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Dan Li

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titleconferencedate
BayWatch: Practical Internet-Scale Topology Monitoring with Dynamic Bayesian EstimationNSDI '262026-05-04
System that builds a layered model of TTL hops and uses a Dynamic Bayesian Network to infer actual load‑balancing reply (LBR) distributions rather than…
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Supercharging Packet-level Network Simulation of Large Model Training via Memoization...NSDI '262026-05-04
Wormhole implements a C++ ns-3 kernel that uses network partitioning, state memoization and rate-based steady-state detection to skip repetitive packet events…
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CCEval: Accurately and Confidently Evaluating Performance Metrics of Congestion...NSDI '262026-05-04
CCEval is an evaluation framework that outputs confidence intervals and forecasts needed trials using model-free trial forecasting and speeds extreme-tail…
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Your Shield is My Sword: A Persistent Denial-of-Service Attack via the...USENIX Security '252025-08-13
Describes RUC, an attack that injects unvalidated DNSSEC troubleshooting responses (via CD bit queries) into resolver caches and causes persistent validation…
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Accelerating Design Space Exploration for LLM Training Systems with Multi-experiment...NSDI '252025-04-28
Presents Multiverse, a GPU-based LLM-training simulator that runs many independent experiments in one process using SPME and data-oriented DoD modeling, with…
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SimAI: Unifying Architecture Design and Performance Tuning for Large-Scale Large...NSDI '252025-04-28
SimAI claims a unified, high‑precision LLM training simulator that matches real runs 98.1% alignment by hijacking training frameworks (Megatron, DeepSpeed)…
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CEGS: Configuration Example Generalizing SynthesizerNSDI '252025-04-28
CEGS is a system that uses a GNN-based Querier to find relevant device documentation examples, a GNN-based Classifier to map example snippets to target…
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Resolving Packets from Counters: Enabling Multi-scale Network Traffic Super Resolution...NSDI '252025-04-28
ZOOMSYNTH reconstructs packet-level traces from second‑level counters by stacking a transformer that models trends with an extreme‑value branch into a tree of…
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BGL: GPU-Efficient GNN Training by Optimizing Graph Data I/O and PreprocessingNSDI 20232023-04-17
Distributed GNN training system BGL builds a dynamic cache engine and a two-level CPU+GPU cache that together cut feature-retrieval traffic and reduce…
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Buffer-based End-to-end Request Event Monitoring in the Cloud19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)2022-04-04
BufScope models the request datapath as a buffer chain and injects per-request IDs plus a remaining-size field into packet headers so SmartNICs and…
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Elixir: A High-performance and Low-cost Approach to Managing Hardware/Software Hybrid19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)2022-04-04
Elixir: A High-performance and Low-cost Approach to Managing Hardware/Software Hybrid Flow Tables Considering Flow Burstiness Yanshu Wang and Dan Li, Tsinghua…
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