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This paper presents a variational method for SAR image segmentation that unifies boundary- and region-based information into the geometric active contour model. A new Riemannian metric is introduced to construct region-based energy function derived by maximizing the geodesic distance of a new Riemannian metric in differential-geometric structure for spectral density functions. A heterogeneity indicator...
In the open argumentative multi-agent systems, structured arguments and counter-arguments are acquired and exchanged by agents dynamically to build dialogs. Argument acquisition by deductive reasoning explores the value of knowledge for agents to build dialogs autonomously. Desired arguments shall contain all the deductive information and be able to express classical negation. However, previous argument...
State-of-the-art multiobjective evolutionary algorithms (MOEAs) treat all the decision variables as a whole to optimize performance. Inspired by the cooperative coevolution and linkage learning methods in the field of single objective optimization, it is interesting to decompose a difficult high-dimensional problem into a set of simpler and low-dimensional subproblems that are easier to solve. However,...
This paper gives an equipment maintainability verification method based on digital human technique. It builds digital human of equipment maintenance personnel, splits typical equipment maintenance action to some maintenance action elements, sets storeroom of equipment maintenance action element, designs tread and path of equipment maintenance personnel action, and realizes movement of digital human...
The components and position principle of vehicle-borne LIDAR system are expatiated. Based on the previous experience a new method for automated extraction of building facades from VLS was put forward,. It adopt image segmentation and contour extraction tracing to extract building boundaries in the geo-referenced feature image. the existing methods of RANSAC, point cloud segmentation, feature extraction...
This paper select 16 housing characteristics in Xi'an Qu Jiang New District and constructs hedonic price model based semi-parametric method, using of 348 sets of samples of residential and 15 residential district information, then it adopts the R software for analysis. Finally we compares with the traditional parameters. The result shows that the semi-parametric model has a higher goodness of fit...
Using the income and consumption data of rural residents of China from the year 2002 to 2008, this paper builds up the panel data model, analyzes the influence of income gap on the rural consumption structure in China, meanwhile consumption functions of various expenditure based on income gap are estimated, and further discussions are also carried out according to the estimation results.
The influence of blasting vibration to surroundings around the blasting area can not be ignored, in order to guarantee the safety of surroundings around blasting area, blasting vibration forecasting model based on neural network is established by improved BP neural network in this paper. The inputs of the model are the largest single fire dynamite, height difference and horizontal distance between...
Past research suggests that compared to face-to-face (FFC) contact, computer-mediated communication (CMC) is less effective in building trust. Yet there has been little research of cultural differences regarding the role of FFC and CMC in building trust. A study between Chinese and Australian subjects found that eastern cultures (featured by China) and western cultures (featured by Australia) differed...
Efficiency audit is not only the needs of transformation of the internal audit from traditional to modern, but also the inevitable trend of development of an internal audit in China nowadays. Verity and legitimate are the bottom line, the goal is the enhancement of economic efficiency, efficiency audit refers to the nature of the use of resources. In this paper, aiming at the important direction of...
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