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Building information infrastructure : issues in the development of the National Research and Education Network (1992)
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- 1. 3.2008 12:42:22
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- 0-390-03083-X
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Dick, E.M.: Current information sources in mathematics : an annotated guide to books and periodicals, 1960-1972 (1973)
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Schaefer, B.K.: Using the mathematical literature : a practical guide (1979)
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Von Eckhardt, B.: What is cognitive science? (1993)
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Sardar, Z.; Ravetz, J.R.: Cyberfutures : cultures and politics on the information superhighway (1996)
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- Footnote
- Rez. in: College and research libraries 58(1997) no.6, S.582-584 (B. Pfaffenberger)
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- 0-8147-8059-8 * 0-8147-8058-X
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Hirshon, A.; Winters, B.: Outsourcing library technical services : a how-to-do-it manual for librarians (1996)
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- 1-55570-221-X
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CD-ROMs in print (1995)
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- Footnote
- Rez. in: Audiovisual librarian 22(1996) no.2, S.130-131 ( R. Williams)
- Isbn
- 0-88736-991-X
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Wyman, P.: Indexing specialities : medicine (1999)
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- Rez. in: Indexer 22(2000) no.1, S.51 (J. Halliday)
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- 1-57387-082-X
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Bryson, J.: Managing information services : an integrated approach (1997)
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- Date
- 31.12.1998 22:01:11
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- 0-566-07690-X
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Jennerich, E.Z.; Jennerich, E.J.: ¬The reference interview as a creative art (1997)
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- 31.12.1998 22:14:52
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- 1-56308-466-X
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Between data science and applied data analysis : Proceedings of the 26th Annual Conference of the Gesellschaft für Klassifikation e.V., University of Mannheim, July 22-24, 2002 (2003)
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- 3-540-40354-X
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Erlandsson, A.: Electronic records management : a literature review (1997)
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- Rez. in: Archives and manuscripts 25(1997) no.2, S.354-358 (B. Reed)
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- 0-9682361-2-X
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- b
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Kahin, B.; Keller, J.: Public access to the Internet (1995)
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- 0-262-61118-X
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Booth, P.F.; Piggott, M.: Choice and form of entries (1995)
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- 1-871577-08-X
- Series
- Training in indexing, unit B
-
Walford's guide to reference material : Vol.1: Science and technology (1999)
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Nicholas, D.: Assessing information needs : tools and techniques (1996)
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- Date
- 26. 2.2008 19:22:51
- Isbn
- 0-85142-385-X
-
Ford, N.: Introduction to information behaviour (2015)
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- Date
- 22. 1.2017 16:45:48
- Pages
- X, 252 S
-
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)
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- Footnote
- Rez. in: College and research libraries 22(1961) no.6, S.483-484 (A.R. Lindsay)
-
Langridge, D.W.: Classification: its kinds, systems, elements and application (1992)
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- Date
- 26. 7.2002 14:01:22
- Footnote
- Rez. in: Journal of documentation 49(1993) no.1, S.68-70. (A. Maltby); Journal of librarianship and information science 1993, S.108-109 (A.G. Curwen); Herald of library science 33(1994) nos.1/2, S.85 (P.N. Kaula); Knowledge organization 22(1995) no.1, S.45 (M.P. Satija)
- Pages
- X,84 S
-
Call, A.; Gottlob, G.; Pieris, A.: ¬The return of the entity-relationship model : ontological query answering (2012)
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- Abstract
- The Entity-Relationship (ER) model is a fundamental formalism for conceptual modeling in database design; it was introduced by Chen in his milestone paper, and it is now widely used, being flexible and easily understood by practitioners. With the rise of the Semantic Web, conceptual modeling formalisms have gained importance again as ontology formalisms, in the Semantic Web parlance. Ontologies and conceptual models are aimed at representing, rather than the structure of data, the domain of interest, that is, the fragment of the real world that is being represented by the data and the schema. A prominent formalism for modeling ontologies are Description Logics (DLs), which are decidable fragments of first-order logic, particularly suitable for ontological modeling and querying. In particular, DL ontologies are sets of assertions describing sets of objects and (usually binary) relations among such sets, exactly in the same fashion as the ER model. Recently, research on DLs has been focusing on the problem of answering queries under ontologies, that is, given a query q, an instance B, and an ontology X, answering q under B and amounts to compute the answers that are logically entailed from B by using the assertions of X. In this context, where data size is usually large, a central issue the data complexity of query answering, i.e., the computational complexity with respect to the data set B only, while the ontology X and the query q are fixed.
