Papers by Jianhua Tao

13 papers
Two-Stage Regularization-Based Structured Pruning for LLMs (2026.acl-long)

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Challenge: Structural pruning is a promising solution for large language models . prior structured pruning methods remove unimportant parameters based on certain metrics .
Approach: They propose a structural pruning method that iteratively learns the weights of transformer layers by adding their l1-norm to the loss function.
Outcome: The proposed pruning method outperforms strong layer-wise pruning methods without requiring retraining.
ReFL: Reflective Feedback Learning for Hallucination Detection of Large Language Models (2026.acl-long)

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Challenge: Existing methods for detecting hallucinations depend on external knowledge sources, incurring high computational costs and limiting real-time applicability, or extract the model’s internal states, leading to poor generalization.
Approach: They propose a hallucination detection framework that leverages corrective in-context learning to guide LLMs to recognize their own prediction errors and adjust internal representations, critically without updating model weights.
Outcome: The proposed framework outperforms existing methods on two benchmark datasets and achieves state-of-the-art performance.
Listen, Watch, and Learn to Feel: Retrieval-Augmented Emotion Reasoning for Compound Emotion Generation (2025.findings-acl)

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Challenge: Existing methods to assess human emotion are limited by the subjective nature of emotion perception, limiting the robustness of existing models.
Approach: They propose a plug-and-play module that enhances MLLMs’ ability to tackle compound and context-rich emotion tasks.
Outcome: The proposed framework improves MLLMs' ability to tackle compound and context-rich emotion tasks and the Compound Emotion QA dataset shows it performs well across both benchmarks and evaluation frameworks.
SPARK: Strategic Policy-Aware Exploration via Dynamic Branching for Long-Horizon Agentic Learning (2026.acl-long)

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Challenge: Existing methods for training large language models waste computation budget on trivial steps while failing to guarantee sample quality.
Approach: They propose a framework that selectively branches at critical decision states for resource-efficient exploration.
Outcome: The proposed framework activates adaptive branching exploration at critical decision states to probe promising trajectories, thereby achieving precise resource allocation that prioritizes sampling quality over blind coverage.
RadialRouter: Structured Representation for Efficient and Robust Large Language Models Routing (2025.findings-emnlp)

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Challenge: Current routing methods are limited in exploring the connection between query and LLM characteristics.
Approach: They propose a framework for LLM routing that uses a transformer-based backbone and a radial structure to articulate the query-LLMs relationship.
Outcome: The proposed framework outperforms existing routing methods by 9.2% and 5.8% on RouterBench.
TemplateRL: Structured Template-Guided Reinforcement Learning for LLM Reasoning (2026.findings-acl)

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Challenge: Existing RL methods rely on unstructured self-sampling to fit scalar rewards, resulting in inefficient rollouts.
Approach: They propose a structured template-guided RL framework that augments policy optimization with explicit template guidance.
Outcome: Experiments show that TemplateRL outperforms GRPO and GRPI by 99% on AIME and 41% on AMC with superior stability on weak models and remarkable cross-domain generalization.
Beyond Examples: Towards Automated Thought-level In-Context Reasoning for Large Language Models (2026.acl-long)

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Challenge: In-context learning (ICL) struggles with complex reasoning due to superficial, example-level implicit imitation.
Approach: They propose an automated method that shifts from surface-level examples to more guidance-oriented thought patterns.
Outcome: The proposed method achieves 80.6% accuracy on MATH and 62.5% on AMC, surpassing GPT-4o’s 77.2% and 57.5% accuracy.
Pandora’s Box or Aladdin’s Lamp: A Comprehensive Analysis Revealing the Role of RAG Noise in Large Language Models (2025.acl-long)

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Challenge: Retrieval-Augmented Generation (RAG) has emerged as a promising approach to address hallucinations in large language models (LLMs).
Approach: They define seven distinct noise types from a linguistic perspective and establish a Noise RAG Benchmark (NoiserBench) they propose to evaluate noise that is beneficial to LLMs and noise that's harmful to LRMs.
Outcome: The proposed framework consists of seven distinct noise types from a linguistic perspective and includes multiple datasets and reasoning tasks.
Bilateral Masking with prompt for Knowledge Graph Completion (2024.findings-naacl)

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Challenge: Existing word matching methods fail to obtain satisfactory single embedding representations for entities.
Approach: They propose a bi-encoder-based approach to enhance entity representations by using prompts to narrow the distance between the predicted entity and the known entity.
Outcome: The proposed model achieves state-of-the-art performance on the WN18RR dataset.
ATLAS: Orchestrating Heterogeneous Models and Tools for Multi-Domain Complex Reasoning (2026.findings-acl)

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Challenge: Existing approaches to optimize large language models with external tools are limited.
Approach: They propose a dual-path framework for dynamic tool usage in cross-domain complex reasoning . they exploit empirical priors for domain-specific alignment and RL-based multi-step routing .
Outcome: The proposed framework outperforms closed-source models and existing methods on in-distribution and out-of-distortion tasks.
NLoPT: N-gram Enhanced Low-Rank Task Adaptive Pre-training for Efficient Language Model Adaption (2024.lrec-main)

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Challenge: Pre-trained Language Models (PLMs) have superior performance on downstream tasks . however, conventional TAPT adjusts all parameters of the PLMs, which distorts the learned generic knowledge embedded in the original PLM's weights.
Approach: They propose a two-step n-gram enhanced low-rank task adaptive pre-training method to customize a PLM to the downstream task.
Outcome: The proposed method improves performance on six datasets from four domains.
CAIR: Causal Adaptive Information-based Reinforcement Learning for Multimodal Emotion Reasoning (2026.findings-acl)

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Challenge: Existing methods for multimodal emotion reasoning produce fluent but superficial explanations that lack authentic logical derivation.
Approach: They propose a framework that treats rationales as causal mediators between raw perceptual signals and emotional semantics and an adaptive optimization mechanism to balance perception and reasoning across varying cognitive loads.
Outcome: The proposed framework outperforms specialized SFT models by 14.4% while enhancing rationale faithfulness.
CoDA: Restoring Contextual Dominance via Copy-Encouraged Attention Intervention for Mitigating RAG Hallucinations (2026.findings-acl)

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Challenge: Retrieval-augmented generation reduces hallucination by grounding outputs in external evidence.
Approach: They propose a lightweight inference-time attention intervention that amplifies evidence-aligned value states to enhance contextual faithfulness and reduce hallucination.
Outcome: The proposed model reduces hallucination by grounding model outputs in external evidence.

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