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Submodular Functions and Rooted Trees 子模函数与有根树
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-07-29 DOI: 10.1007/s00224-022-10092-x
Yaokun Wu, Yinfeng Zhu
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引用次数: 0
A Framework for Memory Efficient Context-Sensitive Program Analysis 一种内存高效的上下文敏感程序分析框架
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-07-18 DOI: 10.1007/s00224-022-10093-w
Mathias Hedenborg, Jonas Lundberg, Welf Löwe, M. Trapp
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引用次数: 2
The Complexity of the Distributed Constraint Satisfaction Problem 分布式约束满足问题的复杂性
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-07-08 DOI: 10.1007/s00224-022-10091-y
Silvia Butti, Víctor Dalmau

We study the complexity of the Distributed Constraint Satisfaction Problem (DCSP) on a synchronous, anonymous network from a theoretical standpoint. In this setting, variables and constraints are controlled by agents which communicate with each other by sending messages through fixed communication channels. Our results endorse the well-known fact from classical CSPs that the complexity of fixed-template computational problems depends on the template’s invariance under certain operations. Specifically, we show that DCSP(Γ) is polynomial-time tractable if and only if Γ is invariant under symmetric polymorphisms of all arities. Otherwise, there are no algorithms that solve DCSP(Γ) in finite time. We also show that the same condition holds for the search variant of DCSP. Collaterally, our results unveil a feature of the processes’ neighbourhood in a distributed network, its iterated degree, which plays a major role in the analysis. We explore this notion establishing a tight connection with the basic linear programming relaxation of a CSP.

本文从理论的角度研究了同步匿名网络上分布式约束满足问题的复杂性。在这种设置中，变量和约束由代理控制，这些代理通过固定的通信通道发送消息来相互通信。我们的结果支持经典csp中众所周知的事实，即固定模板计算问题的复杂性取决于模板在某些操作下的不变性。具体地说，我们证明了DCSP(Γ)是多项式时间可处理的当且仅当Γ在所有实态的对称多态下是不变的。否则，没有在有限时间内求解DCSP(Γ)的算法。我们还证明了同样的条件也适用于DCSP的搜索变体。此外，我们的结果揭示了分布式网络中过程邻居的特征，即其迭代程度，这在分析中起着重要作用。我们探索了这一概念，建立了与CSP的基本线性规划松弛的紧密联系。
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引用次数: 0
Non-Existence of Stable Social Groups in Information-Driven Networks 信息驱动网络中不存在稳定的社会群体
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-07-06 DOI: 10.1007/s00224-022-10089-6
A. Chaintreau, G. Ducoffe, Dorian Mazauric
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引用次数: 0
Holographic Algorithms on Domains of General Size 一般尺寸域上的全息算法
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-07-01 DOI: 10.1007/s00224-022-10088-7
Zhiguo Fu, Jin-Yi Cai
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引用次数: 0
Subclasses of Ptime Interpreted by Programming Languages 编程语言解释的Ptime子类
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-06-29 DOI: 10.1007/s00224-022-10074-z
Siddharth Bhaskar, Cynthia Kop, J. Simonsen
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引用次数: 2
Arithmetic Circuits, Structured Matrices and (not so) Deep Learning 算术电路、结构化矩阵和深度学习
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-06-24 DOI: 10.1007/s00224-022-10112-w
A. Rudra
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引用次数: 0
On Random Perfect Matchings in Metric Spaces with Not-too-large Diameters 直径不大的度量空间中的随机完美匹配
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-06-17 DOI: 10.1007/s00224-022-10087-8
Ching-Lueh Chang
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引用次数: 0
Special issue on algorithmic game theory (SAGT 2019) 算法博弈论特刊（SAGT 2019）
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-06-01 DOI: 10.1007/s00224-022-10086-9
Dimitris Fotakis, E. Markakis
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引用次数: 0
Factorizing Strings into Repetitions 将字符串分解为重复
IF 0.5 4区 计算机科学 Q4 COMPUTER SCIENCE, THEORY & METHODS
Theory of Computing Systems
Pub Date : 2022-04-01 DOI: 10.1007/s00224-022-10070-3
Hiroe Inoue, Yoshiaki Matsuoka, Yuto Nakashima, Shunsuke Inenaga, H. Bannai, M. Takeda
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引用次数: 1
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