| 2008 |
| 9 | EE | Yumiko Nara:
A Cross-Cultural Study on Attitudes toward Risk, Safety and Security.
KES (2) 2008: 734-741 |
| 2007 |
| 8 | EE | Yumiko Nara:
Information Literacy and Everyday Life Risks.
KES (2) 2007: 942-949 |
| 2006 |
| 7 | EE | Yumiko Nara:
Trust, Ethics and Social Capital on the Internet: An Empirical Study Between Japan, USA and Singapore.
KES (3) 2006: 64-75 |
| 2005 |
| 6 | EE | Yumiko Nara:
Trust and Information-Taking Behavior in the Web Community.
KES (4) 2005: 839-847 |
| 2004 |
| 5 | EE | Yumiko Nara,
Yukio Ohsawa:
Exploring Collaboration Topics from Documented Foresights of Experts.
KES 2004: 823-830 |
| 2003 |
| 4 | | Yumiko Nara,
Yukio Ohsawa:
Application to Questionnaire Analysis.
Chance Discovery 2003: 351-366 |
| 3 | EE | Yukio Ohsawa,
Yumiko Nara:
Decision Process Modeling across Internet and Real World by Double Helical Model of Chance Discovery.
New Generation Comput. 21(2): (2003) |
| 2001 |
| 2 | EE | Yukio Ohsawa,
Yumiko Nara:
Action Proposal as Discovery of Context.
JSAI Workshops 2001: 481-485 |
| 2000 |
| 1 | EE | Yumiko Nara,
Yukio Ohsawa:
Tools for shifting human context into disasters: a case-based guideline for computer-aided earthquake proofs.
KES 2000: 655-658 |