{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390001205106959872.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1527/tjsai.e-f43"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/tjsai/31/2/31_E-F43/_pdf"}},{"identifier":{"@type":"NAID","@value":"130005126835"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"ja","@value":"ハブの抑制によるコンパラブルコーパスからの対訳抽出精度の改善"},{"@language":"en","@value":"Reducing Hub Translation Candidates Improves the Accuracy of Bilingual Lexicon Extraction from Comparable Corpora"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Most of the existing approaches to bilingual lexicon extraction (BLE) first map words in source and target languages into a single vector space, and then measure the similarity of words across the two languages in this space. We point out that existing BLE methods suffer from the so-called <i>hubness</i> phenomenon; i.e., a small number of translation candidates (hub candidates) are chosen by the systems as likely translations of many source words, which consequently degrade the accuracy of extracted translations. We show that this phenomenon can be alleviated by centering the data or by using the mutual proximity measure, which are two known techniques that effectively reduce hubness in standard nearest-neighbor search settings. Our empirical evaluation shows that naive nearest-neighbor search combined with these methods outperforms a recently proposed BLE method based on label propagation."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001205106959873","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000019148956"},{"@type":"NRID","@value":"9000414335223"},{"@type":"NRID","@value":"9000315682496"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/yutaro-shigeto"}],"foaf:name":[{"@language":"ja","@value":"重藤 優太郎"},{"@language":"en","@value":"Shigeto Yutaro"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Nara Institute of Science and Technology"},{"@language":"ja","@value":"奈良先端科学技術大学院大学"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801206485888","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"20637730"},{"@type":"NRID","@value":"1000020637730"},{"@type":"NRID","@value":"9000006930746"},{"@type":"NRID","@value":"9000025059324"},{"@type":"NRID","@value":"9000278461978"},{"@type":"NRID","@value":"9000394071557"},{"@type":"NRID","@value":"9000240042984"},{"@type":"NRID","@value":"9000401780440"},{"@type":"NRID","@value":"9000045642740"},{"@type":"NRID","@value":"9000240042949"},{"@type":"NRID","@value":"9000315682497"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/suzuki-ikumi"}],"foaf:name":[{"@language":"ja","@value":"鈴木 郁美"},{"@language":"en","@value":"Suzuki Ikumi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"The Institute of Statistical Mathematics"},{"@language":"ja","@value":"統計数理研究所"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801185201920","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"30467691"},{"@type":"NRID","@value":"1000030467691"},{"@type":"NRID","@value":"9000006345405"},{"@type":"NRID","@value":"9000266893417"},{"@type":"NRID","@value":"9000004266170"},{"@type":"NRID","@value":"9000021053354"},{"@type":"NRID","@value":"9000240042983"},{"@type":"NRID","@value":"9000000184885"},{"@type":"NRID","@value":"9000254966624"},{"@type":"NRID","@value":"9000107384226"},{"@type":"NRID","@value":"9000290138391"},{"@type":"NRID","@value":"9000253168154"},{"@type":"NRID","@value":"9000004786768"},{"@type":"NRID","@value":"9000000607437"},{"@type":"NRID","@value":"9000240042950"},{"@type":"NRID","@value":"9000258631372"},{"@type":"NRID","@value":"9000391639839"},{"@type":"NRID","@value":"9000315682498"},{"@type":"NRID","@value":"9000022073675"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0207238"}],"foaf:name":[{"@language":"ja","@value":"原 一夫"},{"@language":"en","@value":"Hara Kazuo"}],"jpcoar:affiliationName":[{"@language":"en","@value":"National Institute of Genetics"},{"@language":"ja","@value":"国立遺伝学研究所"}]},{"@id":"https://cir.nii.ac.jp/crid/1420001326225878016","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"90311589"},{"@type":"NRID","@value":"1000090311589"},{"@type":"NRID","@value":"9000325470195"},{"@type":"NRID","@value":"9000022152742"},{"@type":"NRID","@value":"9000021053355"},{"@type":"NRID","@value":"9000240042985"},{"@type":"NRID","@value":"9000387299735"},{"@type":"NRID","@value":"9000345321912"},{"@type":"NRID","@value":"9000240042951"},{"@type":"NRID","@value":"9000240042990"},{"@type":"NRID","@value":"9000315682499"},{"@type":"NRID","@value":"9000022073676"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/masashishimbo"}],"foaf:name":[{"@language":"ja","@value":"新保 仁"},{"@language":"en","@value":"Shimbo Masashi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Nara Institute of Science and Technology"},{"@language":"ja","@value":"奈良先端科学技術大学院大学"}]},{"@id":"https://cir.nii.ac.jp/crid/1410001205106959874","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000315682500"}],"foaf:name":[{"@language":"ja","@value":"松本 裕治"},{"@language":"en","@value":"Matsumoto Yuji"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Nara Institute of Science and Technology"},{"@language":"ja","@value":"奈良先端科学技術大学院大学"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13460714"},{"@type":"EISSN","@value":"13468030"}],"prism:publicationName":[{"@language":"en","@value":"Transactions of the Japanese Society for Artificial Intelligence"},{"@language":"ja","@value":"人工知能学会論文誌"},{"@language":"en","@value":"Transactions of the Japanese Society for Artificial Intelligence"},{"@language":"ja","@value":"人工知能学会論文誌"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Society for Artificial Intelligence"},{"@language":"ja","@value":"一般社団法人 人工知能学会"}],"prism:publicationDate":"2016","prism:volume":"31","prism:number":"2","prism:startingPage":"E-F43_1","prism:endingPage":"12"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"https://www.jstage.jst.go.jp/article/tjsai/31/2/31_E-F43/_pdf"}],"availableAt":"2016","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=bilingual%20lexicon%20extraction","dc:title":"bilingual lexicon extraction"},{"@id":"https://cir.nii.ac.jp/all?q=hubness%20phenomenon","dc:title":"hubness phenomenon"},{"@id":"https://cir.nii.ac.jp/all?q=nearest%20neighbor%20search","dc:title":"nearest neighbor search"},{"@id":"https://cir.nii.ac.jp/all?q=bilingual%20lexicon%20extraction","dc:title":"bilingual lexicon extraction"},{"@id":"https://cir.nii.ac.jp/all?q=hubness%20phenomenon","dc:title":"hubness 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