Results 11 to 20 of about 525,933 (279)

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.
Jeavons, P., Cohen, D., Gyssens, Marc
openaire   +3 more sources

Do sports stadiums generate crime on days without matches? A natural experiment on the delayed exploitation of criminal opportunities [PDF]

open access: yes, 2018
Crime pattern theory claims that busy places generate crime through immediate and delayed exploitation. In delayed exploitation, offenders notice criminal opportunities during opening hours but return to exploit them later.
Bernasco, Wim   +2 more
core   +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

Note on SUSY BF theory in (1+2) dimensions from SUSY algebra for vector-spinor field [PDF]

open access: yes, 2011
We show in (1+2) dimensions that supersymmetric (SUSY) BF action for a (minimal and off-shell) spin-(1,3/2) supermultiplet is a unique SUSY invariant one required from the closure property of commutator algebra for SUSY transformations.Comment: 4 ...
Shima, Kazunari, Tsuda, Motomu
core   +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

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

Closure Properties of Coalgebra Automata [PDF]

open access: yes20th Annual IEEE Symposium on Logic in Computer Science (LICS' 05), 2006
We generalize some of the central results in automata theory to the abstraction level of coalgebras. In particular, we show that for any standard, weak pullback preserving functor F, the class of recognizable languages of F -coalgebras is closed under taking unions, intersections and projections.
Kupke, C.A., Venema, Y.
openaire   +2 more sources

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

Towards Designing Artificial Universes for Artificial Agents under Interaction Closure [PDF]

open access: yes, 2014
We are interested in designing artificial universes for artificial agents. We view artificial agents as networks of highlevel processes on top of of a low-level detailed-description system.
Biehl, Martin   +2 more
core   +3 more sources

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

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