Results 21 to 30 of about 305,625 (281)
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Brualdi, Richard A, Pless, Vera S
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Effect of Objective Function on Data-Driven Greedy Sparse Sensor Optimization
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
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Collapsing Superstring Conjecture [PDF]
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
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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
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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
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Info-Greedy sequential adaptive compressed sensing [PDF]
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
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Greedy Palindromic Lengths [PDF]
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
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Greedy vector quantization [PDF]
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
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Renorming spaces with greedy bases [PDF]
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
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Hyperparameter Optimization Using Successive Halving with Greedy Cross Validation
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
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