A Rough Set Theory Approach for Rule Generation and Validation Using RSES

2016 ◽  
Vol 3 (1) ◽  
pp. 55-70 ◽  
Author(s):  
Hemant Rana ◽  
Manohar Lal

Despite significant progress in e-learning technology over previous years, in view of huge sizes of data and databases, efficient knowledge extraction techniques are still required to make e-learning effective tool for delivery of learning. Rough set theory approach provides an effective technique for extraction of knowledge out of massive data. In order to provide effective support to learners, it is essential to know individual style of learning for each learner. For determining learning style of each learner, one is required to extract essentials of style of learning from a large number of parameters including academic background, profession, time available etc. In such scenario, rough theory proves a useful tool. In this paper, a rough set theory approach is proposed for determining learning styles of learners efficiently, so that based on the style, a learner may be provided learning support on the basis of requirement of the learner. These is achieved by eliminating redundant and ambiguous data and by generating reduct set, core set and rules from the given data. The results of this study are validated through RSES software by using same rough set analysis.

Author(s):  
Joachim Petit ◽  
Nathalie Meurice ◽  
José Luis Medina-Franco ◽  
Gerald M. Maggiora

Extracting knowledge through the machine learning techniques in general lacks in its predictions the level of perfection with minimal error or accuracy. Recently, researchers have been enjoying the fruits of Rough Set Theory (RST) to uncover the hidden patterns with its simplicity and expressive power. In RST mainly the issue of attribute reduction is tackled through the notion of ‘reducts’ using lower and upper approximations of rough sets based on a given information table with conditional and decision attributes. Hence, while researchers go for dimension reduction they propose many methods among which RST approach shown to be simple and efficient for text mining tasks. The area of text mining has focused on patterns based on text files or corpus, initially preprocessed to identify and remove irrelevant and replicated words without inducing any information loss for the classifying models later generated and tested. In this current work, this hypothesis are taken as core and tested on feedbacks for elearning courses using RST’s attribution reduction and generating distinct models of n-grams and finally the results are presented for selecting final efficient model


2020 ◽  
Vol 1529 ◽  
pp. 052048
Author(s):  
Touhid Mohammad Hossain ◽  
Junzo Wataada ◽  
Maman Hermana ◽  
Izzatdin A Aziz

2018 ◽  
Vol 5 (1) ◽  
pp. 71-84 ◽  
Author(s):  
C. Wafo Soh ◽  
L. L. Njilla ◽  
K. K. Kwiat ◽  
C. A. Kamhoua

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