-
Malsburg, C. von der: ¬The correlation theory of brain function (1981)
0.38
0.37704775 = product of:
0.52786684 = sum of:
0.051537555 = product of:
0.15461266 = sum of:
0.15461266 = weight(_text_:3a in 76) [ClassicSimilarity], result of:
0.15461266 = score(doc=76,freq=2.0), product of:
0.3301232 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.038938753 = queryNorm
0.46834838 = fieldWeight in 76, 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=76)
0.33333334 = coord(1/3)
0.15461266 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
0.15461266 = score(doc=76,freq=2.0), product of:
0.3301232 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.038938753 = queryNorm
0.46834838 = fieldWeight in 76, 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=76)
0.15461266 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
0.15461266 = score(doc=76,freq=2.0), product of:
0.3301232 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.038938753 = queryNorm
0.46834838 = fieldWeight in 76, 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=76)
0.012491328 = weight(_text_:with in 76) [ClassicSimilarity], result of:
0.012491328 = score(doc=76,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.1331223 = fieldWeight in 76, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0390625 = fieldNorm(doc=76)
0.15461266 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
0.15461266 = score(doc=76,freq=2.0), product of:
0.3301232 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.038938753 = queryNorm
0.46834838 = fieldWeight in 76, 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=76)
0.71428573 = coord(5/7)
- Abstract
- A summary of brain theory is given so far as it is contained within the framework of Localization Theory. Difficulties of this "conventional theory" are traced back to a specific deficiency: there is no way to express relations between active cells (as for instance their representing parts of the same object). A new theory is proposed to cure this deficiency. It introduces a new kind of dynamical control, termed synaptic modulation, according to which synapses switch between a conducting and a non- conducting state. The dynamics of this variable is controlled on a fast time scale by correlations in the temporal fine structure of cellular signals. Furthermore, conventional synaptic plasticity is replaced by a refined version. Synaptic modulation and plasticity form the basis for short-term and long-term memory, respectively. Signal correlations, shaped by the variable network, express structure and relationships within objects. In particular, the figure-ground problem may be solved in this way. Synaptic modulation introduces exibility into cerebral networks which is necessary to solve the invariance problem. Since momentarily useless connections are deactivated, interference between di erent memory traces can be reduced, and memory capacity increased, in comparison with conventional associative memory
- Source
- http%3A%2F%2Fcogprints.org%2F1380%2F1%2FvdM_correlation.pdf&usg=AOvVaw0g7DvZbQPb2U7dYb49b9v_
-
Fidel, R.: Online searching styles : a case-study-based model of searching behavior (1984)
0.03
0.029936418 = product of:
0.104777455 = sum of:
0.08978786 = weight(_text_:interactions in 1659) [ClassicSimilarity], result of:
0.08978786 = score(doc=1659,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.39097226 = fieldWeight in 1659, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.014989593 = weight(_text_:with in 1659) [ClassicSimilarity], result of:
0.014989593 = score(doc=1659,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.15974675 = fieldWeight in 1659, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.2857143 = coord(2/7)
- Abstract
- The model of operationalist and conceptualist searching styles describes searching behavior of experienced online searchers. It is based on the systematic observation of five experienced online searchers doing their regular, job-related searches, and on the analysis of 10 to 13 searches conducted by each of them. Operationalist searchers aim at optimal strategies to achieve precise retrieval; they use a large range of system capabilities in their interaction. They preserve the specific meaning of the request, and the aim of their interactions is an answer set representing the request precisely. Conceptualist searchers analyze a request by seeking to fit it into a faceted structure. They first enter the facet that represents the most important aspect of the request. Their search is then centered on retrieving subsets from this primary set by introducing additional facets. In contrast to the operationalists, they are primarily concerned with recall. During the interaction they preserve the faceted structure, but may change the specific meaning of the request. Although not comprehensive, the model aids in recognizing special and individual characteristics of searching behavior which provide explanations of previous research and guidelines for further investigations into the search process
-
Berman, S.: Where have all the moonies gone? (1984)
0.03
0.029929288 = product of:
0.209505 = sum of:
0.209505 = weight(_text_:interactions in 1589) [ClassicSimilarity], result of:
0.209505 = score(doc=1589,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.9122686 = fieldWeight in 1589, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.109375 = fieldNorm(doc=1589)
0.14285715 = coord(1/7)
- Source
- Reference services and technical services: interactions in library practice. Ed. by G. Stevenson et al
-
Gray, R.A.: Classification schemes as cognitive maps (1984)
0.03
0.029929288 = product of:
0.209505 = sum of:
0.209505 = weight(_text_:interactions in 1736) [ClassicSimilarity], result of:
0.209505 = score(doc=1736,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.9122686 = fieldWeight in 1736, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.109375 = fieldNorm(doc=1736)
0.14285715 = coord(1/7)
- Source
- Reference services and technical services: interactions in library practice. Ed. by Gordon Stevenson et al
-
Micco, M.; Smith, I.; Hsiao, S.A.; Intaravitak, S.: Knowledge representation : subject analysis (1987)
0.03
0.026657032 = product of:
0.093299605 = sum of:
0.024731567 = weight(_text_:with in 534) [ClassicSimilarity], result of:
0.024731567 = score(doc=534,freq=4.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.2635687 = fieldWeight in 534, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0546875 = fieldNorm(doc=534)
0.068568036 = product of:
0.13713607 = sum of:
0.13713607 = weight(_text_:humans in 534) [ClassicSimilarity], result of:
0.13713607 = score(doc=534,freq=2.0), product of:
0.26276368 = queryWeight, product of:
6.7481275 = idf(docFreq=140, maxDocs=44218)
0.038938753 = queryNorm
0.52189887 = fieldWeight in 534, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.7481275 = idf(docFreq=140, maxDocs=44218)
0.0546875 = fieldNorm(doc=534)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Describes the interim report of a project aimed at developing an expert system to deal with knowledge representation at the macro level. Once the expert system is operational it is hoped to compare the performance of brute force searching by means of keywords with that of an expert system designed to use minmax search strategies. The report focuses on the technique by which humans organise knowledge. The project was broken down into 4 key modules: diagnostics of information-seeking behaviour; network interface; subject access; graphics interface. The knowledge base includes a whole range of widely varied knowledge representation techniques from permuted keyword lists, and universal classification schemes to alphabetical indexes and specialised encyclopedias
-
Humphry, J.A.; Kramer-Greene, J.: ¬The DDC and its users : current policies (1984)
0.03
0.025653677 = product of:
0.17957573 = sum of:
0.17957573 = weight(_text_:interactions in 1737) [ClassicSimilarity], result of:
0.17957573 = score(doc=1737,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.7819445 = fieldWeight in 1737, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.09375 = fieldNorm(doc=1737)
0.14285715 = coord(1/7)
- Source
- Reference services and technical services: interactions in library practice. Ed. by G. Stevenson et al
-
Stevens, N.D.: ¬The flaw of subject access in the library catalog : an opinion (1984)
0.03
0.025653677 = product of:
0.17957573 = sum of:
0.17957573 = weight(_text_:interactions in 1878) [ClassicSimilarity], result of:
0.17957573 = score(doc=1878,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.7819445 = fieldWeight in 1878, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.09375 = fieldNorm(doc=1878)
0.14285715 = coord(1/7)
- Source
- Reference services and technical services: interactions in library practice. Ed. by G. Stevenson et al
-
Guedj, D.: Nicholas Bourbaki, collective mathematician : an interview with Clause Chevalley (1985)
0.02
0.023479301 = product of:
0.08217755 = sum of:
0.039972246 = weight(_text_:with in 6075) [ClassicSimilarity], result of:
0.039972246 = score(doc=6075,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.42599133 = fieldWeight in 6075, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.125 = fieldNorm(doc=6075)
0.042205308 = product of:
0.084410615 = sum of:
0.084410615 = weight(_text_:22 in 6075) [ClassicSimilarity], result of:
0.084410615 = score(doc=6075,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.61904186 = fieldWeight in 6075, 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=6075)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Source
- Mathematical intelligencer. 7(1985), S.18-22
-
Saracevic, T.: Indexing, searching, and relevance (1989)
0.02
0.01710245 = product of:
0.11971715 = sum of:
0.11971715 = weight(_text_:interactions in 3615) [ClassicSimilarity], result of:
0.11971715 = score(doc=3615,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.5212963 = fieldWeight in 3615, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.0625 = fieldNorm(doc=3615)
0.14285715 = coord(1/7)
- Footnote
- "As noted by many critics, the present design of online subject access, be it through library catalogs or online retrieval systems, does not accomodate human variability in searching (or indexing). This calls for radically different design principles and inplementations ir order to accomodate the observed patterns, interactions,and differences in human information behavior, of which the overlap findings are one of the important manifestations" (S.107)
-
Salton, G.: Thoughts about modern retrieval technologies (1988)
0.01
0.014964644 = product of:
0.1047525 = sum of:
0.1047525 = weight(_text_:interactions in 1522) [ClassicSimilarity], result of:
0.1047525 = score(doc=1522,freq=2.0), product of:
0.22965278 = queryWeight, product of:
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.038938753 = queryNorm
0.4561343 = fieldWeight in 1522, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.8977947 = idf(docFreq=329, maxDocs=44218)
0.0546875 = fieldNorm(doc=1522)
0.14285715 = coord(1/7)
- Abstract
- Paper presented at the 30th Annual Conference of the National Federation of Astracting and Information Services, Philadelphia, 28 Feb-2 Mar 88. In recent years, the amount and the variety of available machine-readable data, new technologies have been introduced, such as high density storage devices, and fancy graphic displays useful for information transformation and access. New approaches have also been considered for processing the stored data based on the construction of knowledge bases representing the contents and structure of the information, and the use of expert system techniques to control the user-system interactions. Provides a brief evaluation of the new information processing technologies, and of the software methods proposed for information manipulation.
-
Cramer, M.D.; Markland, M.J.: Newspaper indexing with Pro-Cite (1989)
0.01
0.014104944 = product of:
0.0493673 = sum of:
0.02826465 = weight(_text_:with in 2855) [ClassicSimilarity], result of:
0.02826465 = score(doc=2855,freq=4.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.30122137 = fieldWeight in 2855, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0625 = fieldNorm(doc=2855)
0.021102654 = product of:
0.042205308 = sum of:
0.042205308 = weight(_text_:22 in 2855) [ClassicSimilarity], result of:
0.042205308 = score(doc=2855,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.30952093 = fieldWeight in 2855, 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=2855)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- The university libraries at Virginia Polytechnic Institute and State University began an innovative indexing method in 1985 with the objectives of stronger and easier subject access to local newspapers and the creation of an index which could store information compactly and economically. Discusses the decision to use Pro-Cite software and describes the creation of 10 area data base files. Outlines 2 areas of difficulty: documentation and terminology.
- Date
- 30.11.1995 17:22:01
-
Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988)
0.01
0.014104944 = product of:
0.0493673 = sum of:
0.02826465 = weight(_text_:with in 4165) [ClassicSimilarity], result of:
0.02826465 = score(doc=4165,freq=4.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.30122137 = fieldWeight in 4165, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0625 = fieldNorm(doc=4165)
0.021102654 = product of:
0.042205308 = sum of:
0.042205308 = weight(_text_:22 in 4165) [ClassicSimilarity], result of:
0.042205308 = score(doc=4165,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.30952093 = fieldWeight in 4165, 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=4165)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- This paper reports on the successful introduction of a sophisticated online catalogue system at the library of the Scott Polar Research Institute, Cambridge, using the Muscat program package. The system provides to both end-users and library staff a choice between boolean searching on keywords and access using relevance feedback based on free text in English, mixed with UDC classification numbers. The system is implemented on an IBM 3084 computer. Significant benefits from the application of relevance feedback are reported with 10,000 records on file.
- Source
- Program. 22(1988), S.1-20
-
Mischo, W.H.; Lee, J.: End-user searching in bibliographic databases (1987)
0.01
0.014104944 = product of:
0.0493673 = sum of:
0.02826465 = weight(_text_:with in 336) [ClassicSimilarity], result of:
0.02826465 = score(doc=336,freq=4.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.30122137 = fieldWeight in 336, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0625 = fieldNorm(doc=336)
0.021102654 = product of:
0.042205308 = sum of:
0.042205308 = weight(_text_:22 in 336) [ClassicSimilarity], result of:
0.042205308 = score(doc=336,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.30952093 = fieldWeight in 336, 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=336)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- The growing interest in end user or direct patron access to on-line bibliographic databases is reviewed with references to online catalogues, databases, and CD-ROMs. The literature of end user searching is surveyed with notes on: user training, software search aids, end user services in libraries: characterisation of end user searches; the role of librarians; and CD-ROMs as end user media
- Source
- Annual review of information science and technology. 22(1987), S.227-263
-
Hori, I.: ¬The cognitive structure of classification work (1989)
0.01
0.012341825 = product of:
0.043196388 = sum of:
0.024731567 = weight(_text_:with in 3553) [ClassicSimilarity], result of:
0.024731567 = score(doc=3553,freq=4.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.2635687 = fieldWeight in 3553, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0546875 = fieldNorm(doc=3553)
0.018464822 = product of:
0.036929645 = sum of:
0.036929645 = weight(_text_:22 in 3553) [ClassicSimilarity], result of:
0.036929645 = score(doc=3553,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.2708308 = fieldWeight in 3553, 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=3553)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- The classification work of 26 librarians and 9 students was studied by a thinking aloud method. The structure of their work was analysed into 2 parts that corresond with the stages presented in the ISO standard 5963. Documents were analysed by different concepts of "aboutness". Identification of the principal concepts present in the subject has led into a hypothesis about 3 conceptual systems. Expressing the concepts in terms of classification systems was found to be difficult with UDC because of many unclear synonyms in different parts of the schedules.
- Date
- 25.12.1995 22:12:09
-
Palais, E.S.: Abstracting for reference librarians (1988)
0.01
0.011739651 = product of:
0.041088775 = sum of:
0.019986123 = weight(_text_:with in 2832) [ClassicSimilarity], result of:
0.019986123 = score(doc=2832,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.21299566 = fieldWeight in 2832, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0625 = fieldNorm(doc=2832)
0.021102654 = product of:
0.042205308 = sum of:
0.042205308 = weight(_text_:22 in 2832) [ClassicSimilarity], result of:
0.042205308 = score(doc=2832,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.30952093 = fieldWeight in 2832, 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=2832)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Reference librarians, who are thoroughly familiar with the purpose, scope and arrangement of abstract periodicals, are uniquely qualified for the task of writing abstracts. The procedures described here offer a relatively simple way for them to write acceptable abstracts from the outset. Although research is being conducted in the area of machine generated abstracts, there wll continue to be a role for human abstractors.
- Source
- Reference librarian. 1988, no.22, S.297-308
-
Studwell, W.E.; Hamilton, D.A.: Library of Congress Subject Heading period subdivisions for Eastern Europe excluding the Soviet Union : some proposed additions (1985)
0.01
0.011739651 = product of:
0.041088775 = sum of:
0.019986123 = weight(_text_:with in 365) [ClassicSimilarity], result of:
0.019986123 = score(doc=365,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.21299566 = fieldWeight in 365, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0625 = fieldNorm(doc=365)
0.021102654 = product of:
0.042205308 = sum of:
0.042205308 = weight(_text_:22 in 365) [ClassicSimilarity], result of:
0.042205308 = score(doc=365,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.30952093 = fieldWeight in 365, 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=365)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Eastern Europe is a complex area for which there are not adequate Library of Congress subject heading period subdivisions. This article offers additional period subdivisions, with justifications, for all the countries and some regions of Eastern Europe, excluding the Soviet Union. Covered are: Europe, Eastern; Czechoslovakia (and three regions); Germany (East); Hungary; Poland; Galicia; Balkan Peninsula; Albania; Bulgaria; Romania; and Yugoslavia (and six regions).
- Date
- 7. 1.2007 13:22:20
-
Eastman, C.M.: Overlaps in postings to thesaurus terms : a preliminary study (1988)
0.01
0.010272195 = product of:
0.03595268 = sum of:
0.017487857 = weight(_text_:with in 3555) [ClassicSimilarity], result of:
0.017487857 = score(doc=3555,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.1863712 = fieldWeight in 3555, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0546875 = fieldNorm(doc=3555)
0.018464822 = product of:
0.036929645 = sum of:
0.036929645 = weight(_text_:22 in 3555) [ClassicSimilarity], result of:
0.036929645 = score(doc=3555,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.2708308 = fieldWeight in 3555, 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=3555)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- The patterns of overlap between terms which are closely related in a thesaurus are considered. The relationships considered are parent/child, in which one term is a broader term of the other, and sibling in which to 2 terms share the same broader term. The patterns of overlap observed in the MeSH thesaurus with respect to selected MEDLINE postings are examined. The implications of the overlap patterns are discussed, in particular, the impact of the overlap patterns on the potential effectiveness of a proposed algorithm for handling negation is considered.
- Date
- 25.12.1995 22:52:34
-
Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983)
0.01
0.010272195 = product of:
0.03595268 = sum of:
0.017487857 = weight(_text_:with in 5001) [ClassicSimilarity], result of:
0.017487857 = score(doc=5001,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.1863712 = fieldWeight in 5001, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0546875 = fieldNorm(doc=5001)
0.018464822 = product of:
0.036929645 = sum of:
0.036929645 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
0.036929645 = score(doc=5001,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.2708308 = fieldWeight in 5001, 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=5001)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- A study was done to test the effectiveness of retrieval using title word searching. It was based on actual search profiles used in the Mechanized Information Center at Ohio State University, in order ro replicate as closely as possible actual searching conditions. Fewer than 50% of the relevant titles were retrieved by keywords in titles. The low rate of retrieval can be attributes to three sources: titles themselves, user and information specialist ignorance of the subject vocabulary in use, and to general language problems. Across fields it was found that the social sciences had the best retrieval rate, with science having the next best, and arts and humanities the lowest. Ways to enhance and supplement keyword in title searching on the computer and in printed indexes are discussed.
- Date
- 14. 3.1996 13:22:21
-
Walker, A.: Australia's pictorial collections on interactive videodisc (1989)
0.01
0.010272195 = product of:
0.03595268 = sum of:
0.017487857 = weight(_text_:with in 2477) [ClassicSimilarity], result of:
0.017487857 = score(doc=2477,freq=2.0), product of:
0.09383348 = queryWeight, product of:
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.038938753 = queryNorm
0.1863712 = fieldWeight in 2477, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.409771 = idf(docFreq=10797, maxDocs=44218)
0.0546875 = fieldNorm(doc=2477)
0.018464822 = product of:
0.036929645 = sum of:
0.036929645 = weight(_text_:22 in 2477) [ClassicSimilarity], result of:
0.036929645 = score(doc=2477,freq=2.0), product of:
0.13635688 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038938753 = queryNorm
0.2708308 = fieldWeight in 2477, 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=2477)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- The use of interactive videodiscs for preserving, presenting and retrieving pictorial collections in Australia was pioneered at the New South Wales Government Printing Office, Sydney. This project has now stored some 200.000 historical photographs on interactive videodisc, associated with sophisticated microcomputer data bases using the specially developed Just Image software. Videodisc systems to retrieve pictorial material are being used to preserve and present the pictorial collections of various Australian libraries and museums, and standards for the description and indexing of photographs are being developed.
- Date
- 3. 1.1999 11:22:04
-
Brookes, B.C.: ¬The foundations of information science : pt.2: quantitative aspects: classes of things and the challenge of human individuality (1980)
0.01
0.009795434 = product of:
0.068568036 = sum of:
0.068568036 = product of:
0.13713607 = sum of:
0.13713607 = weight(_text_:humans in 3254) [ClassicSimilarity], result of:
0.13713607 = score(doc=3254,freq=2.0), product of:
0.26276368 = queryWeight, product of:
6.7481275 = idf(docFreq=140, maxDocs=44218)
0.038938753 = queryNorm
0.52189887 = fieldWeight in 3254, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.7481275 = idf(docFreq=140, maxDocs=44218)
0.0546875 = fieldNorm(doc=3254)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Abstract
- An outline history describes how man has extended the process of objectivization from everyday practicalities to modern science. Modern techniques of quantification awaited the adoption of the Hindu-Arab numerals and the creation of a calculus for their use. It is argued that the use of these numerals has provided analytical instruments which, though ideally adapted to the exploration and exploitation of the physical world, fail to capture important aspects of the individuality of response within groups which humans display in their social behaviour. New quantitative techniques more sensitive to these aspects are therefore needed in the social sciences. A numerical example is used to illustrate how frequency-rank statistics make fuller use of empirical information in the social sciences than conventional statistics which, by using classes, discards information related to individuality
