which conducts a fast search of objects whose location changes with time. The data structure consists of a temporal tree which is created from temporal information, and a spatial tree which is created from spatial information. The system selects either of them to narrow down to the data set with less data.To (2),we developed human interface techniques with various kinds of metaphors for the user to intuitively use the application of spatio-temporal data. Firstly, we developed an input interface of the search key for the movie data management system of monitoring cameras. This search interface allows the user to set a large virtual wall in the city and see it in a certain direction. Next, we used a ripple model to an interface. Ripple model represents the radius movements of the event which happens in one place. Lastly, we developed a manipulation interface of face expression which the user wants to control with time.To (3),we propose a recommendation method of multimedia data. This method filters music data from the content of the data. We extract feature parameters from music which change with time and use a decision tree as a user profile.Future work is introducing these techniques to various kinds of application domain.

随着GPS的发展，获取移动物体的时空数据变得很容易。本研究研究开发这些数据的各种应用所需的移动对象和人机界面的时空数据的管理方法。具体来说，我们的研究开发了（1）时空数据的搜索方法，（2）基于隐喻的界面，以及（3）多媒体应用。对于（1），我们提出了一种快速搜索对象的方法，其位置随时间而变化。数据结构由根据时间信息创建的时间树和根据空间信息创建的空间树组成。系统选择其中任何一个来缩小数据集的数据量。对于(2)，我们开发了具有各种隐喻的人机界面技术，以便用户直观地使用时空数据的应用。首先，我们开发了监控摄像机视频数据管理系统的搜索键输入界面。这个搜索界面允许用户在城市中设置一面大型虚拟墙，并在某个方向上看到它。接下来，我们在界面中使用了波纹模型。波纹模型表示在一处发生的事件的半径移动。最后，我们开发了一个用户想要随时间控制的面部表情操作界面。对于(3)，我们提出了一种多媒体数据的推荐方法。该方法从数据内容中过滤音乐数据。我们从音乐中提取随时间变化的特征参数，并使用决策树作为用户配置文件。未来的工作是将这些技术引入各种应用领域。