-
Veen, T. van; Oldroyd, B.: Search and retrieval in The European Library : a new approach (2004)
0.03
0.025006426 = product of:
0.07501928 = sum of:
0.07501928 = weight(_text_:search in 1164) [ClassicSimilarity], result of:
0.07501928 = score(doc=1164,freq=10.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.4293381 = fieldWeight in 1164, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0390625 = fieldNorm(doc=1164)
0.33333334 = coord(1/3)
- 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.
-
Fang, L.: ¬A developing search service : heterogeneous resources integration and retrieval system (2004)
0.02
0.019369897 = product of:
0.058109686 = sum of:
0.058109686 = weight(_text_:search in 1193) [ClassicSimilarity], result of:
0.058109686 = score(doc=1193,freq=6.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.33256388 = fieldWeight in 1193, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0390625 = fieldNorm(doc=1193)
0.33333334 = coord(1/3)
- 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.
-
Milanesi, C.: Möglichkeiten der Kooperation im Rahmen von Subject Gateways : das Euler-Projekt im Vergleich mit weiteren europäischen Projekten (2001)
0.01
0.013622571 = product of:
0.040867712 = sum of:
0.040867712 = product of:
0.081735425 = sum of:
0.081735425 = weight(_text_:22 in 4865) [ClassicSimilarity], result of:
0.081735425 = score(doc=4865,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.46428138 = fieldWeight in 4865, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4865)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 6.2002 19:41:59
-
Kaizik, A.; Gödert, W.; Milanesi, C.: Erfahrungen und Ergebnisse aus der Evaluierung des EU-Projektes EULER im Rahmen des an der FH Köln angesiedelten Projektes EJECT (Evaluation von Subject Gateways des World Wide Web (2001)
0.01
0.008027177 = product of:
0.024081532 = sum of:
0.024081532 = product of:
0.048163064 = sum of:
0.048163064 = weight(_text_:22 in 5801) [ClassicSimilarity], result of:
0.048163064 = score(doc=5801,freq=4.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.27358043 = fieldWeight in 5801, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=5801)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 6.2002 19:42:22
-
Heery, R.: Information gateways : collaboration and content (2000)
0.01
0.007946501 = product of:
0.0238395 = sum of:
0.0238395 = product of:
0.047679 = sum of:
0.047679 = weight(_text_:22 in 4866) [ClassicSimilarity], result of:
0.047679 = score(doc=4866,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.2708308 = fieldWeight in 4866, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=4866)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 6.2002 19:38:54
-
Neuroth, H.; Lepschy, P.: ¬Das EU-Projekt Renardus (2001)
0.01
0.0068112854 = product of:
0.020433856 = sum of:
0.020433856 = product of:
0.040867712 = sum of:
0.040867712 = weight(_text_:22 in 5589) [ClassicSimilarity], result of:
0.040867712 = score(doc=5589,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.23214069 = fieldWeight in 5589, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5589)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 6.2002 19:32:15
-
Meiert, M.: Elektronische Publikationen an Hochschulen : Modellierung des elektronischen Publikationsprozesses am Beispiel der Universität Hildesheim (2006)
0.01
0.0068112854 = product of:
0.020433856 = sum of:
0.020433856 = product of:
0.040867712 = sum of:
0.040867712 = weight(_text_:22 in 5974) [ClassicSimilarity], result of:
0.040867712 = score(doc=5974,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.23214069 = fieldWeight in 5974, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5974)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 1. 9.2006 13:22:15
