-
Lim, E.: Southeast Asian subject gateways : an examination of their classification practices (2000)
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- Date
- 22. 6.2002 19:42:47
- Source
- International cataloguing and bibliographic control. 29(2000) no.3, S.45-48
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Peereboom, M.: DutchESS : Dutch Electronic Subject Service - a Dutch national collaborative effort (2000)
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- Abstract
- This article gives an overview of the design and organisation of DutchESS, a Dutch information subject gateway created as a national collaborative effort of the National Library and a number of academic libraries. The combined centralised and distributed model of DutchESS is discussed, as well as its selection policy, its metadata format, classification scheme and retrieval options. Also some options for future collaboration on an international level are explored
- Date
- 22. 6.2002 19:39:23
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
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- Abstract
- The current subject gateways have evolved over time when the discipline of Internet resource discovery was in its infancy. This is reflected by the lack of well-established, light-weight, deployable, easy-to-use, standards for metadata and information retrieval. We provide an introduction to the architecture, standards and software solutions in use by subject gateways, and to the issues that must be addressed to support future subject gateways
- Date
- 22. 6.2002 19:38:24
-
Joint, N.: Evaluating the quality of library portals (2005)
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- Abstract
- Purpose - To investigate ways of demonstrating how portal implementations positively alter user information retrieval behaviour. Design/methodology/approach - An opinion piece reflecting on existing evidence about the nature of portal implementations, which extrapolates trends in user behaviour on the basis of these reflections. Findings - Although portal technologies probably do offer a way for libraries to create information tools that can compete with "one-stop shop" Internet search engines, there are likely difficulties in their pattern of usage which will have to be detected by effective quality measurement techniques. Research limitations/implications - An expression of opinion about the possible pitfalls of using portals to optimise users' information retrieval activity. Practical implications - This opinion piece gives some clear and practical guidelines for the evaluation of the success of library portal implementations. Originality/value - This editorial points out that, because the portal can be defined as a deliberate clone of a typical successful Internet search engine and may be presented to the naïve user in the same terms, the danger is that library portals might also clone the same information habits as Internet search engines, because of their ease of use. In trying to produce a tool that can meet Google on its own terms but with better content, we might reproduce some of the same educational disbenefits as Google: quality information retrieval is not purely a function of content, it is also a function of the user's perceptions and information habits.
- Date
- 3.12.2005 19:29:27
-
LaBarre, K.: Adventures in faceted classification: a brave new world or a world of confusion? (2004)
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- Date
- 29. 8.2004 9:42:50
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Place, E.: Internationale Zusammenarbeit bei Internet Subject Gateways (1999)
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- Date
- 22. 6.2002 19:35:09
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Meiert, M.: Elektronische Publikationen an Hochschulen : Modellierung des elektronischen Publikationsprozesses am Beispiel der Universität Hildesheim (2006)
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- Date
- 1. 9.2006 13:22:15
- Source
- Effektive Information Retrieval Verfahren in Theorie und Praxis: ausgewählte und erweiterte Beiträge des Vierten Hildesheimer Evaluierungs- und Retrievalworkshop (HIER 2005), Hildesheim, 20.7.2005. Hrsg.: T. Mandl u. C. Womser-Hacker
-
Place, E.: International collaboration on Internet subject gateways (2000)
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- Date
- 22. 6.2002 19:35:35
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Users Council urges continued emphasis on CORC project (1999)
0.02
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Hickey, T.; Vizine-Goetz, D.: ¬The role of classification in CORC (1999)
0.02
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Prasad, A.R.D.; Madalli, D.P.: Faceted infrastructure for semantic digital libraries (2008)
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- Abstract
- Purpose - The paper aims to argue that digital library retrieval should be based on semantic representations and propose a semantic infrastructure for digital libraries. Design/methodology/approach - The approach taken is formal model based on subject representation for digital libraries. Findings - Search engines and search techniques have fallen short of user expectations as they do not give context based retrieval. Deploying semantic web technologies would lead to efficient and more precise representation of digital library content and hence better retrieval. Though digital libraries often have metadata of information resources which can be accessed through OAI-PMH, much remains to be accomplished in making digital libraries semantic web compliant. This paper presents a semantic infrastructure for digital libraries, that will go a long way in providing them and web based information services with products highly customised to users needs. Research limitations/implications - Here only a model for semantic infrastructure is proposed. This model is proposed after studying current user-centric, top-down models adopted in digital library service architectures. Originality/value - This paper gives a generic model for building semantic infrastructure for digital libraries. Faceted ontologies for digital libraries is just one approach. But the same may be adopted by groups working with different approaches in building ontologies to realise efficient retrieval in digital libraries.
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Sasaki, H.; Kiyoki, Y.: ¬A formulation for patenting content-based retrieval processes in digital libraries (2005)
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- Abstract
- In this paper, we present a formulation and case studies of the conditions for patenting content-based retrieval processes in digital libraries, especially in image libraries. Inventors and practitioners demand a formulation of the conditions for patenting data-processing processes as computer-related inventions in the form of computer programs. A process for content-based retrieval often consists of a combination of prior disclosed means and also comprises means for parameter setting that is adjusted to retrieve specific kinds of images in certain narrow domains. We focus on requirements for technical advancement (nonobviousness) in the combination of data-processing means, i.e., processes and specification (enablement) on the means for parameter setting in computer programs. Our formulation follows the standards of patent examination and litigation on computer-related inventions in the US. We confirm the feasibility and accountability of our formulation by applying it to several inventions patented in the US.
-
Hennecke, J.: Workshop DDC and Knowledge Organization in the Digital Library (2000)
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Hickey, T.B.; Vizine-Goetz, D.: ¬The Role of Classification in CORC (2001)
0.01
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Fang, L.: ¬A developing search service : heterogeneous resources integration and retrieval system (2004)
0.01
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- Abstract
- This article describes two approaches for searching heterogeneous resources, which are explained as they are used in two corresponding existing systems-RIRS (Resource Integration Retrieval System) and HRUSP (Heterogeneous Resource Union Search Platform). On analyzing the existing systems, a possible framework-the MUSP (Multimetadata-Based Union Search Platform) is presented. Libraries now face a dilemma. On one hand, libraries subscribe to many types of database retrieval systems that are produced by various providers. The libraries build their data and information systems independently. This results in highly heterogeneous and distributed systems at the technical level (e.g., different operating systems and user interfaces) and at the conceptual level (e.g., the same objects are named using different terms). On the other hand, end users want to access all these heterogeneous data via a union interface, without having to know the structure of each information system or the different retrieval methods used by the systems. Libraries must achieve a harmony between information providers and users. In order to bridge the gap between the service providers and the users, it would seem that all source databases would need to be rebuilt according to a uniform data structure and query language, but this seems impossible. Fortunately, however, libraries and information and technology providers are now making an effort to find a middle course that meets the requirements of both data providers and users. They are doing this through resource integration.
-
Veen, T. van; Oldroyd, B.: Search and retrieval in The European Library : a new approach (2004)
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- Abstract
- The objective of the European Library (TEL) project [TEL] was to set up a co-operative framework and specify a system for integrated access to the major collections of the European national libraries. This has been achieved by successfully applying a new approach for search and retrieval via URLs (SRU) [ZiNG] combined with a new metadata paradigm. One aim of the TEL approach is to have a low barrier of entry into TEL, and this has driven our choice for the technical solution described here. The solution comprises portal and client functionality running completely in the browser, resulting in a low implementation barrier and maximum scalability, as well as giving users control over the search interface and what collections to search. In this article we will describe, step by step, the development of both the search and retrieval architecture and the metadata infrastructure in the European Library project. We will show that SRU is a good alternative to the Z39.50 protocol and can be implemented without losing investments in current Z39.50 implementations. The metadata model being used by TEL is a Dublin Core Application Profile, and we have taken into account that functional requirements will change over time and therefore the metadata model will need to be able to evolve in a controlled way. We make this possible by means of a central metadata registry containing all characteristics of the metadata in TEL. Finally, we provide two scenarios to show how the TEL concept can be developed and extended, with applications capable of increasing their functionality by "learning" new metadata or protocol options.
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Müller, B.; Poley, C.; Pössel, J.; Hagelstein, A.; Gübitz, T.: LIVIVO - the vertical search engine for life sciences (2017)
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- Abstract
- The explosive growth of literature and data in the life sciences challenges researchers to keep track of current advancements in their disciplines. Novel approaches in the life science like the One Health paradigm require integrated methodologies in order to link and connect heterogeneous information from databases and literature resources. Current publications in the life sciences are increasingly characterized by the employment of trans-disciplinary methodologies comprising molecular and cell biology, genetics, genomic, epigenomic, transcriptional and proteomic high throughput technologies with data from humans, plants, and animals. The literature search engine LIVIVO empowers retrieval functionality by incorporating various literature resources from medicine, health, environment, agriculture and nutrition. LIVIVO is developed in-house by ZB MED - Information Centre for Life Sciences. It provides a user-friendly and usability-tested search interface with a corpus of 55 Million citations derived from 50 databases. Standardized application programming interfaces are available for data export and high throughput retrieval. The search functions allow for semantic retrieval with filtering options based on life science entities. The service oriented architecture of LIVIVO uses four different implementation layers to deliver search services. A Knowledge Environment is developed by ZB MED to deal with the heterogeneity of data as an integrative approach to model, store, and link semantic concepts within literature resources and databases. Future work will focus on the exploitation of life science ontologies and on the employment of NLP technologies in order to improve query expansion, filters in faceted search, and concept based relevancy rankings in LIVIVO.
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Stempfhuber, M.; Zapilko, B.: Modelling text-fact-integration in digital libraries (2009)
0.01
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- Abstract
- Digital Libraries currently face the challenge of integrating many different types of research information (e.g. publications, primary data, expert's profiles, institutional profiles, project information etc.) according to their scientific users' needs. To date no general, integrated model for knowledge organization and retrieval in Digital Libraries exists. This causes the problem of structural and semantic heterogeneity due to the wide range of metadata standards, indexing vocabularies and indexing approaches used for different types of information. The research presented in this paper focuses on areas in which activities are being undertaken in the field of Digital Libraries in order to treat semantic interoperability problems. We present a model for the integrated retrieval of factual and textual data which combines multiple approaches to semantic interoperability und sets them into context. Embedded in the research cycle, traditional content indexing methods for publications meet the newer, but rarely used ontology-based approaches which seem to be better suited for representing complex information like the one contained in survey data. The benefits of our model are (1) easy re-use of available knowledge organisation systems and (2) reduced efforts for domain modelling with ontologies.
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Hudon, M.: Subject access to Web resources in education (2003)
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- Source
- Subject retrieval in a networked environment: Proceedings of the IFLA Satellite Meeting held in Dublin, OH, 14-16 August 2001 and sponsored by the IFLA Classification and Indexing Section, the IFLA Information Technology Section and OCLC. Ed.: I.C. McIlwaine
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Klas, C.-P.; Kriewel, S.; Schaefer, A.; Fischer, G.: ¬Das DAFFODIL System : strategische Literaturrecherche in Digitalen Bibliotheken (2006)
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- Source
- Effektive Information Retrieval Verfahren in Theorie und Praxis: ausgewählte und erweiterte Beiträge des Vierten Hildesheimer Evaluierungs- und Retrievalworkshop (HIER 2005), Hildesheim, 20.7.2005. Hrsg.: T. Mandl u. C. Womser-Hacker
