الباحثون

Haiyan Zhao

المنشورات 4

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HeadEdit: Calibrating Language Model Behavior Through the Frozen Unembedding Matrix

Zirui He, Haiyan Zhao, Jingyu Hu وآخرون · 2026

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 …

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

Dong Shu, Yanguang Liu, Huopu Zhang وآخرون · 2026

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 …

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Explainable and Generalisable LLM-based Cognitive Decline Detection with Spontaneous Speech

Ziyun Cui, Wen Wu, Chuan Shi وآخرون · 2026

Alzheimer's disease (AD) and mild cognitive impairment (MCI), which may precede AD, manifest early through subtle linguistic and acoustic alterations. Traditional diagnostics, however, are often resource-intensive and lack scalability for mass screening. To address these challenges, we introduce a novel bilingual speec …

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Faithful Activation Verbalization: Reducing Hallucinations in LLM Representation Interpretation

Haiyan Zhao, Zirui Hei, Wei Shi وآخرون · 2026

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 …

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