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
  Bogaard, T. ; Hollink, L. ; Wielemaker, J. ; Ossenbruggen, J. van ; Hardman, L.: Metadata categorization for identifying search patterns in a digital library.
  In: Journal of documentation. 75(2019) no.2, S.270-286.
  
  Abstract: Purpose For digital libraries, it is useful to understand how users search in a collection. Investigating search patterns can help them to improve the user interface, collection management and search algorithms. However, search patterns may vary widely in different parts of a collection. The purpose of this paper is to demonstrate how to identify these search patterns within a well-curated historical newspaper collection using the existing metadata. Design/methodology/approach The authors analyzed search logs combined with metadata records describing the content of the collection, using this metadata to create subsets in the logs corresponding to different parts of the collection. Findings The study shows that faceted search is more prevalent than non-faceted search in terms of number of unique queries, time spent, clicks and downloads. Distinct search patterns are observed in different parts of the collection, corresponding to historical periods, geographical regions or subject matter. Originality/value First, this study provides deeper insights into search behavior at a fine granularity in a historical newspaper collection, by the inclusion of the metadata in the analysis. Second, it demonstrates how to use metadata categorization as a way to analyze distinct search patterns in a collection.
  
  Inhalt: Vgl.: https://www.emeraldinsight.com/doi/full/10.1108/JD-06-2018-0087.
  
  Themenfeld: Metadaten
  Behandelte Form: Zeitungen
  
  
• 2
  Huurnink, B. ; Hollink, L. ; Heuvel, W. van den ; Rijke, M. de: Search behavior of media professionals at an audiovisual archive : a transaction log analysis.
  In: Journal of the American Society for Information Science and Technology. 61(2010) no.6, S.1180-1197.
  
  Abstract: Finding audiovisual material for reuse in new programs is an important activity for news producers, documentary makers, and other media professionals. Such professionals are typically served by an audiovisual broadcast archive. We report on a study of the transaction logs of one such archive. The analysis includes an investigation of commercial orders made by the media professionals and a characterization of sessions, queries, and the content of terms recorded in the logs. One of our key findings is that there is a strong demand for short pieces of audiovisual material in the archive. In addition, while searchers are generally able to quickly navigate to a usable audiovisual broadcast, it takes them longer to place an order when purchasing a subsection of a broadcast than when purchasing an entire broadcast. Another key finding is that queries predominantly consist of (parts of) broadcast titles and of proper names. Our observations imply that it may be beneficial to increase support for fine-grained access to audiovisual material, for example, through manual segmentation or content-based analysis.
  
  Themenfeld: Benutzerstudien
  Behandelte Form: AV-Materialien
  Anwendungsfeld: Medienarchive (Rundfunk/Fernsehen)
  
  
• 3
  Hollink, L. ; Assem, M. van: Estimating the relevance of search results in the Culture-Web : a study of semantic distance measures.
  In: http://www.cs.vu.nl/~mark/papers/Hollink10a.pdf.
  
  Abstract: More and more cultural heritage institutions publish their collections, vocabularies and metadata on the Web. The resulting Web of linked cultural data opens up exciting new possibilities for searching and browsing through these cultural heritage collections. We report on ongoing work in which we investigate the estimation of relevance in this Web of Culture. We study existing measures of semantic distance and how they apply to two use cases. The use cases relate to the structured, multilingual and multimodal nature of the Culture Web. We distinguish between measures using the Web, such as Google distance and PMI, and measures using the Linked Data Web, i.e. the semantic structure of metadata vocabularies. We perform a small study in which we compare these semantic distance measures to human judgements of relevance. Although it is too early to draw any definitive conclusions, the study provides new insights into the applicability of semantic distance measures to the Web of Culture, and clear starting points for further research.
  
  Themenfeld: Wissensrepräsentation ; Semantic Web
  
  
• 4
  Hollink, L. ; Assem, M. van ; Wang, S. ; Isaac, A. ; Schreiber, G.: Two variations on ontology alignment evaluation : methodological issues.
  In: http://www.cs.vu.nl/~mark/papers/Hollink08a.pdf.
  
  Abstract: Evaluation of ontology alignments is in practice done in two ways: (1) assessing individual correspondences and (2) comparing the alignment to a reference alignment. However, this type of evaluation does not guarantee that an application which uses the alignment will perform well. In this paper, we contribute to the current ontology alignment evaluation practices by proposing two alternative evaluation methods that take into account some characteristics of a usage scenario without doing a full-fledged end-to-end evaluation. We compare different evaluation approaches in three case studies, focussing on methodological issues. Each case study considers an alignment between a different pair of ontologies, ranging from rich and well-structured to small and poorly structured. This enables us to conclude on the use of different evaluation approaches in different settings.
  
  Themenfeld: Wissensrepräsentation ; Semantische Interoperabilität
  
  
• 5
  Schreiber, G. ; Amin, A. ; Assem, M. van ; Boer, V. de ; Hardman, L. ; Hildebrand, M. ; Hollink, L. ; Huang, Z. ; Kersen, J. van ; Niet, M. de ; Omelayenko, B. ; Ossenbruggen, J. van ; Siebes, R. ; Taekema, J. ; Wielemaker, J. ; Wielinga, B.: MultimediaN E-Culture demonstrator.
  In: http://www.cs.vu.nl/~mark/papers/Schreiber06a.pdf.
  
  Abstract: The main objective of the MultimediaN E-Culture project is to demonstrate how novel semantic-web and presentation technologies can be deployed to provide better indexing and search support within large virtual collections of culturalheritage resources. The architecture is fully based on open web standards in particular XML, SVG, RDF/OWL and SPARQL. One basic hypothesis underlying this work is that the use of explicit background knowledge in the form of ontologies/vocabularies/thesauri is in particular useful in information retrieval in knowledge-rich domains. This paper gives some details about the internals of the demonstrator.
  
  Inhalt: The online version of the demonstrator can be found at: http://e-culture.multimedian.nl/demo/search.
  
  Themenfeld: Wissensrepräsentation
  Objekt: E-Culture MultimediaN
  Anwendungsfeld: Museen