{"created":"2022-01-31T07:57:12.373462+00:00","id":2010038,"links":{},"metadata":{"_buckets":{"deposit":"2455e725-fc0d-4373-a483-87ec17745d3e"},"_deposit":{"id":"2010038","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2010038"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02010038","sets":["1642838163960:1642838338003","1642838403551:1642838412624"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"論文海賊サイトSci-Hubを巡る動向と日本における利用実態","subitem_1551255648112":"ja"},{"subitem_1551255647225":"A pirate site Sci-Hub: Recent trend and usage analytics from Japan.","subitem_1551255648112":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大谷, 周平","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"坂東, 慶太","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"Otani, Shuhei","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Bando, Keita","creatorNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Sci-Hub"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Pirate site"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Open Access"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Scholarly Communication"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Sci-Hubとは，6,450万件以上もの学術論文のフルテキスト（全文）を誰もが無料でダウンロードできる論文海賊サイトである。Sci-Hubからダウンロードできる論文には，学術雑誌に掲載された有料論文の約85%が含まれており，Sci-Hubは学術出版社の著作権を侵害する違法サイトである。大学図書館の契約する電子ジャーナル，OAジャーナル，機関リポジトリ，プレプリントサーバーなど法的に問題ない論文サイトが在る中で，世界中から1日に35万件以上の論文がSci-Hubを通じてダウンロードされている。本稿では先ずSci-Hubの概要・仕組み・世界的な動向について述べる。次いで2017年にSci-Hubからダウンロードされた論文のログデータを分析し，国内におけるSci-Hub利用実態の調査結果を報告する。栗山による2016年調査と比較すると，Sci-Hubの利用数やSci-Hubの利用が確認された都市数は増加していた。また，Sci-Hubでダウンロードされているのは有料論文だけではなくOA論文が約20%を占めていること，クッキーの情報から約80%のユーザーは1回のみSci-Hubを利用している状況も明らかになった。","subitem_description_type":"Other"},{"subitem_description":"Sci-Hub is a pirate site for academic articles. Sci-Hub provides more 64 million academic articles for free. About 85% of the articles that can be downloaded for free from Sci-Hub otherwise require paid access. Sci-Hub therefore infringes upon academic publisher’s copyright. Yet despite the existence of legitimate academic article databases, users from around the world download over 350,000 articles each day from Sci-Hub; almost 3,800 of those daily downloads originate in Japan. In this paper, we first outline the trends pertaining to Sci-Hub. Next, we analyze the Sci-Hub download log data from 2017 and investigate the Sci-Hub Usage in Japan. Comparison of the results with Kuriyama’s (2016) survey reveals that the number of downloads and citations confirmed that Sci-Hub use has increased. We revealed that Open Access articles account for about 20% of Sci-Hub downloads and that about 80% of users use Sci-Hub only once by cookie.","subitem_description_type":"Other"},{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"ja","subitem_1522300316516":"情報科学技術協会"},{"subitem_1522300295150":"en","subitem_1522300316516":"Information Science and Technology Association, Japan"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"jpn"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/42525"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"ISSN","subitem_1522646572813":"2189-8278"},{"subitem_1522646500366":"ISSN","subitem_1522646572813":"0913-3801"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_1522650068558":"ja","subitem_1522650091861":"情報の科学と技術"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-10-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicPageEnd":"519","bibliographicPageStart":"513","bibliographicVolumeNumber":"68"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"VoR","subitem_1600292170262":"http://purl.org/coar/version/c_970fb48d4fbd8a85"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_1522306287251":{"subitem_1522306382014":"DOI","subitem_1522306436033":"https://doi.org/10.18919/jkg.68.10_513"}},{"subitem_1522306287251":{"subitem_1522306382014":"DOI","subitem_1522306436033":"https://doi.org/10.18919/jkg.68.10_513"}}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"68_513.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2010038/files/68_513.pdf"},"version_id":"b4216427-a944-485b-b69e-2082543789b3"}]},"item_title":"論文海賊サイトSci-Hubを巡る動向と日本における利用実態","item_type_id":"15","owner":"1","path":["1642838338003","1642838412624"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2018-10-02"},"publish_date":"2018-10-02","publish_status":"0","recid":"2010038","relation_version_is_last":true,"title":["論文海賊サイトSci-Hubを巡る動向と日本における利用実態"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-08-03T05:35:03.207625+00:00"}