• Title, Summary, Keyword: Metadata

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A Case Study on Metadata Management for User Access to Data Warehouse - Suggestions about metadata management using K-bank case - (사용자의 데이터 웨어하우스 접근과 활용을 위한 메타데이터 관리 사례 - K 은행 사례를 통한 메타데이터 관리의 시사점 -)

  • Kim, Gi-Un
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.5
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    • pp.225-233
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    • 2007
  • This paper uses the taxonomy of 3 metadata schema(extraction metadata, warehouse, metadata, and user access metadata) to investigate how to manage metadata and what metadata to manage in data warehouse. In particular, this paper focuses on two kinds of metadata(warehouse metadata and user access metadata) and studies a case about metadata management in a real business world

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Automatic Extraction of Metadata Information for Library Collections

  • Yang, Gi-Chul;Park, Jeong-Ran
    • International Journal of Advanced Culture Technology
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    • v.6 no.2
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    • pp.117-122
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    • 2018
  • As evidenced through rapidly growing digital repositories and web resources, automatic metadata generation is becoming ever more critical, especially considering the costly and complex operation of manual metadata creation. Also, automatic metadata generation is apt to consistent metadata application. In this sense, metadata quality and interoperability can be enhanced by utilizing a mechanism for automatic metadata generation. In this article, a mechanism of automatic metadata extraction called ExMETA is introduced in order to alleviate issues dealing with inconsistent metadata application and semantic interoperability across ever-growing digital collections. Conceptual graph, one of formal languages that represent the meanings of natural language sentences, is utilized for ExMETA as a mediation mechanism that enhances the metadata quality by disambiguating semantic ambiguities caused by isolation of a metadata element and its corresponding definition from the relevant context. Hence, automatic metadata generation by using ExMETA can be a good way of enhancing metadata quality and semantic interoperability.

A Study on Feature Analysis of Archival Metadata Standards in the Records Lifecycle

  • Baek, Jae-Eun
    • Journal of the Korean Society for Library and Information Science
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    • v.48 no.3
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    • pp.71-111
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    • 2014
  • Metadata schemas are well recognized as one of the important technological components for archiving and preservation of digital resources. However, a single standard is not enough to cover the whole lifecycle for archiving and preserving digital resources. This means that we need to appropriately select metadata standards and combine them to develop metadata schemas to cover the whole lifecycle of resources (or records). Creating a unified framework to understand the features of metadata standards is necessary in order to improve metadata interoperability that covers the whole resource lifecycle. In this study, the author approached this issue from the task-centric view of metadata, proposing a Task model as a framework and analyzing the feature of archival metadata standards. The proposed model provides a new scheme to create metadata element mappings and to make metadata interoperable. From this study, the author found out that no single metadata standard can cover the whole lifecycle and also that an in-depth analysis of mappings between metadata standards in accordance with the lifecycle stages is required. The author also discovered that most metadata standards are primarily resource-centric and the different tasks in the resource lifecycle are not reflected in the design of metadata standard data models.

A Model for Metadata Registry Management Systems (메타데이터 레지스트리 관리 시스템 모델)

  • 신동길;정은주;정동원;박수현;백두권
    • Proceedings of the Korea Society for Simulation Conference
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    • pp.173-177
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    • 2003
  • Until now, many metadata registries have been built in various fields and the metadata registries were built based on ISO/IEC 11179 which is the international standard for metadata management. However, their management systems do not fully support various and useful tools to easily and systematically manage the metadata registries. In this paper, we describe the metadata registry management system we designed and implemented. The implemented metadata registry management system provide many useful tools for efficient and easy metadata management. Finally, the developed system is also based on the international standard, ISO/IEC11179. Therefore, we can apply it to other fields for building and managing metadata registries.

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Handling Semantic Ambiguity for Metadata Generation

  • Yang, Gi-Chul;Park, Jeong-Ran
    • International Journal of Internet, Broadcasting and Communication
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    • v.10 no.2
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    • pp.1-6
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    • 2018
  • The following research questions are examined in this paper. What hinders quality metadata generation and metadata interoperability? What kind of semantic representation technique can be utilized in order to enhance metadata quality and semantic interoperability? This paper suggests a way of handling semantic ambiguity for metadata generation. The conceptual graph is utilized to disambiguate semantic ambiguities caused by isolation of a metadata element and its corresponding definition from the relevant context. The mechanism introduced in this paper has the potential to alleviate issues dealing with inconsistent metadata application and interoperability across digital collections.

A Case Study on Recordkeeping Metadata Standard Applying Multiple Entities (다중 개체 모형을 적용한 기록관리 메타데이터 표준 사례분석)

  • Lee, Ju-Yeon
    • Journal of Korean Society of Archives and Records Management
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    • v.10 no.2
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    • pp.193-214
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    • 2010
  • The multiple entity data model which contains metadata that associate two or more entities is applied recordkeeping metadata standard in recent years. This paper described and analyzed the recordkeeping metadata standard applying multiple entities such as ISO 23081, Australia recordkeeping metadata Standard, New Zealand recordkeeping metadata Standard, New South Wales recordkeeping metadata Standard, Queensland recordkeeping metadata Standard recordkeeping metadata Standard, South Australia recordkeeping metadata Standard, focusing on scope, the number of entities, category in entity, metadata elements. And shows some examples of relationship entity which is the key of multiple entity. As a result of the analysis, this paper suggests some consideration when recordkeeping metadata standard applying multiple entities is revised.

Study on the Semantic Extension of the Concept of Metadata (메타데이터의 의미론적 확장에 관한 연구)

  • Nam, Tae-Woo;Lee, Seung-Min
    • Journal of the Korean Society for Library and Information Science
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    • v.44 no.4
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    • pp.373-393
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    • 2010
  • In the current information environment around the library community, metadata is recognized as a sophisticated and powerful tool that can manage and represent information resources. However, with the discreet use of the concepts of metadata and metadata standard, there is no clear boundary that differentiates metadata standard from simple resource description and traditional bibliographic structure, leading to confusion as to what a metadata and metadata standard is. To consider these issues, this research discussed what metadata and metadata standards are based previous definitions of metadata. Based on those definitions, the fundamental concept of metadata is reestablished to be properly used in the library community.

Implementing Data warehouse Methodology Architecture: From Metadata Perspective

  • Kim, Sang-Youl;Kim, Tae-Hun
    • International Commerce and Information Review
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    • v.7 no.1
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    • pp.55-74
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    • 2005
  • Recently, many enterprises have attempted to construct data warehousing systems for decision-support. Data warehouse is an intelligent store of data that can aggregate vast amounts of information. Building DW requires two important development issues:(i) DW for the decision making of business users and (ii) metadata within it. Most DW development methodologies have not considered metadata development; it is necessary to adopt a DW development methodology which develops a DW and its metadata simultaneously. Metadata is a key to success of data warehousing system and is critical for implementing DW. That is, metadata is crucial documentation for a data warehousing system where users should be empowered to meet their own information needs; users need to know what data exists, what it represents, where it is located, and how to access it. Furthermore, metadata is used for extracting data and managing DW. However, metadata has failed because its management has been segregated from the DW development process. Metadata must be integrated with data warehousing systems. Without metadata, the decision support of DW is under the control of technical users. Therefore, integrating data warehouse with its metadata offers a new opportunity to create a more adaptive information system. Therefore, this paper proposes a DW development methodology from a metadata perspective. The proposed methodology consists of five phases: preparatory, requirement analysis, data warehouse (informational database) development, metastore development, and maintenance. To demonstrate the practical usefulness of the methodology, one case is illustrated

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Design and Implementation of XML Based Relational Database Metadata Repository (XML을 기반으로 한 관계형 데이터베이스 메타데이터 리파지토리 설계 및 구현)

  • Gwon, Eun-Jeong;Yong, Hwan-Seung
    • The KIPS Transactions:PartD
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    • v.9D no.1
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    • pp.1-10
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    • 2002
  • Metadata is data about data that is used to mange data itself. As applications based on DBMS are increased, it is suggested that metadata model and metadata interchange model to manage metadata in DBMS. but metadata which is in the form of XML (eXtensible Markup Language) document is generally stored into RDBMS. Therefore In this paper, as for the method to store metadata of RDBMS into OODBMS, we design metadata model, metadata interchange model and implement new repository system. The metadata of RDBMS is translated into in the form of XML Document and integrated into XML Data Server on OODBMS, eXcelon and executes retrieval metadata information about RDBMS by XQL(XML Query Language). So It is possible to searchm edit a metadata. The metadata of XML documents stored in eXcelon is easily made to be printed in web browser by applying a XSL (extensible StyleSheets Language). So we can have a detail information about property of metadata in DBMS.

Toward a Structural and Semantic Metadata Framework for Efficient Browsing and Searching of Web Videos

  • Kim, Hyun-Hee
    • Journal of the Korean Society for Library and Information Science
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    • v.51 no.1
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    • pp.227-243
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    • 2017
  • This study proposed a structural and semantic framework for the characterization of events and segments in Web videos that permits content-based searches and dynamic video summarization. Although MPEG-7 supports multimedia structural and semantic descriptions, it is not currently suitable for describing multimedia content on the Web. Thus, the proposed metadata framework that was designed considering Web environments provides a thorough yet simple way to describe Web video contents. Precisely, the metadata framework was constructed on the basis of Chatman's narrative theory, three multimedia metadata formats (PBCore, MPEG-7, and TV-Anytime), and social metadata. It consists of event information, eventGroup information, segment information, and video (program) information. This study also discusses how to automatically extract metadata elements including structural and semantic metadata elements from Web videos.