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Computational Analysis and Application of Regression Model to Screen a 32 Compound Dataset as COX-2 inhibitors using Modified k-means Algorithm
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 151 - Number 4 |
| Year of Publication: 2016 |
| Authors: Chunduru Madhava Rao, Yesu Babu Adimulam |
10.5120/ijca2016911742
|
Chunduru Madhava Rao, Yesu Babu Adimulam . Computational Analysis and Application of Regression Model to Screen a 32 Compound Dataset as COX-2 inhibitors using Modified k-means Algorithm. International Journal of Computer Applications. 151, 4 ( Oct 2016), 28-34. DOI=10.5120/ijca2016911742
Abstract
Selective inhibition of COX-2 provided a new class of anti inflammatory, analgesic, and antipyretic drugs with significantly reduced side effects. It has been reported that inhibiting COX-2 could also be an important strategy for preventing or treating a number of cancers. We report a modified k-means clustering algorithm to cluster groups of compounds obtained from regression analysis along with few compounds which were non-tested against COX-2 and screened them using regression model. The regression model due to its high predictive ability can be utilized as an alternative aid to the costly and time consuming experiments for recognizing and determining compounds with high COX-2 binding affinity. Hence, a group of new derivatives from literature are subjected to screening utilizing the produced model. A set of 32 compounds with pyrazole ring as main nucleus was selected from a published review paper. We present a modification of k-means algorithm that efficiently searches data to cluster points by computing sum of squares within each cluster which makes the program to select the most promising subset of classes for clustering. From a set of 32 compounds, only the top 5 compounds are combined with 58 molecule data set to perform cluster analysis. From the analysis it is evidenced that k-means clustering algorithm is able to group data objects of all molecules based on the 3 centroids provided and all top 5 compounds appear to be centred on one spade whereas Celecoxib appeared in another cluster.
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