Land adaptability evaluation based on vector - raster mixed data model 基于矢栅混合数据模型的土地适宜性评价研究
A hybrid 3d data model based on multi - dems and qtpvs and its application in geological modeling 的混合数据模型及其在地质建模中的应用
Traditional mixed data model , which manages special data in the form of files and manages attribute data in the form of relation database , is adopted during building special database ( attribute database vector and grid database ) which is the nucleus of the data bank 数据库中的核心部分?空间数据库(属性数据库与图形图像库)采用传统的混合数据模型,以文件的形式管理空间数据,以关系数据库管理属性数据。
5 . a mixed data model called relation - level - object , which is used to image retrieval system in flood prevention , is presented in order to satisfy special access requirement for image data and spatial data . with the research results of this dissertation , a prototype system , a content - based engineering image retrieval system , is designed and implemented 研究了图象检索技术在水利行业中的应用,提出了关系?层次?面向对象的混合数据模型,并扩展数据模型以满足多媒体数据与空间数据的特殊情况,摘要研究了系统实现的具体技术方案,设计并实现了一个用于工情图象检索模型系统。
混合: mix; blend; mingle; admix; m ...数据: data; record; information模型: model; pattern数据模型: data modeling; dm data model原数据模型: irreducible data model混合数据: blended data混合数据集: mixed data set混合数据库: hybrid database层次数据模型: hierarchical data model; laminarization data model超图数据模型: hypergraph data model地图数据模型: cartographic data model对象数据模型: odm object data model分级数据模型: hierarchic data model; hierarchical data model概念数据模型: cdm; conceptual data model关系数据模型: relation data model; relational data model规范数据模型: canonical data model函数数据模型: functional data model空间数据模型: spatial data model逻辑数据模型: ldm logic data model; logic data model目标数据模型: target data model内部数据模型: internal data model企业数据模型: enterprise data model全局数据模型: global data model删截数据模型: censored data models矢量数据模型: vector data model