Search (31 results, page 1 of 2)

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Abstract

Presents the findings of the South Ayrshire Libraries OPen Learning and the Internet project, Sep 1997 to Oct 1998. The objective was to demonstrate how open learning materials available on the Internet could be integrated with the provision of local open learning resources to provide an enhanced learning environment in public libraries. The main areas of concentration within the project were information skills support to public library users and the provision of WWW based independent materials to learners. The organisation and retrieval of Web based resources for local use was a major issue throughout the project. Recommends the adoption of Dublin Core metadata standards, the connection of databases of resources with searchable wen pages, and the development of thesauri of terms used to index the Web based resources locally. Sstaff training, and the new skills which will need to be developed, were identified as issues. Cost was also identified as a related issue, extending to issues such as access to open learning material and the Internet

Date

22. 5.1999 18:55:19

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Abstract

The increasingly pervasive nature of the Web, expanding to devices and things in everydaylife, along with new trends in Artificial Intelligence call for new paradigms and a new look onKnowledge Representation and Processing at scale for the Semantic Web. The emerging, but stillto be concretely shaped concept of "Knowledge Graphs" provides an excellent unifying metaphorfor this current status of Semantic Web research. More than two decades of Semantic Webresearch provides a solid basis and a promising technology and standards stack to interlink data,ontologies and knowledge on the Web. However, neither are applications for Knowledge Graphsas such limited to Linked Open Data, nor are instantiations of Knowledge Graphs in enterprises- while often inspired by - limited to the core Semantic Web stack. This report documents theprogram and the outcomes of Dagstuhl Seminar 18371 "Knowledge Graphs: New Directions forKnowledge Representation on the Semantic Web", where a group of experts from academia andindustry discussed fundamental questions around these topics for a week in early September 2018,including the following: what are knowledge graphs? Which applications do we see to emerge?Which open research questions still need be addressed and which technology gaps still need tobe closed?

Theme

Semantic Web

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Abstract

Many Semantic Web applications provide access to their resources through text-based search queries, using explicit semantics to improve the search results. This paper provides an analysis of the current state of the art in semantic search, based on 35 existing systems. We identify different types of semantic search features that are used during query construction, the core search process, the presentation of the search results and user feedback on query and results. For each of these, we consider the functionality that the system provides and how this is made available through the user interface.

Theme

Semantic Web

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Abstract

We determine analytically the modulus of the second eigenvalue for the web hyperlink matrix used by Google for computing PageRank. Specifically, we prove the following statement: "For any matrix A=(cP + (1-c)E)**T, where P is an nxn row-stochasticmatrix, E is a nonnegative nxn rank-one row-stochastic matrix, and 0<=c<=1, the second eigenvalue of A has modulus Betrag (Lambda_sub2)<=c. Furthermore, if P has at least two irreducible closed subsets, the second eigenvalue Lambda_sub2 = c." This statement has implications for the convergence rate of the standard PageRank algorithm as the web scales, for the stability of PageRank to perturbations to the link structure of the web, for the detection of Google spammers, and for the design of algorithms to speed up PageRank.

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Date

31. 7.1998 19:29:21

Series

British Library Research and Innovation Centre (BLRIC) report; 22

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Content

(1) Knowledge organization systems: an overview; (2) Linking digital library resources to related resources; (3) Making resources accessible to other communities; (4) Planning and implementing knowledge organization systems in digital libraries; (5) The future of knowledge organization systems on the Web

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Abstract

Finding particular documents after they have been reviewed and stored has been a challenge since the advent of the printed word. "Findability" is emphatically more important as we deal with information overload in general and with the specific need to quickly find relevant background information to support business decisions in a networked environment. Because time is arguably the most valuable asset in today's economy, information users value tools that help them (1) quickly find the information they are seeking and (2) manage the quantity and quality of information they manipulate and work with on a regular basis. Although the term "indexing" may lack the cachet of some other terms we use to describe current information organization and management concepts, indexing is fundamental to precise information organization and retrieval, especially when dealing with large sets of documents. Power users find great value in using a known, granular indexing language that can surface the most relevant items and filter out items of peripheral or no interest. Web architects and interface designers can likewise take advantage of indexing labels to present only the information meeting certain requirements for users who do not wish to learn the indexing structure or taxonomy. The user finds what is needed while the indexing language is used behind the scenes and is transparent to the user.
The importance of indexing in developing a content navigation strategy for corporate intranets or portals and the value of high-quality indexing when retrieving information from external resources are reviewed in this white paper. Some general background information on indexing and the use of controlled vocabularies (or taxonomies) are included for a historical perspective. Factiva Intelligent Indexing-which incorporates the best indexing expertise from both Dow Jones Interactive and Reuters Business Briefing-is described, along with some novel customer applications that take advantage of Factiva's indexing to create or improve information products delivered to users. Examples from the Excite and Google web search engines and from Dow Jones Interactive and Reuters Business Briefing are included in an Appendix section to illustrate how indexing influences the amount and quality of information retrieved in a specific search.

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Date

23. 1.1999 19:52:29

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Pages

22 S

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Date

30.11.1995 20:53:22

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Abstract

The future of bibliographic control will be collaborative, decentralized, international in scope, and Web-based. Its realization will occur in cooperation with the private sector, and with the active collaboration of library users. Data will be gathered from multiple sources; change will happen quickly; and bibliographic control will be dynamic, not static. The underlying technology that makes this future possible and necessary-the World Wide Web-is now almost two decades old. Libraries must continue the transition to this future without delay in order to retain their relevance as information providers. The Working Group on the Future of Bibliographic Control encourages the library community to take a thoughtful and coordinated approach to effecting significant changes in bibliographic control. Such an approach will call for leadership that is neither unitary nor centralized. Nor will the responsibility to provide such leadership fall solely to the Library of Congress (LC). That said, the Working Group recognizes that LC plays a unique role in the library community of the United States, and the directions that LC takes have great impact on all libraries. We also recognize that there are many other institutions and organizations that have the expertise and the capacity to play significant roles in the bibliographic future. Wherever possible, those institutions must step forward and take responsibility for assisting with navigating the transition and for playing appropriate ongoing roles after that transition is complete. To achieve the goals set out in this document, we must look beyond individual libraries to a system wide deployment of resources. We must realize efficiencies in order to be able to reallocate resources from certain lower-value components of the bibliographic control ecosystem into other higher-value components of that same ecosystem. The recommendations in this report are directed at a number of parties, indicated either by their common initialism (e.g., "LC" for Library of Congress, "PCC" for Program for Cooperative Cataloging) or by their general category (e.g., "Publishers," "National Libraries"). When the recommendation is addressed to "All," it is intended for the library community as a whole and its close collaborators.
The Library of Congress must begin by prioritizing the recommendations that are directed in whole or in part at LC. Some define tasks that can be achieved immediately and with moderate effort; others will require analysis and planning that will have to be coordinated broadly and carefully. The Working Group has consciously not associated time frames with any of its recommendations. The recommendations fall into five general areas: 1. Increase the efficiency of bibliographic production for all libraries through increased cooperation and increased sharing of bibliographic records, and by maximizing the use of data produced throughout the entire "supply chain" for information resources. 2. Transfer effort into higher-value activity. In particular, expand the possibilities for knowledge creation by "exposing" rare and unique materials held by libraries that are currently hidden from view and, thus, underused. 3. Position our technology for the future by recognizing that the World Wide Web is both our technology platform and the appropriate platform for the delivery of our standards. Recognize that people are not the only users of the data we produce in the name of bibliographic control, but so too are machine applications that interact with those data in a variety of ways. 4. Position our community for the future by facilitating the incorporation of evaluative and other user-supplied information into our resource descriptions. Work to realize the potential of the FRBR framework for revealing and capitalizing on the various relationships that exist among information resources. 5. Strengthen the library profession through education and the development of metrics that will inform decision-making now and in the future. The Working Group intends what follows to serve as a broad blueprint for the Library of Congress and its colleagues in the library and information technology communities for extending and promoting access to information resources.

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Date

29. 1.1996 10:09:21

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Date

29. 1.1996 10:09:21

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Date

29. 1.1996 10:09:21

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Date

29. 1.1996 10:09:21

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Footnote

Rez. in: Journal of academic librarianship 22(1996) no.2, S.147 (A. Schultis)

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Footnote

Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)

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Footnote

Rez. in: Select newsletter 1998, no.22, S.8 (P. Robinson)

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Pages

22 S