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With the rapid development of distance education institution, there exist lots of educational data to be analyzed for improving online teaching. Decision tree is an effective analysis algorithm in data mining. In this paper, decision tree algorithm is used to analyze students' achievement data provided by the Open University of China. The experiment result shows that students have different achievement...
In order to obtain workflow model made of tuples of activity-role from work logs, this paper presents a workflow mining algorithm. Firstly, identify the frequent sets with nodes based on tuples of activity-role, through the weighted association rules algorithm which avoid missing of some of the important but non frequent role through setting the different values of the roles. The node flow matrix...
Aiming at the practical engineering problems, when the multi-objective problem known a few of the optimization solutions, often need to be in a region search the relatively dense Pareto solution set for problems. This paper puts forward a multi-objective genetic algorithm based on the nearest neighbor method, the optimal solution of the known information added to the initial sample space, use the...
In recent years, the continuing education of nursing in China developed rapidly with obvious effects. However, there are also some problems existed, especially on teaching. The traditional education mode leads to the doubtable motivation of continuing education students, and the results are not satisfactory. Therefore, the necessity and mode of remote network based continuing education for nursing...
The increment minimized recursive predicting model, the generalized predicting control law and the parameter adaptive recursive predicting algorithm are presented for a class of nonlinear discrete-time systems with time delays based on dynamic approximate Hammerstein model. They realize the generalized predicting control for the time-delayed nonlinear systems with larger time delays. The simulation...
A stereo vision-based obstacle awareness and avoidance algorithm for indoor UAVs is described in this paper. While in most papers UAVs perceive the environment by vision-based obstacle discrimination, in our method a scene depth map is directly used, which makes our algorithm more adaptive in complex environment with numerous obstacles. For the purpose of lower time cost and less match mistakes, edge...
Collapse accident frequently occurs at tunnel export. In order to reveal the mechanism of this kind of tunnel collapse, three-dimensional elastic-plastic calculation model is established according to Maanshan mountain tunnel. Thick soft overburden, untimly support and rainwater infiltration are considered as the main influencing factors of the tunnel collapse. Its special geological condition is determinative...
In order to analyze the influence factors of rural land circulation, based on theory analysis and empirical study, the results indicate that the farm households' behaviors result from kinds of factors. Contract land per person, non-agricultural income per person, agricultural members per family and the high school education are four main influence factors. According to the results, the paper gave...
The team-building of technology innovation talents is directly related to the survival and development of enterprises.First this paper proposes an index system of appraising an enterprise technology innovation talents'team, and then use ANP(analytic network process) method to analyze the relation between the indexes,and to obtain the weight of each index. This paper reveals the degree of each index's...
This paper puts forward a kind of detecting method of collusion suitable for MMOG. Through the analysis of the collusion behavior by sociology, it is known that participates in collusion exist abnormal behavior and abnormal relations between earning and losses. Firstly, the behavior patterns library is established for the players, and it is applied to detect their abnormal behavior. Simultaneously,...
This paper proposes a cheat-detection method based on Fuzzy Synthesis Decision for aimbot cheating in MMOG. Firstly, the decision set and the factor set that affect the cheating are determined. The factors weight vector which distinguishes the impact of different factors on the cheating is determined by Information Entropy. The membership function for each factor is given according to the factor feature,...
Now many universities have already set up bilingual courses. How to apply Computer Aided Translation to manage English-Chinese bilingual course materials is discussed. The system developed by translation memory and efficient searching technology can achieve efficient management of parallel texts and improve translation efficiency.
Technology spillover of foreign direct investment inflow has always been highly concerned by scholars, while, the effect of spillover varies in provinces due to different technology absorptive capacity. This paper divides Chinese provinces into two groups according to their technology absorptive capacity and then explores whether the effect of technology spillover from FDI inflow is dependent on technology...
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