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This article is a report written for the school directors to propose an action plan integrating ICT into education. It discussed the potential benefits of ICT to the school and the difference between modern ICT and previous educational technology, the difficulties that may arise in using ICT effectively and the possible solutions and recommendations to the problems.
In this paper, we focus on efficient keyword query processing for XML data based on the SLCA and ELCA semantics. We propose a novel form of inverted lists for keywords which include IDs of nodes that directly or indirectly contain a given keyword. We propose a family of efficient algorithms that are based on the set intersection operation for both semantics. We show that the problem of SLCA/ELCA computation...
This paper investigates the resource allocation problem in a relay-aided cognitive radio (CR) system under the orthogonal frequency division multiplexing (OFDM) transmission. Different from the conventional CR resource allocation problem, the relay node here is capable of performing subcarrier permutation over two hops such that the signal received over a particular subcarrier is forwarded on a different...
Graphs are widely used to model complicated data semantics in many applications in bioinformatics, chemistry, social networks, pattern recognition, etc. A recent trend is to tolerate noise arising from various sources, such as erroneous data entry, and find similarity matches. In this paper, we study the graph similarity join problem that returns pairs of graphs such that their edit distances are...
Reviewers play a significant role in research project selection, because their opinions will have great influence on the decision of the projects which will be funded. Current methods mainly focus on the evaluation of reviewers' competitiveness in a certain research areas, while ignoring the performance of reviewers whether is suitable to review a proposal. In this paper, a group decision support...
Cognitive radio (CR) allows unlicensed users to access the licensed spectrum opportunistically (i.e., when the spectrum is left unused by the licensed users) to enhance the spectrum utilization efficiency. In this paper, the problem of allocating resources (channels and transmission power) in multihop CR networks is modeled as a multicommodity flow problem with the dynamic link capacity resulting...
This paper presents an H∞ controller design method for a class of Networked Control Systems (NCSs) with bounded packet dropouts. The state feedback closed-loop NCS is modeled as a Markov system. A sufficient condition for stochastic stability with an H∞ disturbance attenuation level is derived through a Lyapunov function, which is dependent on the upper bound of the number of consecutive packet dropouts...
There is growing evidence from patient and psychoneuroimmunology studies that there is a clear correlation between the psychosocial stress and health state, but the neural mechanism of the correlation remain poorly understood. The deactivations of the limbic system and anterior frontal cortex during acute psychosocial stress were reported in recent studies, and the observed results suggest these brain...
The paper is start from the characteristics of ground subsidence on the Daye Iron Mine, analyzes the instability of the surface area caused by the subsidence of Iron Mine. The ground subsidence can be divided into the fall area and the crack area. On this basis, a new thinking is proposed, which is getting the monitor data of the fall area and the crack area changes, then building monitor model. And...
For the needs of the rehabilitation training of lower limbs, a wire-driven aid-walking robot is proposed, and the kinematic research is done in this paper. This aid-walking robot is designed according to the skeletal structure of lower limbs of the normal person. After this, the kinematic model of this system is built based on D-H method. By this model, the relationship between the length of wires...
In the management of the online public opinion and Internet intelligent information, people need to obtain the content of the forum threads for further research on the topic emotion and the dissemination of forum topics. This paper presents a method based on templates to extract web forum contents. Proposed method overcomes the problem which caused by the change of the web pages structures and contents,...
Zigbee wireless communication technology is a kind of newly arisen wireless network technology; the characteristic is short distance communication, low speed, low power dissipation, and low cost. It, application of Zigbee wireless communication technology, makes that inconvenient wire repeat can be avoided in the area of home, factory, hospital, etc. With the rapid development of IT industry and the...
Spectrum sensing is adopted to detect the presence of primary users in cognitive radio networks. Considering the sensing overhead, it is not always a good choice that the secondary user senses the channel all the time. In this paper, we propose an opportunistic spectrum sensing decision method according to the primary user's traffic. First, the traffic of primary user is observed and estimated. For...
evaluating the education value of video games is a complex task. Based on the educational evaluation system for video games, we establish a corresponding automated evaluation model using the Back-propagation (BP) neural network technology. After training with the expert knowledge, the model not only has the experience of experts, but also has the computational capacity to evaluate new cases.
To confirm that visual training can change EEG patterns by association rule mining method, firstly, we collected the EEG of people who are under a long-term visual professional training (visual training group) and novice people (control group) during a specific mental tasks. Secondly, we determined the difference of brain electrical activity between the two groups using machine learning methods. Thirdly,...
Affinity propagation clustering algorithm is with a broad value in science and engineering because of it no need to input the number of clusters in advances, robustness and good generalization. But the algorithm needs the initial similarity (the distance between any two points) as a parameter, a lot of time and storage space is required for the calculation of similarity. It's limited to apply to cluster...
Identifying the subject's simple judging states from fMRI data is the basis of studying complex logical relationship and has great theoretical significance. In this paper, we study judging states from fMRI data in terms of logical recognition classifications. We found that the ROI (Regions of Interest) regions played an important role in visual recognition task and identified what ROI regions were...
Because of the inherent complexities and strategic impacts of BOT (build-operate-transfer) projects call for careful concessionaire selection methodologies. Selection of the right concessionaire, which is critical to the success of such BOT projects, depends on the quality of identifying and defining suitable project-specific criteria and the quality of formulating an efficient tender evaluation methodology...
This paper analyzes the developmental dilemma of the undergraduate tutorial system, and the current education of English studies in Chinese higher learning. Taking Xi'an Polytechnic University as an example, the author explores a bottom-up strategy of conducting the reform of tutorial system, which justifies the necessity and favorable condition of implementing the tutorial system for undergraduates...
By using the methods of documentation, expert interview and related sports economics principle, the author made a research of the current situation about the sports stars as spokesperson, and also offered some suggestions on how to develop this behavior healthily. The purpose of this paper is to improve the market development of sports stars as spokesperson and to prompt the development of China's...
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