项目名称: 空间大数据挖掘的关键技术研究
项目编号: No.61472039
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 其他
项目作者: 王树良
作者单位: 北京理工大学
项目金额: 84万元
中文摘要: 空间大数据是信息世界的基础性资源,因为体量巨大、真实质差、价值密度低等问题,导致难以发挥数据价值,而带给空间数据挖掘新的任务。本项目在空间大数据的环境下,立足数据污染和价值不均等基础问题,研究空间大数据挖掘的关键技术。 (1)面向空间大数据的体量巨大、真实质差的问题,研究新的数据清理技术,提高数据质量,预防大数据变成大垃圾; (2)面向空间大数据的体量巨大、价值密度低的问题,研究新的数据聚类技术,根据价值密度聚集数据,实现大数据的大价值; (3)以灾害大数据为例应用,提高技术成果的实用性,让大数据实现减灾防灾的价值。
中文关键词: 空间数据挖掘;数据挖掘;大数据
英文摘要: Spatial big data is the fundamental source in the information world. The emerging problems of massive volume, bad quality, and sparse value, makes it difficult to take full advantage of the data value, which brings new tasks for spatial data mining. In this project, the basic problems of data pollution and value inequality will be focused on for developing novel techniques for data cleaning and clustering, in the context of spatial big data. (1) Focusing on the issues of massive volume and bad quality, new techniques on data cleaning will be proposed to improve the quality of spatial data, avoiding the change from big data to big garbage in advance. (2) Concentrating on the issues of massive volume and sparse value, new methods on data clustering will be proposed to group spatial data under their values, implementing the big value of big data. (3) Big data from disasters is taken as an example to testify the usefulness of the proposed techniques, so that the value of spatial big data achieves the disaster prevention and mitigation.
英文关键词: Data ming;Spatial data mining;Big data