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RELIABILITY OF CREDIT SCORES IN LOAN MANAGEMENT IN A DEVELOPING COUNTRY 发展中国家贷款管理中信用评分的可靠性
Journal of the Operations Research Society of Japan Pub Date : 2023-01-31 DOI: 10.15807/jorsj.66.1
Yoshio Matsuyama, Ryota Fujinuma, Yukiya Suzuki, Jin Yoshimura, Yumi Asahi
{"title":"RELIABILITY OF CREDIT SCORES IN LOAN MANAGEMENT IN A DEVELOPING COUNTRY","authors":"Yoshio Matsuyama, Ryota Fujinuma, Yukiya Suzuki, Jin Yoshimura, Yumi Asahi","doi":"10.15807/jorsj.66.1","DOIUrl":"https://doi.org/10.15807/jorsj.66.1","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45871470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MODELING THE DEFAULT RISK OF CARD LOANS CONSIDERING INDIVIDUAL BEHAVIOR CHARACTERISTICS BASED ON BANK ACCOUNT DEPOSIT AND WITHDRAWAL DATA 基于银行账户存取款数据，考虑个人行为特征的信用卡贷款违约风险建模
Journal of the Operations Research Society of Japan Pub Date : 2023-01-31 DOI: 10.15807/jorsj.66.56
Haruki Kamitake, Norio Hibiki
{"title":"MODELING THE DEFAULT RISK OF CARD LOANS CONSIDERING INDIVIDUAL BEHAVIOR CHARACTERISTICS BASED ON BANK ACCOUNT DEPOSIT AND WITHDRAWAL DATA","authors":"Haruki Kamitake, Norio Hibiki","doi":"10.15807/jorsj.66.56","DOIUrl":"https://doi.org/10.15807/jorsj.66.56","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46646678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LOAD-BALANCED ALGORITHM ON BANDWIDTH CALENDARING PROBLEM 带宽日历问题的负载均衡算法
Journal of the Operations Research Society of Japan Pub Date : 2023-01-31 DOI: 10.15807/jorsj.66.79
R. Matsumura
{"title":"LOAD-BALANCED ALGORITHM ON BANDWIDTH CALENDARING PROBLEM","authors":"R. Matsumura","doi":"10.15807/jorsj.66.79","DOIUrl":"https://doi.org/10.15807/jorsj.66.79","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45851181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TESTING THE IMPACT OF INPUT AND OUTPUT SUBSTITUTABILITY IN NONPARAMETRIC PRODUCTION ANALYSIS: EVIDENCE FROM LIFE INSURANCE INDUSTRY IN INDIA 检验非参数生产分析中投入和产出可替代性的影响:来自印度寿险行业的证据
Journal of the Operations Research Society of Japan Pub Date : 2022-10-31 DOI: 10.15807/jorsj.65.172
Biresh K. Sahoo, A. Mohanty
{"title":"TESTING THE IMPACT OF INPUT AND OUTPUT SUBSTITUTABILITY IN NONPARAMETRIC PRODUCTION ANALYSIS: EVIDENCE FROM LIFE INSURANCE INDUSTRY IN INDIA","authors":"Biresh K. Sahoo, A. Mohanty","doi":"10.15807/jorsj.65.172","DOIUrl":"https://doi.org/10.15807/jorsj.65.172","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41589473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
AN ANALYSIS OF THE EFFECTS OF LOYALTY AND MEASURES FOR CUSTOMERS' PURCHASE AMOUNT IN A DEPARTMENT STORE 百货商店顾客忠诚效应分析及顾客购买量的测度
Journal of the Operations Research Society of Japan Pub Date : 2022-10-31 DOI: 10.15807/jorsj.65.216
Hiroki Yamada
{"title":"AN ANALYSIS OF THE EFFECTS OF LOYALTY AND MEASURES FOR CUSTOMERS' PURCHASE AMOUNT IN A DEPARTMENT STORE","authors":"Hiroki Yamada","doi":"10.15807/jorsj.65.216","DOIUrl":"https://doi.org/10.15807/jorsj.65.216","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46112211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LEVEL-WISE SUBGEOMETRIC CONVERGENCE OF THE LEVEL-INCREMENT TRUNCATION APPROXIMATION OF M/G/1-TYPE MARKOV CHAINS M/G/1-型马尔可夫链的级增量截断逼近的级次几何收敛性
Journal of the Operations Research Society of Japan Pub Date : 2022-08-12 DOI: 10.15807/jorsj.65.198
Katsuhisa Ouchi, H. Masuyama
{"title":"LEVEL-WISE SUBGEOMETRIC CONVERGENCE OF THE LEVEL-INCREMENT TRUNCATION APPROXIMATION OF M/G/1-TYPE MARKOV CHAINS","authors":"Katsuhisa Ouchi, H. Masuyama","doi":"10.15807/jorsj.65.198","DOIUrl":"https://doi.org/10.15807/jorsj.65.198","url":null,"abstract":"This paper considers the level-increment (LI) truncation approximation of M/G/1-type Markov chains. The LI truncation approximation is useful for implementing the M/G/1 paradigm, which is the framework for computing the stationary distribution of M/G/1-type Markov chains. The main result of this paper is a subgeometric convergence formula for the total variation distance between the original stationary distribution and its LI truncation approximation. Suppose that the equilibrium level-increment distribution is subexponential, and that the downward transition matrix is rank one. We then show that the convergence rate of the total variation error of the LI truncation approximation is equal to that of the tail of the equilibrium level-increment distribution and that of the tail of the original stationary distribution.","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44305763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
OPTIMAL AIR CONDITIONER CONFIGURATION USING SPARSE ESTIMATION AND EXTREME STATISTICS 利用稀疏估计和极值统计量优化空调配置
Journal of the Operations Research Society of Japan Pub Date : 2022-07-31 DOI: 10.15807/jorsj.65.138
Haruki Inoue, Yuta Izumi, Hiroshi Morita
{"title":"OPTIMAL AIR CONDITIONER CONFIGURATION USING SPARSE ESTIMATION AND EXTREME STATISTICS","authors":"Haruki Inoue, Yuta Izumi, Hiroshi Morita","doi":"10.15807/jorsj.65.138","DOIUrl":"https://doi.org/10.15807/jorsj.65.138","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44881098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ANNEALING-BASED ALGORITHM FOR SOLVING CVP AND SVP 基于退火的CVP和SVP求解算法
Journal of the Operations Research Society of Japan Pub Date : 2022-07-31 DOI: 10.15807/jorsj.65.121
Junpei Yamaguchi, Toshiya Shimizu, Kazuyoshi Furukawa, Ryuichi Ohori, Takeshi Shimoyama, Avradip Mandal, H. Montgomery, Arnab Roy, Ohwa Takuya
{"title":"ANNEALING-BASED ALGORITHM FOR SOLVING CVP AND SVP","authors":"Junpei Yamaguchi, Toshiya Shimizu, Kazuyoshi Furukawa, Ryuichi Ohori, Takeshi Shimoyama, Avradip Mandal, H. Montgomery, Arnab Roy, Ohwa Takuya","doi":"10.15807/jorsj.65.121","DOIUrl":"https://doi.org/10.15807/jorsj.65.121","url":null,"abstract":"","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47795701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
CHARACTERIZATION OF SOLUTIONS FOR BICOOPERATIVE GAMES BY USING REPRESENTATION THEORY 用表示理论刻画双合作对策的解
Journal of the Operations Research Society of Japan Pub Date : 2022-04-30 DOI: 10.15807/jorsj.65.76
Masaki Saito, Y. Kusunoki
{"title":"CHARACTERIZATION OF SOLUTIONS FOR BICOOPERATIVE GAMES BY USING REPRESENTATION THEORY","authors":"Masaki Saito, Y. Kusunoki","doi":"10.15807/jorsj.65.76","DOIUrl":"https://doi.org/10.15807/jorsj.65.76","url":null,"abstract":"When analyzing solutions for bicooperative games as well as classical cooperative games, traditional approaches regard both of games and payoff vectors as linear spaces, but in this paper, we present another approach to analyze solutions from the viewpoint of representation of the symmetric group. First, we regard the space of games as a representation of the symmetric group. Then, by using tools of representation theory, we obtain a decomposition of the space and specify useful subrepresentations. Exploiting this decomposition, we show an explicit formula of linear symmetric solutions. Additionally, we also show expressions of linear symmetric solutions restricted by parts of the axioms of the Shapley value for bicooperative games.","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43560484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-Objective Decision Making Problems with Variable Domination Structure 具有可变支配结构的多目标决策问题
Journal of the Operations Research Society of Japan Pub Date : 2022-04-30 DOI: 10.15807/jorsj.65.105
Bettina Zargini
{"title":"Multi-Objective Decision Making Problems with Variable Domination Structure","authors":"Bettina Zargini","doi":"10.15807/jorsj.65.105","DOIUrl":"https://doi.org/10.15807/jorsj.65.105","url":null,"abstract":"In this study, we investigate multi-objective decision making problems with respect to a variable domination structure. In order to solve such problems, we introduce two types of solutions from vector optimization problems with respect to a variable domination structure; afterward, we characterize them. These solution concepts are helpful in multi-objective decision making problems where different preferences or restrictions of objective functions for different alternatives are at hand; or where different preferences of objective functions with respect to different objective functions are assumed. These solution concepts are proposed for multi-objective location problems where there are different preferences of objective functions at each location; our results are applied for selecting a location to establish an outlet store.","PeriodicalId":51107,"journal":{"name":"Journal of the Operations Research Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41726637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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