A risk-sensitive stochastic control approach to an optimal investment problem with partial information. - Hiroaki Hata; Yasunari Iida (Finance Stochastics, 2006)

On the Hamilton-Jacobi-Bellman Equation for an Optimal Consumption Problem: I. Existence of Solution. - Hiroaki Hata; Shuenn-Jyi Sheu (SIAM J. Control. Optim., 2012)

On the Hamilton-Jacobi-Bellman Equation for an Optimal Consumption Problem: II. Verification Theorem. - Hiroaki Hata; Shuenn-Jyi Sheu (SIAM J. Control. Optim., 2012)

A study of requirements for SDN switch platform. - Hiroaki Hata (ISPACS, 2013)

A bridging VPN for connecting wireless sensor networks to data centers. - Hiroaki Hata (J. Reliab. Intell. Environ., 2017)

An Optimal Consumption Problem for General Factor Models. - Hiroaki Hata; Hideo Nagai; Shuenn-Jyi Sheu (SIAM J. Control. Optim., 2018)

A MAC Address Routing VPN Architecture for Connecting Non-IP Wireless Sensor Networks to Data Centers. - Hiroaki Hata (IEICE Trans. Commun., 2019)

A Phone Scam Repulsion Device and its Extension to Personal Life Assistance Applications. - Hiroaki Hata (ICCE, 2025)