Search (14 results, page 1 of 1)

  • × theme_ss:"Wissensrepräsentation"
  • × type_ss:"a"
  • × type_ss:"el"
  1. Xu, G.; Cao, Y.; Ren, Y.; Li, X.; Feng, Z.: Network security situation awareness based on semantic ontology and user-defined rules for Internet of Things (2017) 0.01 
    0.014032597 = product of:
  0.04209779 = sum of:
    0.04209779 = product of:
      0.12629336 = sum of:
        0.12629336 = weight(_text_:network in 306) [ClassicSimilarity], result of:
          0.12629336 = score(doc=306,freq=14.0), product of:
            0.19402927 = queryWeight, product of:
              4.4533744 = idf(docFreq=1398, maxDocs=44218)
              0.043569047 = queryNorm
            0.6508985 = fieldWeight in 306, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              4.4533744 = idf(docFreq=1398, maxDocs=44218)
              0.0390625 = fieldNorm(doc=306)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Abstract
    Internet of Things (IoT) brings the third development wave of the global information industry which makes users, network and perception devices cooperate more closely. However, if IoT has security problems, it may cause a variety of damage and even threaten human lives and properties. To improve the abilities of monitoring, providing emergency response and predicting the development trend of IoT security, a new paradigm called network security situation awareness (NSSA) is proposed. However, it is limited by its ability to mine and evaluate security situation elements from multi-source heterogeneous network security information. To solve this problem, this paper proposes an IoT network security situation awareness model using situation reasoning method based on semantic ontology and user-defined rules. Ontology technology can provide a unified and formalized description to solve the problem of semantic heterogeneity in the IoT security domain. In this paper, four key sub-domains are proposed to reflect an IoT security situation: context, attack, vulnerability and network flow. Further, user-defined rules can compensate for the limited description ability of ontology, and hence can enhance the reasoning ability of our proposed ontology model. The examples in real IoT scenarios show that the ability of the network security situation awareness that adopts our situation reasoning method is more comprehensive and more powerful reasoning abilities than the traditional NSSA methods. [http://ieeexplore.ieee.org/abstract/document/7999187/]
  2. Griffiths, T.L.; Steyvers, M.: ¬A probabilistic approach to semantic representation (2002) 0.01 
    0.0074879 = product of:
  0.0224637 = sum of:
    0.0224637 = product of:
      0.0673911 = sum of:
        0.0673911 = weight(_text_:29 in 3671) [ClassicSimilarity], result of:
          0.0673911 = score(doc=3671,freq=4.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.43971092 = fieldWeight in 3671, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=3671)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 6.2015 14:55:01
    29. 6.2015 16:09:05
  3. Hoppe, T.: Semantische Filterung : ein Werkzeug zur Steigerung der Effizienz im Wissensmanagement (2013) 0.01 
    0.0052947453 = product of:
  0.015884236 = sum of:
    0.015884236 = product of:
      0.047652703 = sum of:
        0.047652703 = weight(_text_:29 in 2245) [ClassicSimilarity], result of:
          0.047652703 = score(doc=2245,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.31092256 = fieldWeight in 2245, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=2245)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 9.2015 18:56:44
  4. Hauff-Hartig, S.: Wissensrepräsentation durch RDF: Drei angewandte Forschungsbeispiele : Bitte recht vielfältig: Wie Wissensgraphen, Disco und FaBiO Struktur in Mangas und die Humanities bringen (2021) 0.01 
    0.005247115 = product of:
  0.015741345 = sum of:
    0.015741345 = product of:
      0.047224034 = sum of:
        0.047224034 = weight(_text_:22 in 318) [ClassicSimilarity], result of:
          0.047224034 = score(doc=318,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.30952093 = fieldWeight in 318, 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=318)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    22. 5.2021 12:43:05
  5. Rindflesch, T.C.; Aronson, A.R.: Semantic processing in information retrieval (1993) 0.00 
    0.0046329014 = product of:
  0.013898704 = sum of:
    0.013898704 = product of:
      0.041696113 = sum of:
        0.041696113 = weight(_text_:29 in 4121) [ClassicSimilarity], result of:
          0.041696113 = score(doc=4121,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.27205724 = fieldWeight in 4121, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4121)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 6.2015 14:51:28
  6. Assem, M. van; Menken, M.R.; Schreiber, G.; Wielemaker, J.; Wielinga, B.: ¬A method for converting thesauri to RDF/OWL (2004) 0.00 
    0.0046329014 = product of:
  0.013898704 = sum of:
    0.013898704 = product of:
      0.041696113 = sum of:
        0.041696113 = weight(_text_:29 in 4644) [ClassicSimilarity], result of:
          0.041696113 = score(doc=4644,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.27205724 = fieldWeight in 4644, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4644)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 7.2011 14:44:56
  7. Priss, U.: Faceted knowledge representation (1999) 0.00 
    0.004591226 = product of:
  0.013773678 = sum of:
    0.013773678 = product of:
      0.04132103 = sum of:
        0.04132103 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
          0.04132103 = score(doc=2654,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.2708308 = fieldWeight in 2654, 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=2654)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    22. 1.2016 17:30:31
  8. Wielinga, B.; Wielemaker, J.; Schreiber, G.; Assem, M. van: Methods for porting resources to the Semantic Web (2004) 0.00 
    0.003971059 = product of:
  0.011913176 = sum of:
    0.011913176 = product of:
      0.035739526 = sum of:
        0.035739526 = weight(_text_:29 in 4640) [ClassicSimilarity], result of:
          0.035739526 = score(doc=4640,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.23319192 = fieldWeight in 4640, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.046875 = fieldNorm(doc=4640)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 7.2011 14:44:56
  9. Bittner, T.; Donnelly, M.; Winter, S.: Ontology and semantic interoperability (2006) 0.00 
    0.0039353366 = product of:
  0.011806009 = sum of:
    0.011806009 = product of:
      0.035418026 = sum of:
        0.035418026 = weight(_text_:22 in 4820) [ClassicSimilarity], result of:
          0.035418026 = score(doc=4820,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.23214069 = fieldWeight in 4820, 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=4820)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    3.12.2016 18:39:22
  10. Priss, U.: Description logic and faceted knowledge representation (1999) 0.00 
    0.0039353366 = product of:
  0.011806009 = sum of:
    0.011806009 = product of:
      0.035418026 = sum of:
        0.035418026 = weight(_text_:22 in 2655) [ClassicSimilarity], result of:
          0.035418026 = score(doc=2655,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.23214069 = fieldWeight in 2655, 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=2655)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    22. 1.2016 17:30:31
  11. Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008) 0.00 
    0.0039353366 = product of:
  0.011806009 = sum of:
    0.011806009 = product of:
      0.035418026 = sum of:
        0.035418026 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
          0.035418026 = score(doc=3261,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.23214069 = fieldWeight in 3261, 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=3261)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    28.11.2016 12:43:22
  12. Assem, M. van; Rijgersberg, H.; Wigham, M.; Top, J.: Converting and annotating quantitative data tables (2010) 0.00 
    0.003309216 = product of:
  0.009927647 = sum of:
    0.009927647 = product of:
      0.029782942 = sum of:
        0.029782942 = weight(_text_:29 in 4705) [ClassicSimilarity], result of:
          0.029782942 = score(doc=4705,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.19432661 = fieldWeight in 4705, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4705)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 7.2011 14:44:56
  13. Monireh, E.; Sarker, M.K.; Bianchi, F.; Hitzler, P.; Doran, D.; Xie, N.: Reasoning over RDF knowledge bases using deep learning (2018) 0.00 
    0.003279447 = product of:
  0.009838341 = sum of:
    0.009838341 = product of:
      0.029515022 = sum of:
        0.029515022 = weight(_text_:22 in 4553) [ClassicSimilarity], result of:
          0.029515022 = score(doc=4553,freq=2.0), product of:
            0.15257138 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.043569047 = queryNorm
            0.19345059 = fieldWeight in 4553, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4553)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    16.11.2018 14:22:01
  14. Assem, M. van: Converting and integrating vocabularies for the Semantic Web (2010) 0.00 
    0.0026473727 = product of:
  0.007942118 = sum of:
    0.007942118 = product of:
      0.023826351 = sum of:
        0.023826351 = weight(_text_:29 in 4639) [ClassicSimilarity], result of:
          0.023826351 = score(doc=4639,freq=2.0), product of:
            0.15326229 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.043569047 = queryNorm
            0.15546128 = fieldWeight in 4639, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03125 = fieldNorm(doc=4639)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 7.2011 14:44:56

Authors

Years

Languages

  • e 12
  • d 2

Themes