基于POX交叉的遗传算法求解Job-Shop调度问题

通过改进传统的遗传算法求解Job—Shop调度问题。为基于工序的编码提出了一种新的POX交叉算子，并与其他交叉算子进行了比较以显示其高效性。为了保留父代的优良特征和减少遗传算子的破坏性，设计了一种子代交替模式的交叉方式。将提出的改进遗传算法应用于muth and thompson‘s基准问题的实验运行，显示该算法的有效性。     

分段式车间作业调度算法

车间作业调度问题是制造系统运筹技术、管理技术与优化技术发展的核心。本文对离散作业型 (Job Shop)车间中的作业调度问题做了探讨 ,并根据离散作业调度的阶段性提出了基于作业状态空间的逐段式车间作业调度算法。通过对一个实际车间作业调度仿真比较 ,此算法运算速度比最短加工时间 (SPT)和最少工作量剩余 (L WR)算法快 ,其调度结果具有可执行性     

基于混合遗传算法的车间调度问题的研究

作业车间调度问题是最困难的组合优化问题之一，也是计算机集成制造系统中的一个关键环节，在实际生产中具有广泛应用。为此，提出了实现车间调度的混合遗传算法的设计方案，把遗传算法与模拟退火算法相结合，充分发挥遗传算法良好的全局搜索能力和模拟退火算法有效避免陷入局部极小的特性。通过实验验证了基于GASA混合算法的作业车间调度方法显著提高了搜索效率，改进了收敛性能。     

基于客户定制生产的车间作业计划

以某离散型制造企业为对象,建立了一种基于客户定制生产的车间作业计划制定模型并给出相应的算法.通过作业优先级设置和工序时间平衡,达到在短时间内生成可用的作业计划.在此基础上,建立起相应的软件模块功能模型,描述了模块的基本功能.最后讨论了车间作业计划制定模型的局限性并给出了相应的解决方法.     

模具生产车间调度算法研究与实现

针对模具加工的特点,分析了其车间调度中的各种实际情况和约束关系,针对不同类型设备推导出了相应的调度公式。引入了“工时虚增值”的概念,并在此基础上提出和实现了相关的优先权值调度算法。实践证明,该算法具有良好的可行性和实际可靠性。     

A conflict-based priority dispatching rule and operation-based approaches to job shops

Job shop scheduling (JSS) problems consist of a set of machines and a collection of jobs to be scheduled. Each job consists of several operations with a specified processing order. In this paper, a job shop model problem is scheduled with the help of the Giffler and Thompson algorithm using a priority dispatching rule (PDR). A conflict based PDR is used to schedule the job shop model by using Genetic Algorithms (GAs). An iterative method is applied to the job model to find the optimal conflict-based PDR order and the operation sequence. The same job shop model is also scheduled based on an operation using simulated annealing (SA) and hybrid simulated annealing (HSA). A makespan of the job model is used as an objective. These four methods are considered as different solutions for each problem. A two-way analysis of variance (ANOVA) is applied to test its significance.     

分布式集群环境下作业流智能监控系统的研究

实时监控分布在企业内部网络集群系统上的各类作业的提交、运行及完成归档情况,是现代企业信息化管理的重要内容。本文提出并设计了一个基于分布式集群环境下的作业流监控系统,采用客户端/服务器(Client/Server,C/S)结构,客户端进行作业流的设计、提交及图形化显示,对作业从提交到返回执行结果的全过程进行控制;服务器端采用集群网络环境下的负载平衡策略,将作业分配到某台主机上进行实时处理,并将处理结果返回到客户端。经过实际企业应用测试,表明该系统能够较好的完成各类作业在异构集群计算机上的整个生命周期的智能监控任务。     

Job search website for illiterate users of Pakistan

Illiteracy is a major hurdle in socio-economic development of Pakistan. Research in the Information and Communication Technology (ICT) can help in tackling this issue by developing solutions tailored for illiterate population. The work presented within this paper proposes a job search website for illiterate population of KPK province of Pakistan. The designed website does not require any human assistance while searching a job. Moreover, the website uses culturally relevant graphical and audio content. The usability of the website is tested according to the ISO-9241-11 specification. Furthermore, we have studied the effect of the participants’ characteristics, i.e., their age, computer and mobile usage experience on the usability of the website. The results show that the participants found the website usable. Specifically, they could search suitable jobs with a minimal number of clicks and in less time as compared to the usual task completion rates reported throughout the literature. None of the participants’ characteristics were found to be affecting the usability of the website. These results suggest a promising potential of ICT solutions for providing services to illiterate population of Pakistan.     

Job satisfaction and job survival.

Using a job satisfaction questionnaire constructed on previous samples, mail questionnaires were sent to 2,710 insurance agents, of whom 990 made a return. From these, matched samples of 99 survivors and 99 terminated agents were compared. The results "indicated that certain attitudes held by agents are significantly related to the criterion of survival-termination. It was also found that the proportion of agents expressing dissatisfaction with a particular item was not related to whether or not that item was predictive of the criterion. The data show that the validation of signed job satisfaction questionnaires leads to a much different kind of interpretation of the responses than is obtained from anonymous questionnaires." (PsycINFO Database Record (c) 2010 APA, all rights reserved)