Generalizable IoT Traffic Representations for Cross-Network Device Identification

Fuente: arXiv
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Main Authors: Sivanathan, Arunan, Warren, David, Mishra, Deepak, Ruj, Sushmita, Fernandes, Natasha, Sheng, Quan Z., Tran, Minh, Luo, Ben, Coscia, Daniel, Batista, Gustavo, Gharakaheili, Hassan Habibi
Format: Preprint
Published: 2026
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_version_ 1866908791109320704
author Sivanathan, Arunan
Warren, David
Mishra, Deepak
Ruj, Sushmita
Fernandes, Natasha
Sheng, Quan Z.
Tran, Minh
Luo, Ben
Coscia, Daniel
Batista, Gustavo
Gharakaheili, Hassan Habibi
author_facet Sivanathan, Arunan
Warren, David
Mishra, Deepak
Ruj, Sushmita
Fernandes, Natasha
Sheng, Quan Z.
Tran, Minh
Luo, Ben
Coscia, Daniel
Batista, Gustavo
Gharakaheili, Hassan Habibi
contents Machine learning models have demonstrated strong performance in classifying network traffic and identifying Internet-of-Things (IoT) devices, enabling operators to discover and manage IoT assets at scale. However, many existing approaches rely on end-to-end supervised pipelines or task-specific fine-tuning, resulting in traffic representations that are tightly coupled to labeled datasets and deployment environments, which can limit generalizability. In this paper, we study the problem of learning generalizable traffic representations for IoT device identification. We design compact encoder architectures that learn per-flow embeddings from unlabeled IoT traffic and evaluate them using a frozen-encoder protocol with a simple supervised classifier. Our specific contributions are threefold. (1) We develop unsupervised encoder--decoder models that learn compact traffic representations from unlabeled IoT network flows and assess their quality through reconstruction-based analysis. (2) We show that these learned representations can be used effectively for IoT device-type classification using simple, lightweight classifiers trained on frozen embeddings. (3) We provide a systematic benchmarking study against the state-of-the-art pretrained traffic encoders, showing that larger models do not necessarily yield more robust representations for IoT traffic. Using more than 18 million real IoT traffic flows collected across multiple years and deployment environments, we learn traffic representations from unlabeled data and evaluate device-type classification on disjoint labeled subsets, achieving macro F1-scores exceeding 0.9 for device-type classification and demonstrating robustness under cross-environment deployment.
format Preprint
id arxiv_https___arxiv_org_abs_2601_19315
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Generalizable IoT Traffic Representations for Cross-Network Device Identification
Sivanathan, Arunan
Warren, David
Mishra, Deepak
Ruj, Sushmita
Fernandes, Natasha
Sheng, Quan Z.
Tran, Minh
Luo, Ben
Coscia, Daniel
Batista, Gustavo
Gharakaheili, Hassan Habibi
Machine Learning
68M12, 68T05
C.2.3; I.2.6; I.5.1
Machine learning models have demonstrated strong performance in classifying network traffic and identifying Internet-of-Things (IoT) devices, enabling operators to discover and manage IoT assets at scale. However, many existing approaches rely on end-to-end supervised pipelines or task-specific fine-tuning, resulting in traffic representations that are tightly coupled to labeled datasets and deployment environments, which can limit generalizability. In this paper, we study the problem of learning generalizable traffic representations for IoT device identification. We design compact encoder architectures that learn per-flow embeddings from unlabeled IoT traffic and evaluate them using a frozen-encoder protocol with a simple supervised classifier. Our specific contributions are threefold. (1) We develop unsupervised encoder--decoder models that learn compact traffic representations from unlabeled IoT network flows and assess their quality through reconstruction-based analysis. (2) We show that these learned representations can be used effectively for IoT device-type classification using simple, lightweight classifiers trained on frozen embeddings. (3) We provide a systematic benchmarking study against the state-of-the-art pretrained traffic encoders, showing that larger models do not necessarily yield more robust representations for IoT traffic. Using more than 18 million real IoT traffic flows collected across multiple years and deployment environments, we learn traffic representations from unlabeled data and evaluate device-type classification on disjoint labeled subsets, achieving macro F1-scores exceeding 0.9 for device-type classification and demonstrating robustness under cross-environment deployment.
title Generalizable IoT Traffic Representations for Cross-Network Device Identification
topic Machine Learning
68M12, 68T05
C.2.3; I.2.6; I.5.1
url https://arxiv.org/abs/2601.19315