Masters Theses


Approximate query processing using multilayered database model and inference control

Alternative Title

Approximate query processing using multilayered data model to preserve privacy of data

Keywords and Phrases

Multi-layered database; Approximate query processor


"In this thesis. we describe a query approximation system which uses the Multi-Layered Database (MLDB), and then proceeds to analyze different inference problems that may occur in MLDB. MLDB is a collection of summarized relational data generated using domain based concept hierarchies, which provides an approximate result even when the user does not have access. The system, we described not only generates approximate answers to queries based on the user's access control level but also enforces inference checking, thus preserving both privacy of data and purpose of the application"--Abstract, page iv.


Computer Science

Degree Name

M.S. in Computer Science


Accompanying CD-ROM, available at Missouri S&T Library, contains "the Microsoft Visual C++ Code for generating multilayered database model and the approximate query processor".
System requirements: Windows XP with minimum configuration Wordpad, Microsoft Visual C++ 6.0, Oracle 9i


University of Missouri--Rolla

Publication Date

Fall 2005

Journal article titles appearing in thesis/dissertation

  • Analyzing inference problems in multilayered database model


xi, 66 pages

Note about bibliography

Includes bibliographical references.


© 2005 Muthukumar Narayanan, All rights reserved.

Document Type

Thesis - Citation

File Type




Subject Headings

Computer security
Computer networks -- Security measures

Thesis Number

T 8870

Print OCLC #


Link to Catalog Record

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