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- W4231358885 abstract "Biological data is prone to grow exponentially, which consumes more resources, time and manpower. Parallelization of algorithms could reduce overall execution time. There are two main challenges in parallelizing computational methods. (1) Biological data is multi-dimensional in nature. (2). Parallel algorithms reduce execution time, but with the penalty of reduced prediction accuracy. This research paper targets these two issues and proposes the following approaches. (1) Vertical partitioning of data along feature space and horizontal partitioning along samples in order to ease the task of data parallelism. (2) Parallel Multilevel Feature Selection (M-FS) algorithm to select optimal and important features for improved classification of cancer sub-types. The selected features are evaluated using parallel Random Forest on Spark, compared with previously reported results and also with the results of sequential execution of same algorithms. The proposed parallel M-FS algorithm was compared with existing parallel feature selection algorithms in terms of accuracy and execution time. The results reveal that parallel multilevel feature selection algorithm improved cancer classification resulting into prediction accuracy ranging from ∼85% to ∼99% with very high speed up in terms of seconds. On the other hand, existing sequential algorithms yielded prediction accuracy of ∼65% to ∼99% with execution time of more than 24 hours." @default.
- W4231358885 created "2022-05-12" @default.
- W4231358885 date "2008-07-01" @default.
- W4231358885 modified "2023-09-24" @default.
- W4231358885 title "Conference photo" @default.
- W4231358885 doi "https://doi.org/10.1016/j.cpc.2008.02.006" @default.
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