there are four main problems that limit application of patternrecognition techniques for recognition of abnormal cardiac left ventricle (LV) wall motion: 1) Normalization of the LV's size, shape, intensity level ...
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ISBN:
(纸本)9783642042706
there are four main problems that limit application of patternrecognition techniques for recognition of abnormal cardiac left ventricle (LV) wall motion: 1) Normalization of the LV's size, shape, intensity level and position;2) defining a spatial correspondence between phases and Subjects;3) extracting features;4) and discriminating abnormal from normal wall motion. Solving these four problems is required for application of patternrecognition techniques to classify the normal and abnormal LV wall motion. In this work, we introduce a normalization scheme to solve the first and second problems. Withthis scheme, LVs are normalized to the same position, size, and intensity level. Using the normalized images, we proposed an intra-segment classification criterion based on a con-elation measure to solve the third and fourth problems. Application of the method to recognition of abnormal cardiac MR LV wall motion showed promising results.
this paper presents a novel approach for behavior recognition from video data. A biologically inspired action representation is derived by applying a clustering algorithm to sequences of motion images. To obey the tem...
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ISBN:
(纸本)9783540742715
this paper presents a novel approach for behavior recognition from video data. A biologically inspired action representation is derived by applying a clustering algorithm to sequences of motion images. To obey the temporal context, we express behaviors as sequences of n-grams of basic actions. Novel video sequences are classified by comparing histograms of action n-grams to stored histograms of known behaviors. Experimental validation shows a high accuracy in behavior recognition.
this paper presents ontlology-based architecture for patternrecognition in the context of static source code analysis. the proposed system has three subsystems: parser, OWL ontologies and analyser. the parser subsyst...
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ISBN:
(纸本)9783540855620
this paper presents ontlology-based architecture for patternrecognition in the context of static source code analysis. the proposed system has three subsystems: parser, OWL ontologies and analyser. the parser subsystem translates the input coded to AST that is constructed as an XML tree. the OWL ontologies define code patterns and general programming concepts. the analyser subsystem constructs instances of the input code as ontology individuals and asks the reasoner to classify them. the experience gained in the implementation of the proposed system and some practical issues are discussed. the recognition system successfully integrates the knowledge representation field and static code analysis. resulting in greater flexibility of the recognition system.
the paper deals with problems which appear when solving the task of patternrecognition in a feature space that is not identical withthe space of the unknown decisive key features. In a common sense it deals withthe...
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In order to improve the sorting efficiency of workpieces, improve the sorting quality, reduce the labor intensity of workers and improve the working environment, and at the same time meet the needs of small batch, mul...
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Shape or color based moment invariants are conventional pattern sensitive features in the object recognition and image description. However, the existing moment invariants are not robust because they handle simplified...
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recognition of activities through wearable sensors such as accelerometers is a recent challenge in pervasive and ubiquitous computing. the problem is often considered as a classification task where a set of descriptiv...
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ISBN:
(纸本)9781509056989
recognition of activities through wearable sensors such as accelerometers is a recent challenge in pervasive and ubiquitous computing. the problem is often considered as a classification task where a set of descriptive features are extracted from input signal to feed a machine learning classifier. A major issue ignored so far in these studies is the incorporation of locally embedded features that could indeed be informative in describing the main activity performed by the individual being experimented. To close this gap, we offer here adapting Local Binary pattern (LBP) approach, which is frequently used in identifying textures in images, in one-dimensional space of accelerometer data. To this end, we exploit the histogram of LPB found in each axes of input accelerometer signal as a feature set to feed a k-Nearest Neighbor classifier. the experiments on a benchmark dataset have shown that the proposed method can outperform some previous methods.
A key component that has arisen in[10] human-computer interaction, artificial intelligence, and affective computing is the ability to recognize emotions. the objective of the research project is to examine a method th...
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this study introduces a deep learning approach to identify patterns in floating bridges, specifically employing the Long Short-Term Memory (LSTM) algorithm to analyze time-domain data. Wind, wave, and displacement tha...
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In patternrecognition, the principal component analysis (PCA) is one of the most famous feature extraction methods for dimensionality reduction of high-dimensional datasets. Furthermore, Simple-PCA (SPCA) which is a ...
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ISBN:
(纸本)9781457709661
In patternrecognition, the principal component analysis (PCA) is one of the most famous feature extraction methods for dimensionality reduction of high-dimensional datasets. Furthermore, Simple-PCA (SPCA) which is a faster version of the PCA, has been carried out effectively by iterative operated learning. However, in SPCA, when input data are distributed in a complex way, SPCA might not be efficient because it is learned without class information of the dataset. thus, SPCA cannot be said that it is optimal for classification. In this paper, we propose a new learning algorithm, which is learned withthe class information of the dataset. Eigenvectors spanning eigenspace of the dataset are obtained by calculation of data variations belonging to each class. We will show the derivation of the proposed algorithm and demonstrate some experiments to compare the SPCA withthe proposed algorithm by using UCI datasets.
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