Languages like Spanish and Arabic are spoken over a large geographic area. the people that speak these languages develop differences in accent, annotation and phonetic delivery. this leads to difficulty in standardiza...
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We propose in this paper an approach whose main objective is to detect disturbances that affect an electric power signal. the method allows us to locate the time occurrence of these disturbances. the signal processing...
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ISBN:
(纸本)9781467316583
We propose in this paper an approach whose main objective is to detect disturbances that affect an electric power signal. the method allows us to locate the time occurrence of these disturbances. the signal processing consists of determining two distributions that are based on the energy of the wavelet signal decomposition: the deviation distribution and the deformation distribution. theses distributions are a signature of the disturbance and are able to provide an identification of the type of the problem. the method has been developed using the analysis by the Discrete Wavelet Transform (DWT). the electrical signal is decomposed into several levels by DWT. the different waveforms resolution levels allows us to detect any deviations from the sane signal. the energy distributions data obtained in the first step will be used as feature vectors for training an artificial neural network (ANN) with multilayer perceptrons (MLPs) and support vector machines (SVMs) to classify the Power Quality Disturbance (PQD).
Events are particularly important pieces of knowledge, as they represent activities of special significance within an organisation: the automated recognition of events is of utmost importance. We present RTEC, an Even...
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Grade classification of seed cotton is a major problem that has an significant impact on the agricultural economy. According to characteristics like impurities, yellowness and brightness that extract from images of se...
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ISBN:
(纸本)9781467319751;9781467319768
Grade classification of seed cotton is a major problem that has an significant impact on the agricultural economy. According to characteristics like impurities, yellowness and brightness that extract from images of seed cotton, constructing classification model of seed cotton base on the least square method. Using support vector machine regression to come up with a well improved algorithm. After full learning, seed cotton classification accuracy satisfy the actual application needs.
In patternrecognition, feature selection is a quite important process for constructing practical systems. However, because there are many features as candidates to recognize object, it is difficult to select appropri...
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ISBN:
(纸本)9780769547633;9781467321389
In patternrecognition, feature selection is a quite important process for constructing practical systems. However, because there are many features as candidates to recognize object, it is difficult to select appropriate features for patternrecognition systematically. the previous research proposed a patternrecognition method using the ensemble system based on fuzzy classifier for multiple feature selection. However, this method can not apply for the problems with many input vectors because it takes a lot of time for learning when the number of the input vector increases. In this study, an attempt is made to overcome the problem by introducing ID3 (Iterative Dichotomizer 3) with classifiers consisting of many feature vectors. ID3 constructs a decision tree for multiple feature selection withthe results obtained from classifiers based on each feature. therefore, it is possible to select appropriate features applied many input vectors. Several benchmark problems are presented to demonstrate the efficiency and applicability of the proposed method.
this paper introduces a newly developed test system for structure inspection and evaluation of cement-based products by applying ultrasonic test with support vector machine (SVM) classifier. In other words, this paper...
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ISBN:
(纸本)9781467327435;9781467327428
this paper introduces a newly developed test system for structure inspection and evaluation of cement-based products by applying ultrasonic test with support vector machine (SVM) classifier. In other words, this paper represents a novel method based on SVM for defect detection, classification of number of defects, and identification of defect materials. Withthe system, pattern of ultrasonic waves for each case of specimen can be obtained from direct and indirect measurements. Machine learning algorithm called support vector machine and artificial neural network (ANN) are employed for classification and verification of the wave patterns obtained from different samples. By applying the system, the presence or absence of a defect in mortar can be identified. Moreover, the system can also classify the number of defects and identify the defect materials being inside the mortar. For classification, input features are extracted in different ways and the numbers of training sets are varied. Base on the results from SVM, the signals extracted in frequency domain gives better performance than time domain. Using a larger training set can give more satisfactory results. In this article, the methodology is explained and the classification results are discussed. the effectiveness of the developed test system is evaluated. Comparison of the classification results that obtained by between SVM and ANN classifiers is also demonstrated. this study shows that this technique based on patternrecognition has a high potential for practical inspection of concrete structure.
this volume features key contributions from the internationalconference on patternrecognition Applications and Methods, (ICPRAM 2012,) held in Vilamoura, Algarve, Portugal from February 6th-8th, 2012. the conference...
ISBN:
(纸本)9781461450757
this volume features key contributions from the internationalconference on patternrecognition Applications and Methods, (ICPRAM 2012,) held in Vilamoura, Algarve, Portugal from February 6th-8th, 2012. the conference provided a major point of collaboration between researchers, engineers and practitioners in the areas of patternrecognition, both from theoretical and applied perspectives, with a focus on mathematical methodologies. Contributions describe applications of patternrecognition techniques to real-world problems, interdisciplinary research, and experimental and theoretical studies which yield new insights that provide key advances in the field. this book will be suitable for scientists and researchers in optimization, numerical methods, computer science, statistics andfor differential geometers and mathematical physicists.
In this note we present our most recent advances in the automatic design of artificial neural networks (ANNs) and associative memories (AMs) for pattern classification and pattern recall. Particle Swarm Optimization (...
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In this paper we present a novel approach to the problem of understanding, monitoring, and controlling the machining process of composites materials. the approach is called Logical Analysis of Data (LAD). It is based ...
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the proceedings contain 67 papers. the topics discussed include: Bayesian image matting using infrared and color cues;salient pixels and dimensionality reduction for display of multi/hyperspectral images;SVM and haral...
ISBN:
(纸本)9783642312533
the proceedings contain 67 papers. the topics discussed include: Bayesian image matting using infrared and color cues;salient pixels and dimensionality reduction for display of multi/hyperspectral images;SVM and haralick features for classification of high resolution satellite images from urban areas;multi-model approach for multicomponent texture classification;simultaneous multispectral imaging and illuminant estimation using a stereo camera;kernel-based Laplacian smoothing method for 3D mesh denoising;embedded real-time video processing system on FPGA;edge preserving image fusion based on contourlet transform;selecting vision operators and fixing their optimal parameters values using reinforcement learning;a phase congruency based document binarization;methodology for acoustic characterization of a labial constraint in speech production;and nonlinear blind source separation applied to a simple bijective model.
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