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Chen Zhi

3 accepted papers

2026

Mitigating Manifold Departure: Uncertainty-aware Subspace Rectification for Trustworthy MLLM Decoding

ICML 2026poster

Multimodal Large Language Models often suffer from object hallucinations, where generated outputs are inconsistent with the visual evidence. This issue is typically attributed to the over-reliance on language priors, which can override the visual context. Recent training-free decoding strategies add…

Cited by 0SourceScholar
2025

ExploraCoder: Advancing Code Generation for Multiple Unseen APIs via Planning and Chained Exploration

ACL 2025long

Large language models face intrinsic limitations in coding with APIs that are unseen in their training corpora. As libraries continuously evolve, it becomes impractical to exhaustively retrain LLMs with new API knowledge. This limitation hampers LLMs from solving programming problems which require n…

2024

Resisting Backdoor Attacks in Federated Learning via Bidirectional Elections and Individual Perspective

AAAI 2024technical

Existing approaches defend against backdoor attacks in federated learning (FL) mainly through a) mitigating the impact of infected models, or b) excluding infected models. The former negatively impacts model accuracy, while the latter usually relies on globally clear boundaries between benign and in…