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Svenonius, E.: Use of classification in online retrieval (1983)
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Liu, S.; Svenonius, E.: DORS: DDC online retrieval system (1991)
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- Abstract
- A model system, the Dewey Online Retrieval System (DORS), was implemented as an interface to an online catalog for the purpose of experimenting with classification-based search strategies and generally seeking further understanding of the role of traditional classifications in automated information retrieval. Specifications for a classification retrieval interface were enumerated and rationalized and the system was developed in accordance with them. The feature that particularly distinguishes the system and enables it to meet its stated specifications is an automatically generated chain index
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.: ¬An ideal classification for an on-line catalog (1989)
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.: Design of controlled vocabularies in the context of emerging technologies (1988)
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- Theme
- Verbale Doksprachen im Online-Retrieval
Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.; Liu, S.; Subrahmanyam, B.: Automation of chain indexing (1992)
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- Abstract
- The last several years have seen the evolution of prototype systems exploiting the use of the Dewey Decimal Classification (DDC) as an interface to online catalogs. One such system, calles DORS (Dewy Online Retrieval System) was developed at the University of California, Los Angeles by the authors. The feature distinguishing this system is an automatically generated chain index, in particular the algorithms that were created for its automatic generation and the problems that were encountered. The problems were of three kinds: those that were overcome, but were not for lack of time and resources and those that we believe cannot be overcome. The paper concludes with suggestions for future resaerch and possible formatting changes to the DDC feature headings that would facilitate chain-index generation
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.: Precoordination or not? (1995)
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- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: Präkoordination - ja oder nein? (1994)
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- Abstract
- Die Diskussion um Vor- und Nachteile von Präkoordination oder Postkoordination wird unter den in der verbalen Sacherschließung Engagierten in Deutschland seit Jahren geführt. Mit zunehmender Verbreitung der RSWK gewinnen die Überlegungen, die sich angesichts der Ausbreitung des OPAC für das 'Zerschlagen' der Schlagwortketten aussprechen, an Bedeutung. In diesem Zusammenhang trägt eine Berücksichtigung der internationalen Debatte um Prä- und Postkoordination zur Erweiterung des nationalen Horizontes bei. Der Beitrag ist eine leicht gekürzte Übersetzung eines Referates, das die Autorin beim IFLA Satellite Meeting zum Thema 'Subject indexing in the 90's - principles and practices' im August 1993 in Lissabon gehalten hat
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: LCSH: semantics, syntax and specifity (2000)
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- Abstract
- This paper looks at changes affecting LCSH over its 100-year history. Adopting a linguistic conceptualization, it frames these changes as relating to the semantics, syntax and pragmatics of the LCSH language. While its category semantics has remained stable over time, the LCSH relational semantics underwent a significant upheaval when a thesaural structure was imposed upon its traditional See and See also structure. Over time the LCSH syntax has become increasingly complex as it has moved from being largely enumerative to in large part synthetic. Until fairly recently the LCSH pragmatics consisted of only one rule, viz, the injunction to assign specific headings. This rule, always controversial, has become even more debated and interpreted with the move to the online environment
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: LCSH: semantics, syntax and specifity (2000)
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- Abstract
- This paper looks at changes affecting LCSH over its 100-year history. Adopting a linguistic conceptualization, it frames these changes as relating to the semantics, syntax and pragmatics of the LCSH language. While its category semantics has remained stable over time, the LCSH relational semantics underwent a significant upheaval when a thesaural structure was imposed upon its traditional See and See also structure. Over time the LCSH syntax has become increasingly complex as it has moved from being largely enumerative to in large part synthetic. Until fairly recently the LCSH pragmatics consisted of only one rule, viz, the injunction to assign specific headings. This rule, always controversial, has become even more debated and interpreted with the move to the online environment
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: ¬The impact of computer technology on knowledge representations (1992)
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- Abstract
- The advent of the computer has brought epistemological questions, heretofore the province of classificationists and philosophers, into the limelight of popular thought. No longer of only theoretical interest, such questions stand in need of operational answers, at least if computers are to process information intelligently. Answers to these questions are embodied in what today are known as knowledge representations. Knowledge representations are used for a variety of related purposes, including language and text understanding, cognitive research, expert system development and information retrieval. This paper focuses on the use of three computer-based knowledge representations of potential relevance for information retrieval: hypertext systems, cluster analysis and knowledge representations accomodating rule-based reasoning. It then considers research that might be pursued to inform the development of knowledge representations for information retrieval
-
Svenonius, E.: ¬The epistemological foundations of knowledge representations (2004)
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- Abstract
- This paper looks at the epistemological foundations of knowledge representations embodied in retrieval languages. It considers questions such as the validity of knowledge representations and their effectiveness for the purposes of retrieval and automation. The knowledge representations it considers are derived from three theories of meaning that have dominated twentieth-century philosophy.
-
McGarry, D.; Svenonius, E.: More on improved browsable displays for online subject access (1991)
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- Abstract
- Key problems of subject searches in online public access catalogs are that too much may be retrieved and that the display may be arranged in what appears to be an unintuitive and unhelpful manner. A study was undertaken on one large database to determine how often the display of a subject and its modifications and subdivisions extended over more than two screens and what the results on display would be of compressing geographic subdivisions and other modifications. The study then addressed the question of how often the display of a term and its subdivisions was interrupted by the appearance in the display of inverted headings, phrase headings, and headings with parenthetical qualifiers
-
Svenonius, E.: Unanswered questions in the design of controlled vocabularies (1986)
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- Abstract
- The issue of free-text versus controlled vocabulary is examined in this article. The history of the issue, which is seen as beginning with the debate over title term indexing in the last century, is reviewed and the attention is turned to questions which have not been satisfactorily addressed by previous research. The point is made that these questions need to be answered if we are to design retrieval tools, such as thesauri, upon a national basis
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Svenonius, E.: Facet definition: a case study (1978)
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- Abstract
- Historical account of the sophisticated method of indexing developed by J.O. Kaiser (1896/97), a librarian at the Philadelphia Commercial Museum who established his index on cards (a novelty then) and distinguished his items according to the categories 'concrete', 'process', and 'country'. He also introduced "statement indexing" and rules to this end in order to permit the supply of "complete information" on a subject in a document. In summarizing these findings, the author stresses the necessitiy of establishing well-defined categories if an organization of terms is to serve e.g. information retrieval.
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Svenonius, E.: Unanswered questions in the design of controlled vocabularies (1997)
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- Abstract
- The issue of free-text versus controlled vocabulary is examined in this article. The history of the issue, which is seen as beginning with the debate over title term indexing in the last century, is reviewed and the attention is turned to questions which have not been satisfactorily addressed by previous research. The point is made that these questions need to be answered if we are to design retrieval tools, such as thesauri, upon a national basis
-
Svenonius, E.: ¬The intellectual foundation of information organization (2000)
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- Footnote
- Rez. in: Knowledge organization 27(2000) no.3, S.173-175 (G. Campbell): "Bibliographic control rests on a rich and intriguing theoretical foundation. All too often, however, students and scholars of information studies pass this foundation over, perhaps because of its fragmentation. Information organization theory has evolved in tandem with practice, and particularly through innumerable policy decisions: its central tenets, therefore, appear in prefaces to manuals and catalogues, in library bulletins, in standards and rule interpretations, and in professional and scholarly conference proceedings. Gathering this theory together is a formidable task, and Svenonius has already made a significant contribution through the two sourcebooks she has coedited: Foundations of Cataloging (1985), and Theory of Subject Analysis (1985). With The Intellectual Foundation of Information Organization, 'Svenonius goes a huge step further: she pulls the fragments of bibliographic control theory together and sets them within a holistic theoretical framework. The result is a significant contribution to LIS scholarship, one which evokes the best of all possible responses: dissatisfied cries for more. Svenonius divides her treatise into two parts containing five chapters each. The first part provides a theoretically-grounded articulation of the objectives, entities, languages and principles of information organization. The field, she argues, rests on three distinct philsophical traditions. Systems philosophy, as developed in library circles by Charles Cutter, gives a holistic and visionary dimension to bibliographic control: a tendency to see individual processes as part of a larger, coherent structure. The philosophy of science, typified in the field by Cyril Cleverdon in the 1950s, emphasizes the need to quantify and generalize, and to subject the tenets of information retrieval to empirical verification. Language philosophy introduces the concept of language rules, and argues that information organization is a "particular kind of language use" (p. 6): an approach which enables us to employ linguistic concepts of semantics, vocabulary and syntax to explain the processes of information organization. Having established this framework, Svenonius goes on to discuss the objectives of bibliographic retrieval systems. Deftly combining the seminal contributions of Cutter, Seymour Lubetzky, the Paris Principles of 1961, and the IFLA objectives of 1997, she produces five central objectives of bibliographic control: locating entitles (finding), identifying entitles (collocating), selecting them (choice), acquiring or gaining access to them (acquisition), and navigating a bibliographic database (navigation) (p. 20)". -
