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Search Results: 1 - 10 of 6343 matches for " Hengqing Tong "
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Dynamic Shortest Path Algorithm in Stochastic Traffic Networks Using PSO Based on Fluid Neural Network  [PDF]
Yanfang Deng, Hengqing Tong
Journal of Intelligent Learning Systems and Applications (JILSA) , 2011, DOI: 10.4236/jilsa.2011.31002
Abstract: The shortest path planning issure is critical for dynamic traffic assignment and route guidance in intelligent transportation systems. In this paper, a Particle Swarm Optimization (PSO) algorithm with priority-based encoding scheme based on fluid neural network (FNN) to search for the shortest path in stochastic traffic networks is introduced. The proposed algorithm overcomes the weight coefficient symmetry restrictions of the traditional FNN and disadvantage of easily getting into a local optimum for PSO. Simulation experiments have been carried out on different traffic network topologies consisting of 15-65 nodes and the results showed that the proposed approach can find the optimal path and closer sub-optimal paths with good success ratio. At the same time, the algorithms greatly improve the convergence efficiency of fluid neuron network.
Analysis of Psychological Health and Life Qualities of Internet Addicts Using Structural Equation Model  [PDF]
Qiaoling Tong, Xuecheng Zou, Hengqing Tong
Psychology (PSYCH) , 2010, DOI: 10.4236/psych.2010.11004
Abstract: Internet addiction disorder has become a serious social problem, and aroused great concern from the public and spe-cialists. In this paper, the psychological states of internet addicts are measured by some famous mental scales, and their life qualities are investigated by some questionnaires. Structural Equations Model (SEM) is used to analyze the relationship between the psychological health and life qualities of internet addicts. Meanwhile, a definite linear algorithm of SEM is proposed which is useful for psychological analysis.
Study on Psychological Crisis Evaluation CombiningFactor Analysis and Neural Networks  [PDF]
Hui Li, Yingbi Zhang, Hengqing Tong, Dongsheng Liu, Qiaoling Tong
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.22022
Abstract: Effective and rapid psychological crisis evaluation under emergency is the basis to carry out psychological crisis intervention. In this paper, based on existing research, an index system to evaluate the state of psychological cri-sis is established and the index system is simplified by the model combining factor analysis and neural networks. Experiments illustrate that the training times, training time and maximum error of the combination model are 1445, 20.476 (s), 0.0011 respectively while the general neural networks are 5581, 115.610 (s), 0.0090 with 92 samples and the final diagnosis by the combination model are also exact.
Evaluation of Venture Capital Based on Evaluation Model  [PDF]
Hengqing Tong, Yichao Pan, Yang Ye, Shudan Lu, Hengwen Liu
Technology and Investment (TI) , 2010, DOI: 10.4236/ti.2010.13023
Abstract: This paper studies evaluation problem in venture capital. Based on the venture capital and the actual evaluation work, we use an evaluation model proposed by us to evaluate the profitability of enterprises. We establish the impact of investment income and investment risk index system, corresponding to get observational data of the second order indexes. Evaluation model is a kind of generalized linear regression model with convex constraint, in which the dependent variable is unknown and regression coefficients all are calculated in accordance with samples instead of the prior designated. The least squares estimation of the model is given by the interactive projection algorithm between the convex sets, so as to provide a new analysis method for venture capital evaluation index system.
Analysis of Quality of Life in Cancer Patients by Structural Equation Model  [PDF]
Hengqing Tong, Shudan Lu, Yang Ye, Yichao Pan
Journal of Cancer Therapy (JCT) , 2010, DOI: 10.4236/jct.2010.12012
Abstract: Many people have been dead of cancer. The life quality of patients with cancer has aroused great concern from the public and specialists. In this paper, an index system of life quality is proposed to evaluate the quality of life, which includes 6 first-level indexes and 34 second-level indexes. Then, a structural equation model (SEM) based on these in-dexes and relationships among them is constructed for the analysis of quality of life in cancer patients. Furthermore, we offer a definite linear algorithm for the calculation of SEM. This method is more objective and scientific compared with traditional methods, such as descriptive analysis, some simple test methods and so on.
Analysis and Evaluation for Core Competence of Insurance Company Based on SEM  [PDF]
Hengqing Tong, Yang Ye, Yichao Pan, Shudan Lu, Jie Zhang
iBusiness (IB) , 2010, DOI: 10.4236/ib.2010.22021
Abstract: Evaluation the core competence reasonably plays an important role in the insurance company, it is related to whether the insurance can maintain a stable long-term competitive advantage or not, and whether obtain a stable long-term excess profits or not. In this paper, we select 6 first-degree indexes (including the core competence) and 28 second-degree indexes to evaluate the core competence of insurance company by Structural Equation Model (SEM), and analysis the relationships among the first-degree indexes. Besides, we use a new algorithm proposed by us to improve the calculation of SEM.
Evaluation of Social Risk Using Structural Equation Model  [PDF]
Wei Shan, Hengwen Liu, Yichao Pan, Hengqing Tong
iBusiness (IB) , 2010, DOI: 10.4236/ib.2010.22023
Abstract: A quantitative method to evaluate social risk using structural equation model (SEM) is developed. Evaluation of social risk is the essential step in early warning of social risk. On the basic of the society stability, a scientific and applicable index system of social risk is put forward, which includes 6 first-level indexes and 40 second-level indexes. Based on these indexes and relationships among them, a structural equation model is introduced, and an improved partial least square (PLS) algorithm by finding the best iterative initial value is proposed.
Exploration for matter stability & the material basis and mechanism for the interaction of light, electricity and magnetic  [PDF]
Zhengrong Tong
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.43028
Abstract: This paper is about the theory of “basic gravitinoes” (in early papers, it was referred to WG) in the material world, which make up the “dark matter” and the elementary particles as well. The strong interaction is generated by the Pressure Effect, which is resulted in the accumulation of the overall gravitation from all the galaxy gravitinoes. The Model for Stable-state Particle Basic Body indicates three stable states which correspond to protons, electrons and neutrons respectively and have been proven by all the particle collision experiments. It’s the root cause that only the short-lived particles resulted in the collisions. The study is supported by all experiments of light propagation, especially the wave-particle duality, and tries to make the theoretical interpretation for three laws of electromagnetic experiment so that the Maxwell’s field equations are derived ultimately and theoretically.
Valuation Adjustment Mechanism in M & A: Application, Analysis and Enlightenment  [PDF]
Tong Zhou
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.65051
Abstract: As a creative form of contract, the valuation adjustment mechanism is applied in M & A for many companies. Measures for Administration of Material Assets Reorganization of Listed Companies, which were adopted on November, 2014, required that listed companies must sign VAM with counterparty when pricing the assets. In M & A, the use of VAM can improve the efficiency and reduce the risk of failure. Based on the case of BlueFocus merged Accurate Sun, this paper thoroughly analyzes the structural design of VAM and its effects. Some suggestions are proposed in this paper in order to explain how to use VAM successfully.
Attentional Capture and Top-down Processes

Chu Hengqing,Zhou Xiaolin,

心理科学进展 , 2004,
Abstract: Attentional capture is of great importance in revealing the relationship between two kinds of attentional control: bottom-up processes and top-down processes. Two main experimental paradigms are used in the current research on attention capture: pre-cuing paradigm and visual search paradigm. This paper reviewed several aspects concering: 1) the relationship between stimulus-driven attention capture and top-down control; 2) whether spatial shift of attention is involved in attentional capture; 3) the role of perceptual saliency in attentional capture; 4) how experimental paradigms influence attentional capture. Studies in general showed that no visual stimulus can capture attention independently of top-down control. That is, attentional capture is defaulted as an automatic process, which can be inhibited or facilitated by endogenous modulation.
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