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Anotace knihy

Entity Resolution (ER) 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. 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. This synthesis lecture organizes ER methods into four generations based on the challenges posed by these four Vs. 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.

Parametry knihy

Zařazení knihy Knihy v angličtině Computing & information technology Computer hardware Network hardware

• Plný název: Four Generations of Entity Resolution
• Autor: George Papadakis, Ekaterini Ioannou, Emanouil Thanos, Themis Palpanas
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 152
• EAN: 9783031007507
• ID: 39279679
• Nakladatelství: Springer International Publishing AG
• Hmotnost: 348 g
• Rozměry: 190 × 233 × 17 mm
• Datum vydání: 16. March 2021

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