-
Liu, V.: Cooperative Online Resource Catalog (CORC) : a community college's experience (2000)
0.14
0.14321917 = product of:
0.28643835 = sum of:
0.28643835 = sum of:
0.18885049 = weight(_text_:v in 3819) [ClassicSimilarity], result of:
0.18885049 = score(doc=3819,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.7535104 = fieldWeight in 3819, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.109375 = fieldNorm(doc=3819)
0.097587846 = weight(_text_:22 in 3819) [ClassicSimilarity], result of:
0.097587846 = score(doc=3819,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.5416616 = fieldWeight in 3819, 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=3819)
0.5 = coord(1/2)
- Source
- Community and junior college libraries. 9(2000) no.3, S.5-22
-
Wessels, V.: ¬The MIRACLE and the blind musician (2000)
0.14
0.14321917 = product of:
0.28643835 = sum of:
0.28643835 = sum of:
0.18885049 = weight(_text_:v in 7158) [ClassicSimilarity], result of:
0.18885049 = score(doc=7158,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.7535104 = fieldWeight in 7158, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.109375 = fieldNorm(doc=7158)
0.097587846 = weight(_text_:22 in 7158) [ClassicSimilarity], result of:
0.097587846 = score(doc=7158,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.5416616 = fieldWeight in 7158, 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=7158)
0.5 = coord(1/2)
- Source
- Extensions and corrections to the UDC. 22(2000), S.40-42
-
Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
0.13
0.1308813 = product of:
0.2617626 = sum of:
0.2617626 = product of:
0.5235252 = sum of:
0.20428462 = weight(_text_:3a in 692) [ClassicSimilarity], result of:
0.20428462 = score(doc=692,freq=2.0), product of:
0.43618092 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.051448494 = 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)
0.31924057 = weight(_text_:2c in 692) [ClassicSimilarity], result of:
0.31924057 = score(doc=692,freq=2.0), product of:
0.5452653 = queryWeight, product of:
10.598275 = idf(docFreq=2, maxDocs=44218)
0.051448494 = 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.
-
Broughton, V.: Automatic metadata generation : Digital resource description without human intervention (2007)
0.12
0.12275928 = product of:
0.24551857 = sum of:
0.24551857 = sum of:
0.16187184 = weight(_text_:v in 6048) [ClassicSimilarity], result of:
0.16187184 = score(doc=6048,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.64586604 = fieldWeight in 6048, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.09375 = fieldNorm(doc=6048)
0.08364672 = weight(_text_:22 in 6048) [ClassicSimilarity], result of:
0.08364672 = score(doc=6048,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.46428138 = fieldWeight in 6048, 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=6048)
0.5 = coord(1/2)
- Date
- 22. 9.2007 15:41:14
-
Wesch, M.: Web 2.0 ... The Machine is Us/ing Us (2006)
0.10
0.104189366 = product of:
0.20837873 = sum of:
0.20837873 = sum of:
0.15261425 = weight(_text_:v in 3478) [ClassicSimilarity], result of:
0.15261425 = score(doc=3478,freq=4.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.6089284 = fieldWeight in 3478, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=3478)
0.055764485 = weight(_text_:22 in 3478) [ClassicSimilarity], result of:
0.055764485 = score(doc=3478,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 3478, 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=3478)
0.5 = coord(1/2)
- Content
- Final version now available! http://youtube.com/watch?v=NLlGopyXT_g http://mediatedcultures.net A higher quality version is available for download here: http://www.mediafire.com/?6duzg3zioyd. Please note that this is the second draft and the final version will not be available until late February after I review all comments and revise the video. Please return for a new download link at that time.
- Date
- 5. 1.2008 19:22:48
- Source
- http://www.youtube.com/watch?v=6gmP4nk0EOE
-
Herrero-Solana, V.; Moya Anegón, F. de: Graphical Table of Contents (GTOC) for library collections : the application of UDC codes for the subject maps (2003)
0.10
0.098546445 = sum of:
0.016706921 = product of:
0.066827685 = sum of:
0.066827685 = weight(_text_:authors in 2758) [ClassicSimilarity], result of:
0.066827685 = score(doc=2758,freq=4.0), product of:
0.23454411 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.051448494 = queryNorm
0.28492588 = fieldWeight in 2758, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.03125 = fieldNorm(doc=2758)
0.25 = coord(1/4)
0.081839524 = sum of:
0.05395728 = weight(_text_:v in 2758) [ClassicSimilarity], result of:
0.05395728 = score(doc=2758,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.21528868 = fieldWeight in 2758, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.03125 = fieldNorm(doc=2758)
0.027882243 = weight(_text_:22 in 2758) [ClassicSimilarity], result of:
0.027882243 = score(doc=2758,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.15476047 = fieldWeight in 2758, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=2758)
- Abstract
- The representation of information contents by graphical maps is an extended ongoing research topic. In this paper we introduce the application of UDC codes for the subject maps development. We use the following graphic representation methodologies: 1) Multidimensional scaling (MDS), 2) Cluster analysis, 3) Neural networks (Self Organizing Map - SOM). Finally, we conclude about the application viability of every kind of map. 1. Introduction Advanced techniques for Information Retrieval (IR) currently make up one of the most active areas for research in the field of library and information science. New models representing document content are replacing the classic systems in which the search terms supplied by the user were compared against the indexing terms existing in the inverted files of a database. One of the topics most often studied in the last years is bibliographic browsing, a good complement to querying strategies. Since the 80's, many authors have treated this topic. For example, Ellis establishes that browsing is based an three different types of tasks: identification, familiarization and differentiation (Ellis, 1989). On the other hand, Cove indicates three different browsing types: searching browsing, general purpose browsing and serendipity browsing (Cove, 1988). Marcia Bates presents six different types (Bates, 1989), although the classification of Bawden is the one that really interests us: 1) similarity comparison, 2) structure driven, 3) global vision (Bawden, 1993). The global vision browsing implies the use of graphic representations, which we will call map displays, that allow the user to get a global idea of the nature and structure of the information in the database. In the 90's, several authors worked an this research line, developing different types of maps. One of the most active was Xia Lin what introduced the concept of Graphical Table of Contents (GTOC), comparing the maps to true table of contents based an graphic representations (Lin 1996). Lin applies the algorithm SOM to his own personal bibliography, analyzed in function of the words of the title and abstract fields, and represented in a two-dimensional map (Lin 1997). Later on, Lin applied this type of maps to create websites GTOCs, through a Java application.
- Date
- 12. 9.2004 14:31:22
-
Gödert, W.; Hubrich, J.; Boteram, F.: Thematische Recherche und Interoperabilität : Wege zur Optimierung des Zugriffs auf heterogen erschlossene Dokumente (2009)
0.10
0.097236544 = sum of:
0.07981014 = product of:
0.31924057 = sum of:
0.31924057 = weight(_text_:2c in 193) [ClassicSimilarity], result of:
0.31924057 = score(doc=193,freq=2.0), product of:
0.5452653 = queryWeight, product of:
10.598275 = idf(docFreq=2, maxDocs=44218)
0.051448494 = queryNorm
0.5854775 = fieldWeight in 193, 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=193)
0.25 = coord(1/4)
0.017426401 = product of:
0.034852803 = sum of:
0.034852803 = weight(_text_:22 in 193) [ClassicSimilarity], result of:
0.034852803 = score(doc=193,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.19345059 = fieldWeight in 193, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=193)
0.5 = coord(1/2)
- Source
- https://opus4.kobv.de/opus4-bib-info/frontdoor/index/index/searchtype/authorsearch/author/%22Hubrich%2C+Jessica%22/docId/703/start/0/rows/20
-
Information Macht Bildung. : Zweiter Gemeinsamer Kongress der Bundesvereinigung Deutscher Bibliotheksverbände e. V. (BDB) und der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e. V. (DGI), Leipzig, 23. bis 26. März 2004, zugleich 93. Deutscher Bibliothekartag (2004)
0.09
0.0911657 = product of:
0.1823314 = sum of:
0.1823314 = sum of:
0.13353747 = weight(_text_:v in 3018) [ClassicSimilarity], result of:
0.13353747 = score(doc=3018,freq=4.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.53281236 = fieldWeight in 3018, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0546875 = fieldNorm(doc=3018)
0.048793923 = weight(_text_:22 in 3018) [ClassicSimilarity], result of:
0.048793923 = score(doc=3018,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.2708308 = fieldWeight in 3018, 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=3018)
0.5 = coord(1/2)
- Date
- 22. 2.2008 14:21:53
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
0.08
0.08219707 = sum of:
0.061285388 = product of:
0.24514155 = sum of:
0.24514155 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
0.24514155 = score(doc=562,freq=2.0), product of:
0.43618092 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.051448494 = 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)
0.02091168 = product of:
0.04182336 = sum of:
0.04182336 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
0.04182336 = score(doc=562,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = 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
-
Saving the time of the library user through subject access innovation : Papers in honor of Pauline Atherton Cochrane (2000)
0.08
0.08194647 = sum of:
0.010336881 = product of:
0.041347522 = sum of:
0.041347522 = weight(_text_:authors in 1429) [ClassicSimilarity], result of:
0.041347522 = score(doc=1429,freq=2.0), product of:
0.23454411 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.051448494 = queryNorm
0.17628889 = fieldWeight in 1429, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.02734375 = fieldNorm(doc=1429)
0.25 = coord(1/4)
0.07160959 = sum of:
0.047212623 = weight(_text_:v in 1429) [ClassicSimilarity], result of:
0.047212623 = score(doc=1429,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.1883776 = fieldWeight in 1429, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.02734375 = fieldNorm(doc=1429)
0.024396962 = weight(_text_:22 in 1429) [ClassicSimilarity], result of:
0.024396962 = score(doc=1429,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.1354154 = fieldWeight in 1429, 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=1429)
- Abstract
- Pauline Atherton Cochrane has been contributing to library and information science for fifty years. Think of it-from mid-century to the millennium, from ENIAC (practically) to Internet 11 (almost here). What a time to be in our field! Her work an indexing, subject access, and the user-oriented approach had immediate and sustained impact, and she continues to be one of our most heavily cited authors (see, JASIS, 49[4], 327-55) and most beloved personages. This introduction includes a few words about my own experiences with Pauline as well as a short summary of the contributions that make up this tribute. A review of the curriculum vita provided at the end of this publication Shows that Pauline Cochrane has been involved in a wide variety of work. As Marcia Bates points out in her note (See below), Pauline was (and is) a role model, but I will always think of her as simply the best teacher 1 ever had. In 1997, I entered the University of Illinois Graduate School of Library and Information Science as a returning mid-life student; my previous doctorate had not led to a full-time job and I was re-tooling. I was not sure what 1 would find in library school, and the introductory course attended by more than 100 students from widely varied backgrounds had not yet convinced me I was in the right place. Then, one day, Pauline gave a guest lecture an the digital library in my introductory class. I still remember it. She put up some notes-a few words clustered an the blackboard with some circles and directional arrows-and then she gave a free, seemingly extemporaneous, but riveting narrative. She set out a vision for ideal information exchange in the digital environment but noted a host of practical concerns, issues, and potential problems that required (demanded!) continued human intervention. The lecture brought that class and the entire semester's work into focus; it created tremendous excitement for the future of librarianship. 1 saw that librarians and libraries would play an active role. I was in the right place.
- Content
- Enthält Beiträge von: FUGMANN, R.: Obstacles to progress in mechanized subject access and the necessity of a paradigm change; TELL, B.: On MARC and natural text searching: a review of Pauline Cochrane's inspirational thinking grafted onto a Swedish spy on library matters; KING, D.W.: Blazing new trails: in celebration of an audacious career; FIDEL, R.: The user-centered approach; SMITH, L.: Subject access in interdisciplinary research; DRABENSTOTT, K.M.: Web search strategies; LAM, V.-T.: Enhancing subject access to monographs in Online Public Access Catalogs: table of contents added to bibliographic records; JOHNSON, E.H.: Objects for distributed heterogeneous information retrieval
- Date
- 22. 9.1997 19:16:05
-
Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004)
0.08
0.08194647 = sum of:
0.010336881 = product of:
0.041347522 = sum of:
0.041347522 = weight(_text_:authors in 2509) [ClassicSimilarity], result of:
0.041347522 = score(doc=2509,freq=2.0), product of:
0.23454411 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.051448494 = queryNorm
0.17628889 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.25 = coord(1/4)
0.07160959 = sum of:
0.047212623 = weight(_text_:v in 2509) [ClassicSimilarity], result of:
0.047212623 = score(doc=2509,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.1883776 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.024396962 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
0.024396962 = score(doc=2509,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = 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)
- Abstract
- A relevancy-ranking algorithm for a natural language interface to Boolean online public access catalogs (OPACs) was formulated and compared with that currently used in a knowledge-based search interface called the E-Referencer, being developed by the authors. The algorithm makes use of seven weIl-known ranking criteria: breadth of match, section weighting, proximity of query words, variant word forms (stemming), document frequency, term frequency and document length. The algorithm converts a natural language query into a series of increasingly broader Boolean search statements. In a small experiment with ten subjects in which the algorithm was simulated by hand, the algorithm obtained good results with a mean overall precision of 0.42 and mean average precision of 0.62, representing a 27 percent improvement in precision and 41 percent improvement in average precision compared to the E-Referencer. The usefulness of each step in the algorithm was analyzed and suggestions are made for improving the algorithm.
- Content
- "Most Web search engines accept natural language queries, perform some kind of fuzzy matching and produce ranked output, displaying first the documents that are most likely to be relevant. On the other hand, most library online public access catalogs (OPACs) an the Web are still Boolean retrieval systems that perform exact matching, and require users to express their search requests precisely in a Boolean search language and to refine their search statements to improve the search results. It is well-documented that users have difficulty searching Boolean OPACs effectively (e.g. Borgman, 1996; Ensor, 1992; Wallace, 1993). One approach to making OPACs easier to use is to develop a natural language search interface that acts as a middleware between the user's Web browser and the OPAC system. The search interface can accept a natural language query from the user and reformulate it as a series of Boolean search statements that are then submitted to the OPAC. The records retrieved by the OPAC are ranked by the search interface before forwarding them to the user's Web browser. The user, then, does not need to interact directly with the Boolean OPAC but with the natural language search interface or search intermediary. The search interface interacts with the OPAC system an the user's behalf. The advantage of this approach is that no modification to the OPAC or library system is required. Furthermore, the search interface can access multiple OPACs, acting as a meta search engine, and integrate search results from various OPACs before sending them to the user. The search interface needs to incorporate a method for converting the user's natural language query into a series of Boolean search statements, and for ranking the OPAC records retrieved. The purpose of this study was to develop a relevancyranking algorithm for a search interface to Boolean OPAC systems. This is part of an on-going effort to develop a knowledge-based search interface to OPACs called the E-Referencer (Khoo et al., 1998, 1999; Poo et al., 2000). E-Referencer v. 2 that has been implemented applies a repertoire of initial search strategies and reformulation strategies to retrieve records from OPACs using the Z39.50 protocol, and also assists users in mapping query keywords to the Library of Congress subject headings."
- Source
- Electronic library. 22(2004) no.2, S.112-120
-
Faro, S.; Francesconi, E.; Marinai, E.; Sandrucci, V.: Report on execution and results of the interoperability tests (2008)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 7411) [ClassicSimilarity], result of:
0.10791456 = score(doc=7411,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 7411, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=7411)
0.055764485 = weight(_text_:22 in 7411) [ClassicSimilarity], result of:
0.055764485 = score(doc=7411,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 7411, 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=7411)
0.5 = coord(1/2)
- Date
- 7.11.2008 10:40:22
-
Roto, V.: Search on mobile phones. (2006)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 5304) [ClassicSimilarity], result of:
0.10791456 = score(doc=5304,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 5304, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=5304)
0.055764485 = weight(_text_:22 in 5304) [ClassicSimilarity], result of:
0.055764485 = score(doc=5304,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 5304, 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=5304)
0.5 = coord(1/2)
- Date
- 22. 7.2006 18:35:39
-
Rostaing, H.; Barts, N.; Léveillé, V.: Bibliometrics: representation instrument of the multidisciplinary positioning of a scientific area : Implementation for an Advisory Scientific Committee (2007)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 1144) [ClassicSimilarity], result of:
0.10791456 = score(doc=1144,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 1144, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=1144)
0.055764485 = weight(_text_:22 in 1144) [ClassicSimilarity], result of:
0.055764485 = score(doc=1144,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 1144, 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=1144)
0.5 = coord(1/2)
- Date
- 30.12.2007 11:22:39
-
Trkulja, V.: ¬Die Digitale Kluft : eine Analyse der Informationsinfrastruktur in Bosnien-Herzegowina (2008)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 1600) [ClassicSimilarity], result of:
0.10791456 = score(doc=1600,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 1600, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=1600)
0.055764485 = weight(_text_:22 in 1600) [ClassicSimilarity], result of:
0.055764485 = score(doc=1600,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 1600, 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=1600)
0.5 = coord(1/2)
- Date
- 5. 3.2008 19:22:56
-
Faro, S.; Francesconi, E.; Sandrucci, V.: Thesauri KOS analysis and selected thesaurus mapping methodology on the project case-study (2007)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 2227) [ClassicSimilarity], result of:
0.10791456 = score(doc=2227,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 2227, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=2227)
0.055764485 = weight(_text_:22 in 2227) [ClassicSimilarity], result of:
0.055764485 = score(doc=2227,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 2227, 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=2227)
0.5 = coord(1/2)
- Date
- 7.11.2008 10:40:22
-
Suche 3.0 (2009)
0.08
0.081839524 = product of:
0.16367905 = sum of:
0.16367905 = sum of:
0.10791456 = weight(_text_:v in 3198) [ClassicSimilarity], result of:
0.10791456 = score(doc=3198,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.43057737 = fieldWeight in 3198, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0625 = fieldNorm(doc=3198)
0.055764485 = weight(_text_:22 in 3198) [ClassicSimilarity], result of:
0.055764485 = score(doc=3198,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.30952093 = fieldWeight in 3198, 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=3198)
0.5 = coord(1/2)
- Date
- 3. 5.1997 8:44:22
- Footnote
- Weitere Artikel auf S.2-3: Berberich, C.: Wie das Netz zwitschert - Beuth, P.: Kurz und fündig - Beuth, P. u. V. Funk: Ein Artikel, der nie fertig wird
-
Pulgarin, A.; Gil-Leiva, I.: Bibliometric analysis of the automatic indexing literature : 1956-2000 (2004)
0.08
0.07644974 = sum of:
0.029237112 = product of:
0.11694845 = sum of:
0.11694845 = weight(_text_:authors in 2566) [ClassicSimilarity], result of:
0.11694845 = score(doc=2566,freq=4.0), product of:
0.23454411 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.051448494 = queryNorm
0.49862027 = fieldWeight in 2566, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.0546875 = fieldNorm(doc=2566)
0.25 = coord(1/4)
0.047212623 = product of:
0.094425246 = sum of:
0.094425246 = weight(_text_:v in 2566) [ClassicSimilarity], result of:
0.094425246 = score(doc=2566,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.3767552 = fieldWeight in 2566, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0546875 = fieldNorm(doc=2566)
0.5 = coord(1/2)
- Abstract
- We present a bibliometric study of a corpus of 839 bibliographic references about automatic indexing, covering the period 1956-2000. We analyse the distribution of authors and works, the obsolescence and its dispersion, and the distribution of the literature by topic, year, and source type. We conclude that: (i) there has been a constant interest on the part of researchers; (ii) the most studied topics were the techniques and methods employed and the general aspects of automatic indexing; (iii) the productivity of the authors does fit a Lotka distribution (Dmax=0.02 and critical value=0.054); (iv) the annual aging factor is 95%; and (v) the dispersion of the literature is low.
-
Torra, V.; Lanau, S.; Miyamoto, S.: Image clustering for the exploration of video sequences (2006)
0.07
0.07160959 = product of:
0.14321917 = sum of:
0.14321917 = sum of:
0.094425246 = weight(_text_:v in 5284) [ClassicSimilarity], result of:
0.094425246 = score(doc=5284,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.3767552 = fieldWeight in 5284, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0546875 = fieldNorm(doc=5284)
0.048793923 = weight(_text_:22 in 5284) [ClassicSimilarity], result of:
0.048793923 = score(doc=5284,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.2708308 = fieldWeight in 5284, 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=5284)
0.5 = coord(1/2)
- Date
- 22. 7.2006 17:15:51
-
Wesch, M.: Information R/evolution (2006)
0.07
0.07160959 = product of:
0.14321917 = sum of:
0.14321917 = sum of:
0.094425246 = weight(_text_:v in 1267) [ClassicSimilarity], result of:
0.094425246 = score(doc=1267,freq=2.0), product of:
0.25062758 = queryWeight, product of:
4.871427 = idf(docFreq=920, maxDocs=44218)
0.051448494 = queryNorm
0.3767552 = fieldWeight in 1267, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.871427 = idf(docFreq=920, maxDocs=44218)
0.0546875 = fieldNorm(doc=1267)
0.048793923 = weight(_text_:22 in 1267) [ClassicSimilarity], result of:
0.048793923 = score(doc=1267,freq=2.0), product of:
0.18016386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051448494 = queryNorm
0.2708308 = fieldWeight in 1267, 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=1267)
0.5 = coord(1/2)
- Date
- 5. 1.2008 19:22:48
- Source
- http://www.youtube.com/watch?v=-4CV05HyAbM
