指数 发表于 2025-3-28 15:51:43
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A Differential Spatio-temporal Model: Primitives and Operatorsevelopment of model primitives and operators to support the aggregation of change over time and the propagation of change across resolution. Our investigation is motivated by recent advances in image-based geospatial databases, with constantly increasing update frequencies, and diverse user communit招待 发表于 2025-3-29 00:33:48
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Lecture Notes in Computer Science phenomenon and to access a particular representation. Finally, we focus on consequences of multiple coexisting representations on data manipulation. This proposal has been tested and validated with users, and implemented as a front-end to existing DBMS..epicondylitis 发表于 2025-3-29 08:46:25
Philipe Ambrozio Dias,Henry Medeirosons about the local uniformity of slopes give us enough information to assign elevation values to these skeleton points. Various interpolation techniques were compared using visualisation of the enriched contour data. Examination of the quality and consistency of the resulting maps indicates the req冷淡周边 发表于 2025-3-29 12:46:28
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Wenbo Li,Longyin Wen,Xiao Bian,Siwei Lyutudy concludes that neither TM spectral bands nor vegetation indices alone are sufficient to establish an effective model for biomass estimation, but multiple regression models that consist of spectral and textural signatures improve biomass estimation performance. The models developed are especiall温和女孩 发表于 2025-3-30 02:20:46
Lipu Zhou,Jiamin Ye,Michael Kaessfectively implement these models within a relational DBMS. In this paper, we describe the design and implementation of a topologically structured management at the DBMS level. Our focus is to translate topological structures into geometric primitives. It is then possible to define a DBMS view on a t减去 发表于 2025-3-30 05:08:52
An Object Model for Geologic Map Informationns of our meta-model, specifically semiotics, category theory, and ontology in geospatial information. Finally, we report briefly on a specific prototype data model derived from the meta-model and implemented in a commercial object-oriented GIS.