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Workflow engine is the core of the workflow management system. in order to adapt people's practical application of the new requirements of the workflow, the J2EE environment can be used in EJB components to deal with the problems of workflow engine design. Realize the dynamic configuration changes during the engine running and running before, and the interface layer through interactive features. This...
High frequency financial data possess unique features absent in data measured at lower frequencies, and analysis of these data poses interesting and unique challenges to econometric modeling and statistical analysis. The Traditional outlier detection method is based on statistical models, such as ARMA and ARCH, which require special hypotheses and are inappropriate to apply to high frequency data...
According to the user's access sequence, whether clustering can extracte the effectively user's interest model is closely related to the algorithm of identifying user's access affairs and clustering. This paper fully consider the impact on user interest mining of the topology and order of web papers. So, this paper advanced AER algorithm, new similarity formula and FCR algorithm. Finally, this paper...
In objective-based data farming, decision variables of the Red Team are evolved using evolutionary algorithms such that a series of rigorous Red Team strategies can be generated to assess the Blue Team's operational tactics. Typically, less than 10 decision variables (out of 1000+) are selected by subject matter experts (SMEs) based on their past experience and intuition. While this approach can significantly...
In this work, a dynamic model of S. vulgaris shrubs under drought stress was discussed based on improved dual-scale automaton model with the data from experiments. Relationship of groundwater level and growth of S. vulgaris has been confirmed by computing the growth rate of tree height and radius growth on drought. The growth probability has been given with segment function in different condition...
A control-oriented dynamic model for a ball mill coal-pulverizing system (BMCPS) has been developed by using mechanism analysis and experiment identification. The nonlinear equations are obtained based on simplified physical model and previous efforts in BMCPS modeling. Through computation of known physical values, identification of grouped coefficients, and heuristic adjustments, the model parameters...
Simulations of epidemic spread is an appealing approach to design intervention programs against influenza epidemic. Agent-based approach is particularly useful, since it enable us to administrate and evaluate effectiveness of various intervention measures in the simulated city. On the other hand, observation date are obtained as macroscopic information. Hence, we need to extract some macroscopic information,...
To provide a broader education for Operational Research PhD students in the UK, the Engineering and Physical Sciences Research Council funds the National Taught Course Centre for Operational Research (NATCOR). This is an initiative led by six UK universities and includes a one-week, residential simulation module taught for the first time in July 2009. We describe the background to NATCOR, summarize...
Trust network is a direct network which represents the trust of one person to the others, and it can be used to calculate trust propagation score. P2P network which lacks of central point and uses general global calculation of trust propagation is not good for the safety and the user privacy of P2P network which is based on trust. Aiming at the classic trust propagation scheme, this paper proposes...
The development of virtual roaming system is an important application of virtual reality technology. The purpose of this paper is to implement a three-dimensional virtual environment to display the campus of the College as a reference. During the process we made various models of the campus by using 3ds Max and set up the virtual roaming system by using Cortona VRML. We also discussed a general design...
This paper was to investigate the application of item response theory to specify an appropriate item response model for the equating of the mixed-format of multiple-choice items and open-ended items, since equating is the precondition of the development of an item bank for the Computer-Based College English Placement Test. It was shown that the equating approach based on common-item nonequivalent...
In personalized education theory, each learner has different behavioral characteristics. From this perspective, the biggest shortcoming of the Chinese learning website is that it couldn't reflect the individuality. Although some websites have classification of Chinese learners, most of them are based on the initial registration information. This paper proposes a grouping algorithm for Chinese learners...
Firstly, the limitation of the existing model construction methods is analyzed. Secondly, formal representation of decision problem is given. Thirdly the construction method of decision model based on formalization representation of decision problem is proposed. Then, the model construction process of the method is discussed in detail in terms of description model and problem model.
Managing university academic resources is a complex administrative problem. Typically, the admission capacity for a degree program is decided based on the availability of lecturers, total enrolled students, and the available facilities in the university. The common formula used is the lecturer to student ratio. But often, the decision is either based on short term requirements which lacks the bird...
Based on the review of the traditional methods for evaluating bids in project, this paper analyzed the advantages and disadvantages of four types of traditional evaluation methods. From this, detailed the principles and specific steps of the project bids evaluation model, which is based on the victor angle cosine model. On the basis of these, used the numerical example to analyze, showing that this...
Experiment teaching for Industrial Engineering (IE) was an important component of IE teaching, traditional experiment equipment and method had revealed many limitations. In this paper, Virtual technology was applied to experiment teaching for IE according to IE curriculum requirement, virtual experimentation platform for IE was developed. New lab management system was developed, this provided a reference...
Teachers play an important role in the education of universities. The quality of teachers stands for the level and quality of education in a certain degree. Most of current statistics and analyzing systems can't meet the demand of universities. In this paper, a university teacher information analyzing system based on MDA is proposed. Compared with the traditional software development, we firstly define...
During the engineering design and teach about engineering drawing, it is often to help our thinking in space by model, when we read or draw engineering design. Special manufacture and easy damage result of high cost of making and remaining. In this paper, a new method is put forward to develop the model library by combining Cult3D and online management, which take use of advantages of network in share...
The network dynamic evaluation is in the proven prescription legal science has truthfully given the trusted degree of the network from the real network to the simulation experiment evaluation concrete model and the realization process. The network modelling process uses the extraction real network data, establishes the simulation environment, under the simulation environment destructive collapse test...
Advanced computer systems can be reached from everywhere in higher education institutions. Quick development of hardware and software resources needs frequent revising of concepts and methods for the application of computers at teaching and learning processes. The authors of this paper joined to efforts for creating concepts and method for the practical application of known higher university course...
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