Search (46 results, page 1 of 3)

  • × year_i:[2010 TO 2020}
  • × type_ss:"m"
  1. Call, A.; Gottlob, G.; Pieris, A.: ¬The return of the entity-relationship model : ontological query answering (2012) 0.05 
    0.045302536 = product of:
  0.09060507 = sum of:
    0.09060507 = product of:
      0.18121015 = sum of:
        0.18121015 = weight(_text_:q in 434) [ClassicSimilarity], result of:
          0.18121015 = score(doc=434,freq=6.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.62666684 = fieldWeight in 434, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=434)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The Entity-Relationship (ER) model is a fundamental formalism for conceptual modeling in database design; it was introduced by Chen in his milestone paper, and it is now widely used, being flexible and easily understood by practitioners. With the rise of the Semantic Web, conceptual modeling formalisms have gained importance again as ontology formalisms, in the Semantic Web parlance. Ontologies and conceptual models are aimed at representing, rather than the structure of data, the domain of interest, that is, the fragment of the real world that is being represented by the data and the schema. A prominent formalism for modeling ontologies are Description Logics (DLs), which are decidable fragments of first-order logic, particularly suitable for ontological modeling and querying. In particular, DL ontologies are sets of assertions describing sets of objects and (usually binary) relations among such sets, exactly in the same fashion as the ER model. Recently, research on DLs has been focusing on the problem of answering queries under ontologies, that is, given a query q, an instance B, and an ontology X, answering q under B and amounts to compute the answers that are logically entailed from B by using the assertions of X. In this context, where data size is usually large, a central issue the data complexity of query answering, i.e., the computational complexity with respect to the data set B only, while the ontology X and the query q are fixed.
  2. Gödert, W.; Lepsky, K.: Informationelle Kompetenz : ein humanistischer Entwurf (2019) 0.03 
    0.030679327 = product of:
  0.061358653 = sum of:
    0.061358653 = product of:
      0.24543461 = sum of:
        0.24543461 = weight(_text_:3a in 5955) [ClassicSimilarity], result of:
          0.24543461 = score(doc=5955,freq=2.0), product of:
            0.3743163 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.04415143 = queryNorm
            0.65568775 = fieldWeight in 5955, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5955)
      0.25 = coord(1/4)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Philosophisch-ethische Rezensionen vom 09.11.2019 (Jürgen Czogalla), Unter: https://philosophisch-ethische-rezensionen.de/rezension/Goedert1.html. In: B.I.T. online 23(2020) H.3, S.345-347 (W. Sühl-Strohmenger) [Unter: https%3A%2F%2Fwww.b-i-t-online.de%2Fheft%2F2020-03-rezensionen.pdf&usg=AOvVaw0iY3f_zNcvEjeZ6inHVnOK]. In: Open Password Nr. 805 vom 14.08.2020 (H.-C. Hobohm) [Unter: https://www.password-online.de/?mailpoet_router&endpoint=view_in_browser&action=view&data=WzE0MywiOGI3NjZkZmNkZjQ1IiwwLDAsMTMxLDFd].
  3. Lu, J.; Xu, Q.: Ontologies and big data considerations for effective intelligence (2017) 0.02 
    0.020924343 = product of:
  0.041848686 = sum of:
    0.041848686 = product of:
      0.08369737 = sum of:
        0.08369737 = weight(_text_:q in 3468) [ClassicSimilarity], result of:
          0.08369737 = score(doc=3468,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.28944498 = fieldWeight in 3468, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.03125 = fieldNorm(doc=3468)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  4. Grundlagen der praktischen Information und Dokumentation : Handbuch zur Einführung in die Informationswissenschaft und -praxis (2013) 0.02 
    0.018308802 = product of:
  0.036617603 = sum of:
    0.036617603 = product of:
      0.07323521 = sum of:
        0.07323521 = weight(_text_:q in 4382) [ClassicSimilarity], result of:
          0.07323521 = score(doc=4382,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.25326437 = fieldWeight in 4382, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.02734375 = fieldNorm(doc=4382)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Footnote
    Auch als eBook; vgl.: http://www.degruyter.com/view/product/174371?rskey=Hzo8Fb&result=3&q=kuhlen. Rez. in: iwp 64(2013) H.6, S.375-377 (U. Herb); Mitt VOEB 66(2013) H.3/4, S.681-686 (C. Schlögl); BuB 66(2014) H.2, S.150-152 (J. Bertram)
  5. EndNote X7 : bibliographies made easy [= Version 17] (2013) 0.02 
    0.017945727 = product of:
  0.035891455 = sum of:
    0.035891455 = product of:
      0.07178291 = sum of:
        0.07178291 = weight(_text_:22 in 1808) [ClassicSimilarity], result of:
          0.07178291 = score(doc=1808,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.46428138 = fieldWeight in 1808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=1808)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    17. 9.2018 18:19:22
  6. Knowledge organization in the 21st century : between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland (2014) 0.02 
    0.017945727 = product of:
  0.035891455 = sum of:
    0.035891455 = product of:
      0.07178291 = sum of:
        0.07178291 = weight(_text_:22 in 4693) [ClassicSimilarity], result of:
          0.07178291 = score(doc=4693,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.46428138 = fieldWeight in 4693, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=4693)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  7. Ford, N.: Introduction to information behaviour (2015) 0.01 
    0.014954773 = product of:
  0.029909546 = sum of:
    0.029909546 = product of:
      0.05981909 = sum of:
        0.05981909 = weight(_text_:22 in 3341) [ClassicSimilarity], result of:
          0.05981909 = score(doc=3341,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.38690117 = fieldWeight in 3341, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3341)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 1.2017 16:45:48
  8. Schmidt, J.C.: ¬Das Andere der Natur : neue Wege zur Naturphilosophie (2015) 0.01 
    0.01480447 = product of:
  0.02960894 = sum of:
    0.02960894 = product of:
      0.05921788 = sum of:
        0.05921788 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
          0.05921788 = score(doc=3103,freq=4.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.38301262 = fieldWeight in 3103, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3103)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    28. 9.2016 18:22:22
  9. Börner, K.: Atlas of knowledge : anyone can map (2015) 0.01 
    0.012689547 = product of:
  0.025379093 = sum of:
    0.025379093 = product of:
      0.050758187 = sum of:
        0.050758187 = weight(_text_:22 in 3355) [ClassicSimilarity], result of:
          0.050758187 = score(doc=3355,freq=4.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.32829654 = fieldWeight in 3355, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=3355)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 1.2017 16:54:03
    22. 1.2017 17:10:56
  10. Scholarly metrics under the microscope : from citation analysis to academic auditing (2015) 0.01 
    0.011963818 = product of:
  0.023927636 = sum of:
    0.023927636 = product of:
      0.047855273 = sum of:
        0.047855273 = weight(_text_:22 in 4654) [ClassicSimilarity], result of:
          0.047855273 = score(doc=4654,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.30952093 = fieldWeight in 4654, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=4654)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 1.2017 17:12:50
  11. Linde, F.; Stock, W.G.: Informationsmarkt : Informationen im I-Commerce anbieten und nachfragen (2011) 0.01 
    0.011963818 = product of:
  0.023927636 = sum of:
    0.023927636 = product of:
      0.047855273 = sum of:
        0.047855273 = weight(_text_:22 in 291) [ClassicSimilarity], result of:
          0.047855273 = score(doc=291,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.30952093 = fieldWeight in 291, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=291)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    23. 9.2010 11:15:22
  12. Lembke, G.; Leipner, I.: ¬Die Lüge der digitalen Bildung : warum unsere Kinder das Lernen verlernen (2018) 0.01 
    0.010574621 = product of:
  0.021149242 = sum of:
    0.021149242 = product of:
      0.042298485 = sum of:
        0.042298485 = weight(_text_:22 in 4319) [ClassicSimilarity], result of:
          0.042298485 = score(doc=4319,freq=4.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.27358043 = fieldWeight in 4319, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4319)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Classification
    MBL 22
    SSD
    MBL 22
  13. Social Media und Web Science : das Web als Lebensraum, Düsseldorf, 22. - 23. März 2012, Proceedings, hrsg. von Marlies Ockenfeld, Isabella Peters und Katrin Weller. DGI, Frankfurt am Main 2012 (2012) 0.01 
    0.0104683405 = product of:
  0.020936681 = sum of:
    0.020936681 = product of:
      0.041873362 = sum of:
        0.041873362 = weight(_text_:22 in 1517) [ClassicSimilarity], result of:
          0.041873362 = score(doc=1517,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.2708308 = fieldWeight in 1517, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1517)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  14. Metadata and semantics research : 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings (2016) 0.01 
    0.0104683405 = product of:
  0.020936681 = sum of:
    0.020936681 = product of:
      0.041873362 = sum of:
        0.041873362 = weight(_text_:22 in 3283) [ClassicSimilarity], result of:
          0.041873362 = score(doc=3283,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.2708308 = fieldWeight in 3283, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3283)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  15. Feustel, R: "Am Anfang war die Information" : Digitalisierung als Religion (2018) 0.01 
    0.0104683405 = product of:
  0.020936681 = sum of:
    0.020936681 = product of:
      0.041873362 = sum of:
        0.041873362 = weight(_text_:22 in 4522) [ClassicSimilarity], result of:
          0.041873362 = score(doc=4522,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.2708308 = fieldWeight in 4522, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4522)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 1.2019 11:22:34
  16. Paradigms and conceptual systems in knowledge organization : Proceedings of the Eleventh International ISKO Conference, 23-26 February 2010 Rome, Italy (2010) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 773) [ClassicSimilarity], result of:
          0.035891455 = score(doc=773,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 773, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=773)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 2.2013 12:09:34
  17. Gödert, W.; Hubrich, J.; Nagelschmidt, M.: Semantic knowledge representation for information retrieval (2014) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 987) [ClassicSimilarity], result of:
          0.035891455 = score(doc=987,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 987, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=987)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    23. 7.2017 13:49:22
  18. Leitfaden zum Forschungsdaten-Management : Handreichungen aus dem WissGrid-Projekt (2013) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 1029) [ClassicSimilarity], result of:
          0.035891455 = score(doc=1029,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 1029, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=1029)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    19.12.2015 11:57:22
  19. Informationswissenschaft zwischen virtueller Infrastruktur und materiellen Lebenswelten : Proceedings des 13. Internationalen Symposiums für Informationswissenschaft (ISI 2013), Potsdam, 19.-22. März 2013. (2013) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 2979) [ClassicSimilarity], result of:
          0.035891455 = score(doc=2979,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 2979, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=2979)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  20. Keyser, P. de: Indexing : from thesauri to the Semantic Web (2012) 0.01 
    0.008972864 = product of:
  0.017945727 = sum of:
    0.017945727 = product of:
      0.035891455 = sum of:
        0.035891455 = weight(_text_:22 in 3197) [ClassicSimilarity], result of:
          0.035891455 = score(doc=3197,freq=2.0), product of:
            0.15461078 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04415143 = queryNorm
            0.23214069 = fieldWeight in 3197, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=3197)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    24. 8.2016 14:03:22

Authors

Languages

  • e 27
  • d 17

Types

Themes

Subjects

Classifications