نتایج جستجو برای: feature selection technique

تعداد نتایج: 1099307  

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2020

2009
AOUATIF AMINE ALI EL AKADI MOHAMMED RZIZA DRISS ABOUTAJDINE

The dimensionality of existing data make it difficult to deploy any information to identify features that discriminate between the classes of interest. Feature selection involves reducing the number of features, removes irrelevant, noisy and redundant data without significantly decreasing the prediction accuracy of the classifier. An efficient feature selection and classification technique for ...

Journal: :international journal of smart electrical engineering 2012
sepideh araban fardad farokhi kaveh kangarloo

detecting faces in cluttered backgrounds and real world has remained as an unsolved problem yet. in this paper, by using composition of some kind of independent features and one of the most common appearance based approaches, and multilayered perceptron (mlp) neural networks, not only some questions have been answered, but also the designed system achieved better performance rather than the pre...

2012
V. Arul Kumar

Feature Selection is the process of selecting the momentous feature subset from the original ones. This technique is frequently used as a preprocessing technique in data mining. In this study, a new feature selection algorithm is proposed and is called Modified Fisher Score Principal Feature Analysis (MFSPFA). The new algorithm is developed by combining the proposed Modified Fisher Score (MFS) ...

2008
Yvan Saeys Thomas Abeel

Robustness of feature selection techniques is a topic of recent interest, especially in high dimensional domains with small sample sizes, where selected feature subsets are subsequently analysed by domain experts to gain more insight into the problem modelled. In this work, we investigate the robustness of various feature selection techniques, and provide a general scheme to improve robustness ...

Journal: :Neurocomputing 2010
Qinghua Hu Xunjian Che Lei Zhang Daren Yu

Feature selection is considered to be an important preprocessing step in machine learning and pattern recognition, and feature evaluation is the key issue for constructing a feature selection algorithm. In this work, we propose a new concept of neighborhood margin and neighborhood soft margin to measure the minimal distance between different classes. We use the criterion of neighborhood soft ma...

Steel consumption is a critical factor affecting pricing decisions and a key element to achieve sustainable industrial development. Forecasting future trends of steel consumption based on analysis of nonlinear patterns using artificial intelligence (AI) techniques is the main purpose of this paper. Because there are several features affecting target variable which make the analysis of relations...

2014
Mitushi Modi Swati Patel

Data mining is a form of knowledge discovery required for solving problems in a specific domain. Classification is a technique used for discovering class labels of unknown data. Different methods for classification exists like bayesian, decision trees, rule based, neural networks etc. Before applying any mining technique, irrelevant and redundant features needs to be removed. Filtering is done ...

2005
Sofia Paniagua Rivera Héctor Jiménez-Salazar David Pinto

The difficulty of obtaining tagged corpora in order to perform Word Sense Disambiguation has led to diverse strategies. Clustering methods may be used as an initial step to discover regularities on instances, i.e. contexts of ambiguous words. In this work we evaluate a sense clustering method with a novel feature selection phase over Senseval-2 Spanish collection. The feature selection techniqu...

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