Kun-Ming Yu Chun-Yuan Lin Hui-Yuan Wang Chuan Yi Tang Jiayi Zhou Parallel branch-and-bound approach with MPI technology in inferring chemical compounds with path frequency. 733-738 2009 GrC https://doi.org/10.1109/GRC.2009.5255025 conf/grc/2009 db/conf/grc/grc2009.html#YuLWTZ09