Search (18 results, page 1 of 1)

  • × theme_ss:"Literaturübersicht"
  • × year_i:[1990 TO 2000}
  1. Trybula, W.J.: Data mining and knowledge discovery (1997) 0.03 
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    Abstract
    State of the art review of the recently developed concepts of data mining (defined as the automated process of evaluating data and finding relationships) and knowledge discovery (defined as the automated process of extracting information, especially unpredicted relationships or previously unknown patterns among the data) with particular reference to numerical data. Includes: the knowledge acquisition process; data mining; evaluation methods; and knowledge discovery. Concludes that existing work in the field are confusing because the terminology is inconsistent and poorly defined. Although methods are available for analyzing and cleaning databases, better coordinated efforts should be directed toward providing users with improved means of structuring search mechanisms to explore the data for relationships
    Theme
    Data Mining
  2. Metz, A.: Community service : a bibliography (1996) 0.03 
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    Date
    17.10.1996 14:22:33
  3. Mostafa, J.: Digital image representation and access (1994) 0.02 
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    Abstract
    State of the art review of techniques used to generate, store and retrieval digital images. Explains basic terms and concepts related to image representation and describes the differences between bilevel, greyscale, and colour images. Introduces additional image related data, specifically colour standards, correction values, resolution parameters and lookup tables. Illustrates the use of data compression techniques and various image data formats that have been used. Identifies 4 branches of imaging research related to dtaa indexing and modelling: verbal indexing; visual surrogates; image indexing; and data structures. Concludes with a discussion of the state of the art in networking technology with consideration of image distribution, local system requirements and data integrity
  4. Rader, H.B.: Library orientation and instruction - 1993 (1994) 0.02 
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    Source
    Reference services review. 22(1994) no.4, S.81-
  5. Littlejohn, A.: CD-ROM 1991 : the year in review (1992) 0.02 
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    Abstract
    Presents a review of the literature review of books, articles and conference proceedings, on all aspects of CD-ROMs, published in 1991, plus a comprehensive bibliography. Lists the 81 periodicals cited in the article and includes keyword index to broad subjects. The review includes specific sections on: market statistics; products; awards and prizes; conferences; government data bases; portable data bases; users; student users; academic libraries; school libraries; hardware; networking; pricing; software; multimedia; standards; product development; the international scene (reporting on Canada, Central America, Africa, Europe, UK); and future possibilities
  6. Hsueh, D.C.: Recon road maps : retrospective conversion literature, 1980-1990 (1992) 0.01 
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    Source
    Cataloging and classification quarterly. 14(1992) nos.3/4, S.5-22
  7. Gabbard, R.: Recent literature shows accelerated growth in hypermedia tools : an annotated bibliography (1994) 0.01 
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    Source
    Reference services review. 22(1994) no.2, S.31-40
  8. Buckland, M.K.; Liu, Z.: History of information science (1995) 0.01 
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    Date
    13. 6.1996 19:22:20
  9. Haas, S.W.: Natural language processing : toward large-scale, robust systems (1996) 0.01 
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    Abstract
    State of the art review of natural language processing updating an earlier review published in ARIST 22(1987). Discusses important developments that have allowed for significant advances in the field of natural language processing: materials and resources; knowledge based systems and statistical approaches; and a strong emphasis on evaluation. Reviews some natural language processing applications and common problems still awaiting solution. Considers closely related applications such as language generation and th egeneration phase of machine translation which face the same problems as natural language processing. Covers natural language methodologies for information retrieval only briefly
  10. Braman, S.: Policy for the net and the Internet (1995) 0.01 
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    Abstract
    State of the art review of the Net (the global telecommunications network as a whole) and the Internet with particular reference to the development of a coherent policy for those uisng these telecommunications facilities. Policy issues discussed include: standards, intellectual property; encryption, rules for transborder data flow; and data privacy. Considers their implications for individuals as well as government and commercial institutions. The review is limited to English language publications and explores specific issues that affect the structure of government, the economy and society, as well as those involved in the design of the net and looks at comparative and international issues. Concludes that the development of policies for the net is made difficult by the many different bodies of law that apply, by the fact that the relevant technologies are new and changing because that technologies are new and rapidly changing and because the net is global. Specific characteristics of the net require new thinking on a constitutional level, since information creation, processing, flows and use are constitutive forces in society
  11. Rasmussen, E.M.: Parallel information processing (1992) 0.01 
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    Abstract
    Focuses on the application of parallel processing for the processing of text, primarily documents and document surrogates. Research on parallel processing of text has developed in 2 areas: a hardware approach involving the development of special purpose machines for text processing; and a software approach in which data structures and algorithms are developed for text searching using general purpose parallel processors
  12. Ponelis, S.; Fairer-Wessels, F.A.: Knowledge management : a literatur overview (1998) 0.01 
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    Abstract
    The concept of knowledge management is becoming increasingly prevalent in academic and vocational literature. Reviews the conceptual foundations of knowledge management starting with a conceptual clarification of knowledge relative to data and information. Discusses the characteristics in terms of forms, levels and categories of knowlegde. Against this background seeks a definition of knowledge management which is compared with information management
  13. Chowdhury, G.G.: ¬The Internet and information retrieval research : a brief review (1999) 0.01 
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    Abstract
    The Internet and related information services attract increasing interest from information retrieval researchers. A survey of recent publications shows that frequent topics are the effectiveness of search engines, information validation and quality, user studies, design of user interfaces, data structures and metadata, classification and vocabulary based aids, and indexing and search agents. Current research in these areas is briefly discussed. The changing balance between CD-ROM sources and traditional online searching is quite important and is noted
  14. Gödert, W.: Literatur zur Inhaltserschließung : ein Projekt an der FHBD in Köln (1994) 0.01 
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    Abstract
    Cologne Library School ran a project to construct a database for literature on content cataloguing and fringe disciplines. Software was the BISMAS 1.0 programme and is now the 1.5 version. The category scheme, indexes and retrieval possibilities are described. Retrieval is mainly free text, using the whole document description and all descriptive categories. BISMAS does not permit standard data file administration so a further database was provided ...
  15. Harter, S.P.; Hert, C.A.: Evaluation of information retrieval systems : approaches, issues, and methods (1997) 0.01 
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    Abstract
    State of the art review of information retrieval systems, defined as systems retrieving documents a sopposed to numerical data. Explains the classic Cranfield studies that have served as a standard for retrieval testing since the 1960s and discusses the Cranfield model and its relevance based measures of retrieval effectiveness. Details sosme of the problems with the Cranfield instruments and issues of validity and reliability, generalizability, usefulness and basic concepts. Discusses the evaluation of the Internet search engines in light of the Cranfield model, noting the very real differences between batch systems (Cranfield) and interactive systems (Internet). Because the Internet collection is not fixed, it is impossible to determine recall as a measure of retrieval effectiveness. considers future directions in evaluating information retrieval systems
  16. Shaw, D.: ¬The human-computer interface for information retrieval (1991) 0.01 
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    Abstract
    Discusses the human-computer interface for information retrieval and notes that research on human-computer interface design has generated many widely-accepted principles of interface design which should be of interest and value to designers of information retrieval systems. Work on display features such as highlighting, colour, icons, and windows has received considerable attention. research has also focused on how the user interacts with the system, whether by commands, menus, or direct manipulation. Studies of interfaces for information retrieval systems reveal that online searching has emphasised developments of front ends, with some novel uses of graphics. CD-ROM and optical media are characterised by interface diversity, again with some inclusion of graphic interfaces. Online catalogues and full text data bases have provided interesting comparisons of mode of interaction
  17. Jascó, P.: Content evaluation of databases (1997) 0.01 
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    Abstract
    State of the art review of the criteria used to judge and evaluate the quality of databases, including: content, ease of use, accessibility, customer support, documentation, and value to cost ratio. Concludes that the principle factor governing quality is content, defined by the scope and the coverage of the database and its currency, accuracy, consistency and completeness. Scope is determined by its composition and coverage, including time period, number of periodicals and other primary sources, number of articles and geographic and language distribution. Currency is measured by the time lag between publication of the primary source and availability of the corresponding records in the database. Accuracy is governed by the extent to which the records are free from errors of all types. Consistency depends on the extent to which records within the database follow the same rules. Completeness is measured by the consistency with which applicable data elements are assigned to all the records in the database. Reviews the major contributions to the literature in the field and summarizes the background of milestone studies
  18. Yee, M.M.: System design and cataloging meet the user : user interfaces to online public access catalogs (1991) 0.01 
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    Abstract
    Current research on user interfaces to online public access catalogs is reviewed in an attempt to identify research methods and findings applicable to the design of effective user interfaces to online public access catalogs. A broad definition of user interface is employed which includes data structures, in addition to searching and indexing software. The following features of online public access catalogs are discussed: the demonstration of relationships between records, the provision of entry vocabularies, the arrangement of multiple entries on the screen, the provision of access points, the display of single records, and the division of the catalog into separate files or indexes. For each feature, user studies and other research on online public access catalogs are reviewed and those findings summarized which provide insight into user needs concerning that particular feature; issues are identified and directions for further research are suggested. Implications for cataloging codes and standards and system design are discussed

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  • d 1

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  • a 18
  • b 3

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