Papers by Author: Si Hua Chen

Abstract: The key to obtain an effective knowledge base to improve decision quality and enhance organizational core competency is integrating the knowledge from different subjects and sources. We put forward a knowledge integration strategy based on culture algorithm framework. It encodes the knowledge uniformly and evolutes among the two phases of population space and belief space. Through the communication protocol established among the two spaces, an effective and concise knowledge base is obtained. The experiment shows that comparing with traditional genetic algorithm the model can classify the knowledge more precisely, reduce redundant knowledge and remove contradictory knowledge.

Abstract: Aiming at the drawback of large calculation and slow convergent speed in BP algorithm, this paper proposes a new BP algorithm with the concept of error deviation rate. By carrying out serious methmatical deduction, the paper revises the the chain rule of traditional BP algorithm and proves its theoretical feasibility. Then, this paper applies it to Chinese stock market and has gained quite well convergent speed and predicting effect, consequently proving the new method’s effectiveness.

Abstract: This paper mainly discuss the negative externality problems involved in environmental logistics and the necessity of government regulation, and the government’s role in resolving negative externality. In the process of environmental logistics, around the interest distribution after the internalization of external cost, it exists a series of games among parties of logistics systems, including game between enterprises and environment, game between enterprises and game between government and enterprises. Through the analysis of game model, we conclude that environmental logistics cannot only rely on the market forces, the government should play a greater role. The economic incentives based on market are the most effective way to resolve negative externality and at the same time we should avoid rent-seeking behavior. The government should accelerate the process of environmental logistics in China by increasing the intensity of propaganda of environmental logistics, making evaluation standard of environmental logistics, carrying out financial subsidies on environmental logistics, and guiding enterprises participating the technology development of environmental logistics.