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Dissemination of dynamic data on the Internet

DSpace at IIT Bombay

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Title Dissemination of dynamic data on the Internet
 
Creator RAMAMRITHAM, K
DEOLASEE, P
KATKAR, A
PANCHBUDHE, A
SHENOY, P
 
Description Dynamic data is data which varies rapidly and unpredictably. This kind of data is generally used in on-line decision making and hence needs to be delivered to its users conforming to certain time or value based application-specific requirements. The main issue in the dissemination of dynamic web data such as stock prices, sports scores or weather data is the maintenance of temporal coherency within the user specified bounds. Since most of the web servers adhere to the HTTP protocol, clients need to frequently pull the data depending on the changes in the data and user's coherency requirements. In contrast, servers that possess push capability maintain state information pertaining to user's requirements and push only those changes that are of interest to a user. These two canonical techniques have complementary properties. In pure pull approach, the level of temporal coherency maintained is low while in pure push approach it is very high, but this is at the cost of high state space at the server which results in a less resilient and less scalable system. Communication overheads in pull-based schemes are high as compared to push-based schemes, since the number of messages exchanged in the pull approach axe higher than in push based approach. Based on these observations, this paper explores different approaches to combining the two approaches so as to harness the benefits of both approaches.
 
Publisher SPRINGER-VERLAG BERLIN
 
Date 2011-10-23T13:20:12Z
2011-12-15T09:11:10Z
2011-10-23T13:20:12Z
2011-12-15T09:11:10Z
2001
 
Type Article; Proceedings Paper
 
Identifier DATABASES IN NETWORKED INFORMATION SYSTEMS, PROCEEDINGS,1966,173-187
3-540-41395-2
0302-9743
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15139
http://hdl.handle.net/100/1895
 
Source International Workshop on Databases in Networked Information Systems,AIZU WAKAMATSU, JAPAN,DEC 04-06, 2000
 
Language English