A Multi-Agent Approach for Solving Traveling Salesman Problem

The traveling salesman problem （TSP） is a classical optimization problem and it is one of a class of NP- Problem. This paper presents a new method named multiagent approach based genetic algorithm and ant colony system to solve the TSP. Three kinds of agents with different function were designed in the multi-agent architecture proposed by this paper. The first kind of agent is ant colony optimization agent and its function is generating the new solution continuously. The second kind of agent is selection agent, crossover agent and mutation agent, their function is optimizing the current solutions group. The third kind of agent is fast local searching agent and its function is optimizing the best solution from the beginning of the trial. At the end of this paper, the experimental results have shown that the proposed hybrid ap proach has good performance with respect to the quality of solution and the speed of computation.     

一种改进的蚁群算法用于灰色约束非线性规划问题求解

针对灰色约束非线性规划问题,设计了一种改进蚁群算法．该算法采用了正反馈机制。在对灰色约束非线性规划问题白化处理后,将罚函数方法引入到目标函数中,同时给出了改进蚁群算法的仿真流程．实例应用表明,将改进后的蚁群算法应用于灰色约束非线性规划问题的求解是可行有效的。     

An exact solution for a normal point source problem

This paper presents an exact algebraic solution for a normal point source problem on elastic half-space due to impact pulse by adopting the Cagniard-Hoop method and improving Pekeris‘ partial fraction decomposition means.     

我国小城镇建设与乡镇企业改革发展过程中存在的主要问题的对策

结合我国实际,对小城镇建设与乡镇企业改革发展中存在的主要问题进行系统、深入的分析,并提出了小城镇建设与乡镇企业改革发展的“四化”标准、“三战略”选择及两者政策的结合等发展思路。     

浅谈“问题解决“教学

问题解决自提出以来就受到数学教育界的普遍关注。本文简述了“问题解决“教学的意义,着重从问题解决的影响因素出发阐述如何进行有效的“问题解决“教学,并指出了“问题提出“的重要性。     

对求解整数规划方法的新探索

借鉴分枝定界法求解整数规划的基本原理和目标排序法求解0-1规划的思路,在完成一系列理论分析和证明之后,提出求解整数规划的简捷有效的新方法-松驰最优解邻域整点搜索法。     

函数递归调用问题的简化读程方法

函数的递归调用是面向过程的程序设计中一个难点问题。由于递归算法的实现过程是一张错综复杂的“网”,常常使读程序者理不清头绪。本文采用了全新的思维模式,以“树”的方式代替了原来的“网”,从而使这一问题的解决变得简单化。     

云南省金沙江流域生态环境建设的问题与对策研究--长江上游生态屏障建设重点地区调查报告之一

生态环境保护和建设是我国西部大开发的重要战略之一。云南省金沙江流域是长江上游生态脆弱地区,也是生态环境保护和建设的重点地区．在实地调研的基础上分析云南省金沙江流域地区的生态环境状况,探讨该区域生态环境建设中存在的主要问题,并提出了进一步加强该地区生态环境建设的对策建议．     

Power-Based Arbitrary Decisional Actions in the Resolution of MIS Project Issues: A Project Manager's Action Research Perspective

As a management information systems (MIS) project manager and an action researcher, the author examined, over time, the influence on information system development (ISD) of the informal sociopolitical organizational actions. The paper reports two cases of action research findings concerning the effect on ISD project implementation processes of power-based arbitrary decisional actions in bureaucratic environments. The research focused on the relationship of such unilateral actions to the interconnected subprocesses of deliberate and conscious attempts by the ISD project members to define and resolve system implementation issues. A suggested conceptual framework for the issue-resolution processes (IRP's) and obstacle-coping processes (OCP's) is based on the author's IRP/OCP-related behavioral constructs and theoretical models dealing with soft-systems issues, especially appreciative system theory and soft-systems methodology, and innovative flexible, "complementarist" (Sinn, 1998) or pluralist problem-solving approaches.     

电脑千年虫问题的解决方法分析与实践

千年虫问题是电脑系统以２位存储年份而产生的在２０００年后不能正确识别年份的问题,解决千年虫问题的根本就是解决年份的存储和识别问题,本文综合分析了目前常用的解决千年虫问题的几种方法,及其特点、复杂性及成本,最后介绍了我们在实际解决应用系统千年虫问题上的实践。