Qualitative Knowledge Discovery
Qualitative Knowledge Discovery
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定性知识发现
DOI:
10.1007/978-3-540-88594-8_4
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
M. Finthammer
中科院分区:
文献类型:
--
作者:
Kern-Isberner;M. Thimm;M. Finthammer
Knowledge discovery and data mining deal with the task of finding useful information and especially rules in unstructured data. Most knowledge discovery approaches associate conditional probabilities to discovered rules in order to specify their strength. In this paper, we propose a qualitative approach to knowledge discovery. We do so by abstracting from actual probabilities to qualitative information and in particular, by developing a method for the computation of an ordinal conditional function from a possibly noisy probability distribution. The link between structural and numerical knowledge is established by a powerful algebraic theory of conditionals. By applying this theory, we develop an algorithm that computes sets of default rules from the qualitative abstraction of the input distribution. In particular, we show how sparse information can be dealt with appropriately in our framework. By making use of the duality between inductive reasoning and knowledge discovery within the algebraic theory of conditionals, we can ensure that the discovered rules can be considered as being most informative in a strict, formal sense.
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DOI:
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发表时间:
1991
期刊:
影响因子:
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作者:
P. Calabrese
通讯作者:
P. Calabrese
DOI:
--
发表时间:
2003
期刊:
Lecture Notes in Computer Science
影响因子:
--
作者:
Wolfram Burgard;T. Christaller;A. Cremers
通讯作者:
A. Cremers
DOI:
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发表时间:
2003
期刊:
Lecture Notes in Computer Science
影响因子:
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作者:
E. Börger;A. Gargantini;E. Riccobene
通讯作者:
E. Riccobene
DOI:
--
发表时间:
1991
期刊:
影响因子:
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作者:
I. Goodman;G. S. Rogers;M. Gupta;H. Nguyen
通讯作者:
H. Nguyen
DOI:
10.2307/2218424
发表时间:
1968
期刊:
The Philosophical Quarterly
影响因子:
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作者:
J. Hintikka;P. Suppes
通讯作者:
P. Suppes