نتایج جستجو برای: Database theory

تعداد نتایج: 1034320  

Journal: :Journal of Computer and System Sciences 2007

Problem of knowledge analysis for decision support system is the most difficult task of information systems. This paper presents a new approach based on notions of mathematical theory of Rough Sets to solve this problem. Using these concepts a systematic approach has been developed to reduce the size of decision database and extract reduced rules set from vague and uncertain data. The method ha...

Journal: :Journal of Computer and System Sciences 2007

Journal: :Theory of Computing Systems 2015

Journal: :International Journal of Intelligent Information and Database Systems 2015

2010
Reinhard Karge

The paper provides a common mathematical database theory that unifies relational databases, data warehouse models and object-oriented database models. It is based on long experiences reflected in human language models and database system development. This is a short version of the theory. The complete version can be requested at [email protected]. The paper discusses a state model ...

Journal: :ACM Transactions on Privacy and Security 2019

Journal: :Journal of Computer and System Sciences 2011

Journal: :international journal of civil engineering 0
s. malaikrisanachalee faculty of engineering, kasetsart university, 50 phaholyothin rd., jatujak, bangkok, thailand, 10220 h. vathananukij faculty of engineering, kasetsart university, 50 phaholyothin rd., jatujak, bangkok, thailand, 10220

java is an object-oriented program that has abundant open-source libraries for application development and 3d model rendering. spatial database is the database that can efficiently store and manage geographic information data though various spatial data management techniques. this paper explores the rationale of coupling java with spatial database to develop an effective platform for future bui...

Journal: :جغرافیا و توسعه ناحیه ای 0
عزت الله مافی مهدی وطن پرست محمد محسن رضوی

the theory of urban ecology is based on explaining urban spatial structure, studying and describing the reciprocal relationship between human societies in the urban areas and the environment, as well as analyzing the circumstances of urban population segregation and production of everyday life spaces. to study and explain urban ecological structure of mashhad, the case study of the article, we ...

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