Results 31 to 40 of about 1,379,053 (353)

Proof Compression and NP Versus PSPACE II: Addendum

open access: yesBulletin of the Section of Logic, 2022
In our previous work we proved the conjecture NP = PSPACE by advanced proof theoretic methods that combined Hudelmaier’s cut-free sequent calculus for minimal logic (HSC) with the horizontal compressing in the corresponding minimal Prawitz-style natural ...
Lew Gordeev, Edward Hermann Haeusler
doaj   +1 more source

Nonequilibrium statistical mechanics and optimal prediction of partially-observed complex systems

open access: yesNew Journal of Physics, 2022
Only a subset of degrees of freedom are typically accessible or measurable in real-world systems. As a consequence, the proper setting for empirical modeling is that of partially-observed systems.
Adam Rupe   +2 more
doaj   +1 more source

P Systems with Evolutional Communication and Division Rules

open access: yesAxioms, 2021
A widely studied field in the framework of membrane computing is computational complexity theory. While some types of P systems are only capable of efficiently solving problems from the class P, adding one or more syntactic or semantic ingredients to ...
David Orellana-Martín   +2 more
doaj   +1 more source

Computational Creativity and Aesthetics with Algorithmic Information Theory

open access: yesEntropy, 2021
We build an analysis based on the Algorithmic Information Theory of computational creativity and extend it to revisit computational aesthetics, thereby, improving on the existing efforts of its formulation.
Tiasa Mondol, Daniel G. Brown
doaj   +1 more source

Computational complexity of vacua and near-vacua in field and string theory [PDF]

open access: yesPhysical Review D, 2018
We demonstrate that the problems of finding stable or metastable vacua in a low energy effective field theory requires solving nested NP-hard and co-NP-hard problems, while the problem of finding near-vacua is in P.
James Halverson, Fabian Ruehle
semanticscholar   +1 more source

Proof of the Theory-to-Practice Gap in Deep Learning via Sampling Complexity bounds for Neural Network Approximation Spaces [PDF]

open access: yesFoundations of Computational Mathematics, 2021
We study the computational complexity of (deterministic or randomized) algorithms based on point samples for approximating or integrating functions that can be well approximated by neural networks.
P. Grohs, F. Voigtlaender
semanticscholar   +1 more source

A Computational Turn in Policy Process Studies: Coevolving Network Dynamics of Policy Change

open access: yesComplexity, 2022
The past three decades of policy process studies have seen the emergence of a clear intellectual lineage with regard to complexity. Implicitly or explicitly, scholars have employed complexity theory to examine the intricate dynamics of collective action ...
Maxime Stauffer   +5 more
doaj   +1 more source

Boundaries of computational complexity and optimal cluster’s quantity for controlled swarm in non-cooperative games [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
The purpose of the work is to determine the relationship between the computational complexity of controlling a swarm of particles and the available computational resources for choosing the optimal control strategy.
Kiselev, Oleg Михайлович
doaj   +1 more source

The Computational Complexity of Plethysm Coefficients [PDF]

open access: yesComputational Complexity, 2020
In two papers, Bürgisser and Ikenmeyer (STOC 2011, STOC 2013) used an adaption of the geometric complexity theory (GCT) approach by Mulmuley and Sohoni (Siam J Comput 2001, 2008) to prove lower bounds on the border rank of the matrix multiplication ...
N. Fischer, Christian Ikenmeyer
semanticscholar   +1 more source

Study of blockchain's consensus mechanism based on score

open access: yesIET Blockchain, 2021
The consensus mechanism is a key technology to achieve state consistency among distributed nodes and it determines the consensus efficiency and stability of the blockchain system.
Shaobin Cai   +3 more
doaj   +1 more source

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