-
Zunde, P.; Dexter, M.E.: Indexing consistency and quality (1969)
0.02
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = product of:
0.08642699 = sum of:
0.08642699 = weight(_text_:p in 2264) [ClassicSimilarity], result of:
0.08642699 = score(doc=2264,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.63560283 = fieldWeight in 2264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.125 = fieldNorm(doc=2264)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Zunde, P.; Slamecka, V.: Distribution of indexing terms for maximum effeciency of information transmission (1967)
0.02
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = product of:
0.08642699 = sum of:
0.08642699 = weight(_text_:p in 5472) [ClassicSimilarity], result of:
0.08642699 = score(doc=5472,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.63560283 = fieldWeight in 5472, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.125 = fieldNorm(doc=5472)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Biskup, P.: Marx-Leninism and Soviet classification : some thoughts on classification theory and practice in the USSR (1963)
0.02
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = product of:
0.08642699 = sum of:
0.08642699 = weight(_text_:p in 7369) [ClassicSimilarity], result of:
0.08642699 = score(doc=7369,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.63560283 = fieldWeight in 7369, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.125 = fieldNorm(doc=7369)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Baxendale, P.: Content analysis, specification and control (1966)
0.02
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = product of:
0.08642699 = sum of:
0.08642699 = weight(_text_:p in 218) [ClassicSimilarity], result of:
0.08642699 = score(doc=218,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.63560283 = fieldWeight in 218, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.125 = fieldNorm(doc=218)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Hockett, C.F.: ¬The problem of universals in language (1963)
0.02
0.020495467 = product of:
0.040990934 = sum of:
0.040990934 = product of:
0.08198187 = sum of:
0.08198187 = weight(_text_:22 in 5591) [ClassicSimilarity], result of:
0.08198187 = score(doc=5591,freq=2.0), product of:
0.13243347 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.037818365 = queryNorm
0.61904186 = fieldWeight in 5591, 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=5591)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S. 1-22
-
Gardin, J.C.: Free classifications and faceted classifications : their exploitation with computers (1965)
0.02
0.018905902 = product of:
0.037811805 = sum of:
0.037811805 = product of:
0.07562361 = sum of:
0.07562361 = weight(_text_:p in 1682) [ClassicSimilarity], result of:
0.07562361 = score(doc=1682,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.55615246 = fieldWeight in 1682, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.109375 = fieldNorm(doc=1682)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Classification research. Proc. of the 2nd Int. Study Conf. ... , Elsinore, 14.-18.9.1964. Ed.: P. Atherton
-
Körner, H.G.: Short and flexible generic codes for mechanized information retrieval (1965)
0.02
0.018905902 = product of:
0.037811805 = sum of:
0.037811805 = product of:
0.07562361 = sum of:
0.07562361 = weight(_text_:p in 1961) [ClassicSimilarity], result of:
0.07562361 = score(doc=1961,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.55615246 = fieldWeight in 1961, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.109375 = fieldNorm(doc=1961)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Classification research. Proc. 2nd Int. Study Conf., Elsinore, 1964. Ed.: P. Atherton
-
Angell, R.S.: On the future of the Library of Congress Classification (1965)
0.02
0.018905902 = product of:
0.037811805 = sum of:
0.037811805 = product of:
0.07562361 = sum of:
0.07562361 = weight(_text_:p in 7348) [ClassicSimilarity], result of:
0.07562361 = score(doc=7348,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.55615246 = fieldWeight in 7348, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.109375 = fieldNorm(doc=7348)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Classification research. Proc. 2nd Int. Study Conf. ... Elsinore, 14.-18.8.1964. Ed.: P. Atherton
-
Fugmann, R.: Experiences with a faceted classification in organic chemistry using computers (1965)
0.02
0.018905902 = product of:
0.037811805 = sum of:
0.037811805 = product of:
0.07562361 = sum of:
0.07562361 = weight(_text_:p in 2629) [ClassicSimilarity], result of:
0.07562361 = score(doc=2629,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.55615246 = fieldWeight in 2629, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.109375 = fieldNorm(doc=2629)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Classification research: proceedings of the 2nd Int. Study Conf. ... Elsinore, Denmark. 14.-18.9.1964. Ed.: P. Atherton
-
Zunde, P.; Dexter, M.E.: Factors affecting indexing performance (1969)
0.02
0.01620506 = product of:
0.03241012 = sum of:
0.03241012 = product of:
0.06482024 = sum of:
0.06482024 = weight(_text_:p in 7496) [ClassicSimilarity], result of:
0.06482024 = score(doc=7496,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.47670212 = fieldWeight in 7496, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.09375 = fieldNorm(doc=7496)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Salton, G.; Lesk, M.E.: Computer evaluation of indexing and text processing (1968)
0.02
0.01620506 = product of:
0.03241012 = sum of:
0.03241012 = product of:
0.06482024 = sum of:
0.06482024 = weight(_text_:p in 77) [ClassicSimilarity], result of:
0.06482024 = score(doc=77,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.47670212 = fieldWeight in 77, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.09375 = fieldNorm(doc=77)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.60-84.
-
Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963)
0.02
0.01620506 = product of:
0.03241012 = sum of:
0.03241012 = product of:
0.06482024 = sum of:
0.06482024 = weight(_text_:p in 577) [ClassicSimilarity], result of:
0.06482024 = score(doc=577,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.47670212 = fieldWeight in 577, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.09375 = fieldNorm(doc=577)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.98-110.
-
Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961)
0.02
0.01620506 = product of:
0.03241012 = sum of:
0.03241012 = product of:
0.06482024 = sum of:
0.06482024 = weight(_text_:p in 1931) [ClassicSimilarity], result of:
0.06482024 = score(doc=1931,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.47670212 = fieldWeight in 1931, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.09375 = fieldNorm(doc=1931)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.223-246.
-
Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
0.02
0.01620506 = product of:
0.03241012 = sum of:
0.03241012 = product of:
0.06482024 = sum of:
0.06482024 = weight(_text_:p in 1957) [ClassicSimilarity], result of:
0.06482024 = score(doc=1957,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.47670212 = fieldWeight in 1957, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.09375 = fieldNorm(doc=1957)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
-
Coates, E.J.: CRG proposals for a new general classification (1969)
0.02
0.015371599 = product of:
0.030743198 = sum of:
0.030743198 = product of:
0.061486397 = sum of:
0.061486397 = weight(_text_:22 in 1283) [ClassicSimilarity], result of:
0.061486397 = score(doc=1283,freq=2.0), product of:
0.13243347 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.037818365 = queryNorm
0.46428138 = fieldWeight in 1283, 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=1283)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.19-22
-
Luhn, H.P.: ¬The automatic derivation of information retrieval encodements from machine-readable texts (1961)
0.01
0.013504217 = product of:
0.027008435 = sum of:
0.027008435 = product of:
0.05401687 = sum of:
0.05401687 = weight(_text_:p in 1926) [ClassicSimilarity], result of:
0.05401687 = score(doc=1926,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.39725178 = fieldWeight in 1926, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.078125 = fieldNorm(doc=1926)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.21-24.
-
Mooers, C.: ¬The indexing language of an information retrieval system (1963)
0.01
0.012809667 = product of:
0.025619334 = sum of:
0.025619334 = product of:
0.051238667 = sum of:
0.051238667 = weight(_text_:22 in 1641) [ClassicSimilarity], result of:
0.051238667 = score(doc=1641,freq=2.0), product of:
0.13243347 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.037818365 = queryNorm
0.38690117 = fieldWeight in 1641, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=1641)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information retrieval today: papers presented at an Institute conducted by the Library School and the Cetre for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by. Wesley Simonton
-
Melton, J.S.: ¬A use for the techniques of structural linguistics in documentation research (1965)
0.01
0.0108033735 = product of:
0.021606747 = sum of:
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = weight(_text_:p in 834) [ClassicSimilarity], result of:
0.043213494 = score(doc=834,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.31780142 = fieldWeight in 834, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.0625 = fieldNorm(doc=834)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Classification research. Proc. 2nd Int. Study Conf. ... Elsinore, 14.-18.8.1964. Ed.: P. Atherton
-
Wilson, P.: Subjects and the sense of position (1968)
0.01
0.0108033735 = product of:
0.021606747 = sum of:
0.021606747 = product of:
0.043213494 = sum of:
0.043213494 = weight(_text_:p in 1353) [ClassicSimilarity], result of:
0.043213494 = score(doc=1353,freq=2.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.31780142 = fieldWeight in 1353, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.0625 = fieldNorm(doc=1353)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967)
0.01
0.009548924 = product of:
0.019097848 = sum of:
0.019097848 = product of:
0.038195696 = sum of:
0.038195696 = weight(_text_:p in 5449) [ClassicSimilarity], result of:
0.038195696 = score(doc=5449,freq=4.0), product of:
0.1359764 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.037818365 = queryNorm
0.28089944 = fieldWeight in 5449, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.0390625 = fieldNorm(doc=5449)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- As an attempt to make a general structural theory of information retrieval, a documentation system (DS) is defined as a formal system consisting of (a) a set o of objects (documents); (b) a set A++ of elementary attributes (key-words), from which further attributes may be constructed: A++ generates A; (c) a set of axioms of the form X++(x)=m (m¯M, M a set of constant connecting attributes with objects: from the axioms further theorems (=true statements) may be constructed. By use of the theorems, different mappings O -> P(o) (P(o) set of all subsets of o) (search question -> set of documents retrieved) are defined. The type of a DS depends on two basic decisions: (1) choice of the rules for the construction of attributes and theorems, e.g., logical product in coordinate indexing; links. (2) choice of M; M may consist of the two constants 'applicable' and 'not applicable', or some positive integers, ...; Further practical decisions: A++ hierarchical or not; kind of mapping; introduction of roles (=further attributes). The most simple case - ordinary two-valued Coordinate Indexing - is discusssed in detail; o is a free distributive (but not Boolean) lattice, the homographic image a ring of subsets of o; instead of negation which is not useful, a useful retrieval operation 'praeternagation' is introduced. Furthermore these are discussed: a generalized definition of superimposed coding, some functions for the distance of objects or attributes; optimization and automatic derivation of classifications. The model takes into account term-term relations and document-document relations. It may serve as a structural framework in terms of which the functional problems of retrieval theory may be expressed more clearly
