搜索结果: 136-150 共查到“知识库 计算机科学技术其他学科”相关记录425条 . 查询时间(4.403 秒)
On the Reflected Geometric Brownian Motion with Two Barriers
Geometric Brownian Motion Stationary Distribution First Passage Time
2013/1/28
In this paper, we are concerned with Re?ected Geometric Brownian Motion (RGBM) with two barriers. And the stationary distribution of RGBM is derived by Markovian in?nitesimal Generator method. Consequ...
Tracking with Estimate-Conditioned Debiased 2-D Converted Measurements
Tracking Converted Measurements Kalman Filter Unscented Transformation
2013/1/28
This paper describes a new algorithm for the 2璂 converted-measurement Kalman filter (CMKF) which estimates a target抯 Cartesian state given polar position measurements. At each processing index, the ne...
A Collusion-Resistant Distributed Agent-Based Signature Delegation (CDASD) Protocol for E-Commerce Applications
Agent-Based Signature Delegation Anonymous Digital Signature Signature Fairness Collusion-Resistant Signature
2013/1/28
Mobile agent technology is promising for e-commerce and distributed computing applications due to its properties of mobility and autonomy. One of the most security-sensitive tasks a mobile agent is ex...
Transition Process in the Western Balkans: How Much Successful Is This Story?
The Western Balkans Transition Process Transition Crisis Macroeconomic Indicators Economic Development
2013/1/28
The last enlargement of the European Union put Western Balkans countries into focus of integration, and thus the countries became an area where future integration is expected. Future enlargement of th...
Combining a Safety Management Process with a Safety Framework
Safety Permit for Work Systems Engineering Power Industry Health and Safety Process Modelling Framework
2013/1/28
A safety document management system, known as a Permit for Work (PFW) system is used commonly in the Power Industry to provide appropriate safety conditions for those working on the generating system....
电子信息产品领域的本体构建与应用
领域本体构建 改进的骨架法 原型试验
2010/8/26
为了提高对于电子信息产品领域的技术性贸易壁垒（TBT）预警信息的搜索效率，通过改进传统的骨架法，设计了电子信息产品领域的技术性贸易壁垒预警本体结构和该领域本体所应用的预警信息搜索系统的框架；提出了系统所必需的语义推理以及搜索结果排序、自动文档摘要的算法，并开发了系统原型。试验结果表明，该系统在保证查准率的同时，较大程度地提高了搜索结果的查全率。
提出并实现了通过脚楦匹配方法来仿真人脚穿上鞋子的状态，能够直观、便利地检查和分析鞋类产品的舒适度。该方法包括三个步骤：首先，保持鞋楦的位置不动，调整脚型的位置，使其与鞋楦严格对齐；其次，基于轴线变形算法，对脚型进行略微变形，使其与鞋楦姿势匹配；最后，根据匹配结果生成脚楦多个截面的分析图,指导对鞋楦舒适度的分析和楦体修改。实验结果表明，该方法能够有效地检查鞋楦的舒适度，可应用到个性化定制业务。
Specific Inter-Cultural Features in On-Line Distribution
Specific Inter-Cultural Features On-Line Distribution
2010/9/25
Poon’s statement (1993) that "information is the lifeblood of tourism" is certainly one of the most quoted sources in the relevant scientific literature. And not without reason, as tourism proves to b...
基于K-means算法的学生试卷成绩分析
K-means 算法 聚类技术 学生成绩 成绩分析
2012/9/27
目前在教学管理中,通常采用算术平均线性划分法对学生成绩进行分析评价,难以准确地反映学生真实的学习情况.笔者运用 K-means 算法对上海市某高级中学某班的一次试卷成绩进行聚类,并对聚类结果进行了详细分析,为制定有效的教学及学习策略提供相关依据.
求解二级分销网络模型的混合微粒群算法
二级分销网络；混合微粒群算法；遗传算法；供应链
2011/1/17
针对现有算法在求解二级分销网络模型时计算量大、难以适用于求解大型规划问题和易陷入局部最优等不足，提出一种求解二级分销网络模型的混合微粒群算法。该算法以二级分销网络的总成本作为适应度函数，采用一种精简的编码方式，通过将遗传算法的变异和交叉操作引入微粒群算法，实现二级分销网络模型的离散优化。算例仿真结果表明：采用提出的算法能获得全局最优解，且收敛性好，运算速度快，稳定性好，能有效避免算法的早熟收敛问题...
模型网络度分布关于时间独立性的模拟和分析
复杂网络 度分布 时间独立性 计算机模拟
2012/9/27
鉴于现实网络的实证分析、不同模型的理论研究和模拟都集中在某个时间点的网络度分布,这势必导致一些研究具有一定的不完整性.通过对几种典型的复杂网络模型在不同时间点的计算机模拟,结果显示: BA 模型、H&K模型和加速复制模型的网络度分布是关于时间独立的,而变m 模型和年龄模型的网络度分布与时间相关的.这为实证研究工作提出一个新观点,即需要从不同时间点的角度来分析现实网络的一些普适性的特征,同时也为理论...
利用微带电路作成的行波管外平衡器的理论研究和实验工作已经完成。为了进一步改进行波管的性能,本文对平衡器的设计计算方法进行了讨论,改进设计了一个单级平衡器,使在2.8—7.0GHz的频带内增益起落从11.6dB降为2.74dB。同时提出不对称增益特性的双级复式补偿平衡器的概念和方法,设计和研制了一个双级平衡器。利用计算机对微波电路参量进行了优选调整后,在2.5—7.5GHz的频带内,增益起落从13....
A More Effective Technique of Design Synthesis for MEMS with Expected Performance
MEMS Design Synthesis Direct Solution Algorithm Genetic Algorithms Simulated Annealing Comparing
2013/1/28
A design synthesis technique based on sensitivity for Micro-Electro-Mechanical Systems (MEMS) proposed. This new technique can be called Sensitivity-Based Direct Solution Algorithm (DSA) of design syn...
Efficient Heuristic to Minimize Makespan in Single Machine Scheduling Problem with Unrelated Parallel Machines
Makespan Heuristic Unrelated Parallel Machines Mathematical Model ANOVA
2013/1/28
This paper discusses an efficient heuristic to minimize the makespan of scheduling n independent jobs on m unrelated parallel machines. The problem of scheduling the jobs on the unrelated parallel mac...
Lexicographic Constant-Weight Equidistant Codes over the Alphabet of Three, Four and Five Elements
Lexicographic Codes Equidistant Codes Constant-Weight Codes Bounds of Codes
2013/1/28
In this paper we consider the problem of finding bounds on the size of lexicographic constant-weight equidistant codes over the alphabet of three, four and five elements with 2 ≤ w < n ≤ 10. Computer ...