Title :
A priority-based transmission protocol for congested networks supporting incremental computations
Author :
Cannataro, Mario ; Curci, Walter ; Giglio, Maurizio
Author_Institution :
Calabria Univ., Italy
Abstract :
Many fields of human activity produce data at an increasing rate, that have to be analysed in an effective and timely way, both locally at the data sources and globally, where decisions have to be taken. Very often in distributed applications, delays originate from the limited network bandwidth or temporary network congestions. To cope with these problems and to satisfy the requirements of online interactive applications (timely availability of data whose quality could eventually be reduced), new compression algorithms and transmission protocols that can trade off the exactness of results against their timeliness, have to be developed. This paper presents a priority-based data transmission protocol for sending large volumes of data (data cubes) over congested networks, that allows the incremental implementation of OLAP applications. A wavelet-based lossy compression algorithm that is the core of the transmission protocol is also presented
Keywords :
data compression; data mining; delays; losses; telecommunication congestion control; telecommunication networks; transport protocols; wavelet transforms; OLAP applications; congested networks; data analysis; data compression algorithms; data cubes; data quality; delays; distributed applications; incremental computations; limited network bandwidth; online interactive applications; priority-based data transmission protocol; result exactness; result timeliness; temporary network congestion; timely data availability; wavelet-based lossy compression algorithm; Compression algorithms; Computer networks; Data communication; Data mining; Data models; Decision support systems; Multidimensional systems; Propagation losses; Protocols; Wavelet transforms;
Conference_Titel :
Information Technology: Coding and Computing, 2001. Proceedings. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7695-1062-0
DOI :
10.1109/ITCC.2001.918826