- オペレーションズ・リサーチ (3)
- Fuzzy arithmetic (2)
- Fuzzy numbers (2)
- Decision-making--Congresses (1)
- Fuzzy sets (1)
- Fuzzy sets--Congresses (1)
- Games of strategy (Mathematics) (1)
- Graph theory (1)
- Integer programming (1)
- Mathematical models (1)
- Problem solving--Congresses (1)
- Programming (Mathematics) (1)
- Reliability (Engineering)--Mathematical models (1)
- グラフ理論 (1)
- ファジィ集合 (1)
- ファジイ集合 (1)
- 数学 (1)
- 数理計画法 (1)