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1.
介绍了基于策略的网络管理的概念和当前的研究状况,在策略定义、冲突检测和系统安全问题等方面进行了讨论,提出了一种适合基于策略的网络管理的结构方案,并分析了该方案的合理性。 相似文献
2.
We deal with a complex game between Alice and Bob where each contender’s probability of victory grows monotonically by unknown amounts with the resources employed. For a fixed effort on Alice’s part, Bob increases his resources on the basis of the results for each round (victory, tie or defeat) with the aim of reducing the probability of defeat to below a given threshold. We read this goal in terms of computing a confidence interval for the probability of losing and realize that the moves in some contests may bring in an indeterminacy trap: in certain games Bob cannot simultaneously have both a low probability-of-defeat measure and a narrow confidence interval. We use the inferential mechanism called twisting argument to compute the above interval on the basis of two joint statistics. Careful use of such statistics allows us to avoid indeterminacy. 相似文献
3.
多机器人通信中防冲突方法研究 总被引:1,自引:1,他引:0
研究多个机器人通信中的冲突问题。针对当有针对当对机器人同时进行通信的时候,一个机器人可能同时接受多个其它机器人发来的指令,在时域指令信号方面形成冲突,造成机器人之间通信成功率不高的问题。为了解决这个问题,提出冲突自调整多机器人通信方法,算法利用新到达指令填充离开指令造成的空闲时隙,解决时域信号冲突。利用捎带检测技术,提前对下个时隙进行调整,进行空闲时间预留,减少空闲时隙的产生。很好地减少空闲时隙,解决由此带来的通信成功率不高的问题。实验结果表明,这种方法在多个机器人同时通信的情况下,能够很好地协调通信关系,避免指令冲突,提高了多机器人的通信成功率。 相似文献
4.
陈欣豪 《计算机光盘软件与应用》2012,(2):104+102
防火墙是作为网络中最常用的安全屏障以代理技术、包过滤技术、状态检查技术、网络地址转换技术(NAT)、VPN技术等功能,保证了计算机的安全性。Internet防火墙可以有效防止外部用户非法使用内部网的资源,加强网络与网络间的访问控制,从而阻止防火墙所保护的内部网络的私密数据被外人所窃取或更改。 相似文献
5.
Drawing upon a relationship quality framework, this study identifies how satisfaction, trust and different styles of handling conflict influence online buyers’ participation intentions in reputation systems associated with a C2C online shopping platform. Furthermore, we investigate how these effects are moderated by social conformity and the perceived value of knowledge. The results of a survey of 269 online buyers indicate that satisfaction, trust and an accommodating conflict handling style positively impact the intention to submit positive ratings, whereas an avoiding conflict handling style negatively affects the intention to submit positive ratings. Implications and suggestions for future research are provided. 相似文献
6.
Quantifying Whitewater Recreation Opportunities in Cataract Canyon of the Colorado River,Utah: Aggregating Acceptable Flows and Hydrologic Data to Identify Boatable Days 下载免费PDF全文
The structural norm approach was combined with the Potential for Conflict Index to define recreation streamflow needs for the Colorado River in Utah and Colorado. An online survey was completed by 128 commercial and non‐commercial boaters, who evaluated a range of flows for whitewater boating. For the Cataract Canyon reach, respondents rated the quality of their recreation experience of specific flows, describing the quality of boating opportunities across the full range of historical streamflows. Ranges for both acceptable and optimum flows were defined, as well as thresholds for unacceptable flows. These ranges were then evaluated against historical hydrologic records to quantify the timing, frequency, and duration of days when defined whitewater flows exist across different year types (i.e. average boatable days). Results indicated that on average, a total of 257 boatable days existed in dry years, and 353 total boatable days occurred in dry‐typical years. In wet and wet‐typical years, 362 and 365 total boatable days respectively, occurred on average. Results of the boatable days' analysis indicated that over the 23‐year period of record, whitewater boating opportunities occurred nearly every day of the year in all but the driest year types. Results from this study provide resource managers with information which can be used in the development of annual operating plans for the Colorado River Basin and help managers understand how changes in flow impact the quality of recreational opportunities. This application demonstrates the value of analysing boatable days on any river where recreation management is a priority. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
7.
The HUB-CI model is investigated in a telerobotic system in a client/server network to manage the lifecycle of engineering design and prototyping. The purpose of this platform is to support collaborative engineering design and proof of concept to enhance distributed team collaboration and resource utilization. The suggested platform is exemplified in two collaboration support tools and a physical prototyping platform. Structured Co-Insight Management is developed to support innovative idea exchanges and the consensus decision-making during the design process. Conflict/error detection management helps preventing conflicts and errors during the lifecycle of design and development. Physical collaboration over the network occurs when a team controls the telerobot operation during prototyping and testing in design cycles. A pilot system is implemented with a group project for the design of an electronic circuit (including both hardware and software designs). The functional assessment method is used to compare this platform to other collaborative design tools. The system presented offers unique qualitative advantages as an integrated collaboration support system. 相似文献
8.
大气层内姿控式直接侧向力控制导弹末制导系统存在气动力控制与复合控制之间的切换,在这种特殊情形下引入有限时间广义H2方法进行脱靶量分析.根据复合控制导弹末制导系统数学模型,研究了切换情形下的零效脱靶量与制导系统关键参数之间的关系,分析了直接侧向力启控时间、有效导航比、修正比例导引系数以及目标估计环节时间常数对零效脱靶量的影响.分析结果为制导末端直接侧向力启控时间的确定和修正比例导引律参数的选择提供了有力依据. 相似文献
9.
多核处理器上共享缓存使用效率,即程序局部性是影响并行程序性能的关键因素之一。提出了以足迹为基础的局部性理论。介绍了缺失率、重用距离和足迹之间的转化关系,并利用足迹可组合性特征建立了并行程序局部性预测模型。 相似文献
10.