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1 SP-C Wikipedia Building up Ontologies with Many Properties from Japanese Wikipedia Susumu Tamagawa Takeshi Morita Keio University s [email protected] Aoyama Gakuin University Takahira Yamaguchi Keio University [email protected], keywords: wikipedia, ontology, property, ontology learning Summary Here is discussed how to build up ontologies with many properties from Japanese Wikipedia. The ontologies include is-a relationship (rdfs:subclassof), class-instance relationship (rdf:type) and synonym relation (skos:altlabel) moreover it includes property relations and types. Property relations are triples, property domain (rdfs:domain) and property range (rdfs:range). Property types are object (owl:objectproperty), data (owl:datatypeproperty), symmetric (owl:symmetricproperty), transitive (owl:transitiveproperty), functional (owl:functionalproperty) and inverse functional (owl:inversefunctionalproperty). Experimental case studies show us that the built Japanese Wikipedia Ontology goes better than DBpedia from utility when we use, such as Hub of Linked Data, especially in Japan. 1. WordNet[Bond 09] [ 97] [Buitelaar 05] Web Wikipedia [Nakayama 07] Wikipedia Wikipedia Wikipedia Wikipedia Web Web ( ) RDF Linked Open Data(LOD) LOD RDF Wikipedia DBpedia[Auer 07] RDF DBpedia Wikipedia Wikipedia Infobox Wikipedia LOD Wikipedia

2 Wikipedia 505 ( Infobox Infobox ) (Is-a ) ( Wikipedia ) [ 10] W3C OWL Wikipedia 1 Is-a Infobox Wikipedia 8,000 Infobox 1 2 Wikipedia Wikipedia Wikipedia [ 09] Wikipedia Wikipedia Wikipedia Linked Open Data DBpedia 2 Wikipedia Wikipedia 6 2. Wikipedia DBpedia[Auer 07] Wikipedia RDF Wikipedia Infobox Infobox Infobox Infobox YAGO2[Johannes 10] YAGO WordNet Wikipedia Wikipedia GeoNames 2 wasbornondate islocatedin 100 Fei Wu & Daniel Weld[Fei 08] Wikipedia Infobox Word Net Is-a Infobox Is-a Infobox Infobox Wikipedia Wikipedia Infobox Wikipedia 1 Wikipedia 2 GeoNames:

3 SP-C Wikipedia Wikipedia OWL () OWL 3 RDFS 4 ( ) (1) (2) (rdfs:domain) (3) (rdfs:range) (4) (rdfs:subpropertyof) (5) a (owl:objectproperty) b (owl:datatypeproperty) c (owl:symmetricproperty) d (owl:transitiveproperty e (owl:functionalproperty) f (owl:inversefunctional Property) Wikipedia (1) Infobox (2) 1 Infobox [ 10] Infobox Infobox ) Wikipedia Infobox Wikipedia MediaWiki 1 Genre Infobox 3 4 OWL: RDFS: 1 Infobox Genre 1 owl:objectproperty owl:datatypeproperty 2 40 Infobox Infobox Wikipedia Infobox Infobox % Infobox 2 Wikipedia Wikitext (1) (4) (3) 5 5 (4)

4 Wikipedia (1) (2) (1) (3) (2) ( 5 ) (4) (3) 2 2 Infobox Infobox [ 10] Ruby Infobox 2 (1) (2) Is-a 3 1 Wikipedia Wikipedia Wikipedia ( ) Wikipedia Is-a Is-a Infobox 4

5 SP-C Wikipedia Is-a ( ) Is-a [ 10] 3 4 Wikipedia Infobox Wikipedia Infobox Infobox 1 Infobox Infobox OWL 4 X(n) P (n) Y (n) P (n) Y (n) P (n) X(n) X(n) P (n) Y (n) Y (n) P (n) Z(n) P (n) X(n) P (n) Z(n) P (n) X Y (n) 1 P (n) Y X(n) P (n) X(n) Y (n) P (n) Y (n) P (n) X(n) P (n) P (n) A 6 P (n) X(n)

6 Wikipedia Infobox 5 59,751 owl:objectproperty 36,373 owl:objectproperty 30,042 owl:objectproperty 25,108 owl:datatypeproperty 22,239 owl:objectproperty 6 Y (n) Y (n) Z(n) P (n) X(n) P (n) Z(n) P (n) 6 PS3 PS2 PS2 PS PS3 PS P (n) X(n) Y (n) P (n) X Y (n) P (n) Y X(n) P (n) , ,617 70,839 69,690 66, Wikipedia (jawiki-latestpages-articles.xml) 5 MySQL Java Infobox Wikipedia ,137 1,962,411 Infobox 171,190 1 Infobox 5 2 Wikipedia ,980 2,919, , Infobox 10,769 4,867,882 Infobox 319,742 Infobox 148, Wikipedia :

7 SP-C Infobox 7,137 1,962, , % 3,980 2,919, , % 2 10,769 4,867, , % 2,919,470 1,000 (1) [ 87] (1) N n ˆp 95% % 7 2 4,867, % Infobox [ ˆp 1.96 (1 n N ) ˆp(1 ˆp) n 1 4 2, ˆp+1.96 (1 n N ) ˆp(1 ˆp) n 1 ](1) , ,486 Infobox Infobox 1,888 8,831 82% Infobox 8 9,486 1,000 (1) 95% 95% % 4 26,251 21,140 10,871 10,088 9, ,007 14,053 14,053 1,000 (1) 95% 95% % ,195 20,633 15,956 12,821 11,569

8 Wikipedia Is-a 44,766 43,532 22,175 16,370 12,236 Wikipedia Wikipedia Wikipedia 3 3 Is-a 3,234 35,946 35,946 1,000 (1) 95% 95% % 6 Is-a 5 owl:datatypeproperty (rdfs:literal) Is-a ,262 5,120 4,316 1,886 Is-a 26,209 1,113 9,737 2,121 Is-a 1 Wikipedia Wikipedia 48% 5,120 Infobox 353 Infobox 1,278 3, ,980 Infobox ,322 1,387 1,387

9 SP-C n 8 x 7 8 2,082 1,919 1, ,720 11, % 7 n 7 n % % % % Infobox Infobox Infobox ,867,882 10, , % 8 x 8 x 8 8

10 Wikipedia , Wikipedia Infobox 3 Wikipedia Infobox 3 5 Wikipedia Infobox 3 PS PS2 PS , ,267 2, % owl:datatypeproperty owl:datatypeproperty 3 1 owl:datatypeproperty owl:objectproperty 47, ,670 3, % owl:datatypeproperty

11 SP-C Wikipedia 10,769-4,867,882 DatatypeProperty ,803 ObjectProperty ,746 SymmetricProperty % 21,854 TransitiveProperty 210 0% 1,020 FunctionalProperty 2, % 185,700 InverseFunctionalProperty 3, % 47, Wikipedia 4,867, % Infobox 1,962, % 2,919, % (rdfs:domain) 9, % (rdfs:range) 40, % 14, % Is-a 35, % 1, % DVD 5. Wikipedia Wikipedia 5 1 Wikipedia 9 Wikipedia 10 95% ,769 4,867,882 Infobox 2 94% 9,486 8,831 82% 2 40,262 5,120 48% 90% 57.5% 1,387 owl: Object/DatatypeProperty (owl: SymmetricProperty) (owl:transitiveproperty) (owl:functionalproperty) (owl: InverseFunctionalProperty) Wikipedia Wikipedia Wikipedia RDF DBpedia DBpedia Wikipedia RDF DBpedia Wikipedia Infobox (infobox properties ja.nt,infobox property definitions ja.nt) 6 11 DBpedia Wikipedia DBpedia 200 DBpedia 700 DBpedia wikipageusestemplate 6

12 Wikipedia Wikipedia DBpedia Wiki-Ont DBpedia 10,769 10,034 4,867,882 2,840,553 (rdfs:domain) 9,486 - (rdfs:range) 5, , ,999 DBpedia Infobox wiki Wikipedia Infobox wiki Infobox Wikipedia 1,962,411 DBpedia 100 Wikipedia 8,447 DBpedia 5,056 Wikipedia DBpedia 2.4 DBpedia Infobox Wikipedia Infobox * ObjectProperty + DatatypeProperty 9 Wikipedia DBpedia 12 Wikipedia DBpedia ( ) DBpedia Wikipedia Ryunosuke Akutagawa Chokodo Shujin ( ) Kappa (short story) 9 City of Paris Parisian (person) Paris ( ) Paris (France) 30 9 DBpedia Wikipedia DBpedia Wikipedia 12 DBpedia Wikipedia Wikipedia Wikipedia DBpedia 9 Wikipedia 2 DBpedia 30 Wikipedia 3 13 DBpedia DBpedia yearsun DatatypeProperty Wikipedia DatatypeProperty DatatypeProperty DBpedia Wikipedia DatatypeProperty Wikipedia DBpedia ObjectProperty Wikipedia ObjectProperty Wikipedia

13 SP-C Wikipedia DBpedia DBpedia Wikipedia Genre* * notable works 1915 * birth place*, * children * ( ) relations * death date birth date wikipageusestemplate,imagesize, sans 11,840, ,840,000 km 2 14, ,518km 2 10,540ha alt maxi 130m :130m alt mini 28m :28m maire ( ) cp xprecipmm,xsun,région, 22 69, 17 DBpedia Wikipedia DatatypeProperty ObjectProperty DBpedia Linked Data Wikipedia Linked Data 6. Wikipedia Wikipedia Linked Data Wikipedia Is-a Wikipedia DBpedia Linked Data Wikipedia 68 Wikipedia Wikipedia Linked Data Wikipedia WordNet Wikipedia SourceForge.jp 7 [Auer 07] Soren Auer, Christian Bizer, Georgi Kobilarov, Jens Lehmann, Richard Cyganiak, Zachary Ives: DBpedia: A Nucleus for a Web of Open Data, 6th International Semantic Web Conference, Vol. 4825, pp (2007) [Bond 09] Francis Bond, Hitoshi Isahara, Sanae Fujita, Kiyotaka Uchimoto, Takayuki Kuribayashi and Kyoko Kanzaki: Enhancing the Japanese WordNet, 7th Workshop on Asian Language Resources, pp. 1-8 (2009) [Buitelaar 05] Paul Buitelaar, Philipp Cimiano, Bernardo Magnini (Eds.) Ontology Learning from Text: Methods, Evaluation and Applications, Frontiers in Artificial Intelligence and Applications Series, Vol. 123, IOS Press (2005) [Fei 08] Fei Wu, Daniel S. Weld : Automatically Refining the Wikipedia Infobox Ontology, International World Wide Web Conference 2008, pp (2008) [ 97],,,,,,, :, (1997) [Johannes 10] Johannes Hoffart, Fabian Suchanek, Klaus Berberich, Gerhard Weikum: YAGO2: A Spatially and Temporally Enhanced Knowledge Base from Wikipedia Research Report MPI-I

14 Wikipedia , Max-Planck-Institut für Informatik (2010) [Miller 95] G.A.Miller: WordNet: A Lexical Database for English, ACM, Vol.38, No.11, pp (1995) [Nakayama 07] Nakayama, K., Hara, T. and Nishio, S.: Wikipedia Mining for an Association Web Thesaurus Construction, in Proceedings of International Conference on Web Information Systems Engineering, pp (2007) [ 09],, Erdmann, M.,,,, Wikipedia,, Vol.24, No. 6, pp (2009) [ 10],,,, : Wikipedia,, Vol.25, No. 5, pp (2010) [ 87] :, (1987) [Yokoi 95] T. Yokoi: The EDR Electronic Dictionary, Commun. ACM, Vol. 38, No. 11, pp (1995) Web (DC2) (PD) Web Web AAAI IEEE-CS

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