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)
1Zhao, L. ; Wu, L. ; Huang, X.: Using query expansion in graph-based approach for query-focused multi-document summarization.
In: Information processing and management. 45(2009) no.1, S.35-41.
Abstract: This paper presents a novel query expansion method, which is combined in the graph-based algorithm for query-focused multi-document summarization, so as to resolve the problem of information limit in the original query. Our approach makes use of both the sentence-to-sentence relations and the sentence-to-word relations to select the query biased informative words from the document set and use them as query expansions to improve the sentence ranking result. Compared to previous query expansion approaches, our approach can capture more relevant information with less noise. We performed experiments on the data of document understanding conference (DUC) 2005 and DUC 2006, and the evaluation results show that the proposed query expansion method can significantly improve the system performance and make our system comparable to the state-of-the-art systems.
2Zhao, L.: How librarians used e-resources : an analysis of citations in CCQ.
In: Cataloging and classification quarterly. 42(2006) no.1, S.117-131.
Abstract: How are library professionals who do research about bibliographic organization using electronic resources (e-resources) in their journal articles? Are they keeping pace with the use of e-resources outside the library world? What are the e-resources most used in their research? This article aims to address these and other questions by analyzing bibliographical references/notes in articles in Cataloging and Classification Quarterly (CCQ) for every other year from 1994 to 2004.
Inhalt: Vgl. auch: http://catalogingandclassificationquarterly.com/
3Zhao, L.: Save space for "newcomers" : analyzing problems in book number assignment under the LCC system.
In: Cataloging and classification quarterly. 38(2004) no.1, S.105-119.
Abstract: With more than a million books published each year, thousands of books will be cataloged and shelved in libraries. Assigning book numbers efficiently and balancing the distribution of main entries over the LC Cutter Table entries have become critical issues for shelving later entries in libraries using the Library of Congress Classification (LCC) system. This paper aims to explore and discuss the problems in assigning book numbers (Cutter numbers) to printed materials under the LCC System. The existing problems have blocked or invaded the usage of some numbers and letters ruled by the LC Cutter Table. The reason is either not following the LC Cutter Table well, or confusion in using the Table. Directly downloading the LC record to the local database adds more questions to the issue.
Objekt: LCC ; Cutter-Tafel