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Updated: Jun 30, 2025

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications
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Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications

Published on: February 23, 2019

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一个可扩展的基于MapReduce的无监督实体解决方案系统的可扩展设计.

Nicholas Kofi Akortia Hagan1, John R Talburt1, Kris E Anderson1

  • 1Department of Information Sciences, University of Arkansas at Little Rock, Little Rock, AR, United States.

Frontiers in big data
|March 18, 2024
PubMed
概括

本研究介绍了Hadoop数据清洗机 (HDWM),一个可扩展的,无监督实体解决方案 (ER) 系统. HDWM克服了以前的局限性,使数以百万计的记录在分布式计算节点上的高效集群成为可能.

关键词:
数据洗衣机数据洗衣机哈杜普分布式文件系统 (Hadoop) 是一个分布式文件系统.在 MapReduce 中,我们可以缩小.数据策划数据的策划.解决方案实体的解决方案实体是一个解决方案实体.

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
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Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
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Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
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