Results 21 to 30 of about 35,760 (258)
Cardinality Estimation Method for Multitable JOIN Query Optimization [PDF]
Jisuanji gongcheng, 2022 Cardinality estimation is one of the important means to optimize database multitable JOIN queries.When the cardinality of a data table with a large number of data is estimated, data sampling is often used to obtain smaller samples to estimate the data ...
QIAN Wenyuan, JING Yinan, WANG Xiaoyang, WU Zhenhuan
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Optical Code Construction of 2D Spectral/Spatial BIBD Codes for SAC-OCDMA Systems
Applied Sciences, 2021 Optical code division multiple access (OCDMA) shows limitations in terms of the inefficient bandwidth utilization and low spectral density with one-dimensional (1D) codes. To overcome these limitations, a novel design is presented using a two dimensional
Teena Sharma +5 more
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Journal of Mathematics Education at Teachers College, 2019 High school students often ask questions about the nature of infinity. When contemplating what the “largest number” is, or discussing the speed of light, students bring their own ideas about infinity and asymptotes into the conversation.
Steve Deihl, Mara P. Markinson
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Proof of cantor’s continuum hypothesis [PDF]
Journal of Hyperstructures, 2012 We shall attempt to prove Cantor’s General Continuum Hypothesis, a special case of which is known as the Continuum Hypothesis, namely that the cardinality of the power set of an infinite set is the consecutive cardinality. An ordered field of cardinality
J. Kurdics
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Classification of braces of cardinality $p^4$ [PDF]
, 2022 We classify nilpotent pre-Lie rings of cardinality $p^4$ and thereby braces of the same cardinality, for a sufficiently large prime $p$. It has been shown that nilpotent pre-Lie rings of cardinality $p^n$ correspond to strongly nilpotent braces of the ...
Puljić, Dora
core
How Bilingual Parents Talk to Children About Number in Mandarin and English
Frontiers in Psychology, 2019 Number-related language input has been shown to influence children’s number word acquisition and mathematical ability. Significant differences exist between how Mandarin Chinese speaking parents and monolingual English-speaking parents use numeric ...
Alicia Chang, Catherine M. Sandhofer
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Constructive Cardinality [PDF]
, 2001 We describe a set of necessary conditions that are useful for generating propagation algorithms for the cardinality operator as well as for over-constrained problems with preferences.
Beldiceanu, Nicolas, Carlsson, Mats
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Being There. If the Pairing of the Birdwatchers Affects the Pairing of the Birds
Relations, 2022 The drives of inter-individual relationships within avian social groups are largely unexplored and relatively poorly understood, including how social landscapes affect the decisions of individuals within these groups.
Evangelina W. Uskoković +2 more
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Some results on weaker forms of starn-CCC, weakly Lindelöf and starn-DCCC spaces
Applied General TopologyIn this paper we provide some general results about topological spaces X which satisfy starn- P , weakly starn- P and almost starn- P, for P∈ { κ ᴄᴄ , W κ L , ᴅ κ ᴄᴄ } , where κ is an infinite cardinal number.
Ricardo Cruz-Castillo +2 more
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Journal of Numerical Cognition, 2017 The acquisition of counting is a major milestone for children. A central question is how children’s non-verbal number concepts change as they learn to count.
Anna Shusterman +6 more
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