Results 11 to 20 of about 492,566 (255)

A Simple Algorithm for Consistent Query Answering under Primary Keys [PDF]

open access: yesLogical Methods in Computer Science, 2023
We consider the dichotomy conjecture for consistent query answering under primary key constraints. It states that, for every fixed Boolean conjunctive query q, testing whether q is certain (i.e.
Diego Figueira   +3 more
doaj   +3 more sources

Global and Saturated Probabilistic Approximations Based on Generalized Maximal Consistent Blocks

open access: yesLogic Journal of the IGPL, 2020
AbstractIn this paper incomplete data sets, or data sets with missing attribute values, have three interpretations, lost values, attribute-concept values and ‘do not care’ conditions. Additionally, the process of data mining is based on two types of probabilistic approximations, global and saturated.
Patrick G. Clark   +4 more
openaire   +1 more source

Block-Diagonal Covariance Estimation and Application to the Shapley Effects in Sensitivity Analysis [PDF]

open access: yesSIAM/ASA J. Uncertain. Quantification, 2019
In this paper, we aim to estimate block-diagonal covariance matrices for Gaussian data in high dimension and in fixed dimension. We first estimate the block-diagonal structure of the covariance matrix by theoretical and practical estimators which are ...
B. Broto   +3 more
semanticscholar   +1 more source

The Two-Loop Symbol of all Multi-Regge Regions [PDF]

open access: yes, 2015
We study the symbol of the two-loop n-gluon MHV amplitude for all Mandelstam regions in multi-Regge kinematics in N=4 super Yang-Mills theory. While the number of distinct Mandelstam regions grows exponentially with n, the increase of independent symbols
Bargheer, Till   +2 more
core   +2 more sources

Inhibition of voltage-gated Na+ currents by eleclazine in rat atrial and ventricular myocytes

open access: yesHeart Rhythm O2, 2020
Background: Atrial-ventricular differences in voltage-gated Na+ currents might be exploited for atrial-selective antiarrhythmic drug action for the suppression of atrial fibrillation without risk of ventricular tachyarrhythmia.
Rachel E. Caves, PhD   +9 more
doaj   +1 more source

Symplectic Deformations of Gauged Maximal Supergravity [PDF]

open access: yes, 2014
We identify the space of symplectic deformations of maximal gauged supergravity theories. Coordinates of such space parametrize inequivalent supergravity models with the same gauge group.
Dall'Agata, Gianguido   +2 more
core   +1 more source

Complexity of Rule Sets Mined from Incomplete Data Using Probabilistic Approximations Based on Generalized Maximal Consistent Blocks

open access: yesProcedia Computer Science, 2020
Abstract In this paper, incomplete data sets have two kinds of missing attribute vales: lost values and “do not care” conditions. Lost values are interpreted as erased or as not inserted into the data set, while “do not care” conditions may be replaced by any specified attribute value.
Patrick G. Clark   +4 more
openaire   +1 more source

Neutrino masses and mixing from flavour antisymmetry [PDF]

open access: yes, 2015
We discuss consequences of assuming ($i$) that the (Majorana) neutrino mass matrix $M_\nu$ displays flavour antisymmetry, $S_\nu^T M_\nu S_\nu=-M_\nu$ with respect to some discrete symmetry $S_\nu$ contained in $SU(3)$ and ($ii$) $S_\nu$ together with a ...
Joshipura, Anjan S.
core   +2 more sources

Stac3 enhances expression of human CaV1.1 in Xenopus oocytes and reveals gating pore currents in HypoPP mutant channels. [PDF]

open access: yes, 2018
Mutations of CaV1.1, the pore-forming subunit of the L-type Ca2+ channel in skeletal muscle, are an established cause of hypokalemic periodic paralysis (HypoPP).
Cannon, Stephen C   +3 more
core   +1 more source

Complexity of Rule Sets in Mining Incomplete Data Using Characteristic Sets and Generalized Maximal Consistent Blocks

open access: yesLogic Journal of the IGPL, 2018
Abstract In this paper, missing attribute values in incomplete data sets have three possible interpretations: lost values, attribute-concept values and ‘do not care’ conditions. For rule induction, we use characteristic sets and generalized maximal consistent blocks. Therefore, we apply six different approaches for data mining.
Patrick G. Clark   +4 more
openaire   +1 more source

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