A Hybrid Deep Learning Architecture for Network Security Situation Awareness and Pre-Alarm in Large-Scale Data Environments Using LSTM, Autoencoder, and GNN

Abstract

In the large-scale data environment, network security situational awareness (NSSA) often faces the problems of poor real-time performance and low early warning accuracy. Therefore, this article proposes an intelligent early warning model that integrates multi-source heterogeneous data. This model constructs a distributed processing architecture based on Spark+Flink, which integrates a hybrid analysis mechanism of long-term memory network (LSTM), self-encoder and graph neural network (GNN) to efficiently detect abnormal behaviors and infer attack paths. At the same time, a situation scoring mechanism with dynamic weight adjustment is designed, and a time decay suppression strategy is introduced to optimize the alarm output and reduce the false alarm rate. The experiment was conducted on CICIDS2017 public data set and a real log of a provincial government cloud, and evaluated by F1-score, AUC, response delay and effective alarm compression ratio. The results show that the F1-score of this model is 0.93 on CICIDS2017, which is significantly better than the traditional method. In the real government cloud environment, the system throughput is up to 183,000 pieces/second, the average response delay is controlled within 300ms, and the number of effective alarms is reduced by over 65%. This study verifies the feasibility and superiority of the proposed model in high concurrency scenarios, and provides a practical basis for building an intelligent and extensible network security defense system.

Author Biography

Xiaoxia Wang, School of Information and Network Security, Inner Mongolia Police College, Hohhot 010051, China

School of Information and Network Security

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Authors

  • Xiaoxia Wang School of Information and Network Security, Inner Mongolia Police College, Hohhot 010051, China

DOI:

https://doi.org/10.31449/inf.v50i10.12390

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Published

03/18/2026

How to Cite

Wang, X. (2026). A Hybrid Deep Learning Architecture for Network Security Situation Awareness and Pre-Alarm in Large-Scale Data Environments Using LSTM, Autoencoder, and GNN. Informatica, 50(10). https://doi.org/10.31449/inf.v50i10.12390