-
Callan, J.: Distributed information retrieval (2000)
0.01
0.014134051 = product of:
0.084804304 = sum of:
0.084804304 = weight(_text_:ranking in 31) [ClassicSimilarity], result of:
0.084804304 = score(doc=31,freq=2.0), product of:
0.20271951 = queryWeight, product of:
5.4090285 = idf(docFreq=537, maxDocs=44218)
0.03747799 = queryNorm
0.4183332 = fieldWeight in 31, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.4090285 = idf(docFreq=537, maxDocs=44218)
0.0546875 = fieldNorm(doc=31)
0.16666667 = coord(1/6)
- Abstract
- A multi-database model of distributed information retrieval is presented, in which people are assumed to have access to many searchable text databases. In such an environment, full-text information retrieval consists of discovering database contents, ranking databases by their expected ability to satisfy the query, searching a small number of databases, and merging results returned by different databases. This paper presents algorithms for each task. It also discusses how to reorganize conventional test collections into multi-database testbeds, and evaluation methodologies for multi-database experiments. A broad and diverse group of experimental results is presented to demonstrate that the algorithms are effective, efficient, robust, and scalable
-
Dempsey, L.; Russell, R.; Kirriemur, J.W.: Towards distributed library systems : Z39.50 in a European context (1996)
0.01
0.009068082 = product of:
0.05440849 = sum of:
0.05440849 = product of:
0.081612736 = sum of:
0.04099074 = weight(_text_:29 in 127) [ClassicSimilarity], result of:
0.04099074 = score(doc=127,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.31092256 = fieldWeight in 127, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=127)
0.040622 = weight(_text_:22 in 127) [ClassicSimilarity], result of:
0.040622 = score(doc=127,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.30952093 = fieldWeight in 127, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=127)
0.6666667 = coord(2/3)
0.16666667 = coord(1/6)
- Date
- 3. 3.1999 17:29:59
- Source
- Program. 30(1996) no.1, S.1-22
-
Groenbaek, K.; Trigg, R.H.: From Web to workplace : designing open hypermedia systems (1999)
0.00
0.0034158952 = product of:
0.02049537 = sum of:
0.02049537 = product of:
0.06148611 = sum of:
0.06148611 = weight(_text_:29 in 6096) [ClassicSimilarity], result of:
0.06148611 = score(doc=6096,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.46638384 = fieldWeight in 6096, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.09375 = fieldNorm(doc=6096)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 21. 4.2001 12:58:29
-
Arch-Int, N.; Sophatsathit, P.: ¬A semantic information gathering approach for heterogeneous information sources on WWW (2003)
0.00
0.0034158952 = product of:
0.02049537 = sum of:
0.02049537 = product of:
0.06148611 = sum of:
0.06148611 = weight(_text_:29 in 4694) [ClassicSimilarity], result of:
0.06148611 = score(doc=4694,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.46638384 = fieldWeight in 4694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.09375 = fieldNorm(doc=4694)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Journal of information science. 29(2003) no.5, S.357-374
-
Holm, L.A.: ONE project : results and experiences (1999)
0.00
0.0028465795 = product of:
0.017079476 = sum of:
0.017079476 = product of:
0.051238425 = sum of:
0.051238425 = weight(_text_:29 in 6460) [ClassicSimilarity], result of:
0.051238425 = score(doc=6460,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.38865322 = fieldWeight in 6460, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=6460)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- International cataloguing and bibliographic control. 28(1999) no.1, S.29-33
-
Ostergren, M.; Wright, G.: Creating a bibliographic database for a widely distributed collection (1998)
0.00
0.0022772634 = product of:
0.013663581 = sum of:
0.013663581 = product of:
0.04099074 = sum of:
0.04099074 = weight(_text_:29 in 1503) [ClassicSimilarity], result of:
0.04099074 = score(doc=1503,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.31092256 = fieldWeight in 1503, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=1503)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 23. 7.1998 19:29:54
-
Ashton, J.: ONE: the final OPAC frontier (1998)
0.00
0.0022567778 = product of:
0.013540667 = sum of:
0.013540667 = product of:
0.040622 = sum of:
0.040622 = weight(_text_:22 in 2588) [ClassicSimilarity], result of:
0.040622 = score(doc=2588,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.30952093 = fieldWeight in 2588, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=2588)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Select newsletter. 1998, no.22, Spring, S.5-6
-
Lunau, C.D.: Z39.50: a critical component of the Canadian resource sharing infrastructure : implementation activities and results achieved (1997)
0.00
0.0022567778 = product of:
0.013540667 = sum of:
0.013540667 = product of:
0.040622 = sum of:
0.040622 = weight(_text_:22 in 3193) [ClassicSimilarity], result of:
0.040622 = score(doc=3193,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.30952093 = fieldWeight in 3193, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=3193)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 3. 3.1999 17:22:57
-
Burrows, T.: ¬The virtual catalogue : bibliographic access for the virtual library (1993)
0.00
0.0022567778 = product of:
0.013540667 = sum of:
0.013540667 = product of:
0.040622 = sum of:
0.040622 = weight(_text_:22 in 5286) [ClassicSimilarity], result of:
0.040622 = score(doc=5286,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.30952093 = fieldWeight in 5286, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=5286)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 8.10.2000 14:47:22
-
Sarinder, K.K.S.; Lim, L.H.S.; Merican, A.F.; Dimyati, K.: Biodiversity information retrieval across networked data sets (2010)
0.00
0.0020128356 = product of:
0.012077013 = sum of:
0.012077013 = product of:
0.036231037 = sum of:
0.036231037 = weight(_text_:29 in 3951) [ClassicSimilarity], result of:
0.036231037 = score(doc=3951,freq=4.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.2748193 = fieldWeight in 3951, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=3951)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 29. 8.2010 12:29:10
-
Stark, T.: ¬The Net and Z39.50 : toward a virtual union catalog (1997)
0.00
0.0019926056 = product of:
0.011955633 = sum of:
0.011955633 = product of:
0.035866898 = sum of:
0.035866898 = weight(_text_:29 in 3194) [ClassicSimilarity], result of:
0.035866898 = score(doc=3194,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.27205724 = fieldWeight in 3194, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=3194)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Computers in libraries. 17(1997) no.10, S.27-29
-
Friedrich, M.; Schimkat, R.-D.; Küchlin, W.: Information retrieval in distributed environments based on context-aware, proactive documents (2002)
0.00
0.0019926056 = product of:
0.011955633 = sum of:
0.011955633 = product of:
0.035866898 = sum of:
0.035866898 = weight(_text_:29 in 3608) [ClassicSimilarity], result of:
0.035866898 = score(doc=3608,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.27205724 = fieldWeight in 3608, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=3608)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase
-
Heery, R.: Information gateways : collaboration and content (2000)
0.00
0.0019746807 = product of:
0.011848084 = sum of:
0.011848084 = product of:
0.03554425 = sum of:
0.03554425 = weight(_text_:22 in 4866) [ClassicSimilarity], result of:
0.03554425 = score(doc=4866,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = 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)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 22. 6.2002 19:38:54
-
Vikor, D.L.; Gaumond, G.; Heath, F.M.: Building electronic cooperation in the 1990s : the Maryland, Georgia, and Texas experiences (1997)
0.00
0.0017079476 = product of:
0.010247685 = sum of:
0.010247685 = product of:
0.030743055 = sum of:
0.030743055 = weight(_text_:29 in 1680) [ClassicSimilarity], result of:
0.030743055 = score(doc=1680,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.23319192 = fieldWeight in 1680, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=1680)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 29. 7.1998 19:42:59
-
Lopatenko, A.; Asserson, A.; Jeffery, K.G.: CERIF - Information retrieval of research information in a distributed heterogeneous environment (2002)
0.00
0.0017079476 = product of:
0.010247685 = sum of:
0.010247685 = product of:
0.030743055 = sum of:
0.030743055 = weight(_text_:29 in 3597) [ClassicSimilarity], result of:
0.030743055 = score(doc=3597,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.23319192 = fieldWeight in 3597, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=3597)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase
-
Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006)
0.00
0.0016925833 = product of:
0.0101555 = sum of:
0.0101555 = product of:
0.030466499 = sum of:
0.030466499 = weight(_text_:22 in 5271) [ClassicSimilarity], result of:
0.030466499 = score(doc=5271,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.23214069 = fieldWeight in 5271, 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=5271)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 22. 7.2006 16:02:07
-
Nicholson, D.; Steele, M.: CATRIONA : a distributed, locally-oriented, Z39.50 OPAC-based approach to cataloguing the Internet (1996)
0.00
0.0016925833 = product of:
0.0101555 = sum of:
0.0101555 = product of:
0.030466499 = sum of:
0.030466499 = weight(_text_:22 in 603) [ClassicSimilarity], result of:
0.030466499 = score(doc=603,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.23214069 = fieldWeight in 603, 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=603)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Cataloging and classification quarterly. 22(1996) nos.3/4, S.127-141
-
Teets, M.; Murray, P.: Metasearch authentication and access management (2006)
0.00
0.0014232898 = product of:
0.008539738 = sum of:
0.008539738 = product of:
0.025619213 = sum of:
0.025619213 = weight(_text_:29 in 1154) [ClassicSimilarity], result of:
0.025619213 = score(doc=1154,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.19432661 = fieldWeight in 1154, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=1154)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 26.12.2011 16:29:10
-
Johnson, E.H.: Objects for distributed heterogeneous information retrieval (2000)
0.00
0.0014104862 = product of:
0.008462917 = sum of:
0.008462917 = product of:
0.025388751 = sum of:
0.025388751 = weight(_text_:22 in 6959) [ClassicSimilarity], result of:
0.025388751 = score(doc=6959,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.19345059 = fieldWeight in 6959, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=6959)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 22. 9.1997 19:16:05
-
Woldering, B.: Aufbau einer virtuellen europäischen Nationalbibliothek : Von Gabriel zu The European Library (2004)
0.00
0.0011386317 = product of:
0.0068317903 = sum of:
0.0068317903 = product of:
0.02049537 = sum of:
0.02049537 = weight(_text_:29 in 4950) [ClassicSimilarity], result of:
0.02049537 = score(doc=4950,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.15546128 = fieldWeight in 4950, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03125 = fieldNorm(doc=4950)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 15. 2.2006 11:25:29