Lightweight Intrusion Detection in IoT via SHAP-Guided Feature Pruning and Knowledge-Distilled Kronecker Networks

Fuente: arXiv
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Main Authors: Benaddi, Hafsa, Jouhari, Mohammed, Laamech, Nouha, Motii, Anas, Ibrahimi, Khalil
Format: Preprint
Published: 2025
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author Benaddi, Hafsa
Jouhari, Mohammed
Laamech, Nouha
Motii, Anas
Ibrahimi, Khalil
author_facet Benaddi, Hafsa
Jouhari, Mohammed
Laamech, Nouha
Motii, Anas
Ibrahimi, Khalil
contents The widespread deployment of Internet of Things (IoT) devices requires intrusion detection systems (IDS) with high accuracy while operating under strict resource constraints. Conventional deep learning IDS are often too large and computationally intensive for edge deployment. We propose a lightweight IDS that combines SHAP-guided feature pruning with knowledge-distilled Kronecker networks. A high-capacity teacher model identifies the most relevant features through SHAP explanations, and a compressed student leverages Kronecker-structured layers to minimize parameters while preserving discriminative inputs. Knowledge distillation transfers softened decision boundaries from teacher to student, improving generalization under compression. Experiments on the TON\_IoT dataset show that the student is nearly three orders of magnitude smaller than the teacher yet sustains macro-F1 above 0.986 with millisecond-level inference latency. The results demonstrate that explainability-driven pruning and structured compression can jointly enable scalable, low-latency, and energy-efficient IDS for heterogeneous IoT environments.
format Preprint
id arxiv_https___arxiv_org_abs_2512_19488
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Lightweight Intrusion Detection in IoT via SHAP-Guided Feature Pruning and Knowledge-Distilled Kronecker Networks
Benaddi, Hafsa
Jouhari, Mohammed
Laamech, Nouha
Motii, Anas
Ibrahimi, Khalil
Machine Learning
Networking and Internet Architecture
The widespread deployment of Internet of Things (IoT) devices requires intrusion detection systems (IDS) with high accuracy while operating under strict resource constraints. Conventional deep learning IDS are often too large and computationally intensive for edge deployment. We propose a lightweight IDS that combines SHAP-guided feature pruning with knowledge-distilled Kronecker networks. A high-capacity teacher model identifies the most relevant features through SHAP explanations, and a compressed student leverages Kronecker-structured layers to minimize parameters while preserving discriminative inputs. Knowledge distillation transfers softened decision boundaries from teacher to student, improving generalization under compression. Experiments on the TON\_IoT dataset show that the student is nearly three orders of magnitude smaller than the teacher yet sustains macro-F1 above 0.986 with millisecond-level inference latency. The results demonstrate that explainability-driven pruning and structured compression can jointly enable scalable, low-latency, and energy-efficient IDS for heterogeneous IoT environments.
title Lightweight Intrusion Detection in IoT via SHAP-Guided Feature Pruning and Knowledge-Distilled Kronecker Networks
topic Machine Learning
Networking and Internet Architecture
url https://arxiv.org/abs/2512.19488