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...
详细信息
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.
A new method of data augmentation for machinelearning using 3D model data is proposed. the method involves the use of STL data of an object to automatically generate a set of training data covering a continuous range...
详细信息
ISBN:
(纸本)9781728113227
A new method of data augmentation for machinelearning using 3D model data is proposed. the method involves the use of STL data of an object to automatically generate a set of training data covering a continuous range of view angles and various backgrounds. It also involves the use of two CNN's, one corresponding to the 'object (parent class)' and another to the 'view angle (child class)', that provides a two-stage classification to improve tolerance against over-classification. the performance of the method is demonstrated by comparing categorization results with conventional approach based on real-world photographs. the method shows satisfactory improvements over conventional method using photographed images.
Withthe wide application of knowledge graphs in various scenarios and Neo4j graph databases becoming excellent knowledge graph carriers, Cypher (CQL for short) has become the most popular graph database query languag...
详细信息
ISBN:
(纸本)9798350355925
Withthe wide application of knowledge graphs in various scenarios and Neo4j graph databases becoming excellent knowledge graph carriers, Cypher (CQL for short) has become the most popular graph database query language. However, when performing graph database retrieval, the complex pattern and syntax make constructing CQL statements a complicated and time-consuming task. therefore, similar to Text-to-SQL, it is necessary and urgent to study an effective method for end-to-end transformation of natural languages into CQL. there have been many advances in Text-to-SQL for traditional relational databases, but these methods cannot be well applied to Text-to-CQL, so there is still a lack of effective work on Text-to-CQL for graph databases. In recent years, as large language models have been widely applied to different tasks with good results, and considering that the fundamental difference between CQL and SQL is the representation of graph patterns. We propose in this paper PA-LLM, a Text-to-CQL method that utilizes large language models combined with graph patterns enhancement, which combines large language models and subdivides the graph patterns into three categories according to their respective characteristics. they are simple query patterns, multi-hop query patterns, and function query patterns. For different graph patterns, the method optimizes the process of generating CQL for the model, which can be subdivided into four sub-methods, simple pattern enhancement method, multi-hop pattern enhancement method, function pattern enhancement method, and entity-relationship enhancement method. the experimental results show that the method improves the quality of the CQL statements generated by the model, including the logical accuracy ACCLX and the execution result accuracy ACCEX, and achieves better results on the SpCQL dataset proposed by the National Defense University of Science and Technology (NDUST). It provides an effective solution for the task of converting CQL t
We address the problem of 3D protein deformable shape classification. Proteins are macromolecules characterized by deformable and complex shapes which are related to their function making their classification an impor...
详细信息
ISBN:
(纸本)9781728193311
We address the problem of 3D protein deformable shape classification. Proteins are macromolecules characterized by deformable and complex shapes which are related to their function making their classification an important task. their molecular surface is represented by graphs such as triangular tessellations or meshes. In this paper, we propose a new graph embedding based approach for the classification of these 3D deformable objects. Our technique is based on graphs decomposition into a set of substructures, using triangle-stars, which are subsequently matched withthe Hungarian algorithm. the proposed approach is based on an approximation of the Graph Edit Distance which is characterized by its robustness against both noise and distortion. Our algorithm defines a metric space using graph embedding techniques, where each object is represented by a set of selected 3D prototypes. We propose new approaches for prototypes selection and features reduction. the classification is performed with supervised machinelearning techniques. the proposed method is evaluated against 3D protein benchmark repositories and state-of-the-art algorithms. Our experimental results consistently demonstrate the effectiveness of our approach. Contributions-We propose a new graph embedding approach to classify 3D deformable protein shapes and new techniques for prototypes selection and dimensionality reduction then we performed the classification using a Naive Bayes (NB) classifier and we achieve better results than the state-of-the-art.
these days, Twitter social network is one of the main platforms for getting news, among people over the world. this is because of the high volume of data generated by this social media, which makes Twitter up to date ...
详细信息
ISBN:
(纸本)9781538653647
these days, Twitter social network is one of the main platforms for getting news, among people over the world. this is because of the high volume of data generated by this social media, which makes Twitter up to date with news and information. Nevertheless, the existence of invalid information over the social network makes the users unhappy and also arises some problems in the real world, particularly in the crisis. To overcome these problems and other possible issues, automatic detection of rumor on Twitter must be taken into account. Despite such issues, in this paper, rumor detection in Twitter is studied. In this paper, the rumor is validated by considering the user's feedback, as the source data for rumor study. In our proposed method, patternrecognition and its analysis of the user conversational tree in Twitter is studied. these recognized patterns feed into as features for training a classifier for rumor detection. the model for training a classifier is an Extreme learningmachine and its extension. the dataset for experiments of our method is the standard dataset of SemEval-2017 Task 8. Experiments of our proposed method with respect to competitor methods in rumor detection show that our method outperforms the state of the art methods.
the Morphology of graphite is a decisive factor that affects the performance of the nodular cast iron. In this paper, the basic types of graphite morphology in the nodular cast iron are introduced. the morphological f...
详细信息
ISBN:
(纸本)0780390911
the Morphology of graphite is a decisive factor that affects the performance of the nodular cast iron. In this paper, the basic types of graphite morphology in the nodular cast iron are introduced. the morphological features used in the recognition are defined. During the establishment of fuzzy recognition system, we apply the evolution strategy to computing weight coefficient of every feature. the results of experiment show that the method can effectively recognize the graphite with types of morphology in the nodular cast iron.
the support vector machine (SVM) is considered here in the context of pattern classification, the emphasis is on the soft margin classifier which uses regularization to handle non-separable learning samples. We presen...
详细信息
ISBN:
(纸本)0769521428
the support vector machine (SVM) is considered here in the context of pattern classification, the emphasis is on the soft margin classifier which uses regularization to handle non-separable learning samples. We present an SVM parameter estimation algorithm that first identifies a subset of,the learning samples that we call the support set and then determines not only the weights of the classifier but, also the hyperparameter that controls the influence of the regularizing penalty term, on basis thereof. We provide numerical results using several data sets from the public domain.
the statistics of the World Health Organization indicated that blindness or loss of vision in one of the eyes is one of the many threats and challenges in the world due to the increasing number of people infected annu...
详细信息
暂无评论