Paper Info
Title
A Cache-Based Semi-Stream Join To Deal With Unmatched Stream Data
Abstract
In Data Stream Management System (DSMS) semi-stream processing has become a popular area of research due to the high demand of applications (e.g. real-time data warehousing) for up-to-date information. One common operation in semi-stream processing is joining of incoming stream with disk-based master data. A recent algorithm called CACHEJOIN was proposed to implement this join operation. However, CACHEJOIN loads entire stream data into join module and consumes all its resources without eliminating those stream tuples which have no relevant tuples in disk-based master data. Due to this, the performance of CACHEJOIN remains suboptimal. In this paper we present a revised version of CACHEJOIN called Improved CACHEJOIN which removes this limitation. This reduces the processing cost for the new algorithm and as a consequence, the new algorithm outperforms existing CACHEJOIN significantly. In order to quantify the performance differences, we compare both algorithms using both synthetic and real datasets with a known skewed distribution. We also present the cost model for our new algorithm.
Year
DOI
Venue
2015
10.1007/978-3-319-19548-3_5
DATABASES THEORY AND APPLICATIONS
Keywords
Field
DocType
Unmatched stream data, Semi-Stream joins, Performance optimization, Data transformation
Data warehouse,Data stream management system,Data mining,Computer science,Tuple,Cache,Master data,Stream data,Database
Conference
Volume
ISSN
Citations 
9093
0302-9743
0
PageRank 
References 
Authors
0.34
9
3
Name
Order
Citations
PageRank
M. Asif Naeem110219.73
Imran Sarwar Bajwa28722.31
Noreen Jamil3126.01