HEURISTIC ALGORITHM FOR FRAGMENTATION AND ALLOCATION IN DISTRIBUTED OBJECT ORIENTED DATABASE
نویسندگان
چکیده
منابع مشابه
A Mixed Fragmentation Algorithm for Distributed Object Oriented Databases
The performance of applications on Object Oriented Database Management Systems (OODBMSs) is strongly affected by Distributed Design, which reduces irrelevant data accessed by applications and data exchange among sites. This work proposes an algorithm to the fragmentation phase of the distributed design of object oriented databases, according to a set of heuristics obtained from experimental res...
متن کاملEfficient Allocation in Distributed Object Oriented Databases
Efficient distribution of data is a major challenge in distributed databases. The problem is even more severe for distributed object oriented databases because of inheritance, encapsulation and the more complex problem involved when methods invoke other methods. This problem is a harder version of the relational database allocation problem(DAP), a problem known to be NP-hard. We looked at the p...
متن کاملVertical Fragmentation and Allocation in Distributed Deductive Database Systems
Although approaches for vertical fragmentation and data allocation have been proposed 13, 16], algorithms for vertical fragmentation and allocation of data and rules in distributed deductive database systems (DDDBSs) are lacking. In this paper, we present diierent approaches for vertical fragmentation of relations that are referenced by rules and an allocation strategy for rules and fragments i...
متن کاملAn Object-oriented Multimedia Distributed Meta-database
We describe a multimedia distributed databases system (mmdd) which manages associations of arbitrary renderable objects (such as text, 3D-graphics, sound, video, certain executables) using a hybrid object-oriented, relational database abstraction. Strengths include author-modi able schema, author-recon gurable front ends, and relatively straightforward extensibility to arbitrary media types and...
متن کاملA Snapshot Utility for a Distributed Object-Oriented Database System
Thor is an object-oriented database management system that is designed to be scalable in a distributed environment. Thor allows objects to be stored persistently and accessed efficiently while providing ACID transaction semantics. In this paper, we propose to extend Thor with a snapshot utility. Snapshots are useful for a wide range of applications, including data analysis, data mining and data...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computer Science and Cybernetics
سال: 2016
ISSN: 1813-9663,1813-9663
DOI: 10.15625/1813-9663/32/1/5772