A state transition model for distributed query processing
نویسندگان
چکیده
منابع مشابه
A Distributed Query Processing Engine
Wireless sensor networks (WSNs) are formed of tiny, highly energy-constrained sensor nodes that are equipped with wireless transceivers. They may be mobile and are usually deployed in large numbers in unfamiliar environments. The nodes communicate with one another by autonomously creating ad-hoc networks which are subsequently used to gather sensor data. WSNs also process the data within the ne...
متن کاملA State-Transition Model for Distributed Multimedia Documents
In this paper we present a state-transition model to describe a multimedia presentation evolution, i.e., its run-time behavior. Each object is modelled as an independent entity with its own behavior and resources allocation: a certain amount of bandwidth, buffer and a display (or an audio channel) for its playback. The evolution of a single media is modelled by means of a finite state machine, ...
متن کاملAdaptive Distributed Query Processing
For a large-scale distributed query engine, which supports long running queries over federated data sources, it is hard to obtain statistics of data sources, servers and other resources. In addition, the characteristics of data sources and servers are changing at runtime. A traditional distributed query optimizer or centralized adaptive techniques is inadequate in this situation. In this paper,...
متن کاملA New Client-server Architecture for Distributed Query Processing a New Client-server Architecture for Distributed Query Processing
This paper presents the idea of \tuple bit-vectors" for distributed query processing. Using tuple bit-vectors, a new two-way semijoin operator called 2SJ++ that enhances the semijoin with an essentially \free" backward reduction capability is proposed. We explore in detail the beneets and costs of 2SJ++ compared with other semijoin variants, and its eeect on distributed query processing perform...
متن کاملAn intelligent query processing for distributed ontologies
0164-1212/$ see front matter 2009 Elsevier Inc. A doi:10.1016/j.jss.2009.06.008 * Corresponding author. Tel.: +82 42 350 3537; fax E-mail addresses: [email protected] (J. L (J.-H. Park), [email protected] (M.-J. Park) (C.-W. Chung), [email protected] (J.-K. Min). In this paper, we propose an intelligent distributed query processing method considering the characteristics of a distrib...
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: ACM Transactions on Database Systems
سال: 1986
ISSN: 0362-5915,1557-4644
DOI: 10.1145/6314.6460