Results 21 to 30 of about 305,625 (281)

Greedy Codes

open access: yesProceedings. IEEE International Symposium on Information Theory, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brualdi, Richard A, Pless, Vera S
openaire   +1 more source

Effect of Objective Function on Data-Driven Greedy Sparse Sensor Optimization

open access: yesIEEE Access, 2021
The problem of selecting an optimal set of sensors estimating a high-dimensional data is considered. Objective functions based on D-, A-, and E-optimality criteria of optimal design are adopted to greedy methods, that maximize the determinant, minimize ...
Kumi Nakai   +4 more
doaj   +1 more source

Collapsing Superstring Conjecture [PDF]

open access: yes, 2019
In the Shortest Common Superstring (SCS) problem, one is given a collection of strings, and needs to find a shortest string containing each of them as a substring. SCS admits 2 11/23-approximation in polynomial time (Mucha, SODA\u2713).
Golovnev, Alexander   +4 more
core   +2 more sources

Lazier Than Lazy Greedy [PDF]

open access: yes, 2014
Is it possible to maximize a monotone submodular function faster than the widely used lazy greedy algorithm (also known as accelerated greedy), both in theory and practice?
Badanidiyuru, Ashwinkumar   +4 more
core   +1 more source

An Improved Greedy Heuristic for the Minimum Positive Influence Dominating Set Problem in Social Networks

open access: yesAlgorithms, 2021
This paper presents a performance comparison of greedy heuristics for a recent variant of the dominating set problem known as the minimum positive influence dominating set (MPIDS) problem. This APX-hard combinatorial optimization problem has applications
Salim Bouamama, Christian Blum
doaj   +1 more source

Info-Greedy sequential adaptive compressed sensing [PDF]

open access: yes, 2015
We present an information-theoretic framework for sequential adaptive compressed sensing, Info-Greedy Sensing, where measurements are chosen to maximize the extracted information conditioned on the previous measurements.
Braun, Gabor   +2 more
core   +1 more source

Greedy Palindromic Lengths [PDF]

open access: yesInternational Journal of Foundations of Computer Science, 2018
In [A. Frid, S. Puzynina and L. Q. Zamboni, On palindromic factorization of words, Adv. in Appl. Math. 50 (2013) 737–748], it was conjectured that any infinite word whose palindromic lengths of factors are bounded is ultimately periodic. We introduce variants of this conjecture and prove this conjecture when the bound is 2. Especially we introduce left
Bucci, Michelangelo, Richomme, Gwenaël
openaire   +3 more sources

Greedy vector quantization [PDF]

open access: yes, 2014
We investigate the greedy version of the $L^p$-optimal vector quantization problem for an $\mathbb{R}^d$-valued random vector $X\!\in L^p$. We show the existence of a sequence $(a_N)_{N\ge 1}$ such that $a_N$ minimizes $a\mapsto\big \|\min_{1\le i\le N-1}
Luschgy, Harald, Pagès, Gilles
core   +4 more sources

Renorming spaces with greedy bases [PDF]

open access: yes, 2014
We study the problem of improving the greedy constant or the democracy constant of a basis of a Banach space by renorming. We prove that every Banach space with a greedy basis can be renormed, for a given $\vare>0$, so that the basis becomes $(1+\vare ...
Dilworth, S. J.   +4 more
core   +1 more source

Hyperparameter Optimization Using Successive Halving with Greedy Cross Validation

open access: yesAlgorithms, 2022
Training and evaluating the performance of many competing Artificial Intelligence (AI)/Machine Learning (ML) models can be very time-consuming and expensive.
Daniel S. Soper
doaj   +1 more source

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