The invention discloses an intelligent operation and maintenance alarm generation method based on
unsupervised learning, and the method comprises the steps: constructing a dynamic
topological graph which represents all service nodes in a
system and the mutual relation of the service nodes based on operation and maintenance data, and generating a node
state vector which represents the current state of each service node for each service node, the method comprises the following steps: inputting a dynamic
topological graph structure and a node
state vector into a pre-trained time-space diagram neural
network model, calculating an abnormal
score of each service node, and when the abnormal
score exceeds a dynamically determined alarm threshold value, generating an operation and maintenance alarm, and furthermore, improving the reliability of the operation and maintenance alarm. A
root cause node and a
fault propagation path are determined based on time priority and anomaly severity, anomaly
score distribution change is monitored through KL
divergence, and incremental
online learning is carried out; according to the method, the limitation problems of high supervision dependence,
neglect of space-time topology, fixed threshold value and the like in the prior art are solved, the
root cause positioning precision, robustness and generalization capability of alarm are improved, the
false alarm rate and the missing report rate are reduced, and the operation and maintenance efficiency and the real-time performance are improved.