{"created":"2024-03-06T02:44:28.878192+00:00","id":2000145,"links":{},"metadata":{"_buckets":{"deposit":"5bd037ad-95ef-40fc-b156-67529c2d6925"},"_deposit":{"created_by":8,"id":"2000145","owner":"8","owners":[8],"pid":{"revision_id":0,"type":"depid","value":"2000145"},"status":"published"},"_oai":{"id":"oai:jircas.repo.nii.ac.jp:02000145","sets":["1704421711574:1705364364445"]},"author_link":[],"control_number":"2000145","item_30002_access_rights4":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_30002_bibliographic_information29":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-11-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"78","bibliographicPageStart":"65","bibliographicVolumeNumber":"5","bibliographic_titles":[{"bibliographic_title":"JIRCAS Journal","bibliographic_titleLang":"en"}]}]},"item_30002_creator2":{"attribute_name":"作成者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TOGASHI, Kenji","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"REGE, J.E.O.","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"A method for estimating variance and covariance components for both uncensored and censored traits is described. The paper considers two cases: An uncensored trait and a right-censored trait; and two uncensored traits. A multivariate normal distribution is assumed for these traits and Bayesian arguments are employed to derive estimation procedures for dispersion parameters such as genetic variance and environmental variance. Observations are transformed by a Cholesky decomposition of the residual variance-covariance matrix so that residual covariance becomes zero. The residual variance for a right-censored trait and the residual covariance of a right-censored trait and an uncensored trait are estimated by two methods: maximum likelihood (ML) approach and an approximate expectation and maximization (EM) algorithm which is equivalent to restricted maximum likelihood (REML). A numerical example is used to illustrate the steps involved in applying the proposed methods. Comparison of the size of dispersion parameters in both between ML and an approximate EM procedures and between ignoring and accounting for censoring is tested in a numerical example.","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"非打ち切り型データと打ち切り型データとを含む混合モデル式において分散ならびに共分散成分の推定を最尢法とDempsterら(1977,1984)のEMアルゴリズムを拡大しておこなう推定式(概略制限最尢法)を開発した。分散ならびに共分散成分は非打ち切り型データと打ち切切り型データにおいて，2次元正規分布を仮定した上でベイジアン手法により求めた。2つの開発手法の適用例が手法の段階毎に具体的な数値例をもって示された。数値例の中で打ち切り型データを用いた最尢法と概略制限最尢法とによる遺伝分散や遺伝共分散の比較，さらに打ち切り型データの打ち切り点を非打ち切り型データととらえた時の遺伝分散や遺伝共分散の比較も試みた。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_30002_file35":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available"}],"filename":"jircas_journal5-_65-78.pdf","filesize":[{"value":"787KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"jircas_journal5-_65-78","objectType":"fulltext","url":"https://jircas.repo.nii.ac.jp/record/2000145/files/jircas_journal5-_65-78.pdf"},"version_id":"d6d47b52-760a-4b5f-bfec-d89113865a31"}]},"item_30002_identifier_registration17":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.34556/0002000145","subitem_identifier_reg_type":"JaLC"}]},"item_30002_language12":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_30002_publisher10":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Japan International Research Center for Agricultural Sciences","subitem_publisher_language":"en"}]},"item_30002_resource_type13":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_30002_source_identifier22":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"13407686","subitem_source_identifier_type":"PISSN"},{"subitem_source_identifier":"AA11030483","subitem_source_identifier_type":"NCID"}]},"item_30002_subject8":{"attribute_name":"主題","attribute_value_mlt":[{"subitem_subject":"censored data","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"(co)variance estimation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"herd-life","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_30002_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Maximum Likelihood and an Approximate Expectation and Maximization Procedures to Estimate Dispersion Parameters in a Data Set of Combination of Censored and Uncensored Traits","subitem_title_language":"en"},{"subitem_title":"打ち切りおよび非打ち切り型形質の最尢法と概略化した\n制限最尢法による分散成分の推定","subitem_title_language":"ja"}]},"item_30002_version_type15":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_title":"Maximum Likelihood and an Approximate Expectation and Maximization Procedures to Estimate Dispersion Parameters in a Data Set of Combination of Censored and Uncensored Traits","item_type_id":"40039","owner":"8","path":["1705364364445"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-03-06"},"publish_date":"2024-03-06","publish_status":"0","recid":"2000145","relation_version_is_last":true,"title":["Maximum Likelihood and an Approximate Expectation and Maximization Procedures to Estimate Dispersion Parameters in a Data Set of Combination of Censored and Uncensored Traits"],"weko_creator_id":"8","weko_shared_id":-1},"updated":"2024-03-07T05:29:02.024480+00:00"}