The application discloses a
sewage treatment
water quality monitoring method based on target domain prior fusion source
domain knowledge migration
Gaussian process regression, and belongs to the technical field of
sewage treatment. In view of the problem that rain and
storm samples are scarce and have large distribution difference with sunny day data, the application takes sunny day data as a source domain,
extreme weather data as a target domain, constructs a joint
Gaussian distribution of source domain and target domain output, obtains a target domain prior distribution fusing source domain information through conditional derivation, takes the prior distribution as a
Gaussian process regression prior, and forms a migration
Gaussian process regression model. A small amount of target domain samples are used to optimize model hyperparameters, and for new samples,
water quality index prediction values and uncertainty intervals are output. The application can realize knowledge migration from sunny days to
extreme weather while keeping high precision and
interpretability of the
Gaussian process regression, effectively cope with the sample scarcity and distribution difference problem, and improve rain and
storm day
effluent water quality prediction accuracy.