Abnormal activity recognition is considered as the most challenging task in surveillance videos. Due to the traditional method depend on the computation of artificial features, and noise data has some influence on the...
Abnormal activity recognition is considered as the most challenging task in surveillance videos. Due to the traditional method depend on the computation of artificial features, and noise data has some influence on the extracted features. In this paper, a new hybrid deep learning structure was proposed to fuse the extracted features, which integrates convolutional neural network (CNN) and long short-term memory network (LSTM). Firstly, the video was preprocessed and extracted visual features by CNN. Next, LSTM was used to learn the temporal features of visual features and added attention mechanism to select important features. Finally, the video feature vector obtained layer by layer to judge abnormal activity. An experiment is used to test the ability of the model on the standard dataset UMN to recognize abnormal activity, the result shows that our experimental demonstrate high performance of recognition and outperform the state-of-art algorithms.
It is a reliable way to judge gastric cancer by pathological section. Using deep learning method to detect medical images, as an auxiliary diagnosis method, it can improve the speed and accuracy of doctors to diagnose...
It is a reliable way to judge gastric cancer by pathological section. Using deep learning method to detect medical images, as an auxiliary diagnosis method, it can improve the speed and accuracy of doctors to diagnose gastric cancer, and reduce misdiagnosis and missed diagnosis. Mask R-CNN is the latest method in the related field at the beginning of the research. It is mainly used to segment the objects in daily life and achieve good results. the medical image is very different from the scene in life, and the detection effect is also weakened. We use the Mask R-CNN method to detect the pathological sections of gastric cancer, and segment the cancer nest, and then optimize it by adjusting parameters. the method finally allows it to obtain a test result with an AP value of 61.2 when detecting medical images.
In order to meet the high requirements of the shop management system for device data-aware interaction, in the traditional data-aware mode, this paper proposes a development platform based on Kepware as a perceptual s...
In order to meet the high requirements of the shop management system for device data-aware interaction, in the traditional data-aware mode, this paper proposes a development platform based on Kepware as a perceptual software, through the combination of heterogeneous device network design and wireless network (AP), using OPC the interface technology realizes the parallel acquisition of multi-channel data of heterogeneous devices, and verifies the feasibility of the data acquisition method through experiments. the results of the research show that the information of real-time perception and production status monitoring based on Kepware can quickly process, analyze, real-time display and store the data of each channel. this scheme has certain reference value for the data collection of heterogeneous equipment in digital workshop.
throughout the rough machining stage, band saw machines are widely used to cut various raw materials into the required dimensions. the replacement of a blade due to the blades degradation accounts for a large part of ...
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On the highway, the rapid growth of the freight transportation leads to a sharp increase in actual traffic loads, and then directly causes serious damage to the pavement. Considering pavement maintenance, it is necess...
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ISBN:
(纸本)9781538683088
On the highway, the rapid growth of the freight transportation leads to a sharp increase in actual traffic loads, and then directly causes serious damage to the pavement. Considering pavement maintenance, it is necessary to study the relationship between the truck axle load and the damage of pavement so as to providing data for the highway pavement maintenance. In China, for transport vehicles on highways, they are generally charged by weight. Besides, the damage condition of pavement can be detected periodically by manual work or the rapid testing equipment. these two points provide basic data for the study of the relationship between axle load of highway trucks and the pavement damage. In this paper, first, extract standard axle load that can represent the traffic load and the technical status of the pavement that can represent road damage based on the data of the loading-based toll collection data and the pavement's technical status. then, the machine-learning algorithm was used to study the relationship between the traffic load and the pavement damage to predict the technical status of the pavement.
University of Corsica and CNRS are working on a scientific program called "Smart Paesi". this project focus on a sustainable rural territories development using advanced artificial intelligence concepts in o...
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the recent advancement on wearable physiological sensors supports the development of real-time diagnosis in preventive medicine that demands various signal processing techniques to enable the extraction of the vital s...
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In the present world, the commotion centering Big data is somewhat obscuring the craft of mining information from smaller samples. Populations with limited examples but huge dimensionality are a common phenomenon, oth...
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ISBN:
(数字)9781728184166
ISBN:
(纸本)9781728184173
In the present world, the commotion centering Big data is somewhat obscuring the craft of mining information from smaller samples. Populations with limited examples but huge dimensionality are a common phenomenon, otherwise known as the curse of dimensionality-especially in the health sector-thanks to the recently-discovered potential of data mining and the enthusiasm for feature engineering. Correlated, noisy, redundant features are byproducts of this tendency, which makes learning algorithms converge with greater efforts. this paper proposes a novel feature-pruning technique relying on computational graph theory. Restoring the appeal of pre-AI conventional computing, the paper applies Disjoint Set Union (DSU) on unidirectional graphs prepared basis thresholded Spearman's rank correlation coefficient, r. Gradual withdrawal of leniency on Spearman's r caused a greater tendency in features to form clusters, causing the dimensionality to shrink. the results-extracting out finer, more representative roots as features-have been k-fold cross-validated on a case study examining subjects for Parkinson's. Qualitatively, the method overcomes Principal Component Analysis's (PCA) limitation of inexplicit merging of features and Linear Discriminant Analysis's (LDA) limitation of inextendibility to multiple classes. Statistical inference verified a significant rise in performance, establishing an example of conventional hard computing reinforcing modern soft computing.
the neuron classification problem is significant for understanding structure-function relationships in computational neuroscience. By solving neuronal classification problem, we can further understand the characterist...
the neuron classification problem is significant for understanding structure-function relationships in computational neuroscience. By solving neuronal classification problem, we can further understand the characteristic of neurons and the process of information transmission. In the training process of the neuron geometry classifier, selecting the appropriate neuron feature data is the premise of obtaining good classification results. First, a data set of 200 three-dimensional neurons was constructed, and there were 10 different types of neurons. Secondly, according to the difference of the extracted neuron characteristic parameters, it is divided into two categories: global features and distribution features. Finally, the machine learning methods such as Logistic Regression, K-Nearest Neighbor, Naive Bayes, Decision Tree, Random Forest, Extremely Randomized Trees and Extreme Gradient Boosting are used to classify neurons, and the effects of different features on neuron classification results are analyzed. the experimental results show: (1) For the K-Nearest Neighbor and Naive Bayes, the distribution feature of the neuron is more critical than the global feature, and even if the effect of the combination of the two will not be improved; (2) the ensemble classifier based on decision trees, such as Random Forests, Extremely Randomized Trees and Extreme Gradient Boosting have better accuracy and stability for neuron classification.
In view of the insufficient in the existing researches that the non-linearity of subcontracting resource system for the municipal road engineering construction is ignored, combined withthe theory of road construction...
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ISBN:
(纸本)9781538683088
In view of the insufficient in the existing researches that the non-linearity of subcontracting resource system for the municipal road engineering construction is ignored, combined withthe theory of road construction quality optimization management in the context of cloud data, a kind of strategy for construction quality optimization management of municipal road engineering based on fast mining algorithm for large cloud data (referred to as FMALCD for short) is put forward to achieve the effective analysis on the construction quality optimization management of the municipal road engineering. Firstly, after the identification of the conditions under the dynamic constraints of the municipal road engineering construction, the serial number of the first construction node is calculated. Reordering is carried out to meet the optimization characteristics of the construction quality optimization management. In the FMALCD, the nonlinear characteristics of a kind of fast mining for the cloud data is combined in the application to further optimize the issue of the municipal road engineering construction quality optimization management. In addition, analysis is carried out on the performance of the algorithm through simulation experiment. the analysis is conducted mainly from the perspective of effectiveness, relative advantages and so on.
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