Results 51 to 60 of about 14,194 (154)
Query Complexity of Derivative-Free Optimization [PDF]
, 2012 This paper provides lower bounds on the convergence rate of Derivative Free Optimization (DFO) with noisy function evaluations, exposing a fundamental and unavoidable gap between the performance of algorithms with access to gradients and those with ...
Jamieson, Kevin G. +2 more
core +1 more source
Strong Converse for a Degraded Wiretap Channel via Active Hypothesis Testing
, 2014 We establish an upper bound on the rate of codes for a wiretap channel with public feedback for a fixed probability of error and secrecy parameter. As a corollary, we obtain a strong converse for the capacity of a degraded wiretap channel with public ...
Hayashi, Masahito +2 more
core +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.Abstract Directional data analysis plays a central role in paleomagnetism, where observations lie on a spherical surface. Existing methods for analyzing directional data often fail to incorporate prior physical knowledge about plate geodynamics, significantly constraining their potential.
F. Sapienza +4 more
wiley +1 more source
Chirality‐driven all‐optical image differentiation
Nanophotonics, Volume 14, Issue 27, Page 5449-5464, December 2025.Abstract Optical analog computing enables powerful functionalities, including spatial differentiation, image processing, and ultrafast linear operations. Yet, most existing approaches rely on resonant or periodic structures, whose performance is strongly wavelength‐dependent, imposing bandwidth limitations and demanding stringent fabrication tolerances.
Stefanos Fr. Koufidis +4 more
wiley +1 more source
List Decoding Bounds for Binary Codes with Noiseless Feedback
CoRRIn an error-correcting code, a sender encodes a message $x \in \{ 0, 1 \}^k$ such that it is still decodable by a receiver on the other end of a noisy channel. In the setting of \emph{error-correcting codes with feedback}, after sending each bit, the sender learns what was received at the other end and can tailor future messages accordingly. While the
Gupta, Meghal, Zhang, Rachel Yun
openaire +4 more sources
Ecosphere, Volume 16, Issue 10, October 2025.Abstract Ecological community data are used to infer levels of environmental stressors; for example, epiphytic lichen communities can be used to estimate levels of air pollutants. If stressors are so severe that the community of interest disappears altogether, then “empty” plots are recorded.
Adrienne Kovasi +2 more
wiley +1 more source
Non¿binary error correcting codes with noiseless feedback, localized errors, or both [PDF]
2006 IEEE International Symposium on Information Theory, 2006 We investigate non--binary error correcting codes with noiseless feedback, localized errors, or both. It turns out that the Hamming bound is a central concept. For block codes with feedback we present here a coding scheme based on an idea of erasions, which we call the {\bf rubber method}.
Rudolf Ahlswede +2 more
openaire +5 more sources
An Implicit Enumeration Approach for Maximum Ratio Clique Relaxations
Networks, Volume 86, Issue 3, Page 241-262, October 2025.ABSTRACT This article proposes an implicit enumeration approach to solve the maximum ratio s$$ s $$‐plex and the maximum ratio s$$ s $$‐defective clique problems. The approach is inspired by the classical Bron‐Kerbosch algorithm for enumerating all maximal cliques in a graph, which is extended to enumerating structures that are hereditary on induced ...
Yehor Blokhin +4 more
wiley +1 more source
Open and Closed Loop Approaches for Energy Efficient Quantum Optimal Control
Advanced Quantum Technologies, Volume 8, Issue 10, October 2025.Concepts from quantum thermodynamics and optimal control are blended to derive a theoretical framework to quantify and minimize the energetic cost of a pulse for unitary synthesis. Two complementary techniques (based on GRAPE and Reinforce‐DRL) are implemented as open‐source software that co‐optimizes the fidelity and energetic cost within quantum ...
Sebastiaan Fauquenot +2 more
wiley +1 more source
Nonlinear multimode photonics on‐chip
Nanophotonics, Volume 14, Issue 15, Page 2507-2548, August 2025.Abstract Nonlinear integrated photonics, which takes advantage of the strong field enhancement in integrated waveguides to boost the efficiency of nonlinear effects, has paved the way for the demonstration of cutting‐edge applications. These achievements have also been made possible by the impressive progress in material engineering and fabrication ...
Valerio Vitali +10 more
wiley +1 more source