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A. Choudhury

Bio: A. Choudhury is an academic researcher from Brunel University London. The author has contributed to research in topics: Implicant & Boolean network. The author has an hindex of 1, co-authored 3 publications receiving 2 citations.

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Journal ArticleDOI
TL;DR: In this paper, a simple and straightforward procedure for finding absolute minimal third-order expressions (in the sum-ofproduct-of-sum) of a special class of Boolean functions called unate functions is suggested.
Abstract: A simple and straightforward procedure for finding absolute minimal third-order expressions (in the ‘ sum-of-product-of-sum’ forms) of a special class of Boolean functions called unate functions is suggested in the paper. The central idea developed through the procedure involves a decomposition of the assigned Boolean function first into a group of sub-functions called maximal uniliteral sub-functions (MTJL's) each of which is realizable in a minimal second-order ‘ product-of-sum ’ form and then a selection of an appropriate sub-set of these maximal uniliteral sub-functions or MUL's (or their sub-functions) in order to cover all the prime implicants of the function minimally.

2 citations

Book ChapterDOI
A. Choudhury1, Warren Hopkins1, Saroj Das1, Ian R. Kill1, Quan Long1 
01 Jan 2010
TL;DR: The aim of this study was to compare carotid plaque morphology between ruptured and non-ruptured plaques to improve understanding about the risk of human arterial plaque rupture.
Abstract: The sudden rupture of a vulnerable arterial plaque is a major cause of cerebral ischemic event, and is normally triggered by unfavorable plaque morphology The aim of our study was to compare carotid plaque morphology between ruptured and non-ruptured plaques to improve our understanding about the risk of human arterial plaque rupture

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Journal ArticleDOI
TL;DR: The second-order expressions of Boolean functions can have either sum-ofproduct or product-of-sum forms, and the concept of coincidence between the p terms of the function is introduced in this article.
Abstract: The second-order expressions of Boolean functions can have either sum-of-product or product-of-sum forms For a Boolean function specified in the irredundant sum-of-product form as the disjunction of a number of prime implicants or p terms, groups of these p terms can sometimes be more economically realized in the minimal product-of-sum forms than in the sum-of-product forms To know whether a group of p terms in the irredundant sum-of-product form of the function has a more economic realization in the product-of-sum form, the concept of coincidence between the p terms of the function is introduced in the paper and a number of interesting properties of the function in relation to coincidence are established The coincidence between a pair of p terms in a function is defined as the number of literals occurring as mutually common in their algebraic representations It is next shown that the study of the properties of Boolean functions in relation to coincidence also aids in readily obtaining the economic th
Journal ArticleDOI
TL;DR: In this paper, a technique for obtaining the product of sum expression from the sum of product expression of a Boolean function is presented, where a tabular representation is made with the product terms and the variables present in the function specified in the sum-of-product form and appropriate rows of the table are combined to give different sum terms.
Abstract: A technique has been developed in this article for obtaining the ‘ product of sum ’ expression from the ‘ sum of product ’ expression of a Boolean function. In this technique, first a tabular representation is made with the product terms and the variables present in the function specified in the ‘ sum of product ’ form and then appropriate rows of the table are combined to give different sum terms. The idea of the technique has also been extended for obtaining the third-order minimal expression of a Boolean function.