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Functional Properties of Information Filtering
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BibTeX
@MISC{Sawai_functionalproperties,
author = {Rie Sawai and Masahiko Tsukamoto and Yin-huei Loh and Tsutomu Terada and Shojiro Nishio},
title = {Functional Properties of Information Filtering},
year = {}
}
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Abstract
In recent years, due to the increasing popularization of data broadcasting, the volume and variety of data being broadcast are rapidly increasing. In this environment, as it is difficult for users to search for information from a large amount of broadcast data, there is an increasing demand for filtering techniques that automatically extract only the necessary data. Consequently, a number of filtering methods have been proposed. However, mathematical representation of these methods does not exist. Thus,itisnot possible to qualitatively evaluate various filtering methods, optimize processing methods in filtering, or design a declarative language for filtering processes. In this paper, we define filtering as a function, and express the properties of filtering methods by the constraints satisfied by this function. By showing the inclusion relation of constraints representing the properties of filtering, we clarify the relationship between the properties of filtering. Using the framework proposed in this paper, we are able to categorize the actual filtering systems. By applying the appropriate processing method for each category according to its properties, more efficient filtering systems can be achieved. Permission to copy without fee all or part of this material is grantedprovided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and noticeis given that copying is by permission of the Very Large Data Base Endowment. Tocopy otherwise, or to republish, requires a fee and/or special permission from the Endowment. Proceedings of the 27th VLDB Conference, Roma, Italy,2001 1
Keyphrases
information filtering functional property mathematical representation declarative language 27th vldb conference date appear data broadcasting vldb copyright notice large data base endowment recent year necessary data inclusion relation special permission direct commercial advantage appropriate processing method broadcast data large amount actual filtering system
