TAKAI,Keiji - Faculty of Commerce Department of Commerce Department of Distribution and Marketing

TAKAI, Keiji

Faculty, Department/Institute

Faculty of Commerce Department of Commerce Department of Distribution and Marketing

Academic status (qualification)

Professor Apr. 1,2020

Undergraduate Degrees・University

Osaka University Faculty of Human Science2003 Graduated

Graduate Degrees・University

Osaka University Master's Degree Program 2005 Completed
Osaka University Doctor's Degree Program 2009 Completed

Academic Degrees

Mar. 2009 Osaka University

所属学会・団体名	役職名 (役職在任期間)
Japan Association for Consumer Studies
The Behaviormetric Society of Japan
Japan Statistical Society
KES international

Research Publications

No.	Type of publication	Date of publication (Date of presentation)	Title	Type of research result	Jointly authored or single authored	Publisher and journal name	Volume number
1	Papers1	2018～2018,00,00,,,	On the use of the selection matrix in the maximum like- lihood estimation of normal distribution models with missing data	Academic Journal	Single-Author	Communications in Statistics – Theory and Methods	47,14,3992-3407
2	Papers1	2017～2017,00,00,,,	Finite-sample analysis of impacts of unlabelled data and their labelling mechanisms in linear discriminant analysis		Co-authored	Communications in Statistics : Simulation and Computation　Taylor & Francis	46
3	Papers1	2012～2012,,,,,	Asymptotic inference with incomplete data	Academic Journal	Co-author	Communications in Statistics: Theory and Methods
4	Papers1	2011～2011,,,,,	Analysis of NMAR missing data without specifying missing-data mechanism in a linear latent variate model	Academic Journal	Co-author	Journal of Multivariate Analysis
5	Papers1	2011～2011,,,,,	Constrained EM algorithm with projection method	Academic Journal	Single-Author	Computational Statistics
6	Papers1	2011～2011,,,,,	Finding latent groups of customers via the Poisson mixture regression model	Other	Co-author	IEEE Press, Proceedings of 2011 IEEE International Conference on Systems, Man and Cybernetics
7	Papers1	2010～2010,,,,,	Relation between stay-time and purchase probability with RFID data in a Japanese supermarket	Other	Co-author	Springer, Knowledge-Based and Intelligent Information and Engineering Systems, Lecture Notes in Artificial Intelligence (LNAI)
8	Papers1	2008～2008,,,,,	Test of independence in a 2 × 2 contingency table with nonignorable nonresponse	Academic Journal	Co-author
9	Papers1	,,,,,	Clockwise and anti-clockwise directions of customer orientation in a supermarket: evidence from RFID data	Other	Co-author	Springer, Knowledge-Based and Intelligent Information and Engineering Systems, Lecture Notes in Artificial Intelligence (LNAI)

PapersOn the use of the selection matrix in the maximum like- lihood estimation of normal distribution models with missing dataIn refereedAcademic JournalSingle-AuthorTAKAI,KeijiCommunications in Statistics – Theory and Methods47,14,3992-34072018～

PapersFinite-sample analysis of impacts of unlabelled data and their labelling mechanisms in linear discriminant analysisIn refereedCo-authoredKenichi Hayashi;Keiji TakaiCommunications in Statistics : Simulation and Computation　Taylor & Francis462017～

BookUnrefereedMonographCo-authorTAKAI,Keiji;HOSHINO,Takahiro;NOMA,Hisashi2016/4/19～

PapersIn refereedAcademic JournalCo-authoredTAKAI,Keiji;HAYASHI,KenichiJournal of Statistical Planning and Inference2014～

PapersIn refereedAcademic JournalCo-authoredTAKAI,Keiji;Yada,Katsutoshi2012～

PapersAsymptotic inference with incomplete dataIn refereedAcademic JournalCo-authorKeiji Takai;Yutaka Kano;Communications in Statistics: Theory and Methods2012～

PapersAnalysis of NMAR missing data without specifying missing-data mechanism in a linear latent variate modelIn refereedAcademic JournalCo-authorYutaka Kano;Keiji Takai;Journal of Multivariate Analysis2011～

PapersConstrained EM algorithm with projection methodIn refereedAcademic JournalSingle-AuthorKeiji Takai;;Computational Statistics2011～

PapersFinding latent groups of customers via the Poisson mixture regression modelIn refereedOtherCo-authorKeiji Takai;Katsutoshi Yada;IEEE Press, Proceedings of 2011 IEEE International Conference on Systems, Man and Cybernetics2011～

PapersRelation between stay-time and purchase probability with RFID data in a Japanese supermarketIn refereedOtherCo-authorKeiji Takai;Katsutoshi Yada;Springer, Knowledge-Based and Intelligent Information and Engineering Systems, Lecture Notes in Artificial Intelligence (LNAI)2010～

PapersIn refereedAcademic JournalCo-authorTAKAI,Keiji;2009～

PapersIn refereedAcademic JournalCo-authorKeiji Takai;Yutaka Kano;2009～

PapersTest of independence in a 2 × 2 contingency table with nonignorable nonresponseIn refereedAcademic JournalCo-authorKeiji Takai;Yutaka Kano;;2008～

PapersClockwise and anti-clockwise directions of customer orientation in a supermarket: evidence from RFID dataIn refereedOtherCo-authorMarina Kholod;Keiji Takai;Katsutoshi Yada;Springer, Knowledge-Based and Intelligent Information and Engineering Systems, Lecture Notes in Artificial Intelligence (LNAI)

TAKAI, Keiji