-
Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
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- 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.
-
Mandel, C.A.; Wolven, R.: Intellectual access to digital documents : joining proven principles with new technologies (1996)
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- Abstract
- This paper considers the relevance of Charles Ami Cutter's principles of bibliographic access to the uiniverse of Internet accessible digital objects and explores new methods for applying these principles in the context of new information technologies. The paper examines the value for retrieval of collecting authors' names, identifying authors' roles, collocating works and versions, and providing subject access through classification and controlled vocabularies for digital resources available through the World Wide Web. THe authors identify emerging techniques and technologies that can be used in lieu of or as a supplement to traditional cataloging to achieve these functions in organizing access to Internet resources
- Source
- Cataloging and classification quarterly. 22(1996) nos.3/4, S.25-42
-
Mandel, C.A.; Wolven, R.: Intellectual access to digital documents : joining proven principles with new technologies (1996)
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- Abstract
- Considers the relevance of Cutter's principles of bibliographic access to Internet accessible digital materials and explores new methods for applying these principles in the context of new information technologies. Examines the value for retrieval of collecting authors' names, identifying authors' roles, collocating works and versions, and providing subject access through classification and controlled vocabularies for digital resources available through the WWW. Identifies emerging technologies and techniques that may be used in lieu of or as a supplement to traditional cataloguing to achieve these functions in organizing access to Internet resources
- Series
- Cataloging and classification quarterly; vol.22, nos.3/4
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
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- Abstract
- Ahlgren, Jarneving, and. Rousseau review accepted procedures for author co-citation analysis first pointing out that since in the raw data matrix the row and column values are identical i,e, the co-citation count of two authors, there is no clear choice for diagonal values. They suggest the number of times an author has been co-cited with himself excluding self citation rather than the common treatment as zeros or as missing values. When the matrix is converted to a similarity matrix the normal procedure is to create a matrix of Pearson's r coefficients between data vectors. Ranking by r and by co-citation frequency and by intuition can easily yield three different orders. It would seem necessary that the adding of zeros to the matrix will not affect the value or the relative order of similarity measures but it is shown that this is not the case with Pearson's r. Using 913 bibliographic descriptions form the Web of Science of articles form JASIS and Scientometrics, authors names were extracted, edited and 12 information retrieval authors and 12 bibliometric authors each from the top 100 most cited were selected. Co-citation and r value (diagonal elements treated as missing) matrices were constructed, and then reconstructed in expanded form. Adding zeros can both change the r value and the ordering of the authors based upon that value. A chi-squared distance measure would not violate these requirements, nor would the cosine coefficient. It is also argued that co-citation data is ordinal data since there is no assurance of an absolute zero number of co-citations, and thus Pearson is not appropriate. The number of ties in co-citation data make the use of the Spearman rank order coefficient problematic.
- Date
- 9. 7.2006 10:22:35
-
Crowe, M.; Beeby, R.; Gammack, J.: Constructing systems and information : a process view (1996)
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- Abstract
- Within dynamic organizations, information systems often fail to adapt to changing requirements and structures. The book presents a different view of IS provision, based on end-user information systems construction, as a means of avoiding many of the recognized problems. Adopting a philosophy of constructivism, emphasizing psychological and social factors in information construction, the authors examine different types of systems across natural and social sciences
- Date
- 25.12.2001 13:22:30
-
Hafter, R.: ¬The performance of card catalogs : a review of research (1979)
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- Date
- 3.10.2000 20:48:22
-
Evans, R.; Gazdar, G.: DATR: a language for lexical knowledge representation (1996)
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- Source
- Computational linguistics. 22(1996) no.2, S.167-216
-
Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988)
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- Source
- Program. 22(1988), S.133-142
-
Information brokers and reference services (1989)
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- Editor
- Katz, B. u. R. Kinder
- Series
- Reference librarian; no.22
-
Tennant, R.: ¬The print perplex : building the future catalog (1998)
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- Source
- Library journal. 123(1998) no.19, S.22-24
-
Carter, J.A.: PASSPORT/PRISM: authors and titles and MARC : oh my! (1993)
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- Source
- OCLC systems and services. 9(1993) no.3, S.20-22
-
Shen, R.; Wang, J.; Fox, E.A.: ¬A Lightweight Protocol between Digital Libraries and Visualization Systems (2002)
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- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:15:14
-
Carey, K.; Stringer, R.: ¬The power of nine : a preliminary investigation into navigation strategies for the new library with special reference to disabled people (2000)
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- Pages
- 22 S
- Type
- r
-
Wheelbarger, J.J.; Clouse, R.W.: ¬A comparision of a manual library reclassification project with a computer automated library reclassification project (1975)
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- Pages
- 22 S
- Type
- r
-
Matthews, J.R.; Parker, M.R.: Local Area Networks and Wide Area Networks for libraries (1995)
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- Date
- 30.11.1995 20:53:22
- Type
- r
-
Marcella, R.; Newton, R.: ¬A new manual of classification (1994)
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- Footnote
- Rez. in: Knowledge organization 22(1995) no.3/4, S.178-179 (M.P. Satija); Journal of documentation 51(1995) no.4, S.437-439 (R. Brunt)
-
Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006)
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- Abstract
- With the rapid proliferation of Internet technologies and applications, misuse of online messages for inappropriate or illegal purposes has become a major concern for society. The anonymous nature of online-message distribution makes identity tracing a critical problem. We developed a framework for authorship identification of online messages to address the identity-tracing problem. In this framework, four types of writing-style features (lexical, syntactic, structural, and content-specific features) are extracted and inductive learning algorithms are used to build feature-based classification models to identify authorship of online messages. To examine this framework, we conducted experiments on English and Chinese online-newsgroup messages. We compared the discriminating power of the four types of features and of three classification techniques: decision trees, backpropagation neural networks, and support vector machines. The experimental results showed that the proposed approach was able to identify authors of online messages with satisfactory accuracy of 70 to 95%. All four types of message features contributed to discriminating authors of online messages. Support vector machines outperformed the other two classification techniques in our experiments. The high performance we achieved for both the English and Chinese datasets showed the potential of this approach in a multiple-language context.
- Date
- 22. 7.2006 16:14:37
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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- 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
-
Chaves Guimarães, J.A.; Sales, R. de; Martínez-Ávila, D.; Alencar, M.F.: ¬The conceptual dimension of knowledge organization in the ISKO proceedings domain : a Bardinian content analysis (2014)
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- Abstract
- This paper aims to study the conceptual dimension of Knowledge Organization (KO) in the ISKO proceedings (1990-2012) domain. After analyzing a corpus of 71 papers that presented the term "knowledge organization" in their titles, using the methodology of Bardin's content analysis, it was possible to obtain a set of 11 definitions of KO which were studied using the following categories: nature, object, tools, processes, and perspectives/approaches. These categories act as a basis to identify the communities of authors that interact in the domain under different conceptual perspectives. The results show that KO has been mainly understood as an area or field of knowledge whose objects are recorded knowledge and conceptual structures, and whose main processes are classification and indexing, as well as information retrieval. The nature of KO is mostly linked to the construction of specialized discourses and the methodological dimension of such area is related to the systematization of recorded scientific knowledge.
- Source
- Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
-
MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000)
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- Date
- 22. 6.2002 19:40:22
