The invention discloses a marketing
data link abnormity diagnosis method,
system and device and a storage medium. Relates to the technical field of power
system data management. At present, the problems of multi-
source data format difference, lack of real-time
anomaly detection mechanism and low
data management efficiency exist in anomaly diagnosis. The method comprises the steps that multi-source heterogeneous data of a marketing
data link is collected in real time, and data cleaning, missing value filling and abnormal value
processing are completed; extracting statistical characteristics of the
link data, performing clustering analysis on the data, and generating a self-supervision
label; constructing a
support vector machine classification model, and detecting normal and abnormal data in the link; optimizing the
anomaly detection model through a deep neural network; and realizing
interpretability analysis and decision support of anomaly diagnosis by using a multi-
classification result generated by the LSTM model and a self-
supervised learning strategy. According to the invention,
data link abnormity diagnosis is efficiently and intelligently realized, and
data quality management, abnormity detection precision and service decision support capability are improved.