Logical analysis of data (LAD) is an important subfield of supervised machine learning and data mining. It is a methodology
for data analysis, which uses concepts of optimization, combinatorics and Boolean functions. LAD is a binary classification that used for
Boolean data with high explanatory power. Because patterns are the most important building blocks in LAD, they must be selected
carefully. One of the main drawbacks in LAD, which needs to be addressed, is the quality of the generated patterns and extraction of
positive and negative patterns. By these quality patterns, we can classify new observations with high accuracy. The proposed
methodology developed to address this issue. It studied the LAD method, its refinements, and define quality measures for pattern
generation. Then, contribute to improving the pattern selection procedures using an optimization technique called Mixed Integer-Linear
Programs (MILP) and the General Algebraic Modelling System (GAMS) tools using MIP solver. Using this technique for generating an
optimized set of patterns aims at selecting the most important patterns to improve pattern quality, and get very strong results with a high
accuracy. Experiments carried out on the SPECT dataset, it shows the efficiency of the proposed method in regards to minimize the
number of generated patterns and increase the accuracy of the classification model.

Published In:IJCSN Journal Volume 7, Issue 6

Date of Publication : December 2018

Pages : 349-360

Figures :17

Tables : 01

Abdulkareem Owehan Alresheedi :
Currently is a Master student
at Qassim University in Computer college, Computer Science
department. Alresheedi received his Bachelor degree in computer
Science in 2004. From 2004 until now, I joined the public sector as
the manager of the Information Technology management. My
research interests lie in data mining, machine learning algorithms,
advance optimization techniques and big data.

Mohammed Abdullah Al-Hagery :
received his B.Sc in
Computer Science from the University of Technology in
Baghdad Iraq-1994. He got his MSc in Computer Science from
the University of Science and Technology Yemen-1998. Al-
Hagery finished his PhD in Computer Science and in
Information Techonlogy, (Software Engineering) from the
Faculty of Computer Science and IT, University of Putra
Malaysia (UPM), 2004. He was a head of the Computer Science
Department at the college of Science and Engineering, USTY,
Sana'a from 2004 to 2007. From 2007 to this date, he is a staff
member at the Faculty of Computer, Department of Computer
Science, Qassim University in KSA. He published more than 15
papers in international journals. Dr Al-Hagery was appointed a
head of the Research Centre at the Computer College, Qassim
University, KSA from September 2012 to October 2018.

Logical Data Analysis, Optimization Techniques, Patterns Reduction, Machine Learning, Classification Accuracy, Set
Covering Problem

This paper introduced voluble contribution regarding
the optimization and selection of high-quality patterns. The
results show a high efficiency to improve the quality
patterns selection procedures and helps researchers in
future for the continued development of optimization
techniques related to classification problems.
1) For each pattern, calculate and extract the main criteria
that help in pattern selection procedures. For that, R codes
are developed to extract the hidden information (patterns)
from binary datasets and its characteristics such as Degree,
Homogeneity, and a number of positive (negative) covered
observations and show all index of all covered
observations.

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