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Kevin Hsieh

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titleconferencedate
Enhancing Network Failure Mitigation with Performance-Aware RankingNSDI '252025-04-28
Swarm ranks mitigation actions by directly estimating end-to-end flow metrics using fast approximations: epoched traffic samples, splitting short/long flows…
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Securing Public Cloud Networks with Efficient Role-based Micro-SegmentationNSDI '252025-04-28
Introduces an end-to-end system, ZTS, that infers roles from large flow logs using contrastive learning with sparse labels to reach average ARRI ≈ 0.77 on real…
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NetVigil: Robust and Low-Cost Anomaly Detection for East-West Data Center Security21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)2024-04-16
NetVigil uses flow-level logs aggregated into IP-granularity communication graphs (300 vertices vs ~139k flow-vertex graphs) and a GNN autoencoder trained with…
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RECL: Responsive Resource-Efficient Continuous Learning for Video AnalyticsNSDI 20232023-04-17
System integrates a shared model zoo of previously adapted lightweight experts, a learned model selector that predicts per-frame accuracy and aggregates…
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Ekya: Continuous Learning of Video Analytics Models on Edge Compute Servers19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)2022-04-04
Edge servers run compressed video models that drift with live data; Ekya continuously retrains selected models and schedules GPU time to maximize mean…
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