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Peng-Fei Chen

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Preprint Aug 2026

TELLER: Non-intrusive Cross-Layer Root-Cause Analysis for LLM Inference

Large language model (LLM) inference has evolved from an offline workload into a continuously operated software service, yet root-cause analysis remains difficult because a single request spans the inference engine, Python/C++ backend, host CUDA APIs, GPU kernels, and distributed communication. Existing profilers expos...

Ruilin Xu, Junyi Li, Peng-Fei Chen et al. · 0 citations
Aug 2026

SLOPE: Fine-Grained Log Parser Combining Syntax with LLM-Distilled Semantic

Log parsing, which transforms unstructured log messages into structured formats, is a critical step in automated log analysis and directly impacts the effectiveness of downstream tasks. However, existing log parsers struggle to balance effectiveness with efficiency and show limited capability in handling log inconsiste...

Shu-Ting Lai, Haiyu Huang, Peng-Fei Chen et al. · 0 citations

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