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Feature selection represents a key stage in electroencephalogram (EEG) classifications, because these applications involve numerous, high-dimensional samples. In recent literature, a multitude of supervised embedded feature selection procedures has been proposed. Regardless if they are configured as Single Objective (SOO) or Multi-Objective Optimizations (MOO), the embedded methods assess the quality...
In this paper, we present a proposed algorithm to classify brain MRI as tumor-free or tumor present. For computing difference between normal and abnormal MR images, a set of features is calculated. The number of features of the original feature set is reduced by rough set based K-means algorithm and classification of the dataset into tumor-free or tumor-present category has been done by support vector...
Kinship verification from facial images is a challenging task in computer vision. The majority of recent verification algorithms concatenate all features of patches in facial image to build the final feature representation, which implicitly takes every facial part into account for kinship verification. However, it is questionable by considering all face regions since certain facial parts such as the...
In order to improve the performance of the base classifier in the process of AdaBoost algorithm and simplify the complexity of the whole ensemble learning system, this paper presents a SVM ensemble method based on an improved iteration process of Adaboost algorithm. The improved Adaboost algorithm is added with methods of adding sample selection and feature selection in its iterative process in order...
The goal of this paper is to determine the object a person visually perceives by analyzing BOLD fMRI data. We use an fMRI dataset and analyze the effects of univariate and multivariate feature selection techniques. By performing dimensionality reduction with Principal Component Analysis (PCA), training with a Support Vector Classifier without a kernel and appropriate smoothing, we obtained a 93.16%...
Cancer diagnosis is one of the emerging applications in microarray gene expression data. Feature selection plays a crucial role because of the huge dimensionality and less training and testing samples. Finding a small subset of significant genes from a large set of gene expression data is a challenging task. This paper presents the usage of genetic algorithm as a tool to determine the informative...
Web applications hosted on the Internet are naturally exposed to a variety of attacks and constantly probed by hackers for vulnerabilities. SQL Injection Attack (SQLIA) has been a major security threat on web applications since over 15 years. Detecting SQLIA at runtime is a challenging problem because of extreme heterogeneity of the attack vectors. This paper explores application of node centrality...
Chinese text categorization, which is a key technology of massive Chinese text data processing, has been applied to information retrieval, document management, text filtering, etc. However, the categorization accuracy has been the major difficulties faced by the application upgrade. To improve the performance of the Chinese text categorization, feature selection, as an important and indispensable...
Forecasting electricity price allows market participants to make informed and sound decisions. Selecting the best training variables is often involved in forecasting in order to obtain optimal prediction. Support Vector Regression (SVR) provides an effective method to fit data and find minimal risk slack variables around a fit line. The best fit depends on the selected input feature set and the tuning...
Regarding a growing interest into exploiting hyperspectral images in the plethora of applications such as chemical material identification, agricultural crop mapping, military target detection and etc., myriad approaches have been introducing to interpret and analyze such data. In this paper, I am going to propose a novel method using the combination of two conventional method. Firstly, I use an evolutionary...
In order to solve the problem of traditional methods having low accuracy in recognizing rolling bearings' faults and to reduce time in building a training model, this paper puts forward a method of recognizing faults based on wavelet packet transformation and PCA-PSO-MSVM. First of all, we extracted the energy values after all kinds of faulty signals have been transformed through wavelet packet, and...
Border Gateway Protocol (BGP) anomalies affect network operations and, hence, their detection is of interest to researchers and practitioners. Various machine learning techniques have been applied for detection of such anomalies. In this paper, we first employ the minimum Redundancy Maximum Relevance (mRMR) feature selection algorithms to extract the most relevant features used for classifying BGP...
In this paper, we are interested in the Web service classification. We propose a classification method that first uses a stochastic local search (SLS) meta-heuristic for feature selection then call the Support Vector Machine (SVM) to do the classification task. The proposed method that combines SLS and SVM for Web service classification is validated on the QWS Dataset to measure its performance. We...
Automatic recognition of multiple acoustic events is an interesting problem in machine listening that generalizes the classical speech/non-speech or speech/music classification problem. Typical audio streams contain a diversity of sound events that carry important and useful information on the acoustic environment and context. Classification is usually performed by means of hidden Markov models (HMMs)...
In this paper we present an empirical evaluation of various techniques for feature selection that are applicable for analysis of funding decisions - whether of not to award funding to a specific scientific project. Input data are a set of review forms (questionnaires), filled in by domain experts, with final decisions of the expert committee about project funding. The data was provided by the Russian...
This study is carried out on application of different machine learning techniques for prediction of features using bioinformatics data such as that of cancer. The prediction process is undertaken based on feature extraction and then on feature selection process. After selecting the relevant features, machine learning techniques like Support vector machine (SVM), Extreme learning machine (ELM) are...
In this paper, we propose a feature selection and representation combination method to generate discriminative features for speech emotion recognition. In feature selection stage, a Multiple Kernel Learning (MKL) based strategy is used to obtain the optimal feature subset. Specifically, features selected at least n times among 10-fold cross validation are collected to build a new feature subset named...
Expressions are commonly presented through the motions of different facial regions, thus the selection of discriminative features from prominent regions is crucial to the expression recognition. This paper proposes a novel method for facial expression recognition by exploring the most salient regions for each expression. The main contribution of this paper is using the complete feature set of expressions...
Based on the methods of the traditional topic-based text classification, machine learning method was performed to the coarse-grained sentiment classification of reviews. Sentiment classification involved a lot of problems. In this paper, the sentiment Vector Space Model (s-VSM) was used for text representation to solve data sparseness. In addition, the critical issues of the sentiment classification,...
Video Affective Content Analysis is an active research area in computer vision. Live Streaming video has become one of the modes of communication in the recent decade. Hence video affect content analysis plays a vital role. Existing works on video affective content analysis are more focused on predicting the current state of the users using either of the visual or the acoustic features. In this paper,...
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