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  1. Zhu, W.Z.; Allen, R.B.: Document clustering using the LSI subspace signature model (2013) 0.05 
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    Abstract
    We describe the latent semantic indexing subspace signature model (LSISSM) for semantic content representation of unstructured text. Grounded on singular value decomposition, the model represents terms and documents by the distribution signatures of their statistical contribution across the top-ranking latent concept dimensions. LSISSM matches term signatures with document signatures according to their mapping coherence between latent semantic indexing (LSI) term subspace and LSI document subspace. LSISSM does feature reduction and finds a low-rank approximation of scalable and sparse term-document matrices. Experiments demonstrate that this approach significantly improves the performance of major clustering algorithms such as standard K-means and self-organizing maps compared with the vector space model and the traditional LSI model. The unique contribution ranking mechanism in LSISSM also improves the initialization of standard K-means compared with random seeding procedure, which sometimes causes low efficiency and effectiveness of clustering. A two-stage initialization strategy based on LSISSM significantly reduces the running time of standard K-means procedures.
    Date
    23. 3.2013 13:22:36
  2. Gödert, W.; Hubrich, J.; Nagelschmidt, M.: Semantic knowledge representation for information retrieval (2014) 0.05 
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    Classification
    BCA (FH K)
    Date
    23. 7.2017 13:49:22
    GHBS
    BCA (FH K)
  3. Zanibbi, R.; Yuan, B.: Keyword and image-based retrieval for mathematical expressions (2011) 0.05 
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    Abstract
    Two new methods for retrieving mathematical expressions using conventional keyword search and expression images are presented. An expression-level TF-IDF (term frequency-inverse document frequency) approach is used for keyword search, where queries and indexed expressions are represented by keywords taken from LATEX strings. TF-IDF is computed at the level of individual expressions rather than documents to increase the precision of matching. The second retrieval technique is a form of Content-Base Image Retrieval (CBIR). Expressions are segmented into connected components, and then components in the query expression and each expression in the collection are matched using contour and density features, aspect ratios, and relative positions. In an experiment using ten randomly sampled queries from a corpus of over 22,000 expressions, precision-at-k (k= 20) for the keyword-based approach was higher (keyword: µ= 84.0,s= 19.0, image-based:µ= 32.0,s= 30.7), but for a few of the queries better results were obtained using a combination of the two techniques.
    Date
    22. 2.2017 12:53:49
  4. Börner, K.: Atlas of knowledge : anyone can map (2015) 0.05 
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    Date
    22. 1.2017 16:54:03
    22. 1.2017 17:10:56
  5. Kleineberg, M.: Context analysis and context indexing : formal pragmatics in knowledge organization (2014) 0.05 
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    Source
    http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CDQQFjAE&url=http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F3131107&ei=HzFWVYvGMsiNsgGTyoFI&usg=AFQjCNE2FHUeR9oQTQlNC4TPedv4Mo3DaQ&sig2=Rlzpr7a3BLZZkqZCXXN_IA&bvm=bv.93564037,d.bGg&cad=rja
  6. Deokattey, S.; Sharma, S.B.K.; Kumar, G.R.; Bhanumurthy, K.: Knowledge organization research : an overview (2015) 0.04 
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    Date
    22. 6.2015 16:13:38
  7. Snow, K.; Hoffman, G.L.: What makes an effective cataloging course? : a study of the factors that promote learning (2015) 0.04 
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    Date
    10. 9.2000 17:38:22
  8. Hjoerland, B.: Theories of knowledge organization - theories of knowledge (2017) 0.04 
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    Pages
    S.22-36
    Source
    Theorie, Semantik und Organisation von Wissen: Proceedings der 13. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und dem 13. Internationalen Symposium der Informationswissenschaft der Higher Education Association for Information Science (HI) Potsdam (19.-20.03.2013): 'Theory, Information and Organization of Knowledge' / Proceedings der 14. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und Natural Language & Information Systems (NLDB) Passau (16.06.2015): 'Lexical Resources for Knowledge Organization' / Proceedings des Workshops der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) auf der SEMANTICS Leipzig (1.09.2014): 'Knowledge Organization and Semantic Web' / Proceedings des Workshops der Polnischen und Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) Cottbus (29.-30.09.2011): 'Economics of Knowledge Production and Organization'. Hrsg. von W. Babik, H.P. Ohly u. K. Weber
  9. Stvilia, B.; Hinnant, C.C.; Schindler, K.; Worrall, A.; Burnett, G.; Burnett, K.; Kazmer, M.M.; Marty, P.F.: Composition of scientific teams and publication productivity at a national science lab (2011) 0.04 
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    Date
    22. 1.2011 13:19:42
  10. Martin, K.; Shilton, K.: Why experience matters to privacy : how context-based experience moderates consumer privacy expectations for mobile applications (2016) 0.04 
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    Date
    20. 7.2016 18:22:57
  11. Ajiferuke, I.; Lu, K.; Wolfram, D.: ¬A comparison of citer and citation-based measure outcomes for multiple disciplines (2010) 0.04 
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    Date
    28. 9.2010 12:54:22
  12. Doorn, M. van; Polman, K.: From classification to thesaurus ... and back? : subject indexing tools at the library of the Afrika-Studiecentrum Leiden (2010) 0.04 
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    Date
    22. 7.2010 19:48:33
  13. Thelwall, M.; Buckley, K.; Paltoglou, G.: Sentiment in Twitter events (2011) 0.04 
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    Date
    22. 1.2011 14:27:06
  14. Petric, K.; Petric, T.; Krisper, M.; Rajkovic, V.: User profiling on a pilot digital library with the final result of a new adaptive knowledge management solution (2011) 0.04 
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    Date
    13. 7.2011 14:47:22
  15. Golub, K.; Tudhope, D.; Zeng, M.L.; Zumer, M.: Terminology registries for knowledge organization systems : functionality, use, and attributes (2014) 0.04 
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    Date
    22. 8.2014 17:12:54
  16. Mathiesen, K.: Human rights as a topic and guide for LIS research and practice (2015) 0.04 
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    Abstract
    In this global information age, accessing, disseminating, and controlling information is an increasingly important aspect of human life. Often, these interests are expressed in the language of human rights-for example, rights to expression, privacy, and intellectual property. As the discipline concerned with "facilitating the effective communication of desired information between human generator and human user" (Belkin, 1975, p. 22), library and information science (LIS) has a central role in facilitating communication about human rights and ensuring the respect for human rights in information services and systems. This paper surveys the literature at the intersection of LIS and human rights. To begin, an overview of human rights conventions and an introduction to human rights theory is provided. Then the intersections between LIS and human rights are considered. Three central areas of informational human rights-communication, privacy, and intellectual property-are discussed in detail. It is argued that communication rights in particular serve as a central linchpin in the system of human rights.
  17. McQueen, K.: Ethical issues of knowledge organization in designing a metadata schema for the Leo Kottke Archives (2015) 0.04 
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    Date
    27.11.2015 19:22:48
  18. Martin, K.E.; Mundle, K.: Positioning libraries for a new bibliographic universe (2014) 0.04 
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    10. 9.2000 17:38:22
  19. Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017) 0.04 
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    Abstract
    Information searching in practice seldom is an end in itself. In work, work task (WT) performance forms the context, which information searching should serve. Therefore, information retrieval (IR) systems development/evaluation should take the WT context into account. The present paper analyzes how WT features: task complexity and task types, affect information searching in authentic work: the types of information needs, search processes, and search media. We collected data on 22 information professionals in authentic work situations in three organization types: city administration, universities, and companies. The data comprise 286 WTs and 420 search tasks (STs). The data include transaction logs, video recordings, daily questionnaires, interviews. and observation. The data were analyzed quantitatively. Even if the participants used a range of search media, most STs were simple throughout the data, and up to 42% of WTs did not include searching. WT's effects on STs are not straightforward: different WT types react differently to WT complexity. Due to the simplicity of authentic searching, the WT/ST types in interactive IR experiments should be reconsidered.
  20. Wartburg, K. von; Sibille, C.; Aliverti, C.: Metadata collaboration between the Swiss National Library and research institutions in the field of Swiss historiography (2019) 0.04 
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    Date
    30. 5.2019 19:22:49

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