{"_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": ["1642838338003", "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", "download_preview_message": "", "file_order": 0, "filename": "68_513.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "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"], "permalink_uri": "http://hdl.handle.net/20.500.12000/42525", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2018-10-02"}, "publish_date": "2018-10-02", "publish_status": "0", "recid": "2010038", "relation": {}, "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_shared_id": -1}