Multi-Granular Discretization for Interpretable Generalization in Precise Cyberattack Identification

Fuente: arXiv
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Main Authors: Chung, Wen-Cheng, Huang, Shu-Ting, Pai, Hao-Ting
Format: Preprint
Published: 2025
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author Chung, Wen-Cheng
Huang, Shu-Ting
Pai, Hao-Ting
author_facet Chung, Wen-Cheng
Huang, Shu-Ting
Pai, Hao-Ting
contents Explainable intrusion detection systems (IDS) are now recognized as essential for mission-critical networks, yet most "XAI" pipelines still bolt an approximate explainer onto an opaque classifier, leaving analysts with partial and sometimes misleading insights. The Interpretable Generalization (IG) mechanism, published in IEEE Transactions on Information Forensics and Security, eliminates that bottleneck by learning coherent patterns - feature combinations unique to benign or malicious traffic - and turning them into fully auditable rules. IG already delivers outstanding precision, recall, and AUC on NSL-KDD, UNSW-NB15, and UKM-IDS20, even when trained on only 10% of the data. To raise precision further without sacrificing transparency, we introduce Multi-Granular Discretization (IG-MD), which represents every continuous feature at several Gaussian-based resolutions. On UKM-IDS20, IG-MD lifts precision by greater than or equal to 4 percentage points across all nine train-test splits while preserving recall approximately equal to 1.0, demonstrating that a single interpretation-ready model can scale across domains without bespoke tuning.
format Preprint
id arxiv_https___arxiv_org_abs_2507_14223
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multi-Granular Discretization for Interpretable Generalization in Precise Cyberattack Identification
Chung, Wen-Cheng
Huang, Shu-Ting
Pai, Hao-Ting
Cryptography and Security
Artificial Intelligence
Explainable intrusion detection systems (IDS) are now recognized as essential for mission-critical networks, yet most "XAI" pipelines still bolt an approximate explainer onto an opaque classifier, leaving analysts with partial and sometimes misleading insights. The Interpretable Generalization (IG) mechanism, published in IEEE Transactions on Information Forensics and Security, eliminates that bottleneck by learning coherent patterns - feature combinations unique to benign or malicious traffic - and turning them into fully auditable rules. IG already delivers outstanding precision, recall, and AUC on NSL-KDD, UNSW-NB15, and UKM-IDS20, even when trained on only 10% of the data. To raise precision further without sacrificing transparency, we introduce Multi-Granular Discretization (IG-MD), which represents every continuous feature at several Gaussian-based resolutions. On UKM-IDS20, IG-MD lifts precision by greater than or equal to 4 percentage points across all nine train-test splits while preserving recall approximately equal to 1.0, demonstrating that a single interpretation-ready model can scale across domains without bespoke tuning.
title Multi-Granular Discretization for Interpretable Generalization in Precise Cyberattack Identification
topic Cryptography and Security
Artificial Intelligence
url https://arxiv.org/abs/2507.14223