The invention relates to the technical field of data fusion, and discloses a multi-source heterogeneous data fusion method and
system based on
edge computing, and the method comprises the steps: obtaining a heterogeneous
data stream, carrying out the
data type recognition and data
feature extraction, and obtaining an original
feature set; according to the original
feature set, unifying feature dimensions and adjusting a time reference to obtain
time sequence vector data; according to the
time sequence vector data, filling the feature value of the missing time point to obtain a multi-
modal feature; performing block storage on the multi-
modal features, verifying the
synchronism of adjacent modals, distributing
modal synchronization weight coefficients, and finally generating a fusion
feature matrix; according to the fused
feature matrix, identifying and filtering redundant feature dimensions, establishing a feature association map, and executing feature merging to obtain a simplified
feature matrix; according to the simplified feature matrix, feature importance scores are calculated, sorting weight coefficients are arranged and distributed in a descending order according to the scores, and a multi-modal fusion
semantic vector is generated. The method improves the accuracy of
data analysis and decision.