The invention relates to a method and a device for optimizing a
speech recognition system, and belongs to the technical field of
speech recognition. The method comprises the following steps: building a model which comprises a call layer, a navigation layer and an
interaction layer, wherein the call layer and the navigation layer are correlated, and the navigation layer and the
interaction layer are correlated; getting a
fact table used for multi-dimension multi-index analysis through
specific model processing operation according to the model; calculating the indexes evaluating the ability of the
system through on-line analytical
processing OLAP according to the
fact table, and locating an abnormal factor pulling down the indexes; and removing the abnormal factor to optimize the
system. According to the invention, a model is introduced, a
machine is fully utilized to carry out automatic operation, and analysis can be made through an existing mature
database analysis method. Thus, manpower is saved greatly, and the defects of artificial subjective experience, low efficiency of test under a
complex system, incomplete coverage and ambiguous location are overcome.