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Hai-Yan Zhao

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#natural language process... Preprint Oct 2026

HeadEdit: Calibrating Language Model Behavior Through the Frozen Unembedding Matrix

Alignment does not eliminate behavioral errors in language models. Models may still refuse benign requests, call unnecessary tools, or yield to false user claims. Current methods mitigate such errors as a computation problem, and rarely explore if the desired behavior is already encoded in the model's representation. M...

Zirui He, Hai-Yan Zhao, Jing-Yu Hu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

MM-FinEval: A Multi-Task Multimodal Benchmark for Real-World Financial Forecasting

Financial forecasting from earnings conference calls requires models to reason over complex corporate disclosures, market expectations, and subtle communication signals. However, existing financial benchmarks are often limited to unimodal inputs or single-task settings, making it difficult to evaluate whether multimoda...

Dong Shu, Yan-Guang Liu, Huo-Pu Zhang et al. · 0 citations
#natural language process... Preprint Sep 2026

Faithful Activation Verbalization: Reducing Hallucinations in LLM Representation Interpretation

Activation verbalization methods such as Activation Oracle and Natural Language Autoencoders decode hidden representations of large language models into human-readable natural language. However, existing methods can produce incomplete or hallucinated descriptions, making their activation verbalizations difficult to tru...

Hai-Yan Zhao, Zi-Rui Hei, Wei Shi et al. · 0 citations

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