Search (2571 results, page 2 of 129)

  • × year_i:[1990 TO 2000}
  1. Stets, P.: Ranking-Algorithmen im Information Retrieval (1994) 0.03 
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  2. Lustig, G.: Ranking (1991) 0.03 
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  3. Harman, D.: Ranking algorithms (1992) 0.03 
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    Abstract
    Presents both a summary of past research done in the development of ranking algorithms and detailed instructions on implementing a ranking type of retrieval system. This type of retrieval system takes as input a natural language query without Boolean syntax and produces a list of records that 'answer' the query, with the records ranked in order of likely relevance. Ranking retrieval systems are particularly appropriate for end-users
  4. Huffman, G.D.: Semi-automatic determination of citation relevancy : user evaluation (1990) 0.03 
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    Abstract
    Online bibiographic, database searches typically produce hundreds of retrieved citations with only about 20-40% relevant to the search topic and/or problem statement. Significant amounts of time are required to categorize and select the relevant citations. A software system-SORT-AIDS/SABRE-has been developes which ranks the citations in terms of relevance. This paper presents the results of a comprehensive user evaluation of the relevance ranking procedures. Test results show that the software generated distributions approach the ideal distribution-all relevant citations at the beginning of the collection-in 22% of the cases, are 23% better than the random distribution-relevant citations distributed uniformly throughout the dcollection-on average and are poorer than the random distribution in 4% of the cae.
  5. Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997) 0.03 
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    Abstract
    Reports results of a bibliometric study of the literature of Qigong: a relaxation technique used to teach patients to control their heart rate, blood pressure, temperature and other involuntary functions through controlles breathing. All articles indexed in the MEDLINE CD-ROM database, between 1965 and 1995 were identified using 'breathing exercises' MeSH term. The articles were analyzed for geographical and language distribution and a ranking exercise enabled a core list of periodicals to be identified. In addition, the study shed light on the changing frequency of the MeSH terms and evaluated the research areas by measuring the information from these respective MeSH headings
    Source
    International forum on information and documentation. 22(1997) no.3, S.38-44
  6. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.03 
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    Abstract
    Keyword based querying has been an immediate and efficient way to specify and retrieve related information that the user inquired. However, conventional document ranking based on an automatic assessment of document relevance to the query may not be the best approach when little information is given. Proposes an idea to integrate 2 existing techniques, query expansion and relevance feedback to achieve a concept-based information search for the Web
    Date
    1. 8.1996 22:08:06
  7. Hsieh-Yee, I.: ¬The retrieval power of selected search engines : how well do they address general reference questions and subject questions? (1998) 0.03 
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    Abstract
    Evaluates the performance of 8 major Internet search engines in answering 21 real reference questions and 5 made up subject questions. Reports on the retrieval and relevancy ranking abilities of the search engines. Concludes that the search engines did not produce good results for the reference questions unlike for the subject questions. The best engines are identified by type of questions, with Infoseek best for the subject questions, and OpenText best for refrence questions
    Date
    25.12.1998 19:22:51
  8. Lawrence, S.; Giles, C.L.: Inquirus, the NECI meta search engine (1998) 0.03 
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    Abstract
    Presents Inquirus, a WWW meta search engine which works by downloading and analysing the individual documents. It makes improvements over existing search engines in a number of areas: more useful document summaries incorporating query term context, identification of both pages which no longer exist and pages which no longer contain the query terms, advanced detection of duplicate pages, improved document ranking using proximity information, dramatically improved precision for certain queries by using specific expressive forms, and quick jump links and highlighting when viewing the full document
    Date
    1. 8.1996 22:08:06
  9. Huffman, G.D.; Vital, D.A.; Bivins, R.G.: Generating indices with lexical association methods : term uniqueness (1990) 0.03 
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    Abstract
    A software system has been developed which orders citations retrieved from an online database in terms of relevancy. The system resulted from an effort generated by NASA's Technology Utilization Program to create new advanced software tools to largely automate the process of determining relevancy of database citations retrieved to support large technology transfer studies. The ranking is based on the generation of an enriched vocabulary using lexical association methods, a user assessment of the vocabulary and a combination of the user assessment and the lexical metric. One of the key elements in relevancy ranking is the enriched vocabulary -the terms mst be both unique and descriptive. This paper examines term uniqueness. Six lexical association methods were employed to generate characteristic word indices. A limited subset of the terms - the highest 20,40,60 and 7,5% of the uniquess words - we compared and uniquess factors developed. Computational times were also measured. It was found that methods based on occurrences and signal produced virtually the same terms. The limited subset of terms producedby the exact and centroid discrimination value were also nearly identical. Unique terms sets were produced by teh occurrence, variance and discrimination value (centroid), An end-user evaluation showed that the generated terms were largely distinct and had values of word precision which were consistent with values of the search precision.
    Date
    23.11.1995 11:29:46
  10. Glogau, R.: Suchmaschine mit Köpfchen (1996) 0.03 
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    Abstract
    Der Begriff 'Volltextsuche im Web' klingt langweilig. Doch wer möchte nicht gerne wissen, welche WWW-Seiten ein Link auf die eigene Homepage enthalten. Was sich alles finden läßt, zeigt dieser Crashkurs anhand der schnellsten Suchmaschine im Web
  11. Gilster, P.: Suchen und Finden im Internet (1997) 0.03 
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    RSWK
    Internet / Suchmaschine (21)
    Subject
    Internet / Suchmaschine (21)
  12. Gamperl, J.: Javascript-Suche : Eine Suchmaschine in Javascript (1998) 0.03 
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    Abstract
    Sie würden gerne eine suchmaschine für Ihre Webseiten anbieten, aber bei Ihrem Provider haben Sie nicht die Möglichkeit, eigene CGI-Skripte einzubinden? In diesem Fall kann Ihnen Javascript weiterhelfen. Internet Professionell zeigt Ihnen, wie Sie ein entsprechendes Skript erstellen und selbst anpassen können
  13. Babiak, U.: Effektive Suche im Internet : Suchstrategien, Methoden, Quellen (1999) 0.03 
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    RSWK
    Internet / Suchmaschine (21)
    Subject
    Internet / Suchmaschine (21)
  14. Babiak, U.: Effektive Suche im Internet : Suchstrategien, Methoden, Quellen (1997) 0.03 
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    RSWK
    Internet / Suchmaschine (21)
    Subject
    Internet / Suchmaschine (21)
  15. Schröter, H.G.: Unternehmensgedächtnis bremst die Informationsflut : Auch der Bundestag nutzt eine Verity-Suchmaschine, Agenten pushen Daten auf den Schirm (1997) 0.03 
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  16. Kuberek, M.; Lohrum, S.: Schnittstelle Lokalsystem - Suchmaschine : Spezifikation der Anforderungen (1997) 0.03 
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  17. Page, L.; Brin, S.; Motwani, R.; Winograd, T.: ¬The PageRank citation ranking : Bringing order to the Web (1999) 0.03 
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  18. Heine, M.M.: Bradford ranking conventions and their application to a growing literature (1998) 0.03 
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    Abstract
    Bradford distributions describe the relationship between 'journal productivities' and 'journal rankings by productivity'. However, different ranking conventions exist, implying some ambiguity as to what the Bradford distribution 'is'. A need accordingly arises for a standard ranking convention to assist comparisons between empirical data, and also comparisons between empirical data and theoretical models. Five ranking conventions are described including the one used originally by Bradford, along with suggested distinctions between 'Bradford data set', 'Bradford distribution', 'Bradford graph', 'Bradford model', and 'Bradford's law'. Constructions such as the Lotka distribution, Groos droop (generalised to accomodate growth as well as fall-off in the Bradford log-graph), Brookes hooks, and the slope and intercept of the Bradford log graph are clarified on this basis
  19. Jones, K.: Linguistic searching versus relevance ranking : DR-LINK and TARGET (1999) 0.03 
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  20. So, C.Y.K.: Citation ranking versus expert judgement in evaluating communication scholars : effects of research specialty size and individual prominence (1998) 0.03 
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    Abstract
    Numerous attempts have been made to validate the use of citations as an evaluation method by comparing it with peer review. Unlike past studies using journals, research articles or universities as the subject matter, the present study extends the comparison to the ranking of individual scholars. Results show that citation ranking and expert judgement of communication scholars are highly correlated. The citation methods and the expert judgement method are found to work better in smaller research areas and yield more valid evaluation results for more prominent scholars

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