Search (61 results, page 1 of 4)

  • × theme_ss:"Wissensrepräsentation"
  • × language_ss:"e"
  1. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.05
    0.05378882 = sum of:
      0.035951328 = product of:
        0.14380531 = sum of:
          0.14380531 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
            0.14380531 = score(doc=701,freq=2.0), product of:
              0.3838097 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.045271195 = queryNorm
              0.3746787 = fieldWeight in 701, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.03125 = fieldNorm(doc=701)
        0.25 = coord(1/4)
      0.017837493 = product of:
        0.035674985 = sum of:
          0.035674985 = weight(_text_:x in 701) [ClassicSimilarity], result of:
            0.035674985 = score(doc=701,freq=2.0), product of:
              0.19116588 = queryWeight, product of:
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.045271195 = queryNorm
              0.18661796 = fieldWeight in 701, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.03125 = fieldNorm(doc=701)
        0.5 = coord(1/2)
    
    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
    Type
    x
  2. Xiong, C.: Knowledge based text representations for information retrieval (2016) 0.05
    0.05378882 = sum of:
      0.035951328 = product of:
        0.14380531 = sum of:
          0.14380531 = weight(_text_:3a in 5820) [ClassicSimilarity], result of:
            0.14380531 = score(doc=5820,freq=2.0), product of:
              0.3838097 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.045271195 = queryNorm
              0.3746787 = fieldWeight in 5820, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.03125 = fieldNorm(doc=5820)
        0.25 = coord(1/4)
      0.017837493 = product of:
        0.035674985 = sum of:
          0.035674985 = weight(_text_:x in 5820) [ClassicSimilarity], result of:
            0.035674985 = score(doc=5820,freq=2.0), product of:
              0.19116588 = queryWeight, product of:
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.045271195 = queryNorm
              0.18661796 = fieldWeight in 5820, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.03125 = fieldNorm(doc=5820)
        0.5 = coord(1/2)
    
    Content
    Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.
    Type
    x
  3. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.04
    0.035185993 = product of:
      0.070371985 = sum of:
        0.070371985 = sum of:
          0.035674985 = weight(_text_:x in 2654) [ClassicSimilarity], result of:
            0.035674985 = score(doc=2654,freq=2.0), product of:
              0.19116588 = queryWeight, product of:
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.045271195 = queryNorm
              0.18661796 = fieldWeight in 2654, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.03125 = fieldNorm(doc=2654)
          0.034697004 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
            0.034697004 = score(doc=2654,freq=4.0), product of:
              0.15853201 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045271195 = queryNorm
              0.21886435 = fieldWeight in 2654, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=2654)
      0.5 = coord(1/2)
    
    Abstract
    In order to transfer the Chinese Classified Thesaurus (CCT) into a machine-processable format and provide CCT-based Web services, a pilot study has been conducted in which a variety of selected CCT classes and mapped thesaurus entries are encoded with SKOS. OWL and RDFS are also used to encode the same contents for the purposes of feasibility and cost-benefit comparison. CCT is a collected effort led by the National Library of China. It is an integration of the national standards Chinese Library Classification (CLC) 4th edition and Chinese Thesaurus (CT). As a manually created mapping product, CCT provides for each of the classes the corresponding thesaurus terms, and vice versa. The coverage of CCT includes four major clusters: philosophy, social sciences and humanities, natural sciences and technologies, and general works. There are 22 main-classes, 52,992 sub-classes and divisions, 110,837 preferred thesaurus terms, 35,690 entry terms (non-preferred terms), and 59,738 pre-coordinated headings (Chinese Classified Thesaurus, 2005) Major challenges of encoding this large vocabulary comes from its integrated structure. CCT is a result of the combination of two structures (illustrated in Figure 1): a thesaurus that uses ISO-2788 standardized structure and a classification scheme that is basically enumerative, but provides some flexibility for several kinds of synthetic mechanisms Other challenges include the complex relationships caused by differences of granularities of two original schemes and their presentation with various levels of SKOS elements; as well as the diverse coordination of entries due to the use of auxiliary tables and pre-coordinated headings derived from combining classes, subdivisions, and thesaurus terms, which do not correspond to existing unique identifiers. The poster reports the progress, shares the sample SKOS entries, and summarizes problems identified during the SKOS encoding process. Although OWL Lite and OWL Full provide richer expressiveness, the cost-benefit issues and the final purposes of encoding CCT raise questions of using such approaches.
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  4. Wong, W.; Liu, W.; Bennamoun, M.: Ontology learning from text : a look back and into the future (2010) 0.03
    0.031215612 = product of:
      0.062431224 = sum of:
        0.062431224 = product of:
          0.12486245 = sum of:
            0.12486245 = weight(_text_:x in 4733) [ClassicSimilarity], result of:
              0.12486245 = score(doc=4733,freq=8.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.65316284 = fieldWeight in 4733, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4733)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Content
    Pre-publication version für: ACM Computing Surveys, Vol. X, No. X, Article X, Publication date: X 2011.
  5. Kiren, T.: ¬A clustering based indexing technique of modularized ontologies for information retrieval (2017) 0.03
    0.030104738 = product of:
      0.060209475 = sum of:
        0.060209475 = sum of:
          0.035674985 = weight(_text_:x in 4399) [ClassicSimilarity], result of:
            0.035674985 = score(doc=4399,freq=2.0), product of:
              0.19116588 = queryWeight, product of:
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.045271195 = queryNorm
              0.18661796 = fieldWeight in 4399, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.2226825 = idf(docFreq=1761, maxDocs=44218)
                0.03125 = fieldNorm(doc=4399)
          0.024534488 = weight(_text_:22 in 4399) [ClassicSimilarity], result of:
            0.024534488 = score(doc=4399,freq=2.0), product of:
              0.15853201 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045271195 = queryNorm
              0.15476047 = fieldWeight in 4399, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=4399)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    Type
    x
  6. Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019) 0.03
    0.026963497 = product of:
      0.053926993 = sum of:
        0.053926993 = product of:
          0.21570797 = sum of:
            0.21570797 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
              0.21570797 = score(doc=400,freq=2.0), product of:
                0.3838097 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.045271195 = queryNorm
                0.56201804 = fieldWeight in 400, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.046875 = fieldNorm(doc=400)
          0.25 = coord(1/4)
      0.5 = coord(1/2)
    
    Content
    Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
  7. Thomer, A.; Cheng, Y.-Y.; Schneider, J.; Twidale, M.; Ludäscher, B.: Logic-based schema alignment for natural history Mmuseum databases (2017) 0.02
    0.015766267 = product of:
      0.031532533 = sum of:
        0.031532533 = product of:
          0.06306507 = sum of:
            0.06306507 = weight(_text_:x in 4131) [ClassicSimilarity], result of:
              0.06306507 = score(doc=4131,freq=4.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.32989708 = fieldWeight in 4131, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4131)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In natural history museums, knowledge organization systems have gradually been migrated from paper-based catalog ledgers to electronic databases; these databases in turn must be migrated from one platform or software version to another. These migrations are by no means straightforward, particularly when one data schema must be mapped to another-or, when a database has been used in other-than-its-intended manner. There are few tools or methods available to support the necessary work of comparing divergent data schemas. Here we present a proof-of-concept in which we compare two versions of a subset of the Specify 6 data model using Euler/X, a logic-based reasoning tool. Specify 6 is a popular natural history museum database system whose data model has undergone several changes over its lifespan. We use Euler/X to produce visualizations (called "possible worlds") of the different ways that two versions of this data model might be mapped to one another. This proof-of-concept lays groundwork for further approaches that could aid data curators in database migration and maintenance work. It also contributes to research on the unique challenges to knowledge organization within natural history museums, and on the applicability of logic-based approaches to database schema migration or crosswalking.
  8. Seidlmayer, E.: ¬An ontology of digital objects in philosophy : an approach for practical use in research (2018) 0.02
    0.015607806 = product of:
      0.031215612 = sum of:
        0.031215612 = product of:
          0.062431224 = sum of:
            0.062431224 = weight(_text_:x in 5496) [ClassicSimilarity], result of:
              0.062431224 = score(doc=5496,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.32658142 = fieldWeight in 5496, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5496)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    x
  9. Schmitz-Esser, W.: Language of general communication and concept compatibility (1996) 0.02
    0.015334055 = product of:
      0.03066811 = sum of:
        0.03066811 = product of:
          0.06133622 = sum of:
            0.06133622 = weight(_text_:22 in 6089) [ClassicSimilarity], result of:
              0.06133622 = score(doc=6089,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.38690117 = fieldWeight in 6089, 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=6089)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.11-22
  10. Tudhope, D.; Hodge, G.: Terminology registries (2007) 0.02
    0.015334055 = product of:
      0.03066811 = sum of:
        0.03066811 = product of:
          0.06133622 = sum of:
            0.06133622 = weight(_text_:22 in 539) [ClassicSimilarity], result of:
              0.06133622 = score(doc=539,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.38690117 = fieldWeight in 539, 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=539)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    26.12.2011 13:22:07
  11. Li, J.; Zhang, Z.; Li, X.; Chen, H.: Kernel-based learning for biomedical relation extraction (2008) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 1611) [ClassicSimilarity], result of:
              0.053512476 = score(doc=1611,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 1611, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1611)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  12. Tang, X.-B.; Wei Wei, G,-C.L.; Zhu, J.: ¬An inference model of medical insurance fraud detection : based on ontology and SWRL (2017) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 3615) [ClassicSimilarity], result of:
              0.053512476 = score(doc=3615,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 3615, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3615)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  13. Kara, S.: ¬An ontology-based retrieval system using semantic indexing (2012) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 3829) [ClassicSimilarity], result of:
              0.053512476 = score(doc=3829,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 3829, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3829)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    x
  14. Börner, K.: Atlas of knowledge : anyone can map (2015) 0.01
    0.013011377 = product of:
      0.026022755 = sum of:
        0.026022755 = product of:
          0.05204551 = sum of:
            0.05204551 = weight(_text_:22 in 3355) [ClassicSimilarity], result of:
              0.05204551 = score(doc=3355,freq=4.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = 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
  15. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.01
    0.012267244 = product of:
      0.024534488 = sum of:
        0.024534488 = product of:
          0.049068976 = sum of:
            0.049068976 = weight(_text_:22 in 3376) [ClassicSimilarity], result of:
              0.049068976 = score(doc=3376,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.30952093 = fieldWeight in 3376, 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=3376)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    31. 7.2010 16:58:22
  16. OWL Web Ontology Language Test Cases (2004) 0.01
    0.012267244 = product of:
      0.024534488 = sum of:
        0.024534488 = product of:
          0.049068976 = sum of:
            0.049068976 = weight(_text_:22 in 4685) [ClassicSimilarity], result of:
              0.049068976 = score(doc=4685,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.30952093 = fieldWeight in 4685, 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=4685)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 8.2011 13:33:22
  17. Giunchiglia, F.; Villafiorita, A.; Walsh, T.: Theories of abstraction (1997) 0.01
    0.012267244 = product of:
      0.024534488 = sum of:
        0.024534488 = product of:
          0.049068976 = sum of:
            0.049068976 = weight(_text_:22 in 4476) [ClassicSimilarity], result of:
              0.049068976 = score(doc=4476,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.30952093 = fieldWeight in 4476, 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=4476)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    1.10.2018 14:13:22
  18. Jiang, X.; Tan, A.-H.: CRCTOL: a semantic-based domain ontology learning system (2009) 0.01
    0.011148433 = product of:
      0.022296866 = sum of:
        0.022296866 = product of:
          0.044593733 = sum of:
            0.044593733 = weight(_text_:x in 3320) [ClassicSimilarity], result of:
              0.044593733 = score(doc=3320,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.23327245 = fieldWeight in 3320, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3320)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  19. 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
    0.011148433 = product of:
      0.022296866 = sum of:
        0.022296866 = product of:
          0.044593733 = sum of:
            0.044593733 = weight(_text_:x in 306) [ClassicSimilarity], result of:
              0.044593733 = score(doc=306,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.23327245 = fieldWeight in 306, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=306)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  20. Onofri, A.: Concepts in context (2013) 0.01
    0.011036386 = product of:
      0.022072772 = sum of:
        0.022072772 = product of:
          0.044145543 = sum of:
            0.044145543 = weight(_text_:x in 1077) [ClassicSimilarity], result of:
              0.044145543 = score(doc=1077,freq=4.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.23092794 = fieldWeight in 1077, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=1077)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    My thesis discusses two related problems that have taken center stage in the recent literature on concepts: 1) What are the individuation conditions of concepts? Under what conditions is a concept Cv(1) the same concept as a concept Cv(2)? 2) What are the possession conditions of concepts? What conditions must be satisfied for a thinker to have a concept C? The thesis defends a novel account of concepts, which I call "pluralist-contextualist": 1) Pluralism: Different concepts have different kinds of individuation and possession conditions: some concepts are individuated more "coarsely", have less demanding possession conditions and are widely shared, while other concepts are individuated more "finely" and not shared. 2) Contextualism: When a speaker ascribes a propositional attitude to a subject S, or uses his ascription to explain/predict S's behavior, the speaker's intentions in the relevant context determine the correct individuation conditions for the concepts involved in his report. In chapters 1-3 I defend a contextualist, non-Millian theory of propositional attitude ascriptions. Then, I show how contextualism can be used to offer a novel perspective on the problem of concept individuation/possession. More specifically, I employ contextualism to provide a new, more effective argument for Fodor's "publicity principle": if contextualism is true, then certain specific concepts must be shared in order for interpersonally applicable psychological generalizations to be possible. In chapters 4-5 I raise a tension between publicity and another widely endorsed principle, the "Fregean constraint" (FC): subjects who are unaware of certain identity facts and find themselves in so-called "Frege cases" must have distinct concepts for the relevant object x. For instance: the ancient astronomers had distinct concepts (HESPERUS/PHOSPHORUS) for the same object (the planet Venus). First, I examine some leading theories of concepts and argue that they cannot meet both of our constraints at the same time. Then, I offer principled reasons to think that no theory can satisfy (FC) while also respecting publicity. (FC) appears to require a form of holism, on which a concept is individuated by its global inferential role in a subject S and can thus only be shared by someone who has exactly the same inferential dispositions as S. This explains the tension between publicity and (FC), since holism is clearly incompatible with concept shareability. To solve the tension, I suggest adopting my pluralist-contextualist proposal: concepts involved in Frege cases are holistically individuated and not public, while other concepts are more coarsely individuated and widely shared; given this "plurality" of concepts, we will then need contextual factors (speakers' intentions) to "select" the specific concepts to be employed in our intentional generalizations in the relevant contexts. In chapter 6 I develop the view further by contrasting it with some rival accounts. First, I examine a very different kind of pluralism about concepts, which has been recently defended by Daniel Weiskopf, and argue that it is insufficiently radical. Then, I consider the inferentialist accounts defended by authors like Peacocke, Rey and Jackson. Such views, I argue, are committed to an implausible picture of reference determination, on which our inferential dispositions fix the reference of our concepts: this leads to wrong predictions in all those cases of scientific disagreement where two parties have very different inferential dispositions and yet seem to refer to the same natural kind.
    Type
    x

Authors

Years

Types

  • a 41
  • el 15
  • x 13
  • m 2
  • n 1
  • More… Less…