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In order to better develop students' bilingual conversation abilities during bilingual instruction, an bilingual conversation ability training system based-on campus network was designed and implemented by the use of LAN real-time speech communication technology, so that the students could develop and improve their bilingual conversation abilities in cooperative learning manners. The practical application...
A practical scenario to realize Ad hoc network based on the Linux operation system is proposed in this paper. A practical test network composed of several nodes is built and DSR (Dynamic Source Routing) protocol is selected to run on the test network. Meanwhile, in order to obtain better support for real time multimedia services, an improved DSR protocol considering delay demand is also testified...
In this paper, we propose a novel multi-label image annotation for image retrieval based on annotated keywords. For multi-label image annotation, a bi-coded genetic algorithm is employed to select optimal feature subsets and corresponding optimal weights for every one vs. one SVM classifiers. After an unlabelled image is segmented into several regions with image segmentation algorithm, pre-trained...
Cognitive load theory serves as an important and basic theory that guide multimedia instruction design and software development. In cognitive load theory, individuals is regarded to use cognitive resource, which provided by working memory capacity in fulfilling similar tasks. and thus induce extraneous, intrinsic and germane cognitive load. In this paper, according to the analysis of the three types...
At present, the number of Internet subscribers accessing Internet through mobility terminal equipment and other new types is gradually increasing, which shows it's important to develop mobility management protocols in order to provide mobility support for the subscribers. Several protocols were proposed to support IP mobility in the IETF, such as MIPv6, HMIPv6, FMIPv6 and F-HMIPv6. Some performance...
The proxy is one of the important parts of the Internet. The proxy can reduce the data flow and release the load of the servers. Because of the unpredictable problem of the network, the proxies have great influence on the video QoS. Through the perfect algorithm, within the acceptable scope, the proxy can improve the performance of the system. In the video service system, the proxy can improve the...
Targeting the present situation and problems of Internet business model, and summarizing literatures on business model research, this paper puts forward a new definition of business model for a novel Internet digital content distribution platform. Then the paper presents a mapping approach to educe system logic function design from the business model, which could improve the completeness of system...
In this paper the throughput, frame discard probability, and average frame delay performance of DCF in IEEE 802.11 are analyzed and evaluated for different parameters, such as the number of users and frame size considering the network delay and the CTS/ACK time out. Related analysis and statements will be helpful to research and development of wireless networks and products.
Land-use change is an important area of global change research, rapid and accurate access to land-use temporal and spatial variation information is a key technology to study land-use change. In this paper proposed a method which utilizes the improved model of fuzzy ARTMAP network - simplified fuzzy ARTMAP neural network for remote sensing land-use classification, and Take the TM remote sensing image...
This paper proposes a new PID parameter tuning method using Chaotic Particle Swarm Optimization (CPSO) with ICMIC. The method is implemented into the PID tuning of the position control system, where the transfer function represents a plant model of a servo system. The PID parameter is computed by CPSO-based, PSO-based and ZN-based PID tuning method according to the obtained model, respectively. The...
One of the methods for detecting watermarks after geometrical distortions is correcting distorted watermarked image before detecting. In this paper, a definition of weight Hausdorff distance is defined. It is applied to evaluation the similarity between original and geometric distorted watermarking image. A fast divide and conquer strategy in six dimension is used to search the transformation parameters...
This paper briefly introduces data acquisition approaches of tunnel deformation with the assistance of video camera, camera, georobot, three-dimensional laser scanner and other acquisition equipments of graph and image, proposes mathematical process flow of multimedia deformation monitoring data and discusses storage, query and calling, analysis and management methods of multimedia deformation monitoring...
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