-
Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004)
0.03
0.027711315 = product of:
0.04156697 = sum of:
0.029666137 = weight(_text_:electronic in 2509) [ClassicSimilarity], result of:
0.029666137 = score(doc=2509,freq=2.0), product of:
0.19623034 = queryWeight, product of:
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.05019314 = queryNorm
0.15118018 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.011900836 = product of:
0.023801671 = sum of:
0.023801671 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
0.023801671 = score(doc=2509,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.1354154 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Source
- Electronic library. 22(2004) no.2, S.112-120
-
Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986)
0.02
0.018134607 = product of:
0.05440382 = sum of:
0.05440382 = product of:
0.10880764 = sum of:
0.10880764 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
0.10880764 = score(doc=402,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.61904186 = fieldWeight in 402, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=402)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Information processing and management. 22(1986) no.6, S.465-476
-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.02
0.01586778 = product of:
0.047603343 = sum of:
0.047603343 = product of:
0.095206685 = sum of:
0.095206685 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.095206685 = score(doc=2134,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.5416616 = fieldWeight in 2134, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=2134)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 30. 3.2001 13:32:22
-
Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000)
0.02
0.01586778 = product of:
0.047603343 = sum of:
0.047603343 = product of:
0.095206685 = sum of:
0.095206685 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
0.095206685 = score(doc=3445,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.5416616 = fieldWeight in 3445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=3445)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 25. 8.2005 17:42:22
-
Quiroga, L.M.; Mostafa, J.: ¬An experiment in building profiles in information filtering : the role of context of user relevance feedback (2002)
0.01
0.014126732 = product of:
0.042380195 = sum of:
0.042380195 = weight(_text_:electronic in 2579) [ClassicSimilarity], result of:
0.042380195 = score(doc=2579,freq=2.0), product of:
0.19623034 = queryWeight, product of:
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.05019314 = queryNorm
0.21597168 = fieldWeight in 2579, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.0390625 = fieldNorm(doc=2579)
0.33333334 = coord(1/3)
- Abstract
- An experiment was conducted to see how relevance feedback could be used to build and adjust profiles to improve the performance of filtering systems. Data was collected during the system interaction of 18 graduate students with SIFTER (Smart Information Filtering Technology for Electronic Resources), a filtering system that ranks incoming information based on users' profiles. The data set came from a collection of 6000 records concerning consumer health. In the first phase of the study, three different modes of profile acquisition were compared. The explicit mode allowed users to directly specify the profile; the implicit mode utilized relevance feedback to create and refine the profile; and the combined mode allowed users to initialize the profile and to continuously refine it using relevance feedback. Filtering performance, measured in terms of Normalized Precision, showed that the three approaches were significantly different ( [small alpha, Greek] =0.05 and p =0.012). The explicit mode of profile acquisition consistently produced superior results. Exclusive reliance on relevance feedback in the implicit mode resulted in inferior performance. The low performance obtained by the implicit acquisition mode motivated the second phase of the study, which aimed to clarify the role of context in relevance feedback judgments. An inductive content analysis of thinking aloud protocols showed dimensions that were highly situational, establishing the importance context plays in feedback relevance assessments. Results suggest the need for better representation of documents, profiles, and relevance feedback mechanisms that incorporate dimensions identified in this research.
-
Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986)
0.01
0.013600955 = product of:
0.040802862 = sum of:
0.040802862 = product of:
0.081605725 = sum of:
0.081605725 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
0.081605725 = score(doc=58,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.46428138 = fieldWeight in 58, 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=58)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 14. 6.2015 22:12:44
-
Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986)
0.01
0.013600955 = product of:
0.040802862 = sum of:
0.040802862 = product of:
0.081605725 = sum of:
0.081605725 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
0.081605725 = score(doc=2051,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.46428138 = fieldWeight in 2051, 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=2051)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 14. 6.2015 22:12:56
-
Biskri, I.; Rompré, L.: Using association rules for query reformulation (2012)
0.01
0.0132371 = product of:
0.0397113 = sum of:
0.0397113 = product of:
0.0794226 = sum of:
0.0794226 = weight(_text_:publishing in 92) [ClassicSimilarity], result of:
0.0794226 = score(doc=92,freq=2.0), product of:
0.24522576 = queryWeight, product of:
4.885643 = idf(docFreq=907, maxDocs=44218)
0.05019314 = queryNorm
0.32387543 = fieldWeight in 92, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.885643 = idf(docFreq=907, maxDocs=44218)
0.046875 = fieldNorm(doc=92)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Imprint
- Hershey, PA : IGI Publishing
-
Habernal, I.; Konopík, M.; Rohlík, O.: Question answering (2012)
0.01
0.0132371 = product of:
0.0397113 = sum of:
0.0397113 = product of:
0.0794226 = sum of:
0.0794226 = weight(_text_:publishing in 101) [ClassicSimilarity], result of:
0.0794226 = score(doc=101,freq=2.0), product of:
0.24522576 = queryWeight, product of:
4.885643 = idf(docFreq=907, maxDocs=44218)
0.05019314 = queryNorm
0.32387543 = fieldWeight in 101, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.885643 = idf(docFreq=907, maxDocs=44218)
0.046875 = fieldNorm(doc=101)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Imprint
- Hershey, PA : IGI Publishing
-
Jacso, P.: Testing the calculation of a realistic h-index in Google Scholar, Scopus, and Web of Science for F. W. Lancaster (2008)
0.01
0.011030916 = product of:
0.03309275 = sum of:
0.03309275 = product of:
0.0661855 = sum of:
0.0661855 = weight(_text_:publishing in 5586) [ClassicSimilarity], result of:
0.0661855 = score(doc=5586,freq=2.0), product of:
0.24522576 = queryWeight, product of:
4.885643 = idf(docFreq=907, maxDocs=44218)
0.05019314 = queryNorm
0.26989618 = fieldWeight in 5586, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.885643 = idf(docFreq=907, maxDocs=44218)
0.0390625 = fieldNorm(doc=5586)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Abstract
- This paper focuses on the practical limitations in the content and software of the databases that are used to calculate the h-index for assessing the publishing productivity and impact of researchers. To celebrate F. W. Lancaster's biological age of seventy-five, and "scientific age" of forty-five, this paper discusses the related features of Google Scholar, Scopus, and Web of Science (WoS), and demonstrates in the latter how a much more realistic and fair h-index can be computed for F. W. Lancaster than the one produced automatically. Browsing and searching the cited reference index of the 1945-2007 edition of WoS, which in my estimate has over a hundred million "orphan references" that have no counterpart master records to be attached to, and "stray references" that cite papers which do have master records but cannot be identified by the matching algorithm because of errors of omission and commission in the references of the citing works, can bring up hundreds of additional cited references given to works of an accomplished author but are ignored in the automatic process of calculating the h-index. The partially manual process doubled the h-index value for F. W. Lancaster from 13 to 26, which is a much more realistic value for an information scientist and professor of his stature.
-
MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004)
0.01
0.0090673035 = product of:
0.02720191 = sum of:
0.02720191 = product of:
0.05440382 = sum of:
0.05440382 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
0.05440382 = score(doc=5108,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.30952093 = fieldWeight in 5108, 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=5108)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 20. 1.2007 18:30:22
-
Faloutsos, C.: Signature files (1992)
0.01
0.0090673035 = product of:
0.02720191 = sum of:
0.02720191 = product of:
0.05440382 = sum of:
0.05440382 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
0.05440382 = score(doc=3499,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.30952093 = fieldWeight in 3499, 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=3499)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 7. 5.1999 15:22:48
-
Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003)
0.01
0.0090673035 = product of:
0.02720191 = sum of:
0.02720191 = product of:
0.05440382 = sum of:
0.05440382 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
0.05440382 = score(doc=1422,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.30952093 = fieldWeight in 1422, 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=1422)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2003 19:27:23
-
Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014)
0.01
0.0090673035 = product of:
0.02720191 = sum of:
0.02720191 = product of:
0.05440382 = sum of:
0.05440382 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
0.05440382 = score(doc=1431,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.30952093 = fieldWeight in 1431, 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=1431)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 8.2014 17:05:18
-
Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014)
0.01
0.0090673035 = product of:
0.02720191 = sum of:
0.02720191 = product of:
0.05440382 = sum of:
0.05440382 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
0.05440382 = score(doc=1484,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.30952093 = fieldWeight in 1484, 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=1484)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 13. 9.2014 14:45:22
-
Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015)
0.01
0.00801444 = product of:
0.024043318 = sum of:
0.024043318 = product of:
0.048086636 = sum of:
0.048086636 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
0.048086636 = score(doc=2591,freq=4.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.27358043 = fieldWeight in 2591, 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=2591)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 20. 1.2015 18:30:22
18. 9.2018 18:22:56
-
Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.01
0.00793389 = product of:
0.023801671 = sum of:
0.023801671 = product of:
0.047603343 = sum of:
0.047603343 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.047603343 = score(doc=1319,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.2708308 = fieldWeight in 1319, 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=1319)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 1. 8.1996 22:08:06
-
Kanaeva, Z.: Ranking: Google und CiteSeer (2005)
0.01
0.00793389 = product of:
0.023801671 = sum of:
0.023801671 = product of:
0.047603343 = sum of:
0.047603343 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
0.047603343 = score(doc=3276,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.2708308 = fieldWeight in 3276, 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=3276)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 20. 3.2005 16:23:22
-
Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996)
0.01
0.0068004774 = product of:
0.020401431 = sum of:
0.020401431 = product of:
0.040802862 = sum of:
0.040802862 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
0.040802862 = score(doc=5123,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.23214069 = fieldWeight in 5123, 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=5123)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 12. 9.1996 13:56:22
-
Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996)
0.01
0.0068004774 = product of:
0.020401431 = sum of:
0.020401431 = product of:
0.040802862 = sum of:
0.040802862 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
0.040802862 = score(doc=6973,freq=2.0), product of:
0.17576782 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05019314 = queryNorm
0.23214069 = fieldWeight in 6973, 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=6973)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
