Contamination grades assessment is the important content for the online monitoring system of insulator leakage current (LC). the difficult of assessment is the nonlinear relationship between the electric character var...
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ISBN:
(纸本)9781424427994
Contamination grades assessment is the important content for the online monitoring system of insulator leakage current (LC). the difficult of assessment is the nonlinear relationship between the electric character variables of the LC, the environment factors and the contamination condition of insulator surface. In this paper, based on laboratory simulation experiments and field data, the parameters of support vector machine (SVM) is optimized by using particle swarm optimization (PSO) arithmetic, then the SVM patternrecognition model of assessment of the contamination grades is constructed. the method takes advantages of the minimum structure risk of SVM and the quickly globally optimizing ability of particle swarm, and the mapping relation between the root mean square (R.M.S.) of LC, the peak value of the LC, the amplitude and times of the pulses of the LC, temperature and humidity of environment and contamination grades may be setup quickly by learning from sample data. Experiment results show that the contamination condition assessment method is effective. then the insulator contamination condition online detection system is developed based on the assessment model.
Mining bilingual data (including bilingual sentences and terms) from the Web can benefit many NLP applications, such as machine translation and cross language information retrieval. In this paper, based on the observa...
ISBN:
(纸本)9781932432466
Mining bilingual data (including bilingual sentences and terms) from the Web can benefit many NLP applications, such as machine translation and cross language information retrieval. In this paper, based on the observation that bilingual data in many web pages appear collectively following similar patterns, an adaptive pattern-based bilingual data mining method is proposed. Specifically, given a web page, the method contains four steps: 1) preprocessing: parse the web page into a DOM tree and segment the inner text of each node into snippets; 2) seed mining: identify potential translation pairs (seeds) using a word based alignment model which takes both translation and transliteration into consideration; 3) patternlearning: learn generalized patterns withthe identified seeds; 4) pattern based mining: extract all bilingual data in the page using the learned patterns. Our experiments on Chinese web pages produced more than 7.5 million pairs of bilingual sentences and more than 5 million pairs of bilingual terms, both with over 80% accuracy.
Two methods of patternrecognition are introduced in this paper: Unsupervised learning algorithm-fuzzy clustering method and supervised learning algorithm -neural network. the patternrecognition becomes failure patte...
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ISBN:
(纸本)9780769532783
Two methods of patternrecognition are introduced in this paper: Unsupervised learning algorithm-fuzzy clustering method and supervised learning algorithm -neural network. the patternrecognition becomes failure patternrecognition if it is used in the fault diagnosis of the machine. Both merits and shortages of these two methods are discussed through a specific example in the mechanical faults diagnosis.
Network intrusion detection aims at distinguishing the attacks on the Internet from normal use of the Internet. this is a typical problem of the classfication,so intrusion detection(ID) can be seen as a pattern recogn...
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ISBN:
(纸本)9780769533223
Network intrusion detection aims at distinguishing the attacks on the Internet from normal use of the Internet. this is a typical problem of the classfication,so intrusion detection(ID) can be seen as a patternrecognition problem. In this paper, In this paper, we build the intrusion detection system using Adaboost, a prevailing machinelearning algorithm, construction detection classification. In the algorithm, decision RBF neural network are used as weak classifiers. For the training sets is multi-attribute non-linear and massive, we use patternrecognition method of non-linear datadimension reduction algorithm-Isomap algorithm to feature extraction and to improve the speed and training for the handling of classified speed In the feature extraction after the feature of the dimension and Adaboost algorithm training rounds, were studied and experimented. Finally, the experiment proved that Isomap and Adaboost combination of testing the effectiveness of the mothod.
recognition of specific functionally-important DNA sequence fragments is considered one of the most important problems in bioinformatics. One type of such fragments are promoters, Le., short regulatory DNA sequences l...
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ISBN:
(纸本)9781424417391
recognition of specific functionally-important DNA sequence fragments is considered one of the most important problems in bioinformatics. One type of such fragments are promoters, Le., short regulatory DNA sequences located upstream of a gene. Detection of promoters in DNA sequences is important for successful gene prediction. In this paper, a machinelearning method, called Support Vector machine (SVM), is used for classification of DNA sequences and promoter recognition. For optimal classification, 11 rules for mapping of DNA sequences into binary SVM feature space are analyzed. Classification is performed using a power series kernel function. Kernel parameters are optimized using a modification of the Nelder-Mead (downhill simplex) optimization method. the results of classification for drosophila and human sequence datasets are presented.
this paper focuses on neural networks with complex-valued (CV) neurons as well as on selected aspects of neural networks learning, pruning and rule extraction. CV neurons can be used as versatile substitutes in real-v...
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ISBN:
(纸本)9781424417391
this paper focuses on neural networks with complex-valued (CV) neurons as well as on selected aspects of neural networks learning, pruning and rule extraction. CV neurons can be used as versatile substitutes in real-valued perceptron networks. learning of CV layers is discussed in context of traditional multilayer feedforward architecture. Such learning is derivative-free and it usually requires networks of reduced size. Selected examples and applications of CV-networks in bioinformatics and patternrecognition are discussed. the paper also covers specialized learning techniques for logic rule extraction. Such techniques include learning with pruning, and can be used in expert systems, and other applications that rely on models developed to fit measured data.
Contemporary machine intelligence is far from realizing prominent hallmarks of human understanding and consciousness. the primary shortcoming of current methods can be attributed to the difficulty or implausibility of...
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ISBN:
(纸本)9781424428991
Contemporary machine intelligence is far from realizing prominent hallmarks of human understanding and consciousness. the primary shortcoming of current methods can be attributed to the difficulty or implausibility of foreseeing and pre-programming each and every piece of information or knowledge. Emergent intelligence methods based on principles of self learning and self organization have been successful in infusing traits of understanding in machines. this understanding is in contrast to the constrained intelligence permeated on machines by classical approaches of intelligence following supervised knowledge acquisition mechanisms. the primary objective of this paper is to review current work in emergent intelligence methods and discuss means of orchestrating these in to a practical model that resembles the process of human understanding. the paper delineates intricacies of self-learning in humans from both biological and psychological perspectives. Following a discussion of several artificial models of the human mind that have been researched and documented at the conceptual level, we propose a comparatively pragmatic approach based on a novel unsupervised learning algorithm, the GSOM algorithm. this algorithm has been successfully applied to many real world knowledge acquisition and pattern discovery problems. the paper concludes with a further discussion of research developments in emergent systems, which we perceive to be the stepping stones in the search for true machine understanding.
Committee machines approach has shown to be useful in different applications. Protein primary structure data contain valuable information to extract. In this paper we mine these data and predict protein contact map ba...
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ISBN:
(纸本)9781424422104
Committee machines approach has shown to be useful in different applications. Protein primary structure data contain valuable information to extract. In this paper we mine these data and predict protein contact map based on committee machines. Contact map is the simplified, two dimensional representation of protein spatial structure. Contact map prediction is of great interest due to its application in fold recognition and predicting protein tertiary structure. the results show that the performance of the committee is considerably better than a single model.
machinelearning methods have been widely used in bioinformatics, mainly for data classification and patternrecognition. the detection of genes in DNA sequences is still an open problem. Identifying the promoter regi...
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Artificial Immune Systems (AIS) are emerging information processing methods, which embody the principles of biological immune systems for tackling complex real-world problems. the Artificial Immune recognition System ...
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ISBN:
(纸本)9780769533049
Artificial Immune Systems (AIS) are emerging information processing methods, which embody the principles of biological immune systems for tackling complex real-world problems. the Artificial Immune recognition System (AIRS) is a new kind of supervised learning AIS. the development of microarray technology has supplied a large volume of data for the prediction and diagnosis of cancer. Many popular machinelearning techniques have been used in the microarray data analysis. In this paper, we apply AIRS to perform the microarray data classification based on an improved version of the information gain feature selection method three traditional classifiers have also been employed in our experiments for performance comparison. the results demonstrate the promising ability of AIRS in the microarray data analysis.
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