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1 import rdflib
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2 from rdflib import Graph, RDF, RDFS, plugin, URIRef, Literal, OWL, Namespace
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3
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4 basedir = '/Users/alo/MusicOntology/features/'
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5
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6 local = 'http://sovarr.c4dm.eecs.qmul.ac.uk/features/'
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7
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8 DC = Namespace(u"http://purl.org/dc/elements/1.1/")
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9
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10 graph = Graph()
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11 graph.bind('af', URIRef(local))
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12 graph.bind('dc', URIRef('http://purl.org/dc/elements/1.1/'))
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13 graph.bind('owl', URIRef('http://www.w3.org/2002/07/owl#'))
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14
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15 graph.add((
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16 URIRef(''),
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17 RDF.type,
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18 OWL.Ontology
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19 ))
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20
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21 graph.add((
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22 URIRef(''),
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23 DC['title'],
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24 Literal("Marsyas Ontology")
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25 ))
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26
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27 graph.add((
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28 URIRef(''),
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29 OWL.versionInfo,
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30 Literal("Version 0.1")
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31 ))
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32
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33 graph.add((
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34 URIRef(''),
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35 DC['description'],
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36 Literal("This is an ontology derived from Marsyas feature extraction tools for the Audio Features engineering process")
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37 ))
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38
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39
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40 source = Graph()
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41 source.parse(basedir+'rdfonto/af-Marsyas.n3', format='n3')
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42
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43 categories = []
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44
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45 for su, ob in source.subject_objects(URIRef('file:///Users/alo/MusicOntology/features/rdf/type')):
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46 if not ob in categories:
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47 categories.append(ob)
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48
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49 graph.add((
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50 URIRef(local+'Analysis'),
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51 RDF.type,
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52 OWL.Class
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53 ))
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54
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55 for category in categories:
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56 graph.add((
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57 URIRef(local+category),
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58 RDF.type,
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59 OWL.Class
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60 ))
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61 graph.add((
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62 URIRef(local+category),
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63 RDFS.subClassOf,
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64 URIRef(local+'Analysis'),
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65 ))
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66
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67 for su in source.subjects(RDF.type, RDFS.Resource):
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68 idref = URIRef(local+su.split('/')[-1])
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69 # graph.add((
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70 # idref,
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71 # RDF.type,
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72 # OWL.Class
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73 # ))
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74
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75 graph.add((
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76 idref,
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77 RDF.type,
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78 URIRef(local+"AudioFeature")
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79 ))
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80
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81 count = sum(1 for _ in source.objects(su,URIRef('file:///Users/alo/MusicOntology/features/rdf/type')))
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82
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83 if count > 0:
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84 for ob in source.objects(su,URIRef('file:///Users/alo/MusicOntology/features/rdf/type')):
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85 graph.add((
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86 idref,
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87 RDFS.subClassOf,
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88 URIRef(local+ob)
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89 ))
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90 else:
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91 graph.add((
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92 idref,
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93 RDFS.subClassOf,
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94 URIRef(local+'Analysis'),
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95 ))
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96
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97 for ob in source.objects(su,URIRef('http://purl.org/dc/elements/1.1/description')):
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98 graph.add((
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99 idref,
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100 URIRef('http://purl.org/dc/elements/1.1/description'),
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101 ob
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102 ))
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103
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104 graph.serialize(basedir + 'rdfonto/Marsyas-onto.rdf')
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105 graph.serialize(basedir + 'rdfonto/Marsyas-onto.n3', format='n3') |
