Literatur zur Informationserschließung

Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.

© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 28. April 2022)

Suchergebnisse

• 1
  He, J. ; Ping, Q. ; Lou, W. ; Chen, C.: PaperPoles : facilitating adaptive visual exploration of scientific publications by citation links.
  In: Journal of the Association for Information Science and Technology. 70(2019) no.8, S.843-857.
  
  Abstract: Finding relevant publications is a common task. Typically, a researcher browses through a list of publications and traces additional relevant publications. When relevant publications are identified, the list may be expanded by the citation links of the relevant publications. The information needs of researchers may change as they go through such iterative processes. The exploration process quickly becomes cumbersome as the list expands. Most existing academic search systems tend to be limited in terms of the extent to which searchers can adapt their search as they proceed. In this article, we introduce an adaptive visual exploration system named PaperPoles to support exploration of scientific publications in a context-aware environment. Searchers can express their information needs by intuitively formulating positive and negative queries. The search results are grouped and displayed in a cluster view, which shows aspects and relevance patterns of the results to support navigation and exploration. We conducted an experiment to compare PaperPoles with a list-based interface in performing two academic search tasks with different complexity. The results show that PaperPoles can improve the accuracy of searching for the simple and complex tasks. It can also reduce the completion time of searching and improve exploration effectiveness in the complex task. PaperPoles demonstrates a potentially effective workflow for adaptive visual search of complex information.
  
  Inhalt: Vgl.: https://onlinelibrary.wiley.com/doi/10.1002/asi.24171.
  
  Themenfeld: Informetrie
  Wissenschaftsfach: Kommunikationswissenschaften
  Objekt: PaperPoles
  
  
• 2
  Ping, Q. ; He, J. ; Chen, C.: How many ways to use CiteSpace? : a study of user interactive events over 14 months.
  In: Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1234-1256.
  
  Abstract: Using visual analytic systems effectively may incur a steep learning curve for users, especially for those who have little prior knowledge of either using the tool or accomplishing analytic tasks. How do users deal with a steep learning curve over time? Are there particularly problematic aspects of an analytic process? In this article we investigate these questions through an integrative study of the use of CiteSpace-a visual analytic tool for finding trends and patterns in scientific literature. In particular, we analyze millions of interactive events in logs generated by users worldwide over a 14-month period. The key findings are: (i) three levels of proficiency are identified, namely, level 1: low proficiency, level 2: intermediate proficiency, and level 3: high proficiency, and (ii) behavioral patterns at level 3 are resulted from a more engaging interaction with the system, involving a wider variety of events and being characterized by longer state transition paths, whereas behavioral patterns at levels 1 and 2 seem to focus on learning how to use the tool. This study contributes to the development and evaluation of visual analytic systems in realistic settings and provides a valuable addition to the study of interactive visual analytic processes.
  
  Inhalt: Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23770/full.
  
  Themenfeld: Informetrie
  Objekt: CiteSpace
  
  
• 3
  He, J. ; Meij, E. ; Rijke, M. de: Result diversification based on query-specific cluster ranking.
  In: Journal of the American Society for Information Science and Technology. 62(2011) no.3, S.550-571.
  
  Abstract: Result diversification is a retrieval strategy for dealing with ambiguous or multi-faceted queries by providing documents that cover as many facets of the query as possible. We propose a result diversification framework based on query-specific clustering and cluster ranking, in which diversification is restricted to documents belonging to clusters that potentially contain a high percentage of relevant documents. Empirical results show that the proposed framework improves the performance of several existing diversification methods. The framework also gives rise to a simple yet effective cluster-based approach to result diversification that selects documents from different clusters to be included in a ranked list in a round robin fashion. We describe a set of experiments aimed at thoroughly analyzing the behavior of the two main components of the proposed diversification framework, ranking and selecting clusters for diversification. Both components have a crucial impact on the overall performance of our framework, but ranking clusters plays a more important role than selecting clusters. We also examine properties that clusters should have in order for our diversification framework to be effective. Most relevant documents should be contained in a small number of high-quality clusters, while there should be no dominantly large clusters. Also, documents from these high-quality clusters should have a diverse content. These properties are strongly correlated with the overall performance of the proposed diversification framework.
  
  Themenfeld: Retrievalalgorithmen
  
  
• 4
  Wu, H. ; He, J. ; Pei, Y.: Scientific impact at the topic level : a case study in computational linguistics.
  In: Journal of the American Society for Information Science and Technology. 61(2010) no.11, S.2274-2287.
  
  Abstract: In this article, we propose to apply the topic model and topic-level eigenfactor (TEF) algorithm to assess the relative importance of academic entities including articles, authors, journals, and conferences. Scientific impact is measured by the biased PageRank score toward topics created by the latent topic model. The TEF metric considers the impact of an academic entity in multiple granular views as well as in a global view. Experiments on a computational linguistics corpus show that the method is a useful and promising measure to assess scientific impact.
  
  Themenfeld: Computerlinguistik
  
  
• 5
  Hubert, G. ; Mothe, J.: ¬An adaptable search engine for multimodal information retrieval.
  In: Journal of the American Society for Information Science and Technology. 60(2009) no.8, S.1625-1634.
  
  Abstract: This article describes an information retrieval approach according to the two different search modes that exist: browsing an ontology (via categories) or defining a query in free language (via keywords). Various proposals offer approaches adapted to one of these two modes. We present a proposal leading to a system allowing the integration of both modes using the same search engine. This engine is adapted according to each possible search mode.
  
  Themenfeld: Retrievalalgorithmen
  
  
• 6
  DeLoache, J.S.: Wie Kinder in Symbolen denken lernen.
  In: Spektrum der Wissenschaft. 2006, H.4, S.54-59.
  (Kognitionsforschung)
  
  Abstract: Der Zusammenhang zwischen einem Ding, das auf ein Ding verweist, und diesem anderen Ding ist für einen Zweieinhalbjährigen alles andere als offensichtlich
  
  Wissenschaftsfach: Kognitionswissenschaft
  
  
• 7
  Grothe, J.: ¬Das lokale Bibliothekssystem LIBERO : Erfahrungen mit LIBERO in Sachsen / Dresden.
  In: 4. BSZ-Kolloquium am 17. und 18. September an der Universität Stuttgart. Vorträge. Konstanz : Bibliotheksservice-Zentrum Baden-Württemberg, 2003. S.53-65.
  
  Anmerkung: Powerpoint-Folien
  
  Objekt: BSZ ; Horizon ; Libero
  Land/Ort: D ; Sachsen ; Dresden
  
  
• 8
  Mothe, J. ; Chrisment, C. ; Dousset, B. ; Alaux, J.: DocCube : Multi-dimensional visualisation and exploration of large document sets.
  In: Journal of the American Society for Information Science and technology. 54(2003) no.7, S.650-659.
  
  Abstract: This paper presents a novel user interface that provides global visualizations of large document sets in order to help users to formulate the query that corresponds to their information needs and to access the corresponding documents. An important element of the approach we introduce is the use of concept hierarchies (CHs) in order to structure the document collection. Each CH corresponds to a facet of the documents users can be interested in. Users browse these CHs in order to specify and refine their information needs. Additionally the interface is based an OLAP principles and multidimensional analysis operators are provided to users in order to allow them to explore a document collection.
  
  Anmerkung: Teil eines Themenheftes: "Web retrieval and mining: A machine learning perspective"
  
  Themenfeld: Internet ; Suchoberflächen
  Objekt: WWW ; DocCube
  
  
• 9
  Nitzsche, J.: Inhaltserschließung von medizinischen Internetquellen und Multimediaprodukten.
  In: nfd Information - Wissenschaft und Praxis. 52(2001) H.2, S.79-87.
  
  Abstract: In zunehmendem Maße finden sich medizinische Informationen ausschließlich im Internet und auf Multimediaprodukten. Dies erhöht die Notwendigkeit einer inhaltlichen Erschließung dieser Medien, die über die Möglichkeiten der Suchmaschinen hinausgeht. Momentan erschließen medizinische Bibliotheken die Neuen Medien mit den traditionellen Mitteln der klassischen Inhaltserschließung konventioneller Medien: systematische Erschließung mit Klassifikationen (NLM-Klassifikation), im Internet meist in der Form strukturierter Listen, und verbale Sacherschließung mit Fachthesaurl (meist MESH oder RSWK), im Internet ergänzt um standardisierte Metadaten (wie Dublin Core DC, Learning Object Data LOD, Platform for Internet Content Selection PICS). Dies geschieht mit großem Aufwand auch deshalb, um eine Kompatibilität der Erschließung und Suchbarkeit von konventionellen und Neuen Medien sicherzustellen, obwohl die Neuen Medien eher wenig und nur in einem bestimmten Kontext genutzt werden. Hängt die geringe Nutzung der Neuen Medien möglicherweise mit einer inadäquaten Evaluierung und Systematisierung zusammen? Vor- und Nachteile der Erschließung der Neuen Medien durch systematische und verbale Klassifikation werden dargestellt. Daraus werden Empfehlungen entwickelt, welchen Anforderungen Erschließungsinstrumente für Neue Medien genügen sollten und welche Konsequenzen sich daraus für die zukünftige Inhaltserschließung Neuer Medien im Sinne einer höheren Nutzbarkeit und Nutzung ergeben (kooperative Erschließung, Bildung von Kompetenzzentren, Entwicklung neuer Erschließungsinstrumente)
  
  Themenfeld: Internet ; Informationsmittel
  Wissenschaftsfach: Medizin
  
  
• 10
  Kreische, J.: ¬Der Standortkatalog als Instrument der Revision nach Einführung der Online-Katalogisierung.
  Köln : Fachhochschule, Fachbereich Bibliotheks- und Informationswesen, 1999. xxx S.
  
  Anmerkung: Hausarbeit zur Prüfung für den höheren Bibliotheksdienst; Frühjahr 1999
  
  
  
• 11
  Comeche, J.A.M.: Clasificaciones documentales y procesos informativos : una via de racionalizacion.
  In: Scire. 3(1997) no.1, S.31-53.
  
  Abstract: Outlines the more important typologies used to categorize documents between 1960-1990 using criteria such as media, primary and secondary publications and level of publication - published or unpublished materials. Contrasts these typologies with one obtained by applying a model of a documentary chain, with the aim of provoking a constructive debate leading to the standardization of the terminology
  
  Anmerkung: Übers. des Titels: Document categories and information processes: a way of rationalization
  
  Themenfeld: Formalerschließung
  
  
• 12
  Lewin, K. ; Sprehe, J.T.: Information management in federal agencies : the neglected piece of the IRM puzzle.
  In: Government information quarterly. 13(1996) no.1, S.51-63.
  
  Abstract: Presents several examples of US federal agencies' attempts to cope with information management issues to highlight the importance of managing information as a corporate resource. These include: the Dept. of Defense's Corporate Information Management Programme; the Federal Aviation Administration's Operational Data Management System; and the National Aeronautics and Space Administration's Earth Observing System Data and Information System. Highlights aspects of these information management activities that demonstrate differential agency responses to system development needs and requirements
  
  Themenfeld: Information Resources Management
  
  
• 13
  Meloche, J.: Introductory CD-ROM searching : the key to effective ondisc searching.
  New York : Haworth, 1994. 205 S.
  ISBN 1-56024-412-7
  
  Anmerkung: Rez. in: IASLIC bulletin 41(1996) no.2, S.89-90 (S. Dutta)
  
  
  
• 14
  Deaves, J.C. ; Pache, J.E.: Chemical and numerical indexing for the INSPEC database.
  In: Indexer. 16(1989), S.163-167.
  
  Abstract: The wealth of chemical information on the INSPEC database is easily retrieved using the printed subject indexes to the associated abstract journals. However, this subject indexing is insufficient for machine retrieval, and free-text searching has special difficulties. An easy-to-use retrieval system has been developed which overcomes many problems, especially the retrieval of non-stoichiometric compositions, which are a feature solid-state chemistry. The scheme is limited to inorganic material, but allows flexibility and identification of dopants, interfaces and surfaces or substrates. At the same time, a system has been introduced for the online retrieval of numerical data included in the data base. This has successfully standardized the way in which such data is held for searching, enabling further refinement of searches where numerical information is significant
  
  Themenfeld: Indexierungsstudien
  Objekt: INSPEC