منابع مشابه
Mobile Local Search via P2P Databases1
We examine the problem of mobile local search via P2P databases. We argue that P2P databases can lead to a new form of mass communication that may revolutionize local search. We introduce our approach, MOBI-DIK, which is a platform-independent search engine based on mobile P2P databases.
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The need to access spatial data at multiple levels of detail is a fundamental requirement of many applications of geographical information, yet conventional spatial database access methods are based on single resolution spatial objects. In this paper we present a design for multi-scale spatial objects in which both spatial objects and the vertices of their component geometry are labelled with s...
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Database systems offering a multidimensional schema on a logical level (e.g. OLAP systems) are often used in data warehouse environments. The user requirements in these dynamic application areas are subject to frequent changes. This implies frequent structural changes of the database schema. In this paper, we present a formal framework to describe evolutions of multidimensional schemas and thei...
متن کاملFitting Round Objects Into Square Databases1
Object-oriented systems could use much of the functionality of database systems to manage their objects. Persistence, object identity, storage management, distribution and concurrency control are some of the things that database systems traditionally handle well. Unfortunately there is a fundamental difference in philosophy between the object-oriented and database approaches, namely that of obj...
متن کاملPersistence Software: Bridging Object-Oriented Programming and Relational Databases1
Building object oriented applications which access relational data introduces a number of technical issues for developers who are making the transition to C++. We describe these issues and discuss how we have addressed them in Persistence, an application development tool that uses an automatic code generator to merge C++ applications with relational data. We use client-side caching to provide t...
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ژورنال
عنوان ژورنال: Journal of Information Processing and Management
سال: 1986
ISSN: 0021-7298,1347-1597
DOI: 10.1241/johokanri.29.60