In the last few years neural network is found as an effective tool for patternrecognition. the success rate for recognizing known and unknown pattern is relatively, very high with compare to other techniques. this pa...
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ISBN:
(纸本)9789843238146
In the last few years neural network is found as an effective tool for patternrecognition. the success rate for recognizing known and unknown pattern is relatively, very high with compare to other techniques. this paper presents a comparative study of how neural network classifies the patterns from training data and recognizes if testing data holds that patterns. For learning from the training data lots of approaches are present among which we have selected the back-propagation method. Back-propagation algorithm in a feed-forward network. is used for the feature extraction. We have used two approaches and network was trained with specified data. We intended to find the match ratio of training pattern to testing pattern and the result data set found from the experiment also given in the paper.
Sensors have been used with various purposes in the human life. A sensor which can be functioned as a part of a signal process unit or a mechanical machine is defined as "a part of a measuring instrument which de...
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ISBN:
(纸本)9789806560840
Sensors have been used with various purposes in the human life. A sensor which can be functioned as a part of a signal process unit or a mechanical machine is defined as "a part of a measuring instrument which detects and responds immediately changes of a environment". As a sensor just reports the voltage level respect to detected physical or chemical quantity, it is needed to convert properly into meaning data. In most of cases, a sensor array, which consists of various kinds of sensors are used to detect a environment. there are two classes of methods to analyze signal patterns from a sensor array;the statistical method and the neural network method. One method has weak points comparing with another. One of each method's weak points is that most of statistical methods cannot consider shape characteristics of the signal pattern and neural network methods take too long time in the learning process. In spite of this weakness, the neural network process has been used in most of gas patternrecognition in recent studies. In this paper, we introduce a statistical method using state transition model for gas recognition. this paper focuses on making the accurate state transition model. We call this state transition model as ADSTM(Angle Difference based State Transition Model). through various experiments, we analyze the proposed ADSTM modeling method. the results of experiments show that ADSTM is a fast and reliable statistical method for recognizing a signal pattern of the sensor array.
To diagnose a slight and incipient fault in a power plant thermal system correctly and timely, a new fault recognition approach is put forward by using fault symptom zoom technology(SZT) and fuzzy patternrecognition ...
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ISBN:
(纸本)3540335846
To diagnose a slight and incipient fault in a power plant thermal system correctly and timely, a new fault recognition approach is put forward by using fault symptom zoom technology(SZT) and fuzzy patternrecognition method. By studying the rules of the faults pertinent to energy and mass balance in a power plant thermal system, a new fault symptom preprocessing method, which is called "fault symptom zoom technology", is put forward to preprocess the fault characteristic parameters. the complexity of the thermal system fault knowledge library can be effectively reduced and the slight fault recognition ability can be. greatly enhanced with SZT. the fault fuzzy patternrecognition method is introduced. A new general-purpose fuzzy recognition function is given, which can fit for various kinds of fault symptoms and is with favorable fault classifying ability. Some examples for incipient and slight fault diagnosis for a power plant thermal system are given to verify the effectiveness of the method.
We investigate the use of independent component analysis (ICA) for speech feature extraction in digits speech recognition systems. We observe that this may be true for recognition tasks based on Geometrical learning w...
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ISBN:
(纸本)3540335846
We investigate the use of independent component analysis (ICA) for speech feature extraction in digits speech recognition systems. We observe that this may be true for recognition tasks based on Geometrical learning with little training data. In contrast to image processing, phase information is not essential for digits speech recognition. We therefore propose a new scheme that shows how the phase sensitivity can be removed by using an analytical description of the ICA-adapted basis functions. Furthermore, since the basis functions are not shift invariant, we extend the method to include a frequency-based ICA stage that removes redundant time shift information. the digits speech recognition results show promising accuracy. Experiments show that the method based on ICA and Geometrical learning outperforms HMM in a different number of training samples.
this paper presents a novel unsupervised fuzzy clustering method based on clonal selection algorithm for anomaly intrusion detection in order to solve the problem of fuzzy k-means algorithm which is particularly sensi...
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ISBN:
(纸本)3540335846
this paper presents a novel unsupervised fuzzy clustering method based on clonal selection algorithm for anomaly intrusion detection in order to solve the problem of fuzzy k-means algorithm which is particularly sensitive to initialization and fall easily into local optimization. this method can quickly obtain the global optimal clustering with a clonal operator which combines evolutionary search, global search, stochastic search and local search, then detect abnormal network behavioral patterns with a fuzzy detection algorithm. Simulation results on the data set KDD CUP99 show that this method can efficiently detect unknown intrusions with lower false positive rate and higher detection rate.
this paper presents a novel approach for adaptive online multi-stroke sketch recognition based on Hidden Markov Model (HMM). the method views the drawing sketch as the result of a stochastic process that is governed b...
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ISBN:
(纸本)3540335846
this paper presents a novel approach for adaptive online multi-stroke sketch recognition based on Hidden Markov Model (HMM). the method views the drawing sketch as the result of a stochastic process that is governed by a hidden stochastic model and identified according to its probability of generating the output. To capture a user's drawing habits, a composite feature combining both geometric and dynamic characteristics of sketching is defined for sketch representation. To implement the stochastic process of online multi-stroke sketch recognition, multi-stroke sketching is modeled as an HMM chain while the strokes are mapped as different HMM states. To fit the requirement of adaptive online sketch recognition, a variable state-number determining method for HMM is also proposed. the experiments prove boththe effectiveness and efficiency of the proposed method.
In this paper, an effective method to discover repeating pattern from audio is proposed. Since the previous feature extraction methods are usually process monophony audio, for extracting more descriptive features from...
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ISBN:
(纸本)3540335846
In this paper, an effective method to discover repeating pattern from audio is proposed. Since the previous feature extraction methods are usually process monophony audio, for extracting more descriptive features from polyphony audio, Gabor filters bank is introduced. Meanwhile the measure criteria is suggested for qualitatively and quantitatively weighting the discernibility of extracted features. In addition, the presented algorithm is based on the incremental match and has time complexity O(nlog(n)). Experimental evaluations show that our proposed method could extract complete and meaningful repeating patterns from polyphony audio.
the proceedings contain 68 papers. the topics discussed include: a comparative analysis of data distribution methods in an agent-based neural system for classification tasks;stochastic differential portfolio games wit...
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ISBN:
(纸本)0769526624
the proceedings contain 68 papers. the topics discussed include: a comparative analysis of data distribution methods in an agent-based neural system for classification tasks;stochastic differential portfolio games with regime switching model;extracting symbolic rules from clustering of gene expression data;a novel microarray gene selection method based on consistency;combining greedy method and genetic algorithm to identify transcription factor binding sites;investigation of a new artificial immune system model applied to patternrecognition;RLM: a new method of encoding weights in DNA strands;shape representation and distance measure based on retational graph;fast modeling of curved object from two images;research on an improved gray gradient orientation algorithm in anisotropic high-pass filtering;and image color reduction based on self-organizing maps and growing self-organizing neural networks.
this paper explores the customized learning from specific to general for classification learning. Our novel learning framework called SUPE customizes its learning process to the instance to be classified called query ...
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ISBN:
(纸本)3540335846
this paper explores the customized learning from specific to general for classification learning. Our novel learning framework called SUPE customizes its learning process to the instance to be classified called query instance. the data representation in SUPE is also customized to the query instance. Given a query instance, the training data is transformed into a query matrix, from which useful patterns are discovered for learning. the final prediction of the class label is performed by combining some statistics of the discovered useful patterns. We show that SUPE conducts the search from specific to general in a significantly reduced hypothesis space. the query matrix also facilitates the complicated operations in SUPE. the experimental results on benchmark data sets are encouraging.
Glaucoma is a common disease of the eye that often results in partial blindness. the main symptom of glaucoma is the progressive deterioration of the visual field. Glaucoma management involves monitoring the progress ...
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ISBN:
(纸本)3540335846
Glaucoma is a common disease of the eye that often results in partial blindness. the main symptom of glaucoma is the progressive deterioration of the visual field. Glaucoma management involves monitoring the progress of the disease using regular visual field tests but currently there is no standard method for classifying changes in visual field measurements. Sequence matching techniques typically rely on similarity measures. However, visual field measurements are very noisy, particularly in people with glaucoma. It is therefore difficult to establish a reference data set including both stable and progressive visual fields. We describe method that uses a baseline computed from a query sequence, to match stable sequences in a database collected from volunteers. the results suggest that the new method is more accurate than other techniques for identifying progressive sequences, though there is a small penalty for stable sequences.
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