Search (139 results, page 2 of 7)

  • × theme_ss:"Computerlinguistik"
  • × year_i:[1990 TO 2000}
  1. Lewis, D.D.; Sparck Jones, K.: Natural language processing for information retrieval (1996) 0.01 
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  2. Krause, J.: Principles of content analysis for information retrieval systems : an overview (1996) 0.01 
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  3. Bordogna, G.; Pasi, G.: ¬A fuzzy linguistic approach generalizing Boolean information retrieval : a model and its evaluation (1993) 0.01 
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    Abstract
    Describes an approach to research in the field of the generalisation of Boolean information retrieval using a model derived from an existing weighted Boolean retrieval model, with a linguistic extension, formalised within fuzzy set theory in which numeric query weights were replaced by linguistic descriptors specifying the degree of importance of the terms
    Source
    Journal of the American Society for Information Science. 44(1993) no.2, S.70-82
  4. Ahmad, F.; Yusoff, M.; Sembok, T.M.T.: Experiments with a stemming algorithm for Malay words (1996) 0.01 
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    Abstract
    Stemming is used in information retrieval systems to reduce variant word forms to common roots in order to improve retrieval effectiveness. As in other languages, there is a need for an effective stemming algorithm for the indexing and retrieval of Malay documents. The Malay stemming algorithm developed by Othman is studied and new versions proposed to enhance its performance. The improvements relate to the order in which the dictionary id looked-up, the order in which the morphological rules are applied, and the number of rules
    Source
    Journal of the American Society for Information Science. 47(1996) no.12, S.909-918
  5. Zhang, H.J.; Low, C.Y.; Smoliar, S.W.; Lu. J.H.: Video parsing, retrieval and browsing : an integrated and content-based solution (1995) 0.01 
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    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.503-512
  6. Hsinchun, C.: Knowledge-based document retrieval framework and design (1992) 0.01 
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    Abstract
    Presents research on the design of knowledge-based document retrieval systems in which a semantic network was adopted to represent subject knowledge and classification scheme knowledge and experts' search strategies and user modelling capability were modelled as procedural knowledge. These functionalities were incorporated into a prototype knowledge-based retrieval system, Metacat. Describes a system, the design of which was based on the blackboard architecture, which was able to create a user profile, identify task requirements, suggest heuristics-based search strategies, perform semantic-based search assistance, and assist online query refinement
    Source
    Journal of information science. 18(1992) no.4, S.293-314
  7. Vichot, F.; Wolinksi, F.; Tomeh, J.; Guennou, S.; Dillet, B.; Aydjian, S.: High precision hypertext navigation based on NLP automation extractions (1997) 0.01 
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    Source
    Hypertext - Information Retrieval - Multimedia '97: Theorien, Modelle und Implementierungen integrierter elektronischer Informationssysteme. Proceedings HIM '97. Hrsg.: N. Fuhr u.a
  8. Gillaspie, L.: ¬The role of linguistic phenomena in retrieval performance (1995) 0.01 
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    Abstract
    This progress report presents findings from a failure analysis of 2 commercial full text computer assisted legal research (CALR) systems. Linguistic analyzes of unretrieved documents als false drops reveal a number of potential causes for performance problems in these databases, ranging from synonymy and homography to discourse level cohesive relations. Ecxamines and discusses examples of natural language phenomena that affects Boolean retrieval system performance
    Imprint
    Medford, NJ : Learned Information
    Source
    Forging new partnerships in information: converging technologies. Proceedings of the 58th Annual Meeting of the American Society for Information Science, ASIS'95, Chicago, IL, 9-12 October 1995. Ed.: T. Kinney
  9. Ladewig, C.: 'Information Retrieval ohne Linguistik?' : Erwiderung zu dem Artikel von Gerda Ruge und Sebastian Goeser, Nfd 49(1998) H.6, S.361-369 (1998) 0.01 
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    Abstract
    Es wird eine Gegendarstellung zu Untersuchungen der Effektivität von Information Retrieval Systemen anhand der Rechercheparameter Precision und Recall gegeben. Grundlage dieser Untersuchungen sind Relevanzbestimmungen oder -einschätzungen, deren Widersprüchlichkeit geklärt wird und es werden Lösungen angeboten
    Source
    nfd Information - Wissenschaft und Praxis. 49(1998) H.8, S.476-478
  10. Sabourin, C.F. (Bearb.): Computational linguistics in information science : bibliography (1994) 0.01 
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    Abstract
    The bibliography covers information retrieval (2100 refs.), fulltext (890) or conceptual (60), automatic indexing (930), information extraction (520), query languages (1090), etc.; altogether 6390 references, fully indexed
  11. Rahmstorf, G.: Information retrieval using conceptual representations of phrases (1994) 0.01 
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    Abstract
    The information retrieval problem is described starting from an analysis of the concepts 'user's information request' and 'information offerings of texts'. It is shown that natural language phrases are a more adequate medium for expressing information requests and information offerings than character string based query and indexing languages complemented by Boolean oprators. The phrases must be represented as concepts to reach a language invariant level for rule based relevance analysis. The special type of representation called advanced thesaurus is used for the semantic representation of natural language phrases and for relevance processing. The analysis of the retrieval problem leads to a symmetric system structure
    Source
    Information systems and data analysis: prospects - foundations - applications. Proc. of the 17th Annual Conference of the Gesellschaft für Klassifikation, Kaiserslautern, March 3-5, 1993. Ed.: H.-H. Bock et al
  12. Hess, M.: ¬An incrementally extensible document retrieval system based on linguistic and logical principles (1992) 0.01 
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    Abstract
    Most natural language based document retrieval systems use the syntax structures of constituent phrases of documents as index terms. Many of these systems also attempt to reduce the syntactic variability of natural language by some normalisation procedure applied to these syntax structures. However, the retrieval performance of such systems remains fairly disappointing. Some systems therefore use a meaning representation language to index and retrieve documents. In this paper, a system is presented that uses Horn Clause Logic as meaning representation language, employs advanced techniques from Natural Language Processing to achieve incremental extensibility, and uses methods from Logic Programming to achieve robustness in the face of insufficient data. An Incrementally Extensible Document Retrieval System Based on Linguistic and Logical Principles.
    Source
    SIGIR '92: Proceedings of the 15th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval
  13. Ruge, G.; Schwarz, C.: Linguistically based term associations : a new semantic component for a hyperterm system (1990) 0.01 
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    Abstract
    REALIST (Retrieval Aids by Linguistics and Statistics) is a tool which supplies the user of free text information retrieval systems with information about the terms in the databases. The resulting tables of terms show term relations according to their meaning in the database and form a kind of 'road map' of the database to give the user orientation help
  14. Czejdo. B.D.; Tucci, R.P.: ¬A dataflow graphical language for database applications (1994) 0.01 
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    Abstract
    Discusses a graphical language for information retrieval and processing. A lot of recent activity has occured in the area of improving access to database systems. However, current results are restricted to simple interfacing of database systems. Proposes a graphical language for specifying complex applications
    Source
    CIT - Journal of computing and information technology. 2(1994) no.1, S.39-50
  15. SIGIR'92 : Proceedings of the 15th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (1992) 0.01 
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    Content
    HARMAN, D.: Relevance feedback revisited; AALBERSBERG, I.J.: Incremental relevance feedback; TAGUE-SUTCLIFFE, J.: Measuring the informativeness of a retrieval process; LEWIS, D.D.: An evaluation of phrasal and clustered representations on a text categorization task; BLOSSEVILLE, M.J., G. HÉBRAIL, M.G. MONTEIL u. N. PÉNOT: Automatic document classification: natural language processing, statistical analysis, and expert system techniques used together; MASAND, B., G. LINOFF u. D. WALTZ: Classifying news stories using memory based reasoning; KEEN, E.M.: Term position ranking: some new test results; CROUCH, C.J. u. B. YANG: Experiments in automatic statistical thesaurus construction; GREFENSTETTE, G.: Use of syntactic context to produce term association lists for text retrieval; ANICK, P.G. u. R.A. FLYNN: Versioning of full-text information retrieval system; BURKOWSKI, F.J.: Retrieval activities in a database consisting of heterogeneous collections; DEERWESTER, S.C., K. WACLENA u. M. LaMAR: A textual object management system; NIE, J.-Y.:Towards a probabilistic modal logic for semantic-based information retrieval; WANG, A.W., S.K.M. WONG u. Y.Y. YAO: An analysis of vector space models based on computational geometry; BARTELL, B.T., G.W. COTTRELL u. R.K. BELEW: Latent semantic indexing is an optimal special case of multidimensional scaling; GLAVITSCH, U. u. P. SCHÄUBLE: A system for retrieving speech documents; MARGULIS, E.L.: N-Poisson document modelling; HESS, M.: An incrementally extensible document retrieval system based on linguistics and logical principles; COOPER, W.S., F.C. GEY u. D.P. DABNEY: Probabilistic retrieval based on staged logistic regression; FUHR, N.: Integration of probabilistic fact and text retrieval; CROFT, B., L.A. SMITH u. H. TURTLE: A loosely-coupled integration of a text retrieval system and an object-oriented database system; DUMAIS, S.T. u. J. NIELSEN: Automating the assignement of submitted manuscripts to reviewers; GOST, M.A. u. M. MASOTTI: Design of an OPAC database to permit different subject searching accesses; ROBERTSON, A.M. u. P. WILLETT: Searching for historical word forms in a database of 17th century English text using spelling correction methods; FAX, E.A., Q.F. CHEN u. L.S. HEATH: A faster algorithm for constructing minimal perfect hash functions; MOFFAT, A. u. J. ZOBEL: Parameterised compression for sparse bitmaps; GRANDI, F., P. TIBERIO u. P. Zezula: Frame-sliced patitioned parallel signature files; ALLEN, B.: Cognitive differences in end user searching of a CD-ROM index; SONNENWALD, D.H.: Developing a theory to guide the process of designing information retrieval systems; CUTTING, D.R., J.O. PEDERSEN, D. KARGER, u. J.W. TUKEY: Scatter/ Gather: a cluster-based approach to browsing large document collections; CHALMERS, M. u. P. CHITSON: Bead: Explorations in information visualization; WILLIAMSON, C. u. B. SHNEIDERMAN: The dynamic HomeFinder: evaluating dynamic queries in a real-estate information exploring system
  16. Ruge, G.; Goeser, S.: Information Retrieval ohne Linguistik (1998) 0.01 
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    Abstract
    Natürlicherweise sollte man erwarten, daß linguistische Textanalyseverfahren die Effektivität und Benutzerfreundlichkeit von Information Retrieval Systemen verbessern, da sowohl Dokumente als auch Suchanfragen die interessierenden Inhalte linguistisch enkodieren. Ein Retrievalabgleich auf der Ebene der linguistischen Inhaltsdarstellung müßte demzufolge zu besseren Retrievalsystemen führen als ein Abgleich auf Wort- oder gar Zeichenebene. Tatsächlich aber ist immer noch weitgehend unklar, inwieweit linguistische Textanalyseverfahren Retrievalsysteme verbessern können. Evaluationen von Retrievalsystemen mit linguistischen Komponenten führen nach wie vor zu unterschiedlichen, teils gegenläufigen Ergebnissen, obwohl die dazu erforderliche Computerlinguistik große Fortschritte gemacht hat. Wir gehen der Frage nach, wie es zu diesen kontraintuitiven Ergenissen kommt. Dazu wird der Stand der Kunst im linguistischen IR zusammengefaßt, so daß die Ergebnisse anhand des Vergleich verschiedener Evaluierungen diskutiert werden können.
    Footnote
    Vgl. auch die Erwiderung: Ladewig, C.: 'Information Retrieval ohne Linguistik?' in: nfd 49(1998) H.8, S.476-478
    Source
    nfd Information - Wissenschaft und Praxis. 49(1998) H.6, S.361-369
  17. Pollitt, A.S.; Ellis, G.: Multilingual access to document databases (1993) 0.01 
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    Abstract
    This paper examines the reasons why approaches to facilitate document retrieval which apply AI (Artificial Intelligence) or Expert Systems techniques, relying on so-called "natural language" query statements from the end-user will result in sub-optimal solutions. It does so by reflecting on the nature of language and the fundamental problems in document retrieval. Support is given to the work of thesaurus builders and indexers with illustrations of how their work may be utilised in a generally applicable computer-based document retrieval system using Multilingual MenUSE software. The EuroMenUSE interface providing multilingual document access to EPOQUE, the European Parliament's Online Query System is described.
    Imprint
    Antigonish, NS : Canadian Association for Information Science
    Series
    Annual Conference / Canadian Association for Information Science ; 21
    Source
    Information as a Global Commodity - Communication, Processing and Use (CAIS/ACSI '93) : 21st Annual Conference Canadian Association for Information Science, Antigonish, Nova Scotia, Canada. July 1993
  18. Polity, Y.: Vers une ergonomie linguistique (1994) 0.01 
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    Abstract
    Analyzed a special type of man-mchine interaction, that of searching an information system with natural language. A model for full text processing for information retrieval was proposed that considered the system's users and how they employ information. Describes how INIST (the National Institute for Scientific and Technical Information) is developing computer assisted indexing as an aid to improving relevance when retrieving information from bibliographic data banks
  19. Göpferich, S.: Von der Terminographie zur Textographie : computergestützte Verwaltung textsortenspezifischer Textversatzstücke (1995) 0.01 
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    Abstract
    The paper presents 2 different types of computer-based retrieval systems for text-type specific information ranging from phrases to whole standardized passages. The first part describes the structure of a full-text database for text prototypes, the second part, ways of storing text-type specific phrases and passages an a combined terminological and textographic database. The program used to illustrate this second kind of retrieval system is the terminology system CATS, which the Terminology Centre at the Faculty of Applied Linguistics and Cultural Studies of the University of Mainz in Germersheim uses for its FASTERM database
  20. Frakes, W.B.: Stemming algorithms (1992) 0.01 
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    Abstract
    Desribes stemming algorithms - programs that relate morphologically similar indexing and search terms. Stemming is used to improve retrieval effectiveness and to reduce the size of indexing files. Several approaches to stemming are describes - table lookup, affix removal, successor variety, and n-gram. empirical studies of stemming are summarized. The Porter stemmer is described in detail, and a full implementation in C is presented
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates

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