Probabilistic Databases PDF
By:Dan Suciu,Dan Olteanu,Christoph Koch
Published on 2011 by Morgan & Claypool Publishers
Probabilistic databases are databases where the value of some attributes or the presence of some records are uncertain and known only with some probability. Applications in many areas such as information extraction, RFID and scientific data management, data cleaning, data integration, and financial risk assessment produce large volumes of uncertain data, which are best modeled and processed by a probabilistic database. This book presents the state of the art in representation formalisms and query processing techniques for probabilistic data. It starts by discussing the basic principles for representing large probabilistic databases, by decomposing them into tuple-independent tables, block-independent-disjoint tables, or U-databases. Then it discusses two classes of techniques for query evaluation on probabilistic databases. In extensional query evaluation, the entire probabilistic inference can be pushed into the database engine and, therefore, processed as effectively as the evaluation of standard SQL queries. The relational queries that can be evaluated this way are called safe queries. In intensional query evaluation, the probabilistic inference is performed over a propositional formula called lineage expression: every relational query can be evaluated this way, but the data complexity dramatically depends on the query being evaluated, and can be #P-hard. The book also discusses some advanced topics in probabilistic data management such as top-k query processing, sequential probabilistic databases, indexing and materialized views, and Monte Carlo databases. Table of Contents: Overview / Data and Query Model / The Query Evaluation Problem / Extensional Query Evaluation / Intensional Query Evaluation / Advanced Techniques
This Book was ranked at 30 by Google Books for keyword medical computer applications acl.
Book ID of Probabilistic Databases's Books is 0e-hCq8LuY0C, Book which was written byDan Suciu,Dan Olteanu,Christoph Kochhave ETAG "jYrUprrS1+4"
Book which was published by Morgan & Claypool Publishers since 2011 have ISBNs, ISBN 13 Code is 9781608456802 and ISBN 10 Code is 1608456803
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Book which have "164 Pages" is Printed at BOOK under CategoryComputers
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