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  1. Wartik, S.; Fox, E.; Heath, L.; Chen, Q.-F.: Hashing algorithms (1992) 0.22 
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    Abstract
    Discusses hashing, an information storage and retrieval technique useful for implementing many of the other structures in this book. The concepts underlying hashing are presented, along with 2 implementation strategies. The chapter also contains an extensive discussion of perfect hashing, an important optimization in information retrieval, and an O(n) algorithm to find minimal perfect hash functions for a set of keys
  2. Nelson, M.J.: ¬A prefix trie index for inverted files (1997) 0.13 
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    Abstract
    A prefix trie index is applied to the problem of providing fast search times, fast load times and fast update properties in a bibliographic or full text retrieval system. For all but the largest dictionaries a single key search in the dictionary under trie hashing takes exactly 1 disk read. Front compression of search keys is used to enhance performance. Analyzes partial combining of the postings into the dictionary as a method to give both faster retrieval and improved update properties for the trie hashing inverted file. Gives statistics for a test database consisting of an online catalogue at the Graduate School of Library and Information Science Library of the University of Western Ontario, Canada. Tests the effect of changing various parameters of prefix tries in this application
  3. Lam, W.; Wong, K.-F.; Wong, C.-Y.: Chinese document indexing based on new partitioned signature file : model and evaluation (2001) 0.12 
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    Abstract
    In this article we investigate the use of signature files in Chinese information retrieval system and propose a new partitioning method for Chinese signature file based on the characteristic of Chinese words. Our partitioning method, called Partitioned Signature File for Chinese (PSFC), offers faster search efficiency than the traditional single signature file approach. We devise a general scheme for controlling the trade-off between the false drop and storage overhead while maintaining the search space reduction in PSFC. An analytical study is presented to support the claims of our method. We also propose two new hashing methods for Chinese signature files so that the signature file will be more suitable for dynamic environment while the retrieval performance is maintained. Furthermore, we have implemented PSFC and the new hashing methods, and we evaluated them using a large-scale real-world Chinese document corpus, namely, the TREC-5 (Text REtrieval Conference) Chinese collection. The experimental results confirm the features of PSFC and demonstrate its superiority over the traditional single signature file method
  4. Wartik, S.: Boolean operators (1992) 0.11 
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    Abstract
    Presents an overview of Boolean operations, which are one means of expressing queries in information retrieval systems. The concepts of Boolean operations are introduced, and 2 implementations based on sets are given. One implementation uses bit vectors; the other, hashing. The relative performance characteristics of the approaches are shown
  5. Hoad, T.C.; Zobel, J.: Methods for identifying versioned and plagiarized documents (2003) 0.10 
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    Abstract
    Hoad and Zobel term documents that originate from the same source, whether versions or plagiarisms, co-derivatives. Identification of co-derivatives is normally by a technique called fingerprinting, which uses hashing to generate surrogates in the form of integer strings derived from substrings of text, for comparison purposes, or by ranking using a similarity measure as in information retrieval. Hoad and Zobel derive several variants of what they term an identity measure, where documents with similar numbers of occurrences of words benefit and those with dissimilar numbers are penalized, for use in a ranking technique. They then review fingerprinting strategies, and characterize them by the substring size utilized, i.e. granularity, character of the hashing function, the size of the document fingerprint, i.e. resolution, and the substring selection strategy. In their experiments highest false match, HFM, the highest percentage score given an incorrect result, and separation, the difference between the lowest correct result and HFM were the measures utilized in two collections, one of 3,300 documents, and the other of 80,000 with 53 query documents. The new identity measure demonstrates superior performance to the alternatives. Only one fingerprinting strategy was able to identify all human identified similar documents, the anchor strategy. The key parameter in fingerprinting appears to be granularity, with three to five words producing the best results.
  6. Ford, D.A.; Christodoukalis, S.: File organizations for optical disks (1992) 0.09 
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    Abstract
    Optical disk technology (CD-ROM etc.) is a new and secondary storage technology. Optical disks have immense capacities and very fast retrieval performance; they are also rugged and have very long storage lifetimes. These characteristics are making them a serious threat to the traditional dominance of magnetic disks. It is important to understand and study this young and significant technology and to design retrieval structures that best utilize characteristics. Presents 6 file systems (Write-Once B-Tree; Time Split B-Tree; Compact Disk File System; Optical File Cabinet; Buffered Hashing; BIM Trees
  7. Chen, H.; Chung, Y.-M.; Ramsey, M.; Yang, C.C.: ¬A smart itsy bitsy spider for the Web (1998) 0.09 
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    Abstract
    As part of the ongoing Illinois Digital Library Initiative project, this research proposes an intelligent agent approach to Web searching. In this experiment, we developed 2 Web personal spiders based on best first search and genetic algorithm techniques, respectively. These personal spiders can dynamically take a user's selected starting homepages and search for the most closely related homepages in the Web, based on the links and keyword indexing. A graphical, dynamic, Jav-based interface was developed and is available for Web access. A system architecture for implementing such an agent-spider is presented, followed by deteiled discussions of benchmark testing and user evaluation results. In benchmark testing, although the genetic algorithm spider did not outperform the best first search spider, we found both results to be comparable and complementary. In user evaluation, the genetic algorithm spider obtained significantly higher recall value than that of the best first search spider. However, their precision values were not statistically different. The mutation process introduced in genetic algorithms allows users to find other potential relevant homepages that cannot be explored via a conventional local search process. In addition, we found the Java-based interface to be a necessary component for design of a truly interactive and dynamic Web agent
  8. Information retrieval : data structures and algorithms (1992) 0.07 
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    Content
    An edited volume containing data structures and algorithms for information retrieval including a disk with examples written in C. for prgrammers and students interested in parsing text, automated indexing, its the first collection in book form of the basic data structures and algorithms that are critical to the storage and retrieval of documents. ------------------Enthält die Kapitel: FRAKES, W.B.: Introduction to information storage and retrieval systems; BAEZA-YATES, R.S.: Introduction to data structures and algorithms related to information retrieval; HARMAN, D. u.a.: Inverted files; FALOUTSOS, C.: Signature files; GONNET, G.H. u.a.: New indices for text: PAT trees and PAT arrays; FORD, D.A. u. S. CHRISTODOULAKIS: File organizations for optical disks; FOX, C.: Lexical analysis and stoplists; FRAKES, W.B.: Stemming algorithms; SRINIVASAN, P.: Thesaurus construction; BAEZA-YATES, R.A.: String searching algorithms; HARMAN, D.: Relevance feedback and other query modification techniques; WARTIK, S.: Boolean operators; WARTIK, S. u.a.: Hashing algorithms; HARMAN, D.: Ranking algorithms; FOX, E.: u.a.: Extended Boolean models; RASMUSSEN, E.: Clustering algorithms; HOLLAAR, L.: Special-purpose hardware for information retrieval; STANFILL, C.: Parallel information retrieval algorithms
  9. Chafe, W.L.: Meaning and the structure of language (1980) 0.02 
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    Classification
    ET 400 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Einzelgebiete der Sprachwissenschaft, Sprachbeschreibung / Semantik und Lexikologie / Allgemeines
    ET 430 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Einzelgebiete der Sprachwissenschaft, Sprachbeschreibung / Semantik und Lexikologie / Synchrone Semantik / Allgemeines (Gesamtdarstellungen)
    RVK
    ET 400 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Einzelgebiete der Sprachwissenschaft, Sprachbeschreibung / Semantik und Lexikologie / Allgemeines
    ET 430 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Einzelgebiete der Sprachwissenschaft, Sprachbeschreibung / Semantik und Lexikologie / Synchrone Semantik / Allgemeines (Gesamtdarstellungen)
  10. Boßmeyer, C.: UNIMARC und MAB : Strukturunterschiede und Kompatibilitätsfragen (1995) 0.02 
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    Source
    Zeitschrift für Bibliothekswesen und Bibliographie. 42(1995) H.5, S.465-480
  11. SimTown : baue deine eigene Stadt (1995) 0.02 
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    Abstract
    SimTown wurde entwickelt, um Kindern die wichtigsten Konzepte der Wirtschaft (Angebot und Nachfrage), Ökologie (Rohstoffe, Umweltverschmutzung und Recycling) und Städteplanung (Gleichgewicht zwischen Wohnraum, Arbeitsplätzen und Erholungsstätten) auf einfache und unterhaltsame Art nahezubringen
    Issue
    PC CD-ROM Windows. 8 Jahre und älter.
  12. Atzbach, R.: ¬Der Rechtschreibtrainer : Rechtschreibübungen und -spiele für die 5. bis 9. Klasse (1996) 0.02 
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    Abstract
    Alte und neue Rechtschreibregeln
    Issue
    MS-DOS und Windows.
  13. Geiß, D.: Gewerbliche Schutzrechte : Rationelle Nutzung ihrer Informations- und Rechtsfunktion in Wirtschaft und Wissenschaft Bericht über das 29.Kolloquium der Technischen Universität Ilmenau über Patentinformation und gewerblichen Rechtsschutz (2007) 0.02 
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    Source
    Information - Wissenschaft und Praxis. 58(2007) H.6/7, S.376-379
  14. Engel, P.: Teleosemantics: realistic or anti-realistic? : Votum (1992) 0.02 
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    Series
    Philosophie und Geschichte der Wissenschaften; Bd.18
    Source
    Wirklichkeit und Wissen: Realismus, Antirealismus und Wirklichkeits-Konzeptionen in Philosophie und Wissenschaften. Hrsg.: H.J. Sandkühler
  15. Pires, C.M.; Guédon, J.-C.; Blatecky, A.: Scientific data infrastructures : transforming science, education, and society (2013) 0.02 
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    Abstract
    Data is everywhere - praktisch bei allen wissenschaftlichen, staatlichen, gesellschaftlichen und wirtschaftlichen Aktivitäten entstehen sie. Die Daten werden erzeugt durch Befragungen, mobile und eingebettete Systeme, Sensoren, Beobachtungssysteme, wissenschaftliche Instrumente, Publikationen, Experimente, Simulationen, Auswertungen und Analysen. Bürger, Wissenschaftler, Forschende und Lehrende kommunizieren durch den Austausch von Daten, Software, Veröffentlichungen, Berichte, Simulationen und Visualisierungen. Darüber hinaus führen die zunehmende Nutzung der visuellen Kommunikation für Unterhaltung und zwischenmenschlichen Beziehungen sowie die rasche Zunahme der sozialen Netzwerke zu riesigen Datenmengen. Daten von Observatorien, Experimenten und Umweltüberwachung sowie aus der Genforschung und dem Gesundheitswesen generieren eine Größenordnung von Daten alle zwei Jahre, die weit über das Mooresche Gesetz hinausgeht - und dabei ist noch kein Ende in Sicht. Wissenschaftliche Publikationen sind Datengrundlage für die weitere wissenschaftliche Arbeit und Publikationen.
    Source
    Zeitschrift für Bibliothekswesen und Bibliographie. 60(2013) H.6, S.325-331
  16. OCLC PICA übernimmt die Sisis Informationssysteme (2005) 0.02 
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    Abstract
    Mit dem Ziel, ihre Position als einer der führenden Hersteller von Bibliothekssystemen weiter auszubauen, übernimmt die OCLC PICA B.V. in Leiden (NL) die Sisis Informationssysteme GmbH in Oberhaching. Beide Unternehmen ergänzen sich hervorragend in technologischer Hinsichtwie auch im Servicebereich. Durch die entstehenden Synergien kann die neue, gestärkte Organisation ihre Produkte und Services künftig noch schneller und wirtschaftlicher anbieten.
    Content
    "Der stetige Wandel macht auch vor Bibliotheken nicht Halt. Immer wichtiger werden neue Geschäftsprozesse und die optimale Vernetzung der unterschiedlichen Arbeitsbereiche. Das Behaupten der Spitzenposition in diesem Markt erfordert ständige Investitionen und Ausbau der Ressourcen. Mit der Obernahme der Sisis Informationssysteme GmbH und den dort vorhandenen Kenntnissen und Fähigkeiten wurde ein effizienter Weg gefunden, die gegenwärtige Marktposition auszubauen und die Produktqualität weiter zu verbessern. Die Sisis Informationssysteme ist ein im Markt bekannter und erfolgreicher Anbieter von Bibliothekssystemen und Portallösungen mit Kunden in Deutschland, der Schweiz und den Niederlanden. Wie OCLC PICA suchte auch das Sisis Management nach Lösungen, um weiterhin in Produkte und Marktentwicklungen zu investieren und die erreichte Marktposition und Produktqualität auszubauen. Der erfolgte Zusammenschluss bietet hierfür die besten Voraussetzungen. Künftig werden OCLC PICA und Sisis ihre Technologien, Fähigkeiten und Methoden zum Vorteil ihrer Kunden gemeinsam nutzen und aufeinander abstimmen und einen besseren und vor allem kundennäheren Service anbieten können. Durch die Verstärkung des Entwicklungsbereichs kann der Ausbau der vorhandenen Produkte fachlich und funktional vorangetrieben werden. Die Kunden werden von der wechselseitigen Nutzung innovativer Komponenten und dem erweiterten Produktportfolio nur profitieren."
    Footnote
    Vgl.: www. oclcpica.org und www.sisis.de
  17. Mult IK media : eine multimediale Präsentation des Fachbereichs Informations- und Kommunikationswesen der Fachhochschule Hannover (1997) 0.02 
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    Abstract
    Diese CD-ROM enthält eine multimediale Präsentation des Fachbereichs Informations- und Kommunikationswesen der FH Hannover, die über folgende Themen informiert: (1) Berufsbild der Informationspezialisten, Einsatzbereiche und Tätigkeiten (2) Geschichte des Fachbereichs, Gründung, Studentenzahlen, etc. (3) Vorstellung der Studiengänge des Fachbereichs unter Berücksichtigung der Berufsbilder, der Zulassungsbedingungen, der Studienorganisationen und der Praktikumsstellen (4) Ausstattung und Kapazitäten des Fachbereichs (5) Ausgewählte Diplom- und Projektarbeiten (6) Aktivitäten des Fachbereichs in Kooperation mit Partnerhochschulen, a.B. Auslandsprogramme und -projekte, Studenten-Summer-Seminare (7) Präsenz des Fachbereichs im WWW des Internet
    Imprint
    Hannover : FH, Fb Informations- und Kommunikationswesen
  18. Borko, H.; Bernier, C.L.: Abstracting concepts and methods (1975) 0.02 
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    Classification
    ES 930 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Informationsbehandlung
    RVK
    ES 930 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Informationsbehandlung
  19. ¬Der Froschkönig : die schönsten Märchen als Erzählung interaktiv in Ton Bild und Animation (1996) 0.02 
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    Abstract
    Auf dieser CD-ROM wird - für jung und alt - eines der schönsten Märchen multimedial zu neuem Leben erweckt. In schönen Bildern und lustigen Animationen, durch Musik und Sprache unterstützt, wird das Märchen vom 'Froschkönig' spannend erzählt
    Issue
    Windows- und Mac-Version.
  20. Bertelsmann Lexikon Tiere (1994) 0.02 
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    Abstract
    Bietet neben rund 2.000 ausführlichen Tierbeschreibungen, Übersichtsartikeln und Sonderbeiträgen zu Tierverhalten und Lebensformen etwa 2.000 überwiegend farbige Fotos, Grafiken und Karten; zahlreiche Ton- und Videosequenzen; ein Glossar zur Erläuterung zoologischer Fachbegriffe; ein unterhaltsames und lehrreiches Quiz

Authors

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  • a 739
  • m 299
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  • i 21
  • n 17
  • x 12
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