Author

Wei Chen

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Book Open access Jul 2026

FaultWeave: Bounded Resilience Testing with Failure Diagnosis Capability for Microservice Applications

Fault-Weave designs an efficient fault space exploration technique which incrementally explores fault combinations up to a bounded depth, taking full advantage of previous fault injection results to speed up test execution and reduce redundant test scenarios.

Mingzhuo Zheng, Guoquan Wu, Jin-Bo Zhang et al. · SIGSOFT FSE Companion · 0 citations

Jul 2026

Prox: Training-Free FFN Activation Sparsity via Approximate Intermediate-Channel Salience in LLMs

Prox is a two-stage training-free framework for sparse SwiGLU FFNs that outperforms training-free baselines at all sparsity levels, achieves up to a $1.99\times end-to-end decoding speedup at 70\% FFN sparsity, and is compatible with quantization and sparse attention.

Jinyi Liu, Wei Chen, Pengyu Chen et al. · arXiv.org · 0 citations

Preprint Jul 2026

Demystifying Deep Learning Compiler Frontend Bugs: An LLM-Aided Empirical Study

The first systematic empirical study of defects introduced during this stage of deep learning compilers in TorchDynamo, the default DLC frontend for PyTorch 2, the most popular DL framework is conducted, using a domain-knowledge-enhanced LLM-aided methodology.

Xin Yuan, Wei Chen, Jinyi Liu et al. · 0 citations