Search Results - Randomized query complexity
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The randomized query complexity of finding a Tarski fixed point on the Boolean hypercube
ISSN: 0012-365XPublished: Elsevier B.V 01.12.2025Published in Discrete mathematics (01.12.2025)“…—the original setting of the Knaster-Tarski theorem. We prove a lower bound that characterizes the randomized and deterministic query complexity of the Tarski search problem on the Boolean hypercube as Θ(k…”
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Journal Article -
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Quadratically Tight Relations for Randomized Query Complexity
ISSN: 1432-4350, 1433-0490Published: New York Springer US 01.01.2020Published in Theory of computing systems (01.01.2020)“…In this work we investigate the problem of quadratically tightly approximating the randomized query complexity of Boolean functions R ( f…”
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Towards Optimal Separations between Quantum and Randomized Query Complexities
ISSN: 2575-8454Published: IEEE 01.11.2020Published in Proceedings / annual Symposium on Foundations of Computer Science (01.11.2020)“… To date, separations of O(1) vs. \sqrt{N} between quantum and randomized query complexities remain the state-of-the-art…”
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Conference Proceeding -
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A Tight Composition Theorem for the Randomized Query Complexity of Partial Functions: Extended Abstract
ISSN: 2575-8454Published: IEEE 01.11.2020Published in Proceedings / annual Symposium on Foundations of Computer Science (01.11.2020)“…We prove two new results about the randomized query complexity of composed functions…”
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Conference Proceeding -
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Improved direct product theorems for randomized query complexity
ISSN: 1016-3328, 1420-8954Published: Basel SP Birkhäuser Verlag Basel 01.06.2012Published in Computational complexity (01.06.2012)“… . We prove the following direct product theorem (DPT) for query complexity: if every T -query algorithm has success probability at most in computing the Boolean function f on input distribution μ , then for α…”
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Journal Article -
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Lifting randomized query complexity to randomized communication complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 21.01.2018Published in arXiv.org (21.01.2018)“…\) under the uniform distribution and \(\mathrm{R}_{1/3}(f)\) (\(\mathrm{R}_{1/3}(f\circ g^n)\)) denotes the randomized query complexity of \(f…”
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Improved Direct Product Theorems for Randomized Query Complexity
ISBN: 9781457701795, 1457701790ISSN: 1093-0159Published: IEEE 01.06.2011Published in 2011 IEEE 26th Annual Conference on Computational Complexity (01.06.2011)“… We prove the following direct product theorem (DPT) for query complexity: if every T-query algorithm has success probability at most 1 - ε…”
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Conference Proceeding -
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Optimal Separation and Strong Direct Sum for Randomized Query Complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 02.08.2019Published in arXiv.org (02.08.2019)“…We establish two results regarding the query complexity of bounded-error randomized algorithms…”
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On the Composition of Randomized Query Complexity and Approximate Degree
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 11.07.2023Published in arXiv.org (11.07.2023)“…For any Boolean functions \(f\) and \(g\), the question whether \(R(f\circ g) = \tilde{\Theta}(R(f)R(g))\), is known as the composition question for the randomized query complexity…”
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Lower Bounds for Randomized and Quantum Query Complexity Using Kolmogorov Arguments
ISSN: 0097-5397, 1095-7111Published: Philadelphia, PA Society for Industrial and Applied Mathematics 01.01.2008Published in SIAM journal on computing (01.01.2008)“…We prove a very general lower bound technique for quantum and randomized query complexity that is easy to prove as well as to apply…”
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Journal Article -
11
Randomized query complexity of sabotaged and composed functions
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 05.12.2016Published in arXiv.org (05.12.2016)“…We study the composition question for bounded-error randomized query complexity: Is R(f o g) = Omega(R(f) R(g)) for all Boolean functions f and g…”
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12
A Strong XOR Lemma for Randomized Query Complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 17.07.2020Published in arXiv.org (17.07.2020)“…\), the randomized query complexity of computing the xor of k instances of g satisfies \(\overline{R}_\eps(xor\circ g) = \Theta(k \overline{R}_{\eps/k}(g))\). This matches…”
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13
When Is Amplification Necessary for Composition in Randomized Query Complexity?
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 19.06.2020Published in arXiv.org (19.06.2020)“…Suppose we have randomized decision trees for an outer function \(f\) and an inner function \(g…”
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14
Unambiguous Parity‐Query Complexity
ISSN: 1042-9832, 1098-2418Published: New York John Wiley & Sons, Inc 01.05.2025Published in Random structures & algorithms (01.05.2025)“…‐query complexity of the approximate majority problem—that is, on the lowest randomized parity…”
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Journal Article -
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Quadratically Tight Relations for Randomized Query Complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 02.08.2017Published in arXiv.org (02.08.2017)“…)\) is a complexity measure that is quadratically tight for the zero-error randomized query complexity \(R_0(f)\): \(C(f) \leq R_0(f) \leq C(f)^2…”
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A Composition Theorem for Randomized Query Complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 14.06.2017Published in arXiv.org (14.06.2017)“…Let the randomized query complexity of a relation for error probability \(\epsilon\) be denoted by \(R_\epsilon(\cdot)\). We prove that for any…”
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A Tight Composition Theorem for the Randomized Query Complexity of Partial Functions
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 07.12.2020Published in arXiv.org (07.12.2020)“…We prove two new results about the randomized query complexity of composed functions…”
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Towards Optimal Separations between Quantum and Randomized Query Complexities
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 29.12.2019Published in arXiv.org (29.12.2019)“… To date, separations of \(O(1)\) vs. \(\sqrt{N}\) between quantum and randomized query complexities remain the state-of-the-art (where \(N…”
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A New Minimax Theorem for Randomized Algorithms (Extended Abstract)
ISSN: 2575-8454Published: IEEE 01.11.2020Published in Proceedings / annual Symposium on Foundations of Computer Science (01.11.2020)“…The celebrated minimax principle of Yao (1977) says that for any Boolean-valued function f with finite domain, there is a distribution \mu over the domain of f…”
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Conference Proceeding -
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A composition theorem for randomized query complexity via max conflict complexity
ISSN: 2331-8422Published: Ithaca Cornell University Library, arXiv.org 27.11.2018Published in arXiv.org (27.11.2018)“…Let \(R_\epsilon(\cdot)\) stand for the bounded-error randomized query complexity with error \(\epsilon > 0\). For any relation \(f \subseteq \{0,1\}^n \times…”
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