Step 4. Take the first κ P operators {e pre-tested hyper-parameters. In this strategy, only those operators have 'major contributions' are taken into 'batch' sequence, and an upper bound to the size of 'batch' sequence is set. The standard of 'major contributions' are also adaptive so that it varies in different adaptive iterations. Adaptive feature makes the AR-AAs transferable for different molecular systems and applicable under various convergence criteria. This strategy can be briefly stated as follows: