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University of New Orleans

Evaluation of Expressions with Uncertainty in Databases

Abstract

dc:description.abstract

Expressions are used in a range of applications like Publish/Subscribe, Ecommerce, etc. Integrating support for expressions in a database management system (DBMS) provides an efficient and scalable platform for applications that use Expressions. Support from uncertain data and expressions can be beneficial but not currently provided for. In this thesis, we investigate how expressions with uncertainty can be integrated in a DBMS like other data. We describe the underlying theory and implementation of UNXS (UNcertain eXpression System), a system that we have developed to handle uncertainty in expressions and data. We develop a theoretical model to compare and contrast different previous work in supporting uncertainty in DBMS and Publish/Subscribe systems. We extend the existing approaches to propose new techniques for matching uncertain expressions to uncertain data in UNXS. We then describe an implementation that integrates this support in Postgresql DBMS, which to our knowledge is the first such implementation.

Degree

thesis:*
Name thesis:degree_name
M.S.
Level thesis:degree_level
Thesis
Discipline thesis:degree_discipline
Computer Science
Year
2007

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Mohandas, Moginraj
Contributors dc:contributor
  • Chaudhry, Nauman
  • Abdelguerfi, Mahdi
  • Richard, Golden

Identifiers

dc:identifier.*
Repository record dc:identifier
https://scholarworks.uno.edu/td/535
OAI identifier oai:identifier
oai:scholarworks.uno.edu:td-1535

Chain of custody

source
Harvested from
University of New Orleans
Base URL
scholarworks.uno.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
related terms
citation

Mohandas, Moginraj. Evaluation of Expressions with Uncertainty in Databases. Thesis thesis, 2007. https://scholarworks.uno.edu/td/535