故障容错模式系统

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"这篇文档是关于故障容错技术的模式系统，主要介绍了一些经过实践验证的著名技术，并通过分类体系组织起来，旨在揭示这些模式之间的关系以及如何相互完善，为不同效率和复杂度的容错系统开发提供设计框架。关键词包括设计框架、故障容错模式和模式分类。" 在计算机系统设计中，故障容错是一个至关重要的领域，它确保了即使在硬件或软件出现故障的情况下，系统仍能保持正常运行。"A System of Patterns for Fault Tolerance" 是Titos Saridakis的研究成果，他来自诺基亚研究中心，该研究旨在提供一种模式化的方法来理解和应用故障容错技术。 论文的核心是将过去三十年中发展、应用和优化的各种故障容错技术转化为可复用的模式。这些模式是解决反复出现的设计问题的通用解决方案。通过将它们分类并构建为一个系统，作者揭示了这些模式之间的相互关联，这有助于开发者理解如何结合使用这些模式来增强彼此的性能。 模式分类可能是基于不同的容错策略，如冗余、检测和恢复机制等。例如，可能包括主-备复制模式，其中系统有一个活动组件和一个备用组件，当主组件失败时，备用组件可以接管；还有检查点模式，用于定期保存系统状态，以便在故障后能够恢复。 此外，文档还讨论了这些模式如何相互细化，形成了一种设计框架。这意味着开发者可以根据特定系统的性能和复杂性需求，选择和组合不同的容错模式。这种框架使得故障容错系统的开发更加系统化和模块化，提高了设计效率。 关键词“Design Framework”强调了这个系统的结构化方法，它为设计过程提供了指导，确保了容错解决方案的合理性。“Fault Tolerance Pattern”指的是特定的故障处理策略，这些策略已经过形式化和标准化，便于重复使用。“Pattern classification”则涉及如何将这些模式归类，以便于理解和应用。 这份文档为故障容错技术的实践者提供了一个宝贵的工具，他们可以通过理解和利用这些模式来构建更健壮、更可靠的系统，从而降低因硬件或软件故障导致的服务中断风险。

Fault tolerant systems design

2011-05-23 上传
Fault tolerant systems design

将用sort函数数组X中元素S字母按照a,..,z的顺序排列 matlabS = 'Scientists look for universal patterns of complex systems because such invariant features may help to unveil the principles of system organization Complex network studies can not only provide a unique viewpoint of nature and society but also reveal ubiquitous patterns, e.g. small world and scale free, characteristic of various complex systems. However, ecological studies have shown that binary food webs, which depict trophic interactions in ecosystems, refuse to become part of the small world and scale free networks family. Although some common features, including "two degrees separation", which means the very small average distance, are shared among food webs, other meaningful attributes such as degree distribution and clustering coefficient change with the size and complexity (connectance)of the network.';

2023-07-11 上传
S = 'Scientists look for universal patterns of complex systems because such invariant features may help to unveil the principles of system organization Complex network studies can not only provide a ...

求一个数组X，其中X中的元素是S中的字母按照a,..,z的顺序排列(利 用Sort函数,lower函数）。求数组Y，其中Y(1)表示a出现的次数， Y(2)表示b出现的次数......S = 'Scientists look for universal patterns of complex systems because such invariant features may help to unveil the principles of system organization Complex network studies can not only provide a unique viewpoint of nature and society but also reveal ubiquitous patterns, e.g. small world and scale free, characteristic of various complex systems. However, ecological studies have shown that binary food webs, which depict trophic interactions in ecosystems, refuse to become part of the small world and scale free networks family. Although some common features, including "two degrees separation", which means the very small average distance, are shared among food webs, other meaningful attributes such as degree distribution and clustering coefficient change with the size and complexity (connectance)of the network.';

2023-07-11 上传
S = 'Scientists look for universal patterns of complex systems because such invariant features may help to unveil the principles of system organization Complex network studies can not only provide a ...

random pattern resistant faults

2023-05-26 上传
These techniques aim to improve the reliability and fault tolerance of digital circuits, especially for safety-critical applications such as aerospace, automotive, and medical devices.

Comparison of calibration patterns for camera calibration这篇文献能查到吗

2023-07-12 上传
很抱歉，由于我不能直接浏览互联网或提供特定文献的访问权限，我无法为您提供直接的文献访问链接。您可以尝试通过学术搜索引擎（如Google学术搜索、百度学术搜索等）或在线图书馆检索该文献的全文。...

(d,τ)-robustness: A pattern α is (d, τ)-robust if d is the maximum number of items that can be removed from α for the resulting pattern to remain a τ-core pattern of α • For a (d,τ)-robust pattern α, it has core patterns • A colossal pattern tends to have a large number of core patterns • Pattern distance: For patterns α and β, the pattern distance of α and β is defined to be • If two patterns α and β are both core patterns of a same pattern, they would be bounded by a “ball” of a radius specified by their core ratio τ • Once we identify one core pattern, we will be able to find all the other core patterns by a bounding ball of radius r(τ) Ω(2d ) α β α β α β D D D D Dist ∪ ( , ) =1− ∩ Dist(α,β ) ≤1− 2 /τ 1 −1 = r(τ ) Robustness of Colossal Patterns翻译解释概念

2023-06-12 上传
这段文字主要在讨论关于频繁模式挖掘中的巨型模式的强健性和核心模式的概念。其中，作者引入了(d,τ)-robustness的概念，即如果从模式α中最多删除d个项，得到的模式仍然是α的τ-core模式，则称模式α是(d,τ)-...

Example: Core Patterns • A colossal pattern has far more core patterns than a small-sized pattern • A colossal pattern has far more core descendants of a smaller size c • A random draw from a complete set of pattern of size c would more likely to pick a core descendant of a colossal pattern • A colossal pattern can be generated by merging a set of core patterns翻译

2023-06-12 上传
这个例子主要在说明巨型模式的核心模式数量远远多于小模式，并且可以通过合并一组核心模式来生成巨型模式。作者给出了一个交易数据集以及它们的核心模式集合。在这个例子中，我们可以看到，对于巨型模式"abcef"，它...

这一段讲的是什么：Abstract—A recent trojan attack on deep neural network (DNN) models is one insidious variant of data poisoning attacks. Trojan attacks exploit an effective backdoor created in a DNN model by leveraging the difficulty in interpretability of the learned model to misclassify any inputs signed with the attacker’s chosen trojan trigger. Since the trojan trigger is a secret guarded and exploited by the attacker, detecting such trojan inputs is a challenge, especially at run-time when models are in active operation. This work builds STRong Intentional Perturbation (STRIP) based run-time trojan attack detection system and focuses on vision system. We intentionally perturb the incoming input, for instance by superimposing various image patterns, and observe the randomness of predicted classes for perturbed inputs from a given deployed model—malicious or benign. A low entropy in predicted classes violates the input-dependence property of a benign model and implies the presence of a malicious input—a characteristic of a trojaned input. The high efficacy of our method is validated through case studies on three popular and contrasting datasets: MNIST, CIFAR10 and GTSRB. We achieve an overall false acceptance rate (FAR) of less than 1%, given a preset false rejection rate (FRR) of 1%, for different types of triggers. Using CIFAR10 and GTSRB, we have empirically achieved result of 0% for both FRR and FAR. We have also evaluated STRIP robustness against a number of trojan attack variants and adaptive attacks. Index Terms—Trojan attack, Backdoor attack

2023-07-24 上传
这段摘要讲述了关于深度神经网络（DNN）模型的特洛伊木马攻击。特洛伊攻击是一种数据污染攻击的变种，通过利用学习模型的难以解释性，在DNN模型中创建一个有效的后门，以便将任何使用攻击者选择的特洛伊触发器进行...

Internet of Things for Smart Cities

2023-04-30 上传
The Internet of Things (IoT) is a network of interconnected devices, sensors, and machines that can communicate with each other and exchange data over the internet. Smart cities use IoT technologies ...

Assignment patterns must be on the left side of assignment

2023-05-16 上传
For example, the following code will raise the "Assignment patterns must be on the left side of assignment" error because we are trying to assign the value of 5 to the expression `a + b`: ``` a = 1 b...
假如梵高是飞行员
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