Papers by Yuhao Wu

22 papers
MSEarth: A Multimodal Benchmark for Earth Science Phenomenon Discovery with MLLMs (2026.acl-long)

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Challenge: Existing datasets often rely on synthetic data or figure-caption pairs, failing to capture the depth and complexity of geoscientific reasoning.
Approach: They propose a multimodal scientific dataset and benchmark curated from open-access publications.
Outcome: MSEarth features over 289K figures with captions enriched by contextual discussions and reasoning from original papers.
CodeArena: A Collective Evaluation Platform for LLM Code Generation (2025.acl-demo)

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Challenge: Large Language Models (LLMs) have reshaped code generation, but persistent challenges impede accurate assessment.
Approach: They propose an online evaluation framework tailored for large language models to assess their coding capabilities.
Outcome: a new evaluation framework for large language models (LLMs) provides unbiased, unbiased evaluations and open access to solutions and test cases.
LLMTreeRec: Unleashing the Power of Large Language Models for Cold-Start Recommendations (2025.coling-main)

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Challenge: Lack of training data leads to the system cold-start problem in recommendation systems, making them struggle to provide effective recommendations.
Approach: They propose a tree-based LLM recommendation framework which structures all items into an item tree to improve the efficiency of LLM’s item retrieval.
Outcome: The proposed framework outperforms the baseline model in the A/B test on Huawei industrial system.
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.
Second Language (Arabic) Acquisition of LLMs via Progressive Vocabulary Expansion (2025.acl-long)

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Challenge: In the evolving landscape of large language models, the predominant focus has been on English and Chinese.
Approach: They propose to utilize Arabic-specific vocabulary in the tokenizer to accelerate decoding.
Outcome: The proposed model achieves decent performance comparable to the best Arabic LLMs across various Arabic benchmarks.
Reinforcement Learning on Pre-Training Data (2026.acl-long)

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Challenge: Recent progress in large language models is driven by scaling of training compute through pre-training with nexttoken prediction (NTP) or post-training (RL) Pre-training using NTP enables models to acquire extensive knowledge and skills from general data, but it suffers from data inefficiency and catastrophic forgetting in continual learning settings.
Approach: They propose to scale training compute through pre-training with next-token prediction (NTP) or post-training by scaling reinforcement learning (RL) to improve learning from general data.
Outcome: Experiments on multiple benchmarks and models show that the proposed approach improves continual pre-training and provides a strong foundation for post-training on Qwen3-8B-Base.
SuperWriter: Reflection-Driven Long-Form Generation with Large Language Models (2026.findings-acl)

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Challenge: Long-form text generation remains a challenge for large language models . generating extended sequences often leads to degraded coherence and logical consistency .
Approach: They propose a framework that integrates explicit structured thinking into long-form text generation.
Outcome: The proposed framework surpasses even larger-scale models in evaluation and human evaluation.
Fundamental Capabilities of Large Language Models and their Applications in Domain Scenarios: A Survey (2024.acl-long)

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Challenge: Existing benchmark-based evaluations cannot accurately reflect the performance of real-world applications.
Approach: They propose a reliable strategy for domains to choose more robust LLMs for real-world applications.
Outcome: The proposed strategy addresses the challenges faced by domains to choose more robust LLMs for real-world applications.
DSQG-Syn: Synthesizing High-quality Data for Text-to-SQL Parsing by Domain Specific Question Generation (2025.findings-naacl)

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Challenge: Existing methods for generating SQL queries using natural language questions produce inconsistent NLQ-SQL pairs.
Approach: They propose a text-to-SQL data synthesis framework that generates domain-relevant questions . they synthesize NLQ-SqL pairs that are domain-specific and intent-consistent .
Outcome: The proposed method outperforms closed-source LLMs on the Text-to-SQL task.
Double: Breaking the Acceleration Limit via Double Retrieval Speculative Parallelism (2026.acl-long)

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Challenge: Parallel Speculative Decoding (PSD) has limitations due to speedup limits and high computational waste . a novel synchronous mechanism solves the Retrieval Precision-Efficiency Dilemma .
Approach: They propose a framework that combines a draft-verification-based approach with a synchronous mechanism to solve the Retrieval Precision-Efficiency Dilemma.
Outcome: The proposed framework breaks speedup limits for Speculative Decoding by overlapping draft generation with verification.
Reinforced Informativeness Optimization for Long-Form Retrieval-Augmented Generation (2026.acl-long)

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Challenge: Existing reinforcement learning systems lack verifiable reward mechanisms for long-form question answering . current systems lack reliable long-term answers due to lack of factual content .
Approach: They propose a framework for reinforced verifiable informativeness optimization . it defines informativeness as measurable and externally verifier objective for RL .
Outcome: Experiments show that RioRAG achieves higher factual recall and faithfulness . the proposed framework is based on a framework that uses nugget-centric verification with cross-source checks .
Robust Lottery Tickets for Pre-trained Language Models (2022.acl-long)

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Challenge: Recent studies have shown that pre-trained language models contain smaller matching subnetworks that are not robust to adversarial examples.
Approach: They propose a method to find robust tickets hidden in pre-trained language models by learning binary weight masks and an adversarial loss objective to guide the search.
Outcome: The proposed method improves on previous work on adversarial robustness evaluation.
Lost in Stories: Consistency Bugs in Long Story Generation by LLMs (2026.findings-acl)

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Challenge: Existing story generation benchmarks focus mainly on plot quality and fluency, leaving consistency errors unexplored.
Approach: They propose a benchmark to evaluate narrative consistency in long-form story generation.
Outcome: Evaluating LLMs, we find consistency errors are common in factual and temporal dimensions . authors say the findings can inform future efforts to improve consistency in long-form narrative generation.
Investigating the Factual Knowledge Boundary of Large Language Models with Retrieval Augmentation (2025.coling-main)

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Challenge: Large language models (LLMs) have shown impressive prowess in solving a wide range of tasks with world knowledge, but it remains unclear how well they perceive their factual knowledge boundaries.
Approach: They propose to use a retrieval augmentation approach to enhance LLMs' awareness of factual knowledge boundaries to analyze factual and factual information in open-domain question answering (QA)
Outcome: The proposed method improves LLMs’ QA and judgemental capabilities by integrating supporting documents with the questions.
VocalNet: Speech LLMs with Multi-Token Prediction for Faster and High-Quality Generation (2025.emnlp-main)

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Challenge: Experimental results show VocalNet outperforms existing open-source speech LLMs despite limited training data.
Approach: They propose a scalable and model-agnostic training framework and a novel multi-token prediction paradigm for speech generation.
Outcome: The proposed model outperforms open-source speech LLMs while outperforming existing open-sourced models.
SPO: Self Preference Optimization with Self Regularization (2025.findings-emnlp)

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Challenge: Existing reference-free preference optimization methods exhibit higher training efficiency but are prone to overoptimization, leading to performance degradation.
Approach: They propose a reference-free preference optimization method that replaces the logsigmoid loss function with a SiLU function to improve the model's performance.
Outcome: The proposed method achieves 7% improvement over SimPO on AlpacaEval 2 and MT-Bench.
SentiStream: A Co-Training Framework for Adaptive Online Sentiment Analysis in Evolving Data Streams (2023.emnlp-main)

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Challenge: Existing methods for online sentiment analysis rely on pre-existing datasets.
Approach: They propose a co-training framework specifically designed for efficient sentiment analysis within dynamic data streams.
Outcome: The proposed framework surpasses existing methods in terms of accuracy and computational efficiency.
PSST: A Benchmark for Evaluation-driven Text Public-Speaking Style Transfer (2024.findings-emnlp)

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Challenge: Existing methods to transfer text style focus on sentence-level data, limiting performance . current LLMs struggle to generate public speaking texts that align with human preferences .
Approach: They propose a task to transform official texts into public-speaking styles by analyzing real-world data.
Outcome: The proposed task aims to transform public speaking texts into public-speaking styles . the proposed framework analyzes characteristics and identifies problems of stylized texts .
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.
A Survey of Inductive Reasoning for Large Language Models (2026.acl-long)

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Challenge: Inductive reasoning is an important task for large language models (LLMs).
Approach: They propose a survey of inductive reasoning for large language models . they categorize methods into three main areas: post-training enhancement, test-time exploration, and data augmentation.
Outcome: The proposed method improves inductive reasoning in large language models.
Dancing in Chains: Reconciling Instruction Following and Faithfulness in Language Models (2024.emnlp-main)

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Challenge: Modern language models fail to follow human instructions while being faithful . a trade-off exists between instruction following and faithfulness when training LMs .
Approach: They propose a method that relies on Reject-sampling by Self-instruct with Continued Fine-tuning to train LMs to follow human instructions while being faithful.
Outcome: The proposed method outperforms vanilla MTL with high-quality data, but with significantly smaller data.
Rhombus: Incentivizing Coordination in Parallel Thinking through Reinforcement Learning (2026.findings-acl)

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Challenge: Parallel thinking is a promising avenue for scaling test-time compute in Large Language Models . however, coordinating the exploration and aggregation stages remains challenging .
Approach: They propose a parallel thinking framework that explicitly incentivizes coordination between components via end-to-end reinforcement learning.
Outcome: The proposed framework improves accuracy by 6.0% over long chain-of-thought baselines while reducing wall-clock latency by 39.4% under matched token budgets.

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