Hi Takuto Ikuta,
Sorry I contacted you this way.
Are you published a paper“Integer Programming Approach for Directed Minimum Spanning Tree Problem on Temporal Graphs”? It was published in 2016. If yes, I may need your help. I was studying this paper, however, I met some problems when trying to implement algorithm in this paper, could you send me the necessary information such as sofeware and dataset? My e-mail: xxxzhilei@gmail.com. Thanks!
Best wishes!
Zhilei Xu,
2020.01.13