scispace - formally typeset
Search or ask a question
Topic

Meta Data Services

About: Meta Data Services is a research topic. Over the lifetime, 2564 publications have been published within this topic receiving 40102 citations.


Papers
More filters
Book ChapterDOI
19 Aug 2002
TL;DR: The definition of a set of similarity measures for comparing ontology-based metadata and an application study using these measures within a hierarchical clustering algorithm are proposed.
Abstract: The Semantic Web is an extension of the current web in which information is given well-defined meaning, better enabling computersr and people to work in cooperation. Recently, different applications based on this vision have been designed, e.g. in the fields of knowledge management, community web portals, e-learning, multimedia retrieval, etc. It is obvious that the complex metadata descriptions generated on the basis of pre-defined ontologies serve as perfect input data for machine learning techniques. In this paper we propose an approach for clustering ontology-based metadata. Main contributions of this paper are the definition of a set of similarity measures for comparing ontology-based metadata and an application study using these measures within a hierarchical clustering algorithm.

217 citations

Patent
09 Apr 2003
TL;DR: In this article, a system, method, and program for improving the performance for SQL queries is presented, where multidimensional metadata associated with a cube model metadata object is obtained.
Abstract: Disclosed is a system, method, and program for improving the performance for SQL queries. Multidimensional metadata associated with a cube model metadata object is obtained. One or more summary tables to be built are automatically identified based on the obtained multidimensional metadata. One or more indexes to create are automatically identified based on the obtained multidimensional metadata.

210 citations

Patent
21 Jan 2000
TL;DR: In this article, a portal server retrieves user requests through a computer network and looks up information stored in a metadata databases, which includes information including a classmark definition for each document.
Abstract: The system and method for searching and retrieving information stored in heterogeneous information repositories. A portal server retrieves user requests through a computer network and looks up information stored in a metadata databases. For example, the metadata may be encoded in an XML/RDF format and stored in a directory server to facilitate effective searching and retrieval of information from an information repository. Metadata includes information including a classmark definition for each document. The classmark is determined through an automated cataloguing process.

207 citations

Proceedings Article
30 Jul 2001
TL;DR: CREAM (Creating RElational, Annotation-based Metadata), a framework for an annotation environment that allows to construct relational metadata, i.e. metadata that comprises class instances and relationship instances, is presented.
Abstract: Richly interlinked, machine-understandable data constitutes the basis for the Semantic Web. Annotating web documents is one of the major techniques for creating metadata on the Web. However, annotation tools so far are restricted in their capabilities of providing richly interlinked and truely machine-understandable data. They basically allow the user to annotate with plain text according to a template structure, such as Dublin Core. We here present CREAM (Creating RElational, Annotation-based Metadata), a framework for an annotation environment that allows to construct relational metadata, i.e. metadata that comprises class instances and relationship instances. These instances are not based on a fix structure, but on a domain ontology. We discuss some of the requirements one has to meet when developing such a framework, e.g. the integration of a metadata crawler, inference services, document management and information extraction, and describe its implementation, viz. Ont-O-Mat a component-based, ontology-driven annotation tool.

203 citations


Network Information
Related Topics (5)
Web page
50.3K papers, 975.1K citations
83% related
Metadata
43.9K papers, 642.7K citations
82% related
Web service
57.6K papers, 989K citations
80% related
Ontology (information science)
57K papers, 869.1K citations
78% related
User interface
85.4K papers, 1.7M citations
76% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202313
202261
20212
20202
20196
20188