The invention discloses a data sample screening and
reconstruction method in high
nickel matte flotation
process modeling, relates to the technical field of high
nickel matte flotation process
data modeling, and solves the technical problem of data validity in an actual modeling process. The method comprises the following steps: selecting a
system lag parameter p according to the actual process of a high
nickel matte flotation
system, and reconstructing data samples; marking
invalid data; integrating discontinuous data in time, and constructing mutually independent sample data sets; carrying out matrix recombination on the extracted samples, and carrying out RNN modeling. According to the invention, data are preprocessed according to the actual working condition of high nickel matte,
invalid data are removed, and some data blocks which are discontinuous in time are obtained.