نتایج جستجو برای: feature subset selection algorithm

تعداد نتایج: 1279965  

2012
Alok Sharma Seiya Imoto Satoru Miyano

We propose a new filter based feature selection algorithm for classification based on DNA microarray gene expression data. It utilizes null space of covariance matrix for feature selection. The algorithm can perform bulk reduction of features (genes) while maintaining the quality information in the reduced subset of features for discriminative purpose. Thus, it can be used as a pre-processing s...

Journal: :Advances in parallel computing 2021

High dimensional data analytics is emerging research field in this digital world. The gene expression microarray data, remote sensor medical image, video are some of the examples high data. Feature subset selection challenging task for such To achieve diversity and accuracy with important aspect research. reduce time complexity parallel stepwise feature approach adopted paper. Our aim to enhanc...

2014
J. Divya B. Lalitha

In the high dimensional data set having features selection involves identifying a subset of the most useful features that produce compatible results as the original entire set of features. A fast algorithm may be evaluated from both the ability concerns the time required to find a subset of features and the value is required to the quality of the subset of features. Fast clustering based featur...

2012
N. Valliammal S. N. Geethalakshmi

This paper describes an optimal approach for feature subset selection to classify the leaves based on Genetic Algorithm (GA) and Kernel Based Principle Component Analysis (KPCA). Due to high complexity in the selection of the optimal features, the classification has become a critical task to analyse the leaf image data. Initially the shape, texture and colour features are extracted from the lea...

2011
S. P. Rajagopalan

In this paper a feature selection algorithm CSSFFS (Constrained search sequential floating forward search) based on SVM is proposed for detecting breast cancer. It is a greedy algorithm with search strategy of constrained search. The aim of this algorithm is to achieve a feature subset with minimal BER (Balanced error rate). This is a hybrid algorithm with the combination of filters and wrapper...

2014
Jing Yang Dengju Yao Xiaojuan Zhan Xiaorong Zhan

Disease risk prediction is an important task in biomedicine and bioinformatics. To resolve the problem of high-dimensional features space and highly feature redundancy and to improve the intelligibility of data mining results, a new wrapper method of feature selection based on random forest variables importance measures and support vector machine was proposed. The proposed method combined seque...

2014
K. Sarojini

Feature subset selection plays an important role in data mining and machine learning applications. The main aim of feature subset selection is reducing dimensionality by removing irrelevant and redundant features and improving classification accuracy. This paper presents a supervised feature selection method called as Extended Fuzzy Absolute Information Measure (EFAIM) for different classifiers...

Journal: :Inf. Process. Manage. 2007
Zheng-Yu Niu Dong-Hong Ji Chew Lim Tan

This paper presents a cluster validation based document clustering algorithm, which is capable of identifying an important feature subset and the intrinsic value of model order (cluster number). The important feature subset is selected by optimizing a cluster validity criterion subject to some constraint. For achieving model order identification capability, this feature selection procedure is c...

1999
David W. Opitz

The traditional motivation behind feature selection algorithms is to find the best subset of features for a task using one particular learning algorithm. Given the recent success of ensembles, however, we investigate the notion of ensemble feature selection in this paper. This task is harder than traditional feature selection in that one not only needs to find features germane to the learning t...

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