DEMON- a media object model incorporating natural language descriptions for retrieval support
By: [by] Bernhard Holtkamp, Vincent Y. Lum [and] Neil C. Rowe
Contributors: Lum, Vincent Y.; Rowe, Neil C.; Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1990
Place of publication: Monterey, California
Language: eng
Number of pages: 20
Subjects: Object-oriented databases; Databases
Description: The DEMOM (Description based Media Object data Model) media object data model aims at providing a uniform framework for managing different types of media data, i.e., images, text, sound or graphics. According to DEMOM media objects are defined as a class hierarchy of objects, i.e., images, text, sound, and graphics being subtypes of the general type media object. Representation specific objects are regarded as subordinate types of the corresponding subtype, e.g. a SUN raster image in pixrect format is an instance of the subtype pixrect which is in turn a subtype of image. Using images as an example we discuss the media object hierarchy, the corresponding access operations and implementation issues. Content oriented search of media data on the basis of predicate calculus is considered as an essential part of DEMOM and hence discussed as well.
Notes: Title from cover.

"Prepared for: Naval Postgraduate School"--Cover.

"February 1990"--Cover.

"NPS52-90-019"--Cover.

DTIC Identifiers: DEMON (Description Based Media Object Data Model)

Author(s) subject terms: Cooperative systems, database integration, transaction concepts, decentralized systems, S-transactions.

Includes bibliographical references (p. 19-20)

"Approved for public release; distribution unlimited"--Cover.

Technical report; 1990.

kmc/kmc 12/1/09.

aq/aq cc:9116 10/28/98