1989年 東燃（株）
1995年 東京大学助手（大学院工学系研究科計数工学専攻）
2000年 政策研究大学院大学助教授
2007年 同准教授
2008年 同教授（現在に至る）

?

H. Morohosi, Measuring the network robustness by Monte Carlo estimation of shortest path length distribution, Mathematics and Computers in Simulation, Vol. 81, pp. 551-559, 2010.

Morohosi, Hozumi, "A case study of optimal ambulance location problems,"Operations Research and its Applications (The Sixth International Symposium, ISORA'08 Proceedings), X.-S. Zhang, D.-G. Liu, and L.-Y. Wu (eds.), pp. 125-130, 2008

H. Ashida, H. Morohosi, and T. Oyama, Applying network flow optimization techniques for measuring the robustness of water supply network system in Tokyo, Operations Research and its Applications(The Sixth International Symposium, ISORA'06 Proceedings), X.-S. Zhang, D.-G. Liu, and L.-Y. Wu (eds.), pp. 22-34, World Publishing, 2006.

T. Oyama and H. Morohosi, Applying the shortest-path-counting problem to evaluate the importance of city road segments and the connectedness of the network-structured system, International Transactions in Operations Research, Vol. 11, pp. 555-573, 2004.

H. Morohosi and T. Oyama, Stable connectivity of networks and its Monte Carlo estimation, in Monte Carlo and Quasi-Monte Carlo Methods 2002, H. Niederreiter (eds.), pp. 357-366, Springer-Verlarg, 2004.

H. Morohosi and M. Fushimi, Quasirandom tree method for pricing American style derivatives, J. Operations Research Society of Japan, Vol. 45, No.4, pp. 426-434, 2002.

H. Morohosi and M. Fushimi, Designing asymptotically random GFSR sequences, OR Transactions, Vol. 4, No. 2, pp. 7-18, 2000.

H. Morohosi and M. Fushimi, A practical approach to the error estimation of quasi-Monte Carlo integrations, Monte Carlo and Quasi-Monte Carlo Methods 1998, H. Niederreiter and J. Spanier (eds.), pp. 377-390, Springer, 2000.

?