The Four Generations of Entity Resolution

Released on by George Papadakis
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  • The Four Generations of Entity Resolution Book Detail

  • Author : George Papadakis
  • Release Date : 2021-03-16
  • Publisher : Morgan & Claypool Publishers
  • Genre : Computers
  • Pages : 172
  • ISBN 13 : 1636390579
  • File Size : 67,67 MB
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The Four Generations of Entity Resolution by George Papadakis PDF Summary

Book Description: This book organizes entity resolution (ER) into four generations based on the challenges posed by “the four Vs,” Veracity, Volume, Variety, and Velocity. Entity resolution lies at the core of data integration and cleaning and, thus, a bulk of the research examines ways for improving its effectiveness and time efficiency. For each generation, we outline the corresponding ER workflow, discuss the state-of-the-art methods per workflow step, and present current research directions. The discussion of these methods takes into account a historical perspective, explaining the evolution of the methods over time along with their similarities and differences. The lecture also discusses the available ER tools and benchmark datasets that allow expert as well as novice users to make use of the available solutions. The initial ER methods primarily target Veracity in the context of structured (relational) data that are described by a schema of well-known quality and meaning. To achieve high effectiveness, they leverage schema, expert, and/or external knowledge. Part of these methods are extended to address Volume, processing large datasets through multi-core or massive parallelization approaches, such as the MapReduce paradigm. However, these early schema-based approaches are inapplicable to Web Data, which abound in voluminous, noisy, semi-structured, and highly heterogeneous information. To address the additional challenge of Variety, recent works on ER adopt a novel, loosely schema-aware functionality that emphasizes scalability and robustness to noise. Another line of present research focuses on the additional challenge of Velocity, aiming to process data collections of a continuously increasing volume. The latest works, though, take advantage of the significant breakthroughs in Deep Learning and Crowdsourcing, incorporating external knowledge to enhance the existing words to a significant extent.

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The Four Generations of Entity Resolution

The Four Generations of Entity Resolution

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This book organizes entity resolution (ER) into four generations based on the challenges posed by “the four Vs,” Veracity, Volume, Variety, and Velocity. En

Data Cleaning

Data Cleaning

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Data quality is one of the most important problems in data management, since dirty data often leads to inaccurate data analytics results and incorrect business