{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00209985","sets":["1164:4842:10509:10546"]},"path":["10546"],"owner":"44499","recid":"209985","title":["リレーショナルデータモデル演習システムのための正規化問題生成機能の改良"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-03-06"},"_buckets":{"deposit":"67725b83-4e98-44f6-8063-cc68b5e3992f"},"_deposit":{"id":"209985","pid":{"type":"depid","value":"209985","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"リレーショナルデータモデル演習システムのための正規化問題生成機能の改良","author_link":["530702","530703"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"リレーショナルデータモデル演習システムのための正規化問題生成機能の改良"},{"subitem_title":"Improvement of the normalization question generation function for the relational data model exercise system","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2021-03-06","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"茨城大学"},{"subitem_text_value":"茨城大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Ibaraki University","subitem_text_language":"en"},{"subitem_text_value":"Ibaraki University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/209985/files/IPSJ-CE21159018.pdf","label":"IPSJ-CE21159018.pdf"},"date":[{"dateType":"Available","dateValue":"2023-03-06"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CE21159018.pdf","filesize":[{"value":"772.6 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"19"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"d54662cc-01c8-40b2-bcab-c37d78e197b4","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田島, 新"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岡田, 信一郎"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10096193","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8930","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"情報分野を専門とする者にとってデータベースの基礎理論であるリレーショナルデータモデルの理解は必須といえる．近年は社会のデジタル化への要求が著しく増加しており，リレーショナルデータモデルの学習の重要性はさらに増していくものと考えられる．しかし，データベース初学者にリレーショナルデータモデル，とくに正規化理論を苦手とする者は多い．そこで筆者らは，茨城大学情報工学科の学生を対象にリレーショナルデータモデル演習システムを開発し，実際の授業での運用を行ってきた．このシステムの正規化問題のリレーションはテンプレートを元に自動生成されているが，列間の関数従属性を完全に表現することを目指したため，問題リレーションの行数が多く，学習者の負担になっていることが問題であった．今回は，問題生成テンプレートの見直しにより，同等の問題リレーションを少ない行数で生成することに成功したため，その報告を行う．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"3","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータと教育（CE）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-03-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"18","bibliographicVolumeNumber":"2021-CE-159"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":209985,"updated":"2025-01-19T18:19:09.393569+00:00","links":{},"created":"2025-01-19T01:11:15.709293+00:00"}