Results 31 to 40 of about 2,902,153 (358)

Knowledge Hypergraphs: Prediction Beyond Binary Relations

open access: yesInternational Joint Conference on Artificial Intelligence, 2019
Knowledge graphs store facts using relations between two entities. In this work, we address the question of link prediction in knowledge hypergraphs where relations are defined on any number of entities.
Bahare Fatemi   +3 more
semanticscholar   +1 more source

Groups and Algebras of Binary Relations [PDF]

open access: yesThe Bulletin of Symbolic Logic, 2002
AbstractIn 1941, Tarski published an abstract, finitely axiomatized version of the theory of binary relations, called the theory of relation algebras. He asked whether every model of his abstract theory could be represented as a concrete algebra of binary relations.
Givant, Steven, Andreka, Hajnal
openaire   +2 more sources

A novel pessimistic multigranulation roughness by soft relations over dual universe

open access: yesAIMS Mathematics, 2023
A multigranulation rough set over two universes delivers a unique perspective on the combination of multigranulation information. This paper presents the pessimistic multignualtion rough set over dual universes based on soft binary relations.
Jamalud Din   +2 more
doaj   +1 more source

A language hierarchy of binary relations

open access: yesInformation and Computation, 2020
19 pages, 2 figures (Several new examples added)
Tara Brough, Alan J. Cain
openaire   +4 more sources

Nonlinear contractions in metric spaces under locally $T$-transitive binary relations [PDF]

open access: yes, 2015
In this paper, we present a variant of Boyd-Wong fixed point theorem in a metric space equipped with a locally T-transitive binary relation, which under universal relation reduces to Boyd-Wong (Proc. Amer. Math. Soc.
A. Alam, M. Imdad
semanticscholar   +1 more source

Groups of binary relations

open access: yesSemigroup Forum, 1970
It was shown in [3] that every finite group is the maximal subgroup of a semigroupBx of all binary relations on some finite set X. This result is extended here to arbitrary groups.
B. M. Schein   +3 more
openaire   +2 more sources

Identities for field extensions generalizing the Ohno-Nakagawa relations [PDF]

open access: yes, 2015
In previous work, Ohno conjectured, and Nakagawa proved, relations between the counting functions of certain cubic fields. These relations may be viewed as complements to the Scholz reflection principle, and Ohno and Nakagawa deduced them as consequences
Cohen   +12 more
core   +5 more sources

Dynamics on Binary Relations over Topological Spaces

open access: yesSymmetry, 2018
The existence of chaos and the quest of dense orbits have been recently considered for dynamical systems given by multivalued linear operators. We consider the notions of topological transitivity, topologically mixing property, hypercyclicity, periodic ...
Chung-chuan Chen   +3 more
semanticscholar   +1 more source

X-Ray Binary Luminosity Function Scaling Relations for Local Galaxies Based on Subgalactic Modeling [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
We present new Chandra constraints on the X-ray luminosity functions (XLFs) of X-ray binary (XRB) populations, as well as their scaling relations, for a sample of 38 nearby galaxies (D = 3.4–29 Mpc).
B. Lehmer   +9 more
semanticscholar   +1 more source

Ordinal notions of submodularity [PDF]

open access: yes, 2008
We consider several ordinal formulations of submodularity, defined for arbitrary binary relations on lattices. Two of these formulations are essentially due to Kreps [Kreps, D.M., 1979.
Chambers, Christopher P.   +1 more
core   +2 more sources

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