نتایج جستجو برای: rules discovery

تعداد نتایج: 256532  

2006
Agnieszka Dardzinska Zbigniew W. Ras

Action rules introduced in [12] and extended further to e-action rules [21] have been investigated in [22], [13], [20]. They assume that attributes in a database are divided into two groups: stable and flexible. In general, an action rule can be constructed from two rules extracted earlier from the same database. Furthermore, we assume that these two rules describe two different decision classe...

2009
Zbigniew W. Ras Li-Shiang Tsay Agnieszka Dardzinska

One of the main goals in Knowledge Discovery is to find interesting associations between values of attributes, those that are meaningful in a domain of interest. The most effective way to reduce the amount of discovered patterns is to apply two interestingness measures, subjective and objective. Subjective measures are based on the subjectivity and understandability of users examining the patte...

1996
Yongjian Fu Robert F. Hadley Jiawei Han

With the widespread computerization in business, government, and science, the e cient and e ective discovery of interesting information from large databases becomes essential. Data mining or Knowledge Discovery in Database (KDD) emerges as a solution to the data analysis problems faced by many organizations. Previous studies on data mining have been focused on the discovery of knowledge at a si...

2006
Zbigniew W. Ras Agnieszka Dardzinska

A new strategy for discovering action rules (or interventions) is presented in this paper. The current methods [14], [12], [8] require to discover classification rules before any action rule can be constructed from them. Several definitions of action rules [8], [13], [9], [3] have been proposed. They differ in the generality of their classification parts but they are always constructed from cer...

1984
Mark Johnson

Acquisi t ion of phonological sys t ems can be insightfully s tudied in t e rms of discovery procedures. This paper describes a discovery procedure, implemented in Lisp, capable of determining a set of ordered phonological rules, which may be in opaque contexts~ from a set of surface forms arranged in paradigms. 1. I N T R O D U C T I O N For generat ive g rammar i ans , such as Chomsky (1965),...

2009
Sashikiran Challa David J. Wild Ying Ding Qian Zhu

There are several publicly available repositories of chemical compounds and their biological information, like PubChem Compound, PubChem BioAssay, Drug Bank. Presenting all the information about a particular compound and also the related information about all the compounds similar to that particular compound helps scientists make a great progress in the drug discovery. In this paper we present ...

2016
Hao Song Meelis Kull Peter A. Flach Georgios Kalogridis

Subgroup Discovery is the process of finding and describing sufficiently large subsets of a given population that have unusual distributional characteristics with regard to some target attribute. Such subgroups can be used as a statistical summary which improves on the default summary of stating the overall distribution in the population. A natural way to evaluate such summaries is to quantify ...

2005
Fadl Mutaher Ba-Alwi Kamal Kant Bharadwaj

In this paper a novel algorithm is proposed that integrates the process of fuzzy hierarchy generation and rule discovery for automated discovery of Production Rules with Fuzzy Hierarchy (PRFH) in large databases. A concept of frequency matrix (Freq) introduced to summarize large database that helps in minimizing the number of database accesses, identification and removal of irrelevant attribute...

2006
Satoshi Hori Mizuho Sasaki Hirokazu Taki

There is a keen demand for a method of sharing better work practices in a factory because better work practices are the key to improving productivity. We have developed a system that can measure a worker's motion and automatically generate a manual that describes his movements. This system employs motion study as used in Industrial Engineering to identify the important steps in a job, and it ha...

Journal: :Natural Language Engineering 2001
Dekang Lin Patrick Pantel

One of the main challenges in question-answering is the potential mismatch between the expressions in questions and the expressions in texts. While humans appear to use inference rules such as “X writes Y” implies “X is the author of Y” in answering questions, such rules are generally unavailable to question-answering systems due to the inherent difficulty in constructing them. In this paper, w...

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