Papers by Tianming Yang
HELENE: Hessian Layer-wise Clipping and Gradient Annealing for Accelerating Fine-tuning LLM with Zeroth-order Optimization (2025.emnlp-main)
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| Challenge: | Large language models (LLMs) face memory challenges due to the high cost of backpropagation. |
| Approach: | They propose a zeroth-order (ZO) optimization that matches memory usage to inference . they propose scalable and memory-efficient zeroth order (ZE) optimizer that integrates annealed A-GNB gradients with diagonal Hessian estimation and layer-wise clipping as a second-order pre-conditioner. |
| Outcome: | The proposed algorithm outperforms state-of-the-art methods with an average speedup of 20 over MeZO on RoBERTa-large and OPT-1.3B. |
Type Enhanced BERT for Correcting NER Errors (2023.findings-acl)
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| Challenge: | Named entity recognition (NER) is the task of identifying spans that belong to particular categories, such as person, location, organization, etc. |
| Approach: | They propose a method that integrates named entity’s type information into BERT by an adapter layer and integrates it into a gazetteer. |
| Outcome: | The proposed method outperforms baselines in multiple corpus. |
Label Words as Local Task Vectors in In-Context Learning (2026.findings-acl)
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| Challenge: | Large Language Models (LLMs) have demonstrated remarkable abilities, one of the most important being in-context learning (ICL). |
| Approach: | They hypothesized that the network creates a task vector in specific positions during ICL, which can be computed by averaging across the dataset. |
| Outcome: | The proposed model can achieve zero-shot performance with dummy inputs comparable to few-shot learning by patching the global task vector. |