International Conference

1.      Zohreh Khojasteh-Ghamari, Takashi Irohara, The Importance of Downstream Supply Chain in Supply Chain Risk Management: Multi-Objective Optimization, ICIEOM 2018: 20th International Conference on Industrial Engineering and Operations Management, Narita, Japan, April 5-6, 2018

2.      Junko Hosoda and Takashi Irohara, Location Routing Problem with transportation mode options, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS), Yogyakarta, Indonesia, December 3-6, 2017

3.      Takashi Irohara, Heuristics for Chute and Dock Assignment Problem in a Shipping Area of Cross-Docking Center, Institute for the Operations Research and Management Science (INFORMS) Annual meeting, Houston, Texas, USA, Oct.22-25, 2017

4.      Daniel Black and Takashi Irohara, Recourse Actions Within Inventory Systems: The Effect of Customer Service Levels, The Operational Research Society, OR59 Annual Conference, Loughborough, UK, September 12-14, 2017

5.      Zohreh Khojasteh Ghamari, Takashi Irohara, A multi-criteria double sourcing based optimization approach to manage the supply chain risk, 4th International Conference on Industrial Engineering, Management Science and Applications 2017, Seoul, South Korea, June 13th-15th, 2017
DOI 10.1109/ICIMSA.2017.7985576

6.      Wapee Manopiniwes and Takashi Irohara, A Framework to Robust Stochastic Optimization for Humanitarian Logistics, 120th International Conference on Science Technology and Management, Pattaya, Thailand, 10th -11th , January, 2017

7.      Takashi Irohara and Keisuke Nagasawa, An optimization procedure to solve forward-reserve allocation problem with (s, S) policy, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS), Taipei, Taiwan, December 7-10, 2016

8.      Keisuke Nagasawa and Takashi Irohara, Determining order-up-to level considering backorder cost per unit short on the base-stock inventory system under intermittent demand, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS), Taipei, Taiwan, December 7-10, 2016

9.      Wapee Manopiniwes and Takashi Irohara, Temporary Depot Location-Routing in Humanitarian Relief Logistics, 46th Annual Conference Italian Operations Research Society, Trieste, Italy, September 6-9, 2016

10.  Takashi Irohara, Truck scheduling problem to minimize congestion in cross dock warehouse, IEEE International Conference on Automation Science and Engineering(CASE) and IEEE International Symposium on Assembly and Manufacturing(ISAM), Fort Worth, Texas, USA, August 21-24, 2016

11.  Gede Agus Widyadana, Takashi Irohara and Syarif Daniel Budiman, Inventory Routing Problem for Deteriorating Items with Multi Tours, International Conference on Industrial Engineering and Operations Management, Kuala Lumpur, Malaysia, March 8-10, 2016

12.  Hiroshi Okamoto, Takashi Irohara, Hans Ehm and Géraldine Yachi, Transit planning with variable cost reduction for multi product categories in semiconductor industry, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS),  Ho Chi Minh City, Vietnam, December 8-11, 2015

13.  Wapee Manopiniwes and Takashi Irohara, Multi-period humanitarian logistics model considering temporary depot location in flood disaster, The 7th  International Conference on Logistics and Transport (ICLT), Lyon, France, Nov.17-20, 2015

14.  Takashi Irohara, Optimization of the order-up-to and reorder levels for each item in the forward area of warehouse, Institute for the Operations Research and Management Science (INFORMS) Annual meeting, Philadelphia, Pennsylvania, USA, Nov.1-4, 2015

15.  Keisuke Nagasawa and Takashi Irohara, Joint replenishment problem with can-order policies under purchase dependence, 23rd International Conference on Production Research (ICPR), Manila, Philippines, August 2-6, 2015

16.  Takashi Irohara, Yong-Hong Kuo and Janny M.Y. Leung, A Tri-level Programming Model for Disaster Relief Planning based on dual-ascent solution approach, 27th European Conference on Operational Research (EURO XXVII ) Annual Conference, Glasgow, UK, 12-17 July 2015

17.  Wapee Manopiniwes and Takashi Irohara, Integrated relief supply distribution and evacuation: a stochastic approach, 10th International Congress on Logistics and SCM Systems, Chiang Mai, Thailand, July 1-4, 2015

18.  Wapee Manopiniwes and Takashi Irohara, Relief Vehicle Transportation Plan: Thai Flooding Case Study, IIE Annual Conference, Nashville, Tennessee, USA, May 31 – June 3, 2015

19.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Joint replenishment problem with can-order policy under item characteristics, The first East Asia Workshop on Industrial Engineering (EAWIE), Hiroshima, Nov.7-9, 2014

20.  Wapee Manopiniwes, Keisuke Nagasawa and Takashi Irohara, Modeling Facility Locations by Optimizing Time Performance for Humanitarian Relief Logistics, The first East Asia Workshop on Industrial Engineering (EAWIE), Hiroshima, Nov.7-9, 2014

21.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Joint replenishment problem with can-order policies under carrier capacity and correlated demands, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS),  Jeju, Korea, October 12-15, 2014

22.  Wapee Manopiniwes, Keisuke Nagasawa and Takashi Irohara, Optimum Humanitarian Relief Logistics for Facility and Stock Location under Time Restriction: Thai Flooding Case Study, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS),  Jeju, Korea, October 12-15, 2014

23.  Keisuke Nagasawa, Takashi Irohara, Yosuke Matoba and Shuling Liu, Joint replenishment problem with dynamic can-order policies under carrier capacity, 18th International Symposium on Inventories, Budapest, Hungary, August 18-22, 2014

24.  Takashi Irohara, Yong-Hong Kuo and Janny M.Y. Leung, A Tri-level Programming Model for Disaster Preparedness and Relief Planning, 3rd INFORMS Transportation Science and Logistics Society Workshop, Chicago, IL, June 30-July 2, 2014

25.  Takashi Irohara and Hiromasa Akagi, Robust Supply Chain Design Under Uncertainty with Cost Increase Rate, IIE Annual Conference, Montreal, Canada, May 31 – June 3, 2014

26.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Applying genetic algorithm for can-order policies in the joint replenishment problem, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS),  Philippines, December 3-6, 2013

27.  Takashi Irohara, Production scheduling with the consideration of energy consumption per unit time, Institute for the Operations Research and Management Science (INFORMS) Annual meeting, Minneapolis, Minesota, USA, October 6-9, 2013

28.  Takashi Irohara, Yong-Hong Kuo and Janny M.Y. Leung, From Preparedness to Recovery: A Tri-level Programming Model for Disaster Relief Planning, Proceedings  of 4th International Conference on Computational Logistics, ICCL, Copenhagen, Denmark, September 25-27, 2013

29.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Joint replenishment problem in multi-item inventory control with carrier capacity and receiving inspection cost, The 2nd International Conference on Industrial Engineering and Service Science, Surabaya, Indonesia, August 20-22, 2013

30.  Andrew Johnson, Takashi Irohara, Ryoji Tsujiuchi, Extensions and an application of an integrated batching and sequencing model to reduce picker blocking, IIE Annual Conference, San Juan, Puerto Rico, May 18 - 22, 2013

31.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Coordinated replenishment in multi-item inventory control based on important shipping characteristics, Proceedings of the Asia Pacific Industrial Engineering and Management Systems conference (APIEMS),  pp.1986-1994, Thailand, December 2-5, 2012

32.  Takashi Irohara, Vehicle routing problem in consideration of CO2 emissions with a loading ratio, Institute for the Operations Research and Management Science (INFORMS) Annual meeting, Phoenix, AZ, USA, October 14-17, 2012

33.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Deciding ordering policy based on important shipping characteristics from Random forests, International Symposium on Reliability Engineering and Risk Management (ISRERM), Yokohama, Kanagawa, Japan, August 5-8, 2012

34.  Keisuke Nagasawa,  Takashi Irohara, Yosuke Matoba and Shuling Liu, Item  classification and policy selection based on canonical correlation analysis  and regression analysis, IIE Asian Conference, Singapore, June 28-30, 2012

35.  Takashi Irohara and Hideaki Yamashita, A Simulation Study on the Performance of Multiple Load AGVs
, IIE Annual Conference, Orlando, FL, USA, May 19 - 23, 2012

36.  Takashi Irohara and Hideaki Yamashita, Effect of lot splitting with RFID for the trade-off between the material movement and lead time, Institute for the Operations Research and Management Science (INFORMS) annual meeting, Charlotte, NC, USA, November 13-16, 2011

37.  Keisuke Nagasawa, Takashi Irohara, Yosuke Matoba and Shuling Liu, Selecting ordering system and items classification based on canonical correlation and cluster analysis, Asia Pacific Industrial Engineering and Management Science(APIEMS),  Beijing, China, October 14-17, 2011

38.  Yudong Xue, Takashi Irohara, Benjamin Klöpper and Jan-Patrick Pater, CO2 - Emission Aware Pareto Optimization for International Transportation with Time Tables, 21st International Conference on Production Research (ICPR), Stuttgart, Germany, July 31- August 4, 2011

39.  Takashi Irohara, A Heuristic Approach for Solving a Hub Location Problem, IIE Annual Conference (Industrial Engineering Research Conference), Rino, NV, USA, May 21 - 25, 2011

40.  Yudong Xue and Takashi Irohara, A Time-Space Network based International Transportation Scheduling Problem Incorporating CO2 Emission Levels,  Asia Pacific Industrial Engineering and Management Science(APIEMS), Melaka, Malaysia, December 7-10, 2010

41.  Takashi Irohara and Yudong Xue, Multi-objective optimization for transportation problem incorporating CO2 emission levels, Institute for the Operations Research and Management Science (INFORMS), Austin, TX, USA, November 6-11, 2010

42.  Takashi Irohara, A Simulation-based Comparison of Material Handling Systems in Semiconductor Facility, IIE Annual Conference and Expo (Industrial Engineering Research Conference), Cancun, Mexico, June 5 - 9, 2010

43.  Jeongja Jeong and Takashi Irohara, A scheduling based reorder point system with variable lead time in a multi-item production environment, Asia Pacific Industrial Engineering and Management Science(APIEMS), Kitakyushu, Japan, December 14-16, 2009

44.  Takashi Irohara and Naoki Uchida, Lagrangian relaxation for parallel machine scheduling with sequence-dependent set-up times, Institute for the Operations Research and Management Science (INFORMS), San Diego, CA, USA, October 11-14, 2009

45.  Takashi Irohara and Kenta Kakumoto, Optimization Model for Freight Transportation Planning Incorporating CO2 Emission Levels, Institutional Supply Chain Management (ISCM), Xifan, China, 8-10, August, 2009

46.  Takashi Irohara and Tsutomu Araki, Applications of RFID Technology for Improving Merchandise Allocation in an Apparel Retail Store, Institute for the Operations Research and Management Science (INFORMS) International Conference on Service Science (ICSS), Hong Kong, China, 6-8, August, 2009

47.  Kenta Kakumoto and Takashi Irohara, A Heuristic Method for International Transportation Scheduling Problem Incorporating CO2 Emission Levels, 20th International Conference on Production Research (ICPR), Shanghai, China, 2-6 August, 2009

48.  Susumu Fujii, Yosuke Nonogaki, Takashi Irohara and Yuichiro Miyamoto, A Study on Autonomous Distributed Operation of FMS for Small Parts Production, 20th International Conference on Production Research (ICPR), Shanghai, China, 2-6August, 2009

49.  Takashi Irohara, Performance Evaluation of the Multi-floor Pharmaceutical Factories for Solid Dosage, IIE Annual Conference and Expo 2009 (Industrial Engineering Research Conference), Miami, FL, USA, May 30 - June 3, 2009

50.  Takashi Irohara and Kenta Kakumoto, Optimization of International Transportation Scheduling Problem Incorporating CO2 Emission Levels, International Symposium of Case Studies involving Statistics and Operations Research for Decision Making: Solving Human Problems in Business, Society and Scientific Areas, The Institute of Statistical Mathematics, Tokyo, Japan, March 2nd, 2009

51.  Takashi Irohara, Facility layout and buffer allocation for overhead hoist transport in semiconductor fabrication facilities, Asia Pacific Industrial Engineering and Management Science(APIEMS), Indonesia, December 3-5, 2008

52.  Takashi Irohara, Multi-floor Facility Layout Methodology with Location Matrix, Institute for the Operations Research and Management Science (INFORMS), Washington DC, USA, October12-15, 2008

53.  Susumu Fujii, Tomomitsu Motohashi, Takashi Irohara, Yuichiro Miyamoto and Satoko Moriguchi, A Study on Job Shop Scheduling Based on Two-way Auction in Ubiquitous Environment, Advances in Production Management Systems (APMS), Espoo, Finland, September 14-17, 2008

54.  Yosuke Nonogaki, Susumu Fujii, Takashi Irohara, Satoko Moriguchi and Yuichiro Miyamoto, A Study on an auction-based operation for FMS with a single automated vehicle, International Symposium on Flexible Automation, Atlanta, GA, USA, June 23-26, 2008

55.  Takashi Irohara, A Stochastic Facility Layout Problem with Delivery-dispatching Rules for AGV, 10th International Material Handling Research Colloquium (IMHRC), Dortmund, Germany, May 28 – June 2, 2008

56.  Takashi Irohara, Yuta Takahashi, Hybrid flowshop scheduling to minimize total weighted tardiness and earliness with sequence-dependent setup times, IIE Annual Conference and Expo 2008@(Industrial Engineering Research Conference), Vancouver, Canada, May 17-21, 2008

57.  Takashi Irohara, Lagrangian relaxation algorithms for hybrid flow-shop scheduling problems with limited buffers, Asia Pacific Industrial Engineering and Management Science(APIEMS), Kaohsiung, Taiwan, ROC, December 9-12, 2007

58.  Takashi Irohara and Marc Goetschalckx, Decomposition Solution Algorithms for the Multi-Floor Facility Layout Problem with Elevators, 19th International Conference on Production Research (ICPR), Valparaiso, Chile, July 29-August 3, 2007

59.  Takashi Irohara and Marc Goetschalckx, Formulations and Optimal Solution Algorithms for the Multi-Floor Facility Layout Problem with Elevators, IIE Annual Conference and Expo 2007@(Industrial Engineering Research Conference), Nashville, TN, USA, May 19-23, 2007

60.  Koji Watanabe, Kazuya Toizumi and Takashi Irohara, Lagrangian Decomposition and Coordination based Algorithm to Solve an  Unrelated Parallel Machine Scheduling Problem, International Symposium on Flexible Automation, Osaka, Japan, July 10-12, 2006

61.  Takashi Irohara and Takuya Yamada, Simultaneous Design of Block and Detailed Layout based on Location Matrix, 18th International Conference on Production Research (ICPR), Salerno, Italy, July 31-August 4, 2005

62.  Takashi Irohara, Hiroaki Fujikawa and Yutaka Shirai, Multi-storied Facility Layout Problem Considering Initial Cost and Running Cost Simultaneously, 35th International Conference on Computers & Industrial Engineering, Istanbul, Turkey, June 19-22, 2005

63.  Takashi Irohara and Yasuo Mitamura, Lagrangian decomposition and coordination based algorithm to solve a two-stage hybrid flowshop scheduling problem, Asia Pacific Industrial Engineering and Management Science(APIEMS), Brisbane, Australia, December 12-15, 2004

64.  Takashi Irohara, Hirokazu Hayashi and Hiroaki Fujikawa, 3D layout problem to minimize auxiliary machine area and total piping length in semiconductor fabrication facilities, Proceedings of the Pacific Congress on Manufacturing and Management(PCMM), pp.1147-1154, Brisbane, Australia, December 8-10, 2004

65.  Hiroaki Fujikawa and Takashi Irohara, Vehicle Routing Problem with Container Loadings based on Tabu Search", Proceedings of the 1st International Congress on Logistics and SCM systems(ICLS 2004), pp.210-217, Waseda University, Tokyo, Japan, November 21-24, 2004

66.  Takashi Irohara and Takuya Yamada, Location matrix based design methodology for the facility layout problem including aisles and door locations, 8th International Material Handling Research Colloquium (IMHRC), Graz, Austria, June 13-17, 2004

67.  Takashi Irohara, Hideaki Yamashita and Yo Ishizuka, A Stochastic Facility Layout Problem with AGV assignment, 17th International Conference on Production Research (ICPR), Blacksburg, Virginia, USA, August 3-7, 2003

68.  Takashi Irohara, Takuya Yamada, and Hiroaki Fujikawa, Integrated Design Methodology for the Facility Layout and Aisle Structure using Location Matrix, Decision Science Institute 7th International Conference and 8th Annual Meeting of Asia Pacific Decision Science Institute, Shanghai, China, July 4-8, 2003

69.  Takashi Irohara, Hideaki Yamashita and Yo Ishizuka, A Stochastic Facility Layout Problem --- Minimizing Lead Time in Manufacturing Systems with Variable Processing Times, Proceedings of Pacific Congress on Manufacturing and Management(PCMM), pp.630-635, Thailand(Bangkok), Nov.27-29, 2002

70.  Takashi Irohara, Yutaka Shirai and Hiroaki Fujikawa, Multi-Storied Facility Layout Problem considering Column Position and Aisle, Engineering Design and Automation(EDA), Maui, USA, August 4-7, 2002

71.  Takashi Irohara, Hideaki Yamashita and Yo Ishizuka, Facility Layout and Buffer Space Allocation Problems in Production Systems, 16th International Conference on Production Research (ICPR), Prague, Czech Republic", July 29-August 2, 2001

72.  Yo Ishizuka, Takashi Irohara, Osamu Itoh and Hideaki Yamashita, Facility Layout Problems for Maximum Production Efficiency, 16th International Conference on Production Research (ICPR), Prague, Czech Republic", July 29-August 2, 2001

73.  Takashi Irohara and Tatsuya Kai, Multi-floor Facility Layout Technique by Multi-objective Optimization based on the Genetic Algorithm, Engineering Design and Automation(EDA),"Orland, USA",August,2000

74.  Hiroyuki Muramatsu, Takashi Irohara and Kazuho Yoshimoto, A Genetic Algorithm-Based Approach to Cellular Manufacturing Systems Design Problem, 15th International Conference on Production Research (ICPR), Limerick, Ireland, August, 1999

75.  Takashi Irohara, Junya Morita, Kazuho Yoshimoto and Hiroaki Fujikawa, A Heuristic Layout Algorithm for Multiple-floor Facilities, Pacific Congress on Manufacturing and Management (PCMM), Brisbane, Australia, August,1998

76.  Makoto Sugiyama, Weerapat Sessomboon, Takashi Irohara and Kazuho Yoshimoto, A design technique of AGV flow path by considering machine layout, American Society for the Mechanical Engineers, USA, November, 1997

77.  Takashi Irohara and Kazuho Yoshimoto, A Heuristic Algorithm to Solve the Layout Problem of Refinery and Petrochemical Plant, Institute for the Operations Research and Management Science (INFORMS), Dallas, TX, USA, October, 1997

78.  Takashi Irohara, Weerapat Sessomboon and Kazuho Yoshimoto, A Layout Technique Integrating Algorithm for Changing Assignment of Rectangular Departments into Simulated Annealing, Engineering Design and Automation(EDA), Bangkok, Thailand,March,1997

79.  Weerapat Sessomboon, Takashi Irohara and Kazuho Yoshimoto, An Integrated Approach of SA based Heuristics and Simulation for the Design of Unidirectional AGVs with Multiple Criteria, Engineering Design and Automation(EDA), Bangkok, Thailand, March, 1997

80.  Takashi Irohara and Kazuho Yoshimoto, A Simulated Annealing Based Heuristic Algorithm to Solve the Huge Size Rectilinear Facility Layout Problem, Institute for the Operations Research and Management Science (INFORMS), Atlanta, GA, USA, November, 1996

81.  Takashi Irohara and Kazuho Yoshimoto, A Layout Technique to Solve the Rectilinear Facility Layout Problem with Constraints on Department Dimensions, Institute for the Operations Research and Management Science (INFORMS), New Orleans, USA,November,1995

82.  Takashi Irohara and Kazuho Yoshimoto, Development of an Improvement-type Layout Technique for Unequal Department Shapes and Areas, Institute for the Operations Research and Management Science (INFORMS), Detroit, MI, USA, October, 1994