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Based on the technology acceptance model, the paper developed a conceptual model for mobile game adoption. A questionnaire was developed built upon previous studies. A survey was then conducted, which received 267 useful responses. The results suggested that users perceive mobile game differently with regard to experience and gender difference. It is suggested that the users who have more computer...
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Introducing improved Asmuth-bloom scheme into database watermark, can recover the watermark based on part of data. This algorithm has a good effect of security and resisting subset attack, embedded information increased, and the performance improved much. This algorithm has good application in protecting the copyright of database.
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A novel image watermark algorithm based on digital holography and ridgelet transform was designed by taking the advantage that ridgelet transform domain is a most suitable representation of image's linear outline edge features. Firstly, the image was divided into blocks, and each block was transformed by finite ridgelet transformation. Secondly, the digital holography watermark is embedded into the...
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With the aid of RS and GIS techniques and based on two TM images, the area change and types change of land use in Tai'an City were studied by using change range and change rate indexes, then the drive factors were analyzed. The research indicated that, the change range of cultivated land was largest; its area decreased 31193 hm2, it was translated to woodland, garden and built-up area; the change...
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Sea surface drag coefficient CD is fitted by four wind-wave parameters that are wave age, wave steepness, windsea Reynolds number RB and RH directly, with laboratory, field and combined data set. Comparison and analysis of dependence of CD on wind-wave parameters show that, among the four wind-wave parameters, windsea Reynolds number RB can fit the CD most appropriately.
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The traditional TF-IDF algorithm is a common method that is used to measure feature weight in text categorization. However, the algorithm doesn't take the distribution of feature terms in inter-class and intra-class into consideration. Consequently, the algorithm can't effectively weigh the distribution proportion of feature items. In order to solve this problem, information entropy in inter-class...
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Simple authenticated key agreement protocol has proposed by Seo and Sweeney. It modified the Diffen-Hellan key agreement protocol to provider user authentication. We proposed an improvement of new scheme which it based on simple authenticated key agreement, and it can resist to forgery attack.
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The current network security technologies are mostly passive defense technology, but intrusion detection technology as an active and dynamic network security defense is a new direction in the development of network security technology and it is also a necessary complement to passive defense technology. In this paper, sparse neural network is applied to the field of intrusion detection. Sparse neural...
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Yangtze River Delta is a very important region for China's economic development has played a pivotal role.Then their development mechanism of it is very necessary, but for regional development data, since the existence of space and space-related since the heterogeneous nature of the use of the general regression equation does not apply. In this paper, in recent years to develop the new GWR regression...
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For several decades the remote sensing change detection methods for depicting land cover have gained a great achievements, and the artificial intelligence techniques have being applied to remote sensing data processing and show great potential. Ant colony optimization (ACO) and Particle swarm optimization (PSO) as the two main algorithms of swarm intelligence, and because of the self-organization,...
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The major method of water quality monitoring was sampling in the scene at present in China. In response to the problems such as weak sampling capability of water quality, untimely data processing and so on, based on GPRS technology, the design scheme of an automatic water quality monitoring system is proposed. The system utilizes the water quality monitor to process the sample and send the relevant...
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The image fusion technology is getting more and more widely used in the material evidence photography. Firstly, we comprehensively analyzed and summarised the principle of image fusion technology, combined with operations of software integration, providing a scientific basis for its applications in feature extraction and image enhancement. It also effectively solved the information comprehensiveness...
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The solution of 4DVar may not be unique if observation information is not enough. In order to get the expected solution we can introduce a smooth operator to carry out transformation on the control variable. The numerical experiments with shallow-water-equation model and model data show that through the transformation the analysis increment is restricted in a smooth subspace and the analysis field...
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Currently, the integration of two-dimensional electronic map and three-dimensional virtual scene is a hot spot. Firstly, the article elaborates the characteristics of the integration of VRML-based three-dimensional virtual scene and two-dimensional digital map, then deeply investigates the technology of the integration system of VRML-based three-dimensional virtual scene and two-dimensional digital...
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The purpose of this paper is to study the spatio-temporal changes of cultivated land and driving factors in Shandong Province. The temporal change was based on the economical statistic data from 1952 to 1993. Economical statistic data included gross cultivated land, population, foodstuff output per capita, Gross National Product, national income, total value of agriculture and industry product. The...
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Due to the influence of weather, cloud cover is one of the common noises. For optical remote sensing images, it is necessary to find an effective method to reduce or eliminate the impact of clouds, which is not only the basis of remote sensing image interpretation accuracy, but also an important way to enhance the effectiveness and availability of remote sensing data. This paper firstly detect the...
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This paper sets up an example of virtual prototype modeling for the unmanned lunar vehicle to introduce the application of virtual reality simulation in ADAMS.It also carries out the dynamic analysis for this modeling and further improves the original design.A scientific basis has been provided to the research on this machine.
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In the research of content-based image retrieval, visual signature based on region was attracted more attention. To get the signature based on region, the crucial step is image segmentation, and reliable image segmentation is also critical to get the image shape description. Unfortunately, it has been demonstrated that accurate image segmentation is still an open problem. So some strategies for dealing...
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This article discusses the new generation of ocean Mobile Monitoring Emergency Monitoring System multimedia approach, details of the mobile multimedia surveillance system to monitor emergency set of field test of identification, satellite broadcasting, data transmission, video conferencing, communications command in one mobile emergency monitoring platform. Extract of which involved the theory and...
