Metadata repository

About: Metadata repository is a research topic. Over the lifetime, 5841 publications have been published within this topic receiving 121778 citations.

Method and apparatus for managing metadata in a database management system

Abstract: A method, apparatus, and article of manufacture for managing metadata in a database management system is disclosed. The method comprises the steps of accepting a command in the database management system that implicates a metadata modification and providing that command to a metadata service, parsing the command to determine if the command requires a metadata modification, accessing a rule set defining rules for modifying the metadata when indicated by the parsed commands, and enforcing the rule defined in the rule set. The article of manufacture comprises a program storage device with a medium tangibly embodying processing instructions for performing the foregoing operations. The apparatus comprises a means for performing the foregoing steps. The article of manufacture comprises a means for performing these steps, including a computer implementing a database management system. The functions herein described can be performed by a special purpose processor, a single multipurpose computer. Alternatively, the operations disclosed herein can be performed among a number of computers communicatively interconnected by a network such as a local area network, wide area network, or the Internet.

A Non-Authoritative Educational Metadata Ontology for Filtering and Recommending Learning Objects

Abstract: Digital libraries populated with learning objects are becoming popular tools in the creation of instructional technologies. Many current efforts to create standard metadata structures that facilitate the discovery and instructional use of learning objects recommend a single, authoritative metadata record per version of the learning object. However, as we argue in this paper, a single metadata record — particularly one with fields that emphasize knowledge management and technology, while evading instructional issues — provides information insufficient to support instructional utilization decisions. To put learning objects to instructional use, users must examine the individual objects, forfeiting the supposed benefits of the metadata system. As a solution, we propose a system that includes multi-record, non-authoritative metadata focussed on the surrounding instructional context of learning objects.

Augmented reality system for position identification

Abstract: A system, method, and computer program product for automatically combining computer-generated imagery with real-world imagery in a portable electronic device by retrieving, manipulating, and sharing relevant stored videos, preferably in real time. A video is captured with a hand-held device and stored. Metadata including the camera's physical location and orientation is appended to a data stream, along with user input. The server analyzes the data stream and further annotates the metadata, producing a searchable library of videos and metadata. Later, when a camera user generates a new data stream, the linked server analyzes it, identifies relevant material from the library, retrieves the material and tagged information, adjusts it for proper orientation, then renders and superimposes it onto the current camera view so the user views an augmented reality.

The potential of metadata for linked open data and its value for users and publishers

Abstract: Public and private organizations increasingly release their data to gain benefits such as transparency and economic growth. The use of these open data can be supported and stimulated by providing considerable metadata (data about the data), including discovery, contextual and detailed metadata. In this paper we argue that metadata are key enablers for the effective use of Linked Open Data (LOD). We illustrate the potential of metadata by 1) presenting an overview of advantages and disadvantages of metadata derived from literature, 2) presenting metadata requirements for LOD architectures derived from literature, workshops and a questionnaire, 3) describing a LOD metadata architecture that meets the requirements and 4) showing examples of the application of this architecture in the ENGAGE project. The paper shows that using metadata with the appropriate metadata architecture can yield considerable benefits for LOD publication and use, including improving find ability, accessibility, storing, preservation, analysing, comparing, reproducing, finding inconsistencies, correct interpretation, visualizing, linking data, assessing and ranking the quality of data and avoiding unnecessary duplication of data. The Common European Research Information Format (CERIF) can be used to build the metadata architecture and achieve the advantages.

Method, system and program product for extracting essence from a multimedia file received in a first format, creating a metadata file in a second file format and using a unique identifier assigned to the essence to access the essence and metadata file

Abstract: Provided is a method, system, and program for storing data in a data store, a first file in a first file format is received including essence, metadata objects providing information on the essence, and a unique identifier assigned to the essence. The essence is extracted from the file and stored in the data store. The metadata is extracted from each metadata object in the first file and stored in the data store in a second file format. The extracted metadata and essence in the data store are accessible using the unique identifier assigned to the essence.