共查询到20条相似文献,搜索用时 140 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
《电脑编程技巧与维护》2000,(1)
CA公司在中国的合资公司——北京冠群金辰软件有限公司日前与联想电脑有限公司达成协议,冠群金辰的主打产品——业界领先的反病毒软件KiLL for Windows 95/98专用版及其后续升级软件产品将与联想电脑的PC整机一起,进行捆绑销售。 双方协议,从1999年11月1日起,冠群金辰的反病毒软件KILL for Windows 95/98专用版将成为联 相似文献
10.
记者陈丽羡报道7月21日,由美国CA有限公司与公安部金辰公司合资成立的公司终于有了正式的名字“冠群金辰”,同时,合资公司的首项软件产品——Kill 98认证版正式投放市场,这是一个具有国际水准并适合中国用户需求的新一代反病毒产品。Kill 98认证版融合了CA公司国际领先的反病毒技术、底层无缝连接技术和金辰公司国内领先的反病毒技术。据了解,Kill 98认证版的核心层、底层及防治模块采用CA著名的Enoculan技术。而界面、病毒检测和治疗采用金 相似文献
11.
杨永国 《计算机测量与控制》2021,29(6):46-50
为了最大化的找出软件测试用例集中的相似用例,实现对用例的最优精简,提出了一种自适应的高斯混合模型;提出的模型使用K-means初始化EM,自适应地确定聚类簇数目,在此过程中能够评判聚类结果,同时给出式高斯混合模型的所有参数,这些参数作为各个聚类簇进行新一轮迭代计算的参数,最终得到的结果更趋于最优解;实验结果表明,相对现有的高斯混合模型和模糊K-Means聚类模型等算法,文章提出的自适应高斯混合模型算法能够最小化软件测试用例集,约简后的用例所覆盖的范围相对更广,测试出的软件错误率较高,对软件测试用例集多变的适应性好。 相似文献
12.
本课题设计了基于DDE的VB、Excel和Matlab的发酵过程优化软件平台,并将该软件平台应用到多粘菌素发酵过程PH值的寻优。实践表明:该优化软件平台能够确定发酵过程被控参数的优化轨线,为优化控制提供一个主要目标。 相似文献
13.
In this paper, we present a model for software effort (person-month) estimation based on three levels Bayesian network and 15 components of COCOMO and software size. The Bayesian network works with discrete intervals for nodes. However, we consider the intervals of all nodes of network as fuzzy numbers. Also, we obtain the optimal updating coefficient of effort estimation based on the concept of optimal control using Genetic algorithm and Particle swarm optimization for the COCOMO NASA database. In the other words, estimated value of effort is modified by determining the optimal coefficient. Also, we estimate the software effort with considering software quality in terms of the number of defects which is detected and removed in three steps of requirements specification, design and coding. If the number of defects is more than the specified threshold then the model is returned to the current step and an additional effort is added to the estimated effort. The results of model indicate that optimal updating coefficient obtained by genetic algorithm increases the accuracy of estimation significantly. Also, results of comparing the proposed model with the other ones indicate that the accuracy of the model is more than the other models. 相似文献
14.
研究提高软件质量问题,软件质量是一种智力产品,质量度量属性较多,传统神经网络无法准确提取最优度量软件质量属性,预测准确率低。为了提高软件质量预测准确率,将遗传算法引入到软件质量度量属性选择中。首先采用遗传算法选择最优软件质量度量属性,然后将度量属性输入神经网络进行训练,建立软件质量预测模型。通过仿真对模型性能进行测试,结果表明,遗传神经网络对软件质量预测模型降低软件质量预测错误率,提高预测准确率,在理论和实际上都具有创新性。 相似文献
15.
针对软件可靠性分配问题中求解全局最优解的困难,在保证系统开发费用最低的前提条件下,将可靠性指标分配到每个模块中,并利用一种新的智能优化算法——社会认知算法来搜索模型的最优解。实验结果表明了社会认知算法在求解软件可靠性分配问题中的有效性。 相似文献
16.
17.
基于遗传算法的模糊控制器的综合优化设计 总被引:9,自引:1,他引:9
该文简要叙述了模糊控制器的优化设计原理,提出了一种采用遗传算法对模糊控制器的量化因子、比例因子、隶属函数的参数和模糊控制规则进行综合优化的设计方法,并采用VisualC++6.0编制了相应的软件,该软件已成功地应用于工程中。此外,该软件也可作为遗传优化和模糊控制器设计的辅助教学软件。 相似文献
18.
基于非马尔可夫随机Petri网的软件再生建模与分析 总被引:2,自引:0,他引:2
软件老化是影响软件系统可靠性的重要潜在因素,软件再生作为一种主动预防性的软件容错技术是解决软件老化问题的主要手段.以往的随机Petri网再生模型假定所有变迁的实施时间服从指数分布.针对变迁的实施时间服从确定性分布或一般性分布的情况,文中提出了一种用非马尔可夫随机Petri网建立软件再生模型的方法.该方法采用马尔可夫再生理论对模型进行分析,并给出模型的瞬态解和稳态解.仿真实验表明:选择合适的软件再生周期,可以有效地降低存在老化的软件系统的平均宕机成本,提高系统的可用性和可靠性. 相似文献
19.
Allocation of efforts to a software development project during the testing phase is a multifaceted task for software managers. The challenges become stiffer when the nature of the development process is considered in the dynamic environment. Many software reliability growth models have been proposed in last decade to minimise the total testing-effort expenditures, but mostly under static assumption. The main purpose of this article is to investigate an optimal resource allocation plan to minimise the cost of software during the testing and operational phase under dynamic condition. An elaborate optimisation policy based on the optimal control theory is proposed and numerical examples are illustrated. This article also studies the optimal resource allocation problems for various conditions by examining the behaviour of the model parameters and also suggests policy for the optimal release time of the software. The experimental results greatly help us to identify the contribution of each selected parameter and its weight. 相似文献
20.
Han-Saem Yun Jihong Kim Soo-Mook Moon 《International journal of parallel programming》2003,31(5):339-391
Software pipelining is widely used as a compiler optimization technique to achieve high performance in machines that exploit instruction-level parallelism. However, surprisingly, there have been few theoretical or empirical results on time optimal software pipelining of loops with control flows. In this paper, we present three new theoretical and practical contributions for this underinvestigated problem. First, we propose a necessary and sufficient condition for a loop with control flows to have an optimally software-pipelined program. We also present a decision procedure to compute the condition. As part of the formal treatment of software pipelining, we propose a new formalization of software pipelining. Second, we present two software pipelining algorithms. The first algorithm computes an optimal solution for every loop satisfying the condition, but may run in exponential time. The second algorithm computes optimal solutions efficiently for most (but not all) loops satisfying the condition. The former one proves the sufficiency of the condition and the latter one suggests a practical optimal software pipelining algorithm. Third, we present experimental results which strongly indicate that achieving the time optimality in the software-pipelined programs is a viable goal in practice with reasonable hardware support. 相似文献