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1 Ontologie als konkretisierte Darstellung der Wirklichkeit Barry Smith
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2 MeSH Medical Subject Headings National Library of Medicine
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3 What MeSH is for Indexing (Tagging) Medical Literature
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4 MeSH Descriptors Index Medicus Descriptor Anthropology, Education, Sociology and Social Phenomena (MeSH Category) Social Sciences Political Systems National Socialism
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What (bio-)ontologies are for
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6 what molecular function ? what disease process ? need for semantic annotation of data
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7 through labels (nouns, noun phrases) which are algorithmically processable
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9 warum ist die Gene Ontologie so erfolgreich?
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11 natural language tags to make the data cognitively accessible to human beings
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12 compare: legends for maps
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13 or legends for cartoons
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16 ontologies are legends for data
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17 ontologies are legends for images
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18 what brain region ? what brain function ?
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19 x i = vector of measurements of gene i k = the state of the gene ( as “on” or “off”) θ i = set of parameters of the Gaussian model... ontologies are legends for mathematical equations
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20 The Gene Ontology as Integrator MouseEcotope GlyProt DiabetInGene GluChem sphingolipid transporter activity
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21 annotation using common ontologies yields integration of databases MouseEcotope GlyProt DiabetInGene GluChem Holliday junction helicase complex
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22 annotation using common ontologies can yield integration of image data
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23 annotation using common ontologies can support comparison of image data
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24 truth
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25 simple representations can be true
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26 there are true cartoons
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27 a cartoon can be a veridical representation of reality
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28 Cartographic Projection
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29 maps may be correct by reflecting topology, rather than geometry
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30 a fully labeled image can be an even more veridical representation of reality an image can be a veridical representation of reality
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31 cartoons, like maps, always have a certain threshold of granularity
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32 grain resolution
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33 grain resolution serves cognitive accessibility we transform true images into true cartoons
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34 instances vs. types
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35 two kinds of annotations
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36 names of instances
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37 names of types
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38 pathway maps are representations of complexes of types
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39 molecular images and radiographic images are representations of instances
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40 MIAKT system
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45 Patient #47920
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47 Mammography #31667
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48 Mammography #31667 Medical-Image #44922
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49 MRI-Exam #32388 Medical-Image #44922 Mammography #31667 Patient #47920 Breast #1388 Abnormality #86023
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50 There is only one reality but many different representations thereof, including many different ontologies different ontologies can be simultaneously veridical, e.g. because of non-overlapping domains, or because of differential selection (“multi-perspectivalism”)
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51 Reality exists before any representation R And also most structures in reality are there a priori
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52 The ontologist becomes with a mental representation (‘Bild’) R B1B1 Some portions of reality escape his attention.
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53 R a part of which he concretizes in an ontology O1O1 B1B1 #1 both mental representation and ontology refer to the same reality
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54 R A second ontologist makes a different selection O1O1 B2B2 B1B1 O2O2
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55 R Veridical ontologies can always be mapped by taking reality as benchmark O1O1 B2B2 B1B1 O2O2 OmOm
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56 but ontologies can be non- veridical, because of different kinds of errors errors of mismatch with reality errors of understanding errors of coding
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57 Typology of errors (Werner Ceusters)
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58 http://org.buffalo.edu
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