-
Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
0.11
0.11135591 = product of:
0.22271182 = sum of:
0.22271182 = product of:
0.44542363 = sum of:
0.17380863 = weight(_text_:3a in 692) [ClassicSimilarity], result of:
0.17380863 = score(doc=692,freq=2.0), product of:
0.37110972 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.043773204 = queryNorm
0.46834838 = fieldWeight in 692, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=692)
0.271615 = weight(_text_:2c in 692) [ClassicSimilarity], result of:
0.271615 = score(doc=692,freq=2.0), product of:
0.46392047 = queryWeight, product of:
10.598275 = idf(docFreq=2, maxDocs=44218)
0.043773204 = queryNorm
0.5854775 = fieldWeight in 692, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
10.598275 = idf(docFreq=2, maxDocs=44218)
0.0390625 = fieldNorm(doc=692)
0.5 = coord(2/4)
0.5 = coord(1/2)
- Content
- Vgl.: https://www.semanticscholar.org/paper/Piaget-%E2%80%99-s-Constructivism-%2C-Papert-%E2%80%99-s-%3A-What-%E2%80%99-s-Ackermann/89cbcc1e740a4591443ff4765a6ae8df0fdf5554. Darunter weitere Hinweise auf verwandte Beiträge. Auch unter: Learning Group Publication 5(2001) no.3, S.438.
-
Lancaster, F.W.: Do indexing and abstracting have a future? (2003)
0.08
0.07515312 = product of:
0.15030624 = sum of:
0.15030624 = product of:
0.30061248 = sum of:
0.30061248 = weight(_text_:f.w in 3761) [ClassicSimilarity], result of:
0.30061248 = score(doc=3761,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.9542067 = fieldWeight in 3761, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.09375 = fieldNorm(doc=3761)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Lancaster, F.W.: Precision and recall (2009)
0.07
0.070855044 = product of:
0.14171009 = sum of:
0.14171009 = product of:
0.28342018 = sum of:
0.28342018 = weight(_text_:f.w in 3866) [ClassicSimilarity], result of:
0.28342018 = score(doc=3866,freq=4.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.8996347 = fieldWeight in 3866, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.0625 = fieldNorm(doc=3866)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- F.W. Lancaster's work has been immensely influential in library and information science. He has written on indexing and information system evaluation, and has been looked to as a pioneer in many areas. Here he describes precision and recall, the two most fundamental and widespread measures of information retrieval effectiveness.
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
0.07
0.069934584 = sum of:
0.05214259 = product of:
0.20857036 = sum of:
0.20857036 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
0.20857036 = score(doc=562,freq=2.0), product of:
0.37110972 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.043773204 = queryNorm
0.56201804 = fieldWeight in 562, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=562)
0.25 = coord(1/4)
0.017791994 = product of:
0.035583988 = sum of:
0.035583988 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
0.035583988 = score(doc=562,freq=2.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.23214069 = fieldWeight in 562, 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=562)
0.5 = coord(1/2)
- Content
- Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
- Date
- 8. 1.2013 10:22:32
-
Schwartz, C.: Thesauri and facets and tags, Oh my! : a look at three decades in subject analysis (2008)
0.04
0.043839317 = product of:
0.08767863 = sum of:
0.08767863 = product of:
0.17535727 = sum of:
0.17535727 = weight(_text_:f.w in 5566) [ClassicSimilarity], result of:
0.17535727 = score(doc=5566,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.55662054 = fieldWeight in 5566, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.0546875 = fieldNorm(doc=5566)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.
-
Lancaster, F.W.: Indexing and abstracting in theory and practice (2003)
0.04
0.03757656 = product of:
0.07515312 = sum of:
0.07515312 = product of:
0.15030624 = sum of:
0.15030624 = weight(_text_:f.w in 4913) [ClassicSimilarity], result of:
0.15030624 = score(doc=4913,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.47710335 = fieldWeight in 4913, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.046875 = fieldNorm(doc=4913)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Tenopir, C.: Online systems for information access and retrieval (2008)
0.04
0.03757656 = product of:
0.07515312 = sum of:
0.07515312 = product of:
0.15030624 = sum of:
0.15030624 = weight(_text_:f.w in 5587) [ClassicSimilarity], result of:
0.15030624 = score(doc=5587,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.47710335 = fieldWeight in 5587, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.046875 = fieldNorm(doc=5587)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.
-
Hawking, D.; Robertson, S.: On collection size and retrieval effectiveness (2003)
0.03
0.03354891 = product of:
0.06709782 = sum of:
0.06709782 = product of:
0.13419564 = sum of:
0.13419564 = weight(_text_:22 in 4109) [ClassicSimilarity], result of:
0.13419564 = score(doc=4109,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.8754574 = fieldWeight in 4109, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=4109)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 14. 8.2005 14:22:22
-
Song, F.W.: Virtual communities : bowling alone, online together (2009)
0.03
0.0313138 = product of:
0.0626276 = sum of:
0.0626276 = product of:
0.1252552 = sum of:
0.1252552 = weight(_text_:f.w in 3287) [ClassicSimilarity], result of:
0.1252552 = score(doc=3287,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.3975861 = fieldWeight in 3287, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.0390625 = fieldNorm(doc=3287)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Saracevic, T.: Effects of inconsistent relevance judgments on information retrieval test results : a historical perspective (2008)
0.03
0.0313138 = product of:
0.0626276 = sum of:
0.0626276 = product of:
0.1252552 = sum of:
0.1252552 = weight(_text_:f.w in 5585) [ClassicSimilarity], result of:
0.1252552 = score(doc=5585,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.3975861 = fieldWeight in 5585, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.0390625 = fieldNorm(doc=5585)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.
-
Jacso, P.: Testing the calculation of a realistic h-index in Google Scholar, Scopus, and Web of Science for F. W. Lancaster (2008)
0.03
0.0313138 = product of:
0.0626276 = sum of:
0.0626276 = product of:
0.1252552 = sum of:
0.1252552 = weight(_text_:f.w in 5586) [ClassicSimilarity], result of:
0.1252552 = score(doc=5586,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
0.3975861 = fieldWeight in 5586, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.0390625 = fieldNorm(doc=5586)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.
-
Buzydlowski, J.W.; White, H.D.; Lin, X.: Term Co-occurrence Analysis as an Interface for Digital Libraries (2002)
0.03
0.03081664 = product of:
0.06163328 = sum of:
0.06163328 = product of:
0.12326656 = sum of:
0.12326656 = weight(_text_:22 in 1339) [ClassicSimilarity], result of:
0.12326656 = score(doc=1339,freq=6.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.804159 = fieldWeight in 1339, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1339)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:16:22
-
Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005)
0.03
0.030416513 = product of:
0.060833026 = sum of:
0.060833026 = product of:
0.2433321 = sum of:
0.2433321 = weight(_text_:3a in 306) [ClassicSimilarity], result of:
0.2433321 = score(doc=306,freq=2.0), product of:
0.37110972 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.043773204 = queryNorm
0.65568775 = fieldWeight in 306, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0546875 = fieldNorm(doc=306)
0.25 = coord(1/4)
0.5 = coord(1/2)
- Content
- Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
-
Hemminger, B.M.: Introduction to the special issue on bioinformatics (2005)
0.03
0.029355295 = product of:
0.05871059 = sum of:
0.05871059 = product of:
0.11742118 = sum of:
0.11742118 = weight(_text_:22 in 4189) [ClassicSimilarity], result of:
0.11742118 = score(doc=4189,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.76602525 = fieldWeight in 4189, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=4189)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 14:19:22
-
Mas, S.; Marleau, Y.: Proposition of a faceted classification model to support corporate information organization and digital records management (2009)
0.03
0.026071295 = product of:
0.05214259 = sum of:
0.05214259 = product of:
0.20857036 = sum of:
0.20857036 = weight(_text_:3a in 2918) [ClassicSimilarity], result of:
0.20857036 = score(doc=2918,freq=2.0), product of:
0.37110972 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.043773204 = queryNorm
0.56201804 = fieldWeight in 2918, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2918)
0.25 = coord(1/4)
0.5 = coord(1/2)
- Footnote
- Vgl.: http://ieeexplore.ieee.org/Xplore/login.jsp?reload=true&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4755313%2F4755314%2F04755480.pdf%3Farnumber%3D4755480&authDecision=-203.
-
Chen, C.: Top Ten Problems in Visual Interfaces to Digital Libraries (2002)
0.03
0.025161682 = product of:
0.050323363 = sum of:
0.050323363 = product of:
0.10064673 = sum of:
0.10064673 = weight(_text_:22 in 4840) [ClassicSimilarity], result of:
0.10064673 = score(doc=4840,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.6565931 = fieldWeight in 4840, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4840)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:13:11
-
Harris, M.: Contexts of justification (2001)
0.03
0.025161682 = product of:
0.050323363 = sum of:
0.050323363 = product of:
0.10064673 = sum of:
0.10064673 = weight(_text_:22 in 5647) [ClassicSimilarity], result of:
0.10064673 = score(doc=5647,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.6565931 = fieldWeight in 5647, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=5647)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Erwiderung auf: Graham, L.R.: Do mathematical equations display social attributes? in: Mathematical intelligencer 22(2000) no.3, S.31-36
- Source
- Mathematical intelligencer. 23(2001) no.1, S.18-22
-
Shen, R.; Wang, J.; Fox, E.A.: ¬A Lightweight Protocol between Digital Libraries and Visualization Systems (2002)
0.03
0.025161682 = product of:
0.050323363 = sum of:
0.050323363 = product of:
0.10064673 = sum of:
0.10064673 = weight(_text_:22 in 666) [ClassicSimilarity], result of:
0.10064673 = score(doc=666,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.6565931 = fieldWeight in 666, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=666)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:15:14
-
Börner, K.; Chen, C.: Visual Interfaces to Digital Libraries : Motivation, Utilization, and Socio-technical Challenges (2002)
0.03
0.025161682 = product of:
0.050323363 = sum of:
0.050323363 = product of:
0.10064673 = sum of:
0.10064673 = weight(_text_:22 in 1359) [ClassicSimilarity], result of:
0.10064673 = score(doc=1359,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.6565931 = fieldWeight in 1359, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1359)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:20:07
-
Christoffel, M.; Schmitt, B.: Accessing Libraries as Easy as a Game (2002)
0.03
0.025161682 = product of:
0.050323363 = sum of:
0.050323363 = product of:
0.10064673 = sum of:
0.10064673 = weight(_text_:22 in 1361) [ClassicSimilarity], result of:
0.10064673 = score(doc=1361,freq=4.0), product of:
0.15328631 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043773204 = queryNorm
0.6565931 = fieldWeight in 1361, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1361)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:19:01