Cigarette formula maintenance method and system based on hybrid collaborative filtering

The invention discloses a cigarette formula maintenance method and system based on hybrid collaborative filtering. The cigarette formula maintenance method comprises the following steps: step S1, generating a binary system formula matrix and a binary system formula vector; step S2, constructing a formula similar matrix and an unblended cigarette similar matrix based on the binary system formula matrix and the binary system formula vector; step S3, obtaining a formula recommendation list according to the formula similar matrix; step S4, calculating a non-primary unblended cigarette set; step S5: heuristically selecting and replacing unblended cigarettes based on the non-primary unblended cigarette set. According to the cigarette formula maintenance method, cigarette formula data is used forcarrying out an experiment and an experiment result proves that the stability of the sensory quality and smoke index of cigarettes with original brands can be maintained in one-to-one replacement andmany-to-many replacement