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Opinion mining technique aims at automatically obtaining valuable information by retrieving and processing product reviews on the web, product feature extraction is the key step for opinion mining. Currently, the product feature extraction has been studied a lot in the field of English. However, the research of Chinese feature extraction is insufficient. There exist many issues such as small size...
This paper presents a novel six-degree-of-freedom (six-DOF) accelerometer that based on single mass structure for determination of spatial vibration characteristics, which employs six groups of piezoelectric quartzes as acceleration sensing elements. The operating principle of the proposed six-DOF accelerometer is analyzed, and its analytical model and structure model are constructed. The numerical...
Electrostatic adhesion technology having good application prospects on wall climbing robots has been extensively investigated in recent years. In this paper, an accurate analytical model that is derived from ideal the parallel-plate capacitor consisting of two different dielectric layers in series has been developed by the Maxwell stress tensor formulation for the electrostatic attraction force between...
Through using data mining methods, we can find useful hidden trends and relationships in the mass data. This can help supply chain companies to improve the quality of decision-making on supply chain management with the gained knowledge. Take the supply chain product polyester filament as an example, through the influence factor analysis of polyester filament price; this paper uses data mining methods...
In this paper, we propose a novel quality assessment of finger-vein images for quality control purpose. First of all, we divide a finger vein image into a set of non-overlapping blocks. In order to detect the local vein patterns, each block is projected into the Radon space using an average Radon transform. A local quality score is estimated for each block according to the curvature in the corresponding...
Call access control (CAC) is one of the most important parts in wireless communication network resource management. The system allow or refuse the access according to certain standards of CAC strategy decision. It will have a direct impact on the performance of the network and resources utilization. In cdma system there is a algorithm based on a comparison of access control, but this strategy is in...
It developed a sort of tactile sensor array system that built in various shapes and provided a wide range of spatial resolution. The sensor system built a demonstration system in lab and developed algorithms to process the large amount of tactile data. The efficient fusion of data from different sensors would enable the robot to respond promptly in dealing with the "real world". The confidence...
The method based on the normalized moment of inertia was used to reconstruct the tactile sense data, meanwhile established the cognitive map model for the data processing of robot tactile sensor, and the relatively inferential operational steps of model was also expressed . These inputs of the cognitive map concept nodes involved tactile sense data, such as press location, press values and the reconstructed...
Because traditional transformer diagnosing approaches are over-rigidity and need almost complete and accurate testing data, a NB (Naive Bayesian) classifier based model to diagnose transformer faults is presented and constructed in the paper. As the diagnosing performance is depressed by incomplete testing data, SVM regression approach is used to estimate the missing data. Thus a new diagnosis model,...
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