-
Borkowski, C.: ¬An experimental system for the automatic identification of personal names and personal titles in newspaper texts (1967)
0.01
0.01376995 = product of:
0.0275399 = sum of:
0.0275399 = product of:
0.0826197 = sum of:
0.0826197 = weight(_text_:c in 5308) [ClassicSimilarity], result of:
0.0826197 = score(doc=5308,freq=2.0), product of:
0.15484828 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.044891298 = queryNorm
0.5335526 = fieldWeight in 5308, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.109375 = fieldNorm(doc=5308)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Nissen, C.: ¬Die Kataloge der Stadtbibliothek : Geschichte und Überblick (1963)
0.01
0.01376995 = product of:
0.0275399 = sum of:
0.0275399 = product of:
0.0826197 = sum of:
0.0826197 = weight(_text_:c in 7378) [ClassicSimilarity], result of:
0.0826197 = score(doc=7378,freq=2.0), product of:
0.15484828 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.044891298 = queryNorm
0.5335526 = fieldWeight in 7378, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.109375 = fieldNorm(doc=7378)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Coates, E.J.: CRG proposals for a new general classification (1969)
0.01
0.012164302 = product of:
0.024328604 = sum of:
0.024328604 = product of:
0.07298581 = sum of:
0.07298581 = weight(_text_:22 in 1283) [ClassicSimilarity], result of:
0.07298581 = score(doc=1283,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Pages
- S.19-22
-
Barden, B.R.; Denison, B.: Guide to the SLA loan collection of classification schemes and subject heading lists on deposit at Western Reserve Univ. as of March 20, 1961 (1961)
0.01
0.012164302 = product of:
0.024328604 = sum of:
0.024328604 = product of:
0.07298581 = sum of:
0.07298581 = weight(_text_:22 in 6157) [ClassicSimilarity], result of:
0.07298581 = score(doc=6157,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.46428138 = fieldWeight in 6157, 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=6157)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Footnote
- Rez. in: College and research libraries 22(1961) no.6, S.483-484 (A.R. Lindsay)
-
Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960)
0.01
0.012164302 = product of:
0.024328604 = sum of:
0.024328604 = product of:
0.07298581 = sum of:
0.07298581 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
0.07298581 = score(doc=6158,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.46428138 = fieldWeight in 6158, 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=6158)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Footnote
- Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
-
Gordon, T.J.; Helmer-Hirschberg, O.: Report on a long-range forecasting study (1964)
0.01
0.011468614 = product of:
0.022937229 = sum of:
0.022937229 = product of:
0.068811685 = sum of:
0.068811685 = weight(_text_:22 in 4204) [ClassicSimilarity], result of:
0.068811685 = score(doc=4204,freq=4.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.4377287 = fieldWeight in 4204, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4204)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 6.2018 13:24:08
22. 6.2018 13:54:52
-
Habermas, J.: Technik und Wissenschaft als »Ideologie« (1968)
0.01
0.011468614 = product of:
0.022937229 = sum of:
0.022937229 = product of:
0.068811685 = sum of:
0.068811685 = weight(_text_:22 in 1031) [ClassicSimilarity], result of:
0.068811685 = score(doc=1031,freq=4.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.4377287 = fieldWeight in 1031, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=1031)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 7.2023 20:22:54
-
Barnes, C.: Classification and cataloging of spoken records in academic libraries (1967)
0.01
0.009835679 = product of:
0.019671358 = sum of:
0.019671358 = product of:
0.05901407 = sum of:
0.05901407 = weight(_text_:c in 6252) [ClassicSimilarity], result of:
0.05901407 = score(doc=6252,freq=2.0), product of:
0.15484828 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.044891298 = queryNorm
0.381109 = fieldWeight in 6252, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.078125 = fieldNorm(doc=6252)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Habermas, J.: Technik und Wissenschaft als »Ideologie« (1968)
0.01
0.008601462 = product of:
0.017202923 = sum of:
0.017202923 = product of:
0.051608767 = sum of:
0.051608767 = weight(_text_:22 in 1032) [ClassicSimilarity], result of:
0.051608767 = score(doc=1032,freq=4.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.32829654 = fieldWeight in 1032, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=1032)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 7.2023 20:22:54
-
Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969)
0.01
0.008231806 = product of:
0.016463611 = sum of:
0.016463611 = product of:
0.049390834 = sum of:
0.049390834 = weight(_text_:i in 4155) [ClassicSimilarity], result of:
0.049390834 = score(doc=4155,freq=2.0), product of:
0.16931784 = queryWeight, product of:
3.7717297 = idf(docFreq=2765, maxDocs=44218)
0.044891298 = queryNorm
0.29170483 = fieldWeight in 4155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.7717297 = idf(docFreq=2765, maxDocs=44218)
0.0546875 = fieldNorm(doc=4155)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Drtina, J.: ¬Der Schlagwortkatalog (1961)
0.01
0.008109535 = product of:
0.01621907 = sum of:
0.01621907 = product of:
0.04865721 = sum of:
0.04865721 = weight(_text_:22 in 179) [ClassicSimilarity], result of:
0.04865721 = score(doc=179,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.30952093 = fieldWeight in 179, 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=179)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 5.2007 12:07:25
-
Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966)
0.01
0.007095843 = product of:
0.014191686 = sum of:
0.014191686 = product of:
0.042575058 = sum of:
0.042575058 = weight(_text_:22 in 2718) [ClassicSimilarity], result of:
0.042575058 = score(doc=2718,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.2708308 = fieldWeight in 2718, 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=2718)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Journal of documentation. 22(1966), S.203-209
-
Fill, K.: Einführung in das Wesen der Dezimalklassifikation (1969)
0.01
0.007095843 = product of:
0.014191686 = sum of:
0.014191686 = product of:
0.042575058 = sum of:
0.042575058 = weight(_text_:22 in 222) [ClassicSimilarity], result of:
0.042575058 = score(doc=222,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.2708308 = fieldWeight in 222, 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=222)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 4.2007 12:31:34
-
Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967)
0.00
0.0049178395 = product of:
0.009835679 = sum of:
0.009835679 = product of:
0.029507035 = sum of:
0.029507035 = weight(_text_:c in 5449) [ClassicSimilarity], result of:
0.029507035 = score(doc=5449,freq=2.0), product of:
0.15484828 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.044891298 = queryNorm
0.1905545 = fieldWeight in 5449, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=5449)
0.33333334 = coord(1/3)
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
-
Austin, D.: Prospects for a new general classification (1969)
0.00
0.0049178395 = product of:
0.009835679 = sum of:
0.009835679 = product of:
0.029507035 = sum of:
0.029507035 = weight(_text_:c in 1519) [ClassicSimilarity], result of:
0.029507035 = score(doc=1519,freq=2.0), product of:
0.15484828 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.044891298 = queryNorm
0.1905545 = fieldWeight in 1519, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=1519)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- In traditional classification schemes, the universe of knowledge is brokeii down into self- contained disciplines which are further analysed to the point at which a particular concept is located. This leads to problems of: (a) currency: keeping the scheme in line with new discoveries. (b) hospitality: allowing room for insertion of new subjects (c) cross-classification: a concept may be considered in such a way that it fits as logically into one discipline as another. Machine retrieval is also hampered by the fact that any individual concept is notated differently, depending on where in the scheme it appears. The approach now considered is from an organized universe of concepts, every concept being set down only once in an appropriate vocabulary, where it acquires the notation which identifies it wherever it is used. It has been found that all the concepts present in any compound subject can be handled as though they belong to one of two basic concept types, being either Entities or Attributes. In classing, these concepts are identified, and notation is selected from appropriate schedules. Subjects are then built according to formal rules, the final class number incorporating operators which convey the fundamental relationships between concepts. From this viewpoint, the Rules and Operators of the proposed system can be seen as the grammar of an IR language, and the schedules of Entities and Attributes as its vocabulary.
-
Riesman, D.; Denney, R.; Glazer, N.: ¬Die einsame Masse : eine Untersuchung der Wandlungen des amerikanischen Charakters (1962)
0.00
0.0030410755 = product of:
0.006082151 = sum of:
0.006082151 = product of:
0.018246453 = sum of:
0.018246453 = weight(_text_:22 in 359) [ClassicSimilarity], result of:
0.018246453 = score(doc=359,freq=2.0), product of:
0.15720168 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044891298 = queryNorm
0.116070345 = fieldWeight in 359, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0234375 = fieldNorm(doc=359)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 9.2021 16:02:03
