-
Kent, R.E.: Organizing conceptual knowledge online : metadata interoperability and faceted classification (1998)
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- Abstract
- Conceptual Knowledge Markup Language (CKML), an application of XML, is a new standard being promoted for the specification of online conceptual knowledge (Kent and Shrivastava, 1998). CKML follows the philosophy of Conceptual Knowledge Processing (Wille, 1982), a principled approach to knowledge representation and data analysis, which advocates the development of methodologies and techniques to support people in their rational thinking, judgement and actions. CKML was developed and is being used in the WAVE networked information discovery and retrieval system (Kent and Neuss, 1994) as a standard for the specification of conceptual knowledge
- Date
- 30.12.2001 16:22:41
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Wu, C.-J.: Experiments on using the Dublin Core to reduce the retrieval error ratio (1998)
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- Abstract
- In order to test the power of metadata on information retrieval, an experiment was designed and conducted on a group of 7 graduate students using the Dublin Core as the cataloguing metadata. Results show that, on average, the retrieval error rate is only 2.9 per cent for the MES system (http://140.136.85.194), which utilizes the Dublin Core to describe the documents on the World Wide Web, in contrast to 20.7 per cent for the 7 famous search engines including HOTBOT, GAIS, LYCOS, EXCITE, INFOSEEK, YAHOO, and OCTOPUS. The very low error rate indicates that the users can use the information of the Dublin Core to decide whether to retrieve the documents or not
- Source
- Journal of library and information science. 24(1998) no.1, S.50-64
-
Cortez, E.M.: Use of metadata vocabularies in data retrieval (1999)
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- Abstract
- Researchers have developed a prototype of a system that uses metadata to guide their user in selecting document databases of interest. A standardized vocabulary is used to index the document sets and is also used to locate databases. Once a database is located, then freeform searches are aided by the metadata vocabulary to locate specific documents. This system, the Research, Education, Economic Information System (REEIS), is being developed fot the USDA to provide a way to locate programs, projects, and research that focus on food, agriculture, natural resources and rural development
- Source
- Journal of the American Society for Information Science. 50(1999) no.13, S.1218-1223
-
Wu, C.-J.: Metadata and future developments in cataloguing (1997)
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- Abstract
- Metadata is a resource which can assist the information retrieval of digital documents on the Internet. In designing a metadata system, it is necessary to consider the characteristics of digital documents, such as the variety of file formats, frequent format transformation and the difficulty of distinguishing between the different versions. Provides a brief analysis of some existing metadata formats, and introduces several pronciples for the future development of cataloguing on the Internet. Briefly describes the Metadata Experimental System (MES) currently under development, and located at the author's homepage
- Source
- Journal of information; communication; and library science. 4(1997) no.2, S.42-52
-
Schaefer, M.T.: Demystifying metadata : initiatives for web document description (1998)
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- Abstract
- Examines international efforts to promote metadata as a common, interactive resource description tool for the Internet. These efforts centre on the Dublin Core Element Set, but include qualifiers such as those promoted by the Canberra Qualifiers. The LoC Network Development and MARC Standards Office maintains the Dublin Core / MARC / GILS (Government Information Location Standards) crosswalk which maps the common and correlative elements of each system. Describes current international initiatives and issues. Describes the Nordic metadata project which is aiming to create the basic elements of a metadata production and utilization system based on the Dublin Core Metadata Element Set. Describes the WWW consortium efforts in this area
- Source
- Information retrieval and library automation. 33(1998) no.11, S.1-5
-
Brasethvik, T.: ¬A semantic modeling approach to metadata (1998)
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- Abstract
- States that heterogeneous project groups today may be expected to use the mechanisms of the Web for sharing information. Metadata has been proposed as a mechanism for expressing the semantics of information and, hence, facilitate information retrieval, understanding and use. Presents an approach to sharing information which aims to use a semantic modeling language as the basis for expressing the semantics of information and designing metadata schemes. Functioning on the borderline between human and computer understandability, the modeling language would be able to express the semantics of published Web documents. Reporting on work in progress, presents the overall framework and ideas
- Date
- 9. 9.2000 17:22:23
-
Cheung, W.; Hsu, C.: ¬The model-assisted global query system for multiple databases in distributed enterprises (1996)
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- Abstract
- Today's enterprises employ multiple information systems which are independently developed, locally administered, and are different in logical or physical design. To share information across organisational boundaries requires a global query system capable of providing online intelligent assistance to users. Conventional technologies such as schema based query languages and hard coded schema integration are insufficient. Develops a model assisted global query system using an online repository of enterprise metadata, the metadatabase, for global query formulation and processing with adaptiveness and open systems architecture. Presents a definition model for the metadata as a knowledge system. Analyzes the improvements of the new system in relation to the old. Tests a prototype system in a computer integrated manufacturing setting
- Source
- ACM transactions on information systems. 14(1996) no.4, S.421-470
-
Hakala, J.: Dublin core in 1997 : a report from Dublin Core metadata workshops 4 & 5 (1998)
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- Abstract
- Creation of more and better metadata, or resource descriptions, is the best means to solve the problems of massive recall and lack of precision associated with Internet information retrieval. Dublin Core Metadata workshops aim to develop the resource descriptions. Describes the 4th workshop held in Canberra March 1997 and the 5th held in Oct. 1997 in Helsinki. DC-4 dealt with element structure with qualifiers language, scheme and type; extensibility issues; and element refinement. DC-5 dealt with element refinement and stability; definition of sub-elements and resource types; and sharing of Dublin Core implementation experiences, one of which is the Nordic Metadata project. The Nordic countries are now well prepared to implement useful new tools built by the Internet metadata community
- Source
- Nordinfo Nytt. 1997, nos.3/4, S.10-22
-
Eichmann, D.; McGregor, T.; Danley, D.: Integrating structured databases into the Web : the MORE system (1994)
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- Abstract
- Administering large quantities of information will be an increasing problem as the WWW grows in size and popularity. The MORE system is a metadatabase repository employing Mosaic and the Web as its sole user interface. Describes the design and implementation experience in migrating a repository system onto the Web
-
Madsen, M.S.; Fogg, I.; Ruggles, C.: Metadata systems : integrative information technologies (1994)
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- Abstract
- Metadata systems are concerned with the management of data which describes other data (datasets, catalogues, or actual database management systems) and are presently the subject of intensive research. Metadata systems can be used to store richly detailed forms of information, perform seamless wide ranging searches of information distributed across networks, and to integrate information stored in disparate repositories. Describes a model design and methods of implementation derived from the experience of the Leicester University Metadata Project. The approach utilizes the incorporation of semantic metadata in addition to resource metadata, resulting in a generally more powerful system than existing global directory services. Feature of the class of design is flexibility or implementation, with the ability to provide a coherent metadata system functioning above heterogeneous autonomous distributed databases
-
Benz, J.; Voigt, K.: Indexing file system for the set-up of metadatabases in environmental sciences on the Internet (1995)
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- Abstract
- Describes an approach to retrieving environmental sciences information on the Internet using metadatabases. an inf-sheet is created in a flat file system for each resource. The contents of theses sheets are structured by different fields which hold different types of information. 2 classes of information can be distinguished: information describing the content of a resource, which is searchable, and information which links to the resources (URL). A rough automated selection is performed, humans analyze the pre selected resources, and a final selection and indexing is carried out. An algorithm which controle the validity of the meta information is implemented. Describes 2 implemented examples, the Register of Ecological Models and the Metadatabase of Internet Resources
- Imprint
- Oxford : Learned Information
- Source
- Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes
-
Integrating multiple overlapping metadata standards (1999)
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- Abstract
- This special issue of JASIS addresses different applications of metadata standards in geospatial collections, education, historical costume collection, data management, and information retrieval, end explores the future thinking of metadata standards for digital libraries
- Source
- Journal of the American Society for Information Science. 50(1999) no.13, S.1164-1223
-
Rossiter, B.N.; Sillitoe, T.J.; Heather, M.A.: Database support for very large hypertexts (1990)
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- Abstract
- Current hypertext systems have been widely and effectively used on relatively small data volumes. Explores the potential of database technology for aiding the implementation of hypertext systems holding very large amounts of complex data. Databases meet many requirements of the hypermedium: persistent data management, large volumes, data modelling, multi-level architecture with abstractions and views, metadata integrated with operational data, short-term transaction processing and high-level end-user languages for searching and updating data. Describes a system implementing the storage, retrieval and recall of trails through hypertext comprising textual complex objects (to illustrate the potential for the use of data bases). Discusses weaknesses in current database systems for handling the complex modelling required
-
Rusch-Feja, D.: Subject oriented collection of information resources from the Internet (1997)
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- Abstract
- Subject oriented information sources on the Internet remain relativley unstructured despite attempts at indexing them and despite the use of search engines to index sources in a collective database and to retrieve relevant information sources. Describes the rationale for developing a means to capture and structure Internet resources for scientific research use in a clearinghouse, and methods for retrieval, information filtering, and structuring subject orientated information sources from the Internet for specific user groups. Discusses the issues of design, maintenance, implementation of metadata, and obtaining use feedback. Cooperation among several institutions involved in the German national subject special collections (SSG) library support programme of the DFG have led to recommendations to expand this programme to include coordination of collective Internet subject information sites. In addition to the compilation of subject oriented information sites on the Internet by library and information staff, connection to other value added services serve to make processes of information searching, retrieval, acquisition, and evaluation more effective for researchers
-
Brugger, J.M.: Cataloging for digital libraries (1996)
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- Abstract
- Using grant funding, some prominent creators of digital libraries have promised users of networked resources certain kinds of access. Some of this access finds a ready-made vehicle in USMARC, some of it in the TEI header, some of it has yet to find the most appropriate vehicle. In its quest to provide access to what users need, the cataloging community can show leadership by exploring the strength inherent in a metadata-providing system like the TEI header.
- Source
- Cataloging and classification quarterly. 22(1996) nos.3/4, S.59-73
-
Pole, T.: Contextual classification in the Metadata Object Manager (M.O.M.) (1999)
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- Abstract
- To Classify is (according to Webster's) "to distribute into classes; to arrange according to a system; to arrange in sets according to some method founded on common properties or characters." A model of classification is a type or category or (excuse the recursive definition) a class of classification "system" as mentioned in Webster's definition. One employs a classification model to implement a specific classification system. (E.g. we employ the hierarchical classification model to implement the Dewey Decimal System) An effective classification model must represent both the commonality (Webster's "common properties"), and also the differences among the items being classified. The commonality of each category or class defines a test to determine which items belong to the set that class represents. The relationships among the classes define the variability among the sets that the classification model can represent. Therefore, a classification model is more than an enumeration or other simple listing of the names of its classes. Our purpose in employing classification models is to build metadata systems that represent and manage knowledge, so that users of these systems we build can: quickly and accurately define (the commonality of) what knowledge they require, allowing the user great flexibility in how that desire is described; be presented existing information assets that best match the stated requirements; distinguish (the variability) among the candidates to determine their best choice(s), without actually having to examine the individual items themselves; retrieve the knowledge they need The MetaData model we present is Contextual Classification. It is a synthesis of several traditional metadata models, including controlled keyword indices, hierarchical classification, attribute value systems, Faceted Classification, and Evolutionary Faceted Classification. Research into building on line library systems of software and software documentation (Frakes and Pole, 19921 and Pole 19962) has shown the need and viability of combining the strengths, and minimizing the weaknesses of multiple metadata models in the development of information systems. The MetaData Object Manager (M.O.M.), a MetaData Warehouse (MDW) and editorial work flow system developed for the Thomson Financial Publishing Group, builds on this earlier research. From controlled keyword systems we borrow the idea of representing commonalties by defining formally defined subject areas or categories of information, which sets are represented by these categories names. From hierarchical classification, we borrow the concept of relating these categories and classes to each other to represent the variability in a collection of information sources. From attribute value we borrow the concept that each information source can be described in different ways, each in respect to the attribute of the information being described. From Faceted Classification we borrow the concept of relating the classes themselves into sets of classes, which a faceted classification system would describe as facets of terms. In this paper we will define the Contextual Classification model, comparing it to the traditional metadata models from which it has evolved. Using the MOM as an example, we will then discuss both the use of Contextual Classification is developing this system, and the organizational, performance and reliability
- Imprint
- Medford, NJ : Information Today
- Series
- Proceedings of the American Society for Information Science; vol.36
- Source
- Knowledge: creation, organization and use. Proceedings of the 62nd Annual Meeting of the American Society for Information Science, 31.10.-4.11.1999. Ed.: L. Woods
-
Maguire, C.: Metadata in Australia (1997)
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- Abstract
- A 1 day seminar was held in Aug 1997, in Synney, Australia, sponsored by the Information science Section of the australia Library and Information Association, on metadata. It focused on building a conceptual framework for metadata. The National Library is developing PANDORA (Preserving and Accessing Networked documentary Resources of Australia) an electronic archive designed to provide long term access to significant Australian online publications. An architecture for access to government information has been developed. The Distributed System Technology Centre's Resource Discivery Project Unit has developed an information presentation tool called HyperIndex and a meta-data searcher called HotOIL
- Source
- Bulletin of the American Society for Information Science. 24(1997) no.1, Oct./Nov., S.18-21
-
Desai, B.C.: Supporting discovery in virtual libraries (1997)
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- Abstract
- Discusses the development and implementation of models for indexing and searching information resources on the Internet. Examines briefly the results of a simple query on a number of existing search systems and discusses 2 proposed index metadata structures for indexing and supporting search and discovery: The Dublin Core Elements List and the Semantic Header. Presents an indexing and discovery system based on the Semantic Header
- Source
- Journal of the American Society for Information Science. 48(1997) no.3, S.190-204
-
Dempsey, L.: Metadata: a UK HE perspective (1997)
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- Abstract
- Reviews the range of UK research into metadata systems funded by the JISC (Joint Information System Committee of the Higher Education Funding Councils), including several subject specific gateways to network resources. Speculates on future directions for metadata research
-
Carroll, D.J.; Lele, P.: Human intervention in the networked environment : metadata alternatives (1998)
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- Abstract
- Emphasizes the increased importance of the role of the librarian as a 'human' interface in the organization and retrieval of resources in the networked environment. Comments on the recent increase in metadata and compares the long established MARC format and adaptations of MARC with several other alternative metadata systems. Outlines the use of embedded META tag information in HTML documents and describes how existing search engines find and index resources on the WWW, with their pros and cons. Discusses the implications for effective research of the inherent limitations of these automated indexing schemes
- Source
- Data or information: the fading boundaries. Proceedings of the 23rd Annual Conference of the International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC), Charleston, South Carolina, 5-9 Oct. 1997. Ed.: J.W. Markham et al
