NDLI: Representing and Querying Correlated Tuples in Probabilistic Databases

Content Provider	IEEE Xplore Digital Library
Author	Sen, Prithviraj Deshpande, A.
Copyright Year	2007
Description	Author affiliation: Dept. of Comput. Sci., Maryland Univ., College Park, MD, USA (Prithviraj Sen; Deshpande, A.)
Abstract	Probabilistic databases have received considerable attention recently due to the need for storing uncertain data produced by many real world applications. The widespread use of probabilistic databases is hampered by two limitations: (1) current probabilistic databases make simplistic assumptions about the data (e.g., complete independence among tuples) that make it difficult to use them in applications that naturally produce correlated data, and (2) most probabilistic databases can only answer a restricted subset of the queries that can be expressed using traditional query languages. We address both these limitations by proposing a framework that can represent not only probabilistic tuples, but also correlations that may be present among them. Our proposed framework naturally lends itself to the possible world semantics thus preserving the precise query semantics extant in current probabilistic databases. We develop an efficient strategy for query evaluation over such probabilistic databases by casting the query processing problem as an inference problem in an appropriately constructed probabilistic graphical model. We present several optimizations specific to probabilistic databases that enable efficient query evaluation. We validate our approach by presenting an experimental evaluation that illustrates the effectiveness of our techniques at answering various queries using real and synthetic datasets.
Starting Page	596
Ending Page	605
File Size	345487
Page Count	10
File Format	PDF
ISBN	1424408024
DOI	10.1109/ICDE.2007.367905
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-15
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Query processing Uncertainty Computer science Educational institutions Application software Database languages Casting Graphical models Birds Machine learning
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Representing and querying correlated tuples in probabilistic databases (2007)

Representing and querying correlated tuples in probabilistic databases (2007)

Database Support for Probabilistic Attributes and Tuples

Representing Tuple and Attribute Uncertainty in Probabilistic Databases

Representing and querying uncertain data with complex correlations

Supporting Uncertainty in Indexing and Querying of Moving Objects in Networks Databases

Ef?cient Query Evaluation over Temporally Correlated Probabilistic Streams

Querying with negation in data integration systems

Efficient threshold skyline query processing in uncertain databases

Representing and Querying Correlated Tuples in Probabilistic Databases

Similar Documents

Representing and querying correlated tuples in probabilistic databases (2007)

Representing and querying correlated tuples in probabilistic databases (2007)

Database Support for Probabilistic Attributes and Tuples

Representing Tuple and Attribute Uncertainty in Probabilistic Databases

Representing and querying uncertain data with complex correlations

Supporting Uncertainty in Indexing and Querying of Moving Objects in Networks Databases

Ef?cient Query Evaluation over Temporally Correlated Probabilistic Streams

Querying with negation in data integration systems

Efficient threshold skyline query processing in uncertain databases

Representing and Querying Correlated Tuples in Probabilistic Databases