ML_ICRITERIA

From VASP Wiki
Revision as of 08:42, 13 September 2022 by Kresse (talk | contribs) (ML_XMIX reference added)

ML_ICRITERIA = [integer]
Default: ML_ICRITERIA = 1 

Description: Decides whether (ML_ICRITERIA>0) or how the Bayesian error threshold (ML_CTIFOR) is updated within the machine learning force field method. ML_CTIFOR determines whether a first principles calculations is performed.


The usage of this tag in combination with the learning algorithms is described here: here.

The following options are possible for ML_ICRITERIA:

  • ML_ICRITERIA = 0: No update of the threshold ML_CTIFOR is done.
  • ML_ICRITERIA = 1: Update of criteria using average of the Bayesian errors of the forces from history (see description of method here).
  • ML_ICRITERIA = 2: Update of criteria using gliding average of Bayesian errors (probably more robust but not well tested).

For the options ML_ICRITERIA = 1 and ML_ICRITERIA = 2, ML_CTIFOR is typically set to the average of previous Bayesian errors. The tag ML_XMIX allows to fine tune how ML_CTIFOR is updated.

Related tags and articles

ML_LMLFF, ML_CTIFOR, ML_CSLOPE, ML_CSIG, ML_MHIS, ML_XMIX

Examples that use this tag