In the context of China's educational system reform, teachers in higher vocational colleges must change their teaching ideas and actively implement online teaching, so as to make use resources resource library realize a shared, open flexible library, give full play synergy improve effect teaching. This paper focuses on problems existing construction colleges, puts forward corresponding counterm...

Pattern databases (Culberson & Schae er, 1998) or PDBs, have been proven very e ective in creating admissible Heuristics for single-agent search, such as the A*-algorithm. Haslum et. al proposed, a hill-climbing algorithm can be used to construct the PDBs, using the canonical heuristic. A di erent approach would be to change action-costs in the pattern-related abstractions, in order to obtain t...