Yasuhiko Morimoto

Last Updated :2025/05/09

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor
E-mail
morimohiroshima-u.ac.jp
Self-introduction
I am working on the research of "data mining" to unearth the latent value hidden in data. Data mining was invented in the late 90's by Dr. Rakesh Agrawal, who was a researcher at IBM at the time. Since then, this technology has developed rapidly both as research and as a business, supporting today's AI technology and electronic commerce systems. At that time, I joined the first data mining project in Japan as a researcher at IBM Japan. In particular, we are good at finding patterns including location information and analysis methods that take privacy into consideration.

Basic Information

Academic Degrees

  • Doctor of Engineering, Hiroshima University
  • Master of Engineering, Hiroshima University

Research Fields

  • Informatics;Human informatics;Intelligent informatics

Research Keywords

  • One to One Marketing|Spatial Data Mining
  • Information Retrieval|association rule
  • Recommendation System|Ranking
  • Customer Relationship Management|Privacy
  • Spatio-Temporal Data Mining
  • pathway
  • Mining
  • Search Engine
  • Internet Commerce
  • Database Marketing

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 2Term, Introduction to Information and Data Sciences
  2. 2025, Liberal Arts Education Program1, 1Term, Computer Programming
  3. 2025, Liberal Arts Education Program1, 4Term, Computer Programming
  4. 2025, Undergraduate Education, 1Term, Research Tutorial II
  5. 2025, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  6. 2025, Undergraduate Education, 1Term, Data Mining
  7. 2025, Undergraduate Education, 4Term, Informatics and Data Science Exercise IV
  8. 2025, Undergraduate Education, 1Term, Data Science Seminar I
  9. 2025, Undergraduate Education, 2Term, Data Science Seminar II
  10. 2025, Undergraduate Education, Second Semester, Graduation Thesis
  11. 2025, Graduate Education (Master's Program) , 1Term, Special Exercises on Informatics and Data Science A
  12. 2025, Graduate Education (Master's Program) , 2Term, Special Exercises on Informatics and Data Science A
  13. 2025, Graduate Education (Master's Program) , 3Term, Special Exercises on Informatics and Data Science B
  14. 2025, Graduate Education (Master's Program) , 4Term, Special Exercises on Informatics and Data Science B
  15. 2025, Graduate Education (Master's Program) , Year, Special Study on Informatics and Data Science
  16. 2025, Graduate Education (Master's Program) , 3Term, Data Management
  17. 2025, Graduate Education (Doctoral Program) , Year, Special Study on Informatics and Data Science

Research Activities

Academic Papers

  1. Study on Hybrid Arithmetic for Acceleration of Geometric Algorithms, Transactions of the Japan Society for Industrial and Applied Mathematics, 14(2), 117-150, 20040625
  2. Algorithm for Computing Convex Skyline Objectsets on Numerical Databases, IEICE Trans. Inf. & Syst., 93(10), 2709-2716, 20101001
  3. Recent Progress on Data Mining Technology―Knowledge Discovery from Giant Databases, IPSJ Magazine, 37(7), 597-603, 19960715
  4. Finding optimal intervals using computational geometry, IPSJ SIG Notes, 1995(109), 95-100, 19951117
  5. An object model for an RDB-based object server and its C_<++>interface, 45(0), 111-112, 19920928
  6. An object server based on relatoinal database systems and distributed file systems : overview and application, 49(0), 259-260, 19940920
  7. A multimedia development environment with an object server, 45(0), 109-110, 19920928
  8. A Method of Mapping Data Operations between Objects and Relations, 45(0), 133-134, 19920928
  9. Constructing Decision Trees with Range and Region Splitting : Evaluation of Effectiveness of Region Splitting, IPSJ SIG Notes, 46, 9-16, 19970724
  10. Object Sharing Management in an Object Server, 45(0), 113-114, 19920928
  11. Data Management in an Object Server based on a Relational Database, IPSJ SIG Notes, 1993(45), 93-102, 19930527
  12. Finding Rectilinear Regions for Association Rules from Numeric Data, IPSJ SIG Notes, 1997(68), 17-24, 19970724
  13. Constructing Efficient Decision Trees by Using Optimized Numeric Association Rules, IPSJ SIG Notes, 8, 1-8, 19960726
  14. Efficient Construction of Regression Trees with Range and Region Splitting, IEICE technical report. Artificial intelligence and knowledge-based processing, 97(415), 57-62, 19971202
  15. Efficient Construction of Regression Trees with Range and Region Splitting, IEICE technical report. Data engineering, 97(417), 57-62, 19971202
  16. Credit Risk Manegement by Using Decision Tree with Region Rules, IEICE technical report. Data engineering, 98(316), 1-8, 19981014
  17. Algorithms for Mining Optimal Binary Segmentations for Categorical Attributes, IEICE technical report. Data engineering, 98(316), 83-91, 19981014
  18. Interval Finding and Its Application to Data Mining (Special Section on Discrete Mathematics and Its Applications), IEICE transactions on fundamentals of electronics, communications and computer sciences, 80(4), 620-626, 19970425
  19. Schema Evolution in an Object-Relational System without Reorganizing Database, Proceedings of the IEICE General Conference, 1995(1), 19950327
  20. Data Mining from Integrated Geographic Information System : Mining Frequent Neighboring Class Sets(Data/Text Mining), 12(4), 388-400, 20021225
  21. D-4-9 Algorithm for computing skyline query in distributed database, Proceedings of the IEICE General Conference, 2012(1), 20120306
  22. Continuous k-Dominant Skyline Computation by Using Divide and Conquer Strategy, IPSJ Online Transactions, 3, 97-109, 20100201
  23. k-Dominant Skyline Query Computation in MapReduce Environment, IEICE Trans. Inf. & Syst., 98(5), 1027-1034, 20150501
  24. Recent Progress on Data Mining Technology: Knowledge Discovery from Giant Databases, 37(7), 19960715
  25. An Object Server and Its Applications, 1992(61), 19-28, 19920722
  26. Generic Object in an Object - Oriented Environment, 1991(13), 7-12, 19910207
  27. Data Management in an Object Server based on a Relational Database, 1993(45), 93-102, 19930527
  28. Constructing Efficient Decision Trees by Using Optimized Numeric Association Rules, 1996(72), 1-8, 19960726
  29. Constructing Decision Trees with Range and Region Splitting -Evaluation of Effectiveness of Region Splitting-, 1997(68), 9-16, 19970724
  30. Efficient Selection of Representative Combinations of Objects from Large Database, International Journal on Advances in Software, 8(3/4), 481-490, 2015
  31. Reverse Area Skyline in a Map, INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS, 8(2), 333-343, 2017
  32. An Offline Electronic Payment System Based on an Untraceable Blind Signature Scheme, KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, 11(5), 2628-2645, 2017
    Link to Paper Search Results by DOI
  33. Area Skyline Query for Selecting Good Locations in a Map, Journal of Information Processing, 24(6), 946-955, 2016
  34. PVBMT: A Principal Verb based Approach for English to Bangla Machine Translation, International Journal of Computer Vision and Signal Processing, 6(1), 11-19, 2016
  35. Finding Key Persons on Social Media by Using MapReduce Skyline, International Journal of Networking and Computing, 7(1), 86-104, 201701
  36. Secure Computation of Skyline Query in MapReduce, Springer Lecture Notes in Computer Science (Proceedings of International Conference on Advanced Data Mining and Applications (ADMA)), 10086, 345-360, 201612
  37. An Improved Universal Re-encryption based on Okamoto-Uchiyama Cryptosystem, Proceedings of the The International Conference on Electrical Engineering and Information & Communication Technology (iCEEiCT), 1-5, 2016
  38. A DNA Cryptographic Technique Based on Dynamic DNA Sequence Table, Proceedings of the IEEE International Conference on Computer and Information Technology (ICCIT), 270-275, 201612
  39. A New E-Voting Scheme Based on Revised Simplified Verifiable Re-encryption Mixnet, Proceedings of the IEEE International Conference on Networking Systems and Security (NSysS 2017), 12-20, 201701
  40. Selection of Important Sets by using K-Skyband Query for Sets, INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS, 9(4), 304-313, 2018
  41. An Untraceable Voting Scheme Based on Pairs of Signatures, International Journal of Network Security, 20(4), 774-787, 2018
  42. Secure k-objects Selection for a Keyword Query based on MapReduce Skyline Algorithm, International Journal of Computational Science and Engineering, 16(4), 378-389, 2018
  43. Developing a Method for Detecting Serial and Parallel Components in Programs, Proceedings of the 6th IEEE International Conference on Informatics, Electronics and Vision & the 7th International Symposium in Computational Medical and Health Technology (ICIEV-ISCMHT), 1-7, 2017
  44. Developing a Framework for Recommending TV Shows, Proceedings of the 6th IEEE International Conference on Informatics, Electronics and Vision & the 7th International Symposium in Computational Medical and Health Technology (ICIEV-ISCMHT), 1-7, 2017
  45. A Secure and Efficient Data Transmission Technique using Quantum Key Distribution, Proceedings of the 4th IEEE International Conference on Networking Systems and Security (NSysS), 1-5, 2017
  46. A DNA Cryptographic Technique Based on Dynamic DNA Encoding and Asymmetric Cryptosystem, Proceedings of the 4th IEEE International Conference on Networking Systems and Security (NSysS), 1-8, 2017
  47. Semi-Order Preserving Encryption Technique for Numeric Data to Enhance Privacy, Proceedings of the International Symposium on Computing and Networking (CANDAR), 68-74, 2017
  48. MapReduce-Based Computation of Area Skyline Query for Selecting Good Locations in a Map, Proceedings of the IEEE International Conference on Big Data (IEEE BigData), 4779-4782, 2017
  49. A Novel Encryption Model for Text Messages using Delayed Chaotic Neural Network and DNA Cryptography, Proceedings of the IEEE International Conference on Computer and Information Technology (ICCIT), 1-6, 2017
  50. Early Dementia Detection through Conversations to Virtual Personal Assistant, The 2018 AAAI Spring Symposium Series Technical Report on Beyond Machine Intelligence: Understanding Cognitive Bias and Humanity for Well-Being AI, 198-203, 2018
  51. Hybrid Sensing and Wearable Smart Device for Health Monitoring and Medication: Opportunities and Challenges, The 2018 AAAI Spring Symposium Series Technical Report on Beyond Machine Intelligence: Understanding Cognitive Bias and Humanity for Well-Being AI, 269-274, 2018
  52. Semi-Order Preserving Encryption Technique for Numeric Database, International Journal of Networking and Computing, 9(1), 111-129

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI, 2017, 2019

Social Activities

Organizing Academic Conferences, etc.

  1. Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Program Committee, 2017/04, 2018/03
  2. International Conference on Advanced Data Mining and Applications (ADMA), Program Committee, 2017/04, 2018/03
  3. Asia-Pacific Web Conference (APWeb), Program Committee, 2017/04, 2018/03
  4. International Symposium on Computing and Networking (CANDAR), Program Committee, 2017/04, 2018/03
  5. International Conference on Big Data Analytics and Knowledge Discovery (DaWaK), Program Comittee, 2017/04, 2018/03