Results 11 to 20 of about 54,001 (265)

Closure properties of constraints

open access: yesJournal of the ACM, 1997
Many combinatorial search problems can be expressed as “constraint satisfaction problems” and this class of problems is known to be NP-complete in general. In this paper, we investigate the subclasses that arise from restricting the possible constraint types.
Peter Jeavons 0001   +2 more
openaire   +3 more sources

Randomly stopped maximum and maximum of sums with consistently varying distributions

open access: yesModern Stochastics: Theory and Applications, 2017
Let $\{\xi _{1},\xi _{2},\dots \}$ be a sequence of independent random variables, and η be a counting random variable independent of this sequence. In addition, let $S_{0}:=0$ and $S_{n}:=\xi _{1}+\xi _{2}+\cdots +\xi _{n}$ for $n\geqslant 1$.
Ieva Marija Andrulytė   +2 more
doaj   +1 more source

Restrictions during pandemic: justified but is it lawful?

open access: yesVilnius University Open Series, 2021
The article analyses if restrictions on business during the quarantines were proportionate and legitimate. The authors of this article argue that the forced closure of businesses during quarantine in its essence resembles the institute of taking private ...
Andra Mažrimaitė, Vytautas Pasvenskas
doaj   +1 more source

Random convolution of O-exponential distributions

open access: yesNonlinear Analysis, 2015
Assume that ξ1, ξ2, ... are independent and identically distributed non-negative random variables having the O-exponential distribution. Suppose that η is a nonnegative non-degenerate at zero integer-valued random variable independent of ξ1, ξ2, ... . In
Svetlana Danilenko, Jonas Šiaulys
doaj   +1 more source

Domains via approximation operators [PDF]

open access: yesLogical Methods in Computer Science, 2018
In this paper, we tailor-make new approximation operators inspired by rough set theory and specially suited for domain theory. Our approximation operators offer a fresh perspective to existing concepts and results in domain theory, but also reveal ways ...
Zhiwei Zou, Qingguo Li, Weng Kin Ho
doaj   +1 more source

The Application of Generalized Quasi-Hadamard Products of Certain Subclasses of Analytic Functions with Negative and Missing Coefficients

open access: yesMathematics, 2019
In this paper, we introduce a new generalized differential operator using a new generalized quasi-Hadamard product, and certain new classes of analytic functions using subordination.
En Ao, Shuhai Li
doaj   +1 more source

A weighted frequent itemset mining algorithm for intelligent decision in smart systems

open access: yesIEEE Access, 2018
Intelligent decision is the key technology of smart systems. Data mining technology has been playing an increasingly important role in decision-making activities.
Xuejian Zhao   +4 more
doaj   +1 more source

On the Order Hereditary Closure Preserving Sum Theorem

open access: yesApplied General Topology, 2007
The main purpose of this paper is to prove the following two theorems, an order hereditary closure preserving sum theorem and an hereditary theorem: (1) If a topological property P satisfies (Σ′) and is closed hereditary, and if V is an order ...
Jianhua Gong, Ivan L. Reilly
doaj   +1 more source

Gap-Definability as a Closure Property

open access: yesInformation and Computation, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stephen A. Fenner   +2 more
openaire   +2 more sources

A Frequent Pattern Mining Method for Finding Planted Motifs of Unknown Length in DNA Sequences [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
Identification and characterization of gene regulatory binding motifs is one of the fundamental tasks toward systematically understanding the molecular mechanisms of transcriptional regulation.
Caiyan Jia, Ruqian Lu, Lusheng Chen
doaj   +1 more source

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