Results 31 to 40 of about 148,259 (301)

On Safety of Unary and Non-unary IFP-operators

open access: yesМоделирование и анализ информационных систем, 2018
In this paper, we investigate the safety of unary inflationary fixed point operators (IFPoperators). The safety is a computability in finitely many steps.
Sergey Dudakov
doaj   +1 more source

Around the root of random multidimensional quadtrees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We analyse the distribution of the root pattern of randomly grown multidimensional point quadtrees. In particular, exact, recursive and asymptotic formulas are given for the expected arity of the root.
Gilbert Labelle   +2 more
doaj   +1 more source

Parametrised Complexity of Model Checking and Satisfiability in Propositional Dependence Logic [PDF]

open access: yes, 2020
In this paper, we initiate a systematic study of the parametrised complexity in the field of Dependence Logics which finds its origin in the Dependence Logic of V\"a\"an\"anen from 2007.
A Durand   +22 more
core   +3 more sources

Cross-Sentence N-ary Relation Extraction using Lower-Arity Universal Schemas

open access: yesConference on Empirical Methods in Natural Language Processing, 2019
Most existing relation extraction approaches exclusively target binary relations, and n-ary relation extraction is relatively unexplored. Current state-of-the-art n-ary relation extraction method is based on a supervised learning approach and, therefore,
Kosuke Akimoto   +3 more
semanticscholar   +1 more source

Dynamic Complexity of Parity Exists Queries [PDF]

open access: yesLogical Methods in Computer Science, 2021
Given a graph whose nodes may be coloured red, the parity of the number of red nodes can easily be maintained with first-order update rules in the dynamic complexity framework DynFO of Patnaik and Immerman.
Nils Vortmeier, Thomas Zeume
doaj   +1 more source

Additive decomposability of functions over abelian groups [PDF]

open access: yes, 2011
Abelian groups are classified by the existence of certain additive decompositions of group-valued functions of several variables with arity gap 2.Comment: 17 ...
ERKKO LEHTONEN   +8 more
core   +6 more sources

Essential arities in algebras of finite type and arity trees

open access: yesDiscrete Mathematics, 2002
Given an algebra \(A\), \(S(A)\) denotes the set of those nonnegative integers \(n\) for which there is a nontrivial essentially \(n\)-ary term operation on \(A\). In 1965, K. Urbanik characterized the sets \(S\) of integers such that \(S= S(A)\) for some idempotent algebra \(A\).
Kisielewicz, Andrzej, Tomasik, Jerzy
openaire   +2 more sources

On the Mints Hierarchy in First-Order Intuitionistic Logic [PDF]

open access: yesLogical Methods in Computer Science, 2017
We stratify intuitionistic first-order logic over $(\forall,\to)$ into fragments determined by the alternation of positive and negative occurrences of quantifiers (Mints hierarchy). We study the decidability and complexity of these fragments.
Aleksy Schubert   +2 more
doaj   +1 more source

Large-scale Parallel Stratified Defeasible Reasoning [PDF]

open access: yes, 2012
We are recently experiencing an unprecedented explosion of available data from the Web, sensors readings, scientific databases, government authorities and more.
Antoniou, Grigoris   +4 more
core   +1 more source

CUHK at MRP 2019: Transition-Based Parser with Cross-Framework Variable-Arity Resolve Action

open access: yesConference on Computational Natural Language Learning, 2019
This paper describes our system (RESOLVER) submitted to the CoNLL 2019 shared task on Cross-Framework Meaning Representation Parsing (MRP). Our system implements a transition-based parser with a directed acyclic graph (DAG) to tree preprocessor and a ...
Sunny Lai   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy