The invention belongs to the cross technical field of
artificial intelligence and decision support systems, and discloses an
intelligent decision support method based on a dynamic
knowledge graph and multi-
modal fusion, which comprises the steps of 1, acquiring and preprocessing multi-source heterogeneous
original data, 2, constructing and updating the dynamic
knowledge graph, carrying out multi-
modal fusion, outputting multi-
modal fusion features, and 3, carrying out multi-modal fusion on the multi-modal fusion features. The method comprises the following steps of: 1, obtaining a multi-modal fusion feature and a
knowledge graph embedding matrix, 2, receiving the multi-modal fusion feature and the knowledge
graph embedding matrix, and outputting a candidate decision path set, decision probability distribution and a state value, 4, outputting dual uncertainty of each path by an
uncertainty estimation module, 5, calculating a comprehensive reward of each path, 6, carrying out meta
reinforcement learning and strategy optimization, and 7, carrying out multi-modal fusion. And step 7, outputting a final decision result, an uncertainty evaluation report and an interpretable reasoning path, and completing the decision. According to the method, the defects in the prior art are effectively overcome, and more accurate, reliable and explainable decision support is provided for a complex scene.