Results 1 to 10 of about 138,756 (354)

A BiLSTM cardinality estimator in complex database systems based on attention mechanism

open access: yesCAAI Transactions on Intelligence Technology, 2022
An excellent cardinality estimation can make the query optimiser produce a good execution plan. Although there are some studies on cardinality estimation, the prediction results of existing cardinality estimators are inaccurate and the query efficiency ...
Jin Guo, Shaojie Qiao
exaly   +2 more sources

Split Domination in Neutrosophic Graphs [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
This paper demonstrates a concept of split domination in neutrosophic graphs.Minimal split domination, lower and upper split dominations in neutrosophic graphs are discussed.
M. Mullai   +3 more
doaj   +1 more source

Cardinal Composition

open access: yesErkenntnis, 2022
AbstractThe thesis of Weak Unrestricted Composition says that every pair of objects has a fusion. This thesis has been argued by Contessa (Analysis 72(3):455–457, 2012) and Smith (Erkenntnis 84(1):41–55, 2019) to be compatible with the world being junky and hence to evade an argument against the necessity of Strong Unrestricted Composition proposed by ...
Lisa Vogt, Jonas Werner
openaire   +2 more sources

Order statistics and estimating cardinalities of massive data sets [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
We introduce a new class of algorithms to estimate the cardinality of very large multisets using constant memory and doing only one pass on the data. It is based on order statistics rather that on bit patterns in binary representations of numbers.
Frédéric Giroire
doaj   +1 more source

Lessons Learned from 10 Experiments That Tested the Efficacy and Assumptions of Hypothetical Learning Trajectories

open access: yesEducation Sciences, 2022
Although reformers have embraced learning trajectories (LT, also called learning progressions) as an important tool for improving mathematics education, the efficacy and assumptions of LT-based instruction are largely unproven.
Arthur J. Baroody   +2 more
doaj   +1 more source

Generalized Sketches for Streaming Sets

open access: yesApplied Sciences, 2022
Many real-world datasets are given as a stream of user–interest pairs, where a user–interest pair represents a link from a user (e.g., a network host) to an interest (e.g., a website), and may appear more than once in the stream.
Wenhua Guo   +4 more
doaj   +1 more source

Acquiring the Cardinal Knowledge of Number Words: A Conceptual Replication

open access: yesJournal of Numerical Cognition, 2021
Understanding the way in which counting represent numerosities was shown to be a long-lasting process. As shown in the Give-a-number task, acquiring the meanings of verbal number words goes through successive developmental stages in which children first ...
Laurence Rousselle, Line Vossius
doaj   +1 more source

Efficient estimation of the cardinality of large data sets [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
Giroire has recently proposed an algorithm which returns the $\textit{approximate}$ number of distinct elements in a large sequence of words, under strong constraints coming from the analysis of large data bases.
Philippe Chassaing, Lucas Gerin
doaj   +1 more source

The article a(n) in English quantifying expressions: A default marker of cardinality

open access: yesGlossa, 2020
Certain English quantificational expressions feature what appears to be an indefinite article, e.g. a bunch, a few, a hundred. These can be divided into three types of quantifying expressions: pseudopartitives (a lot, a bunch, a ton), article-requiring ...
Heidi Klockmann
doaj   +2 more sources

The Real Preschoolers of Orange County: Early Number Learning in a Diverse Group of Children

open access: yesJournal of Numerical Cognition, 2023
The authors assessed a battery of number skills in a sample of over 500 preschoolers, including both monolingual and bilingual/multilingual learners from households at a range of socio-economic levels. Receptive vocabulary was measured in English for all
Barbara W. Sarnecka   +4 more
doaj   +1 more source

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