Papers by Yuqing Wang

22 papers
Multilingual Speech Translation from Efficient Finetuning of Pretrained Models (2021.acl-long)

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Challenge: Recent advances in text pretraining and finetuning have improved multitasking applications significantly.
Approach: They propose a minimalistic LNA finetuning approach to build multilingual speech-to-text translation using a pretrained speech encoder and text decoder.
Outcome: The proposed approach surpasses the cascaded ST benchmark for 36 translation directions on the large-scale multilingual ST benchmark CoVoST 2.
TRAM: Benchmarking Temporal Reasoning for Large Language Models (2024.findings-acl)

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Challenge: despite advances in natural language processing, temporal reasoning is still a challenge . despite advancements in NLP, current language models have yet to reach human level in this domain .
Approach: They propose a temporal reasoning benchmark that measures time-related temporal aspects of events . they evaluate popular LLMs like GPT-4 and Llama2 in zero-shot and few-shot scenarios .
Outcome: The proposed model outperforms human models in a few-shot and zero-shot scenarios . the best-performing model lags significantly behind human models, the authors say .
Federated LoRA Fine-Tuning with Pipelined Error-Mitigated Aggregation and Matrix-Wise Freezing (2026.findings-acl)

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Challenge: Existing methods for fine-tuning large language models often suffer from biased model aggregation and are hindered by significant communication and computation burden.
Approach: They propose a Federated low-rank adaptation system for large language models that leverages pipelined error-mitigated model aggregation and adaptive matrix-wise parameter freezing to mitigate aggregations.
Outcome: The proposed system improves time-to-target by 2.17-8.48 on real-world datasets.
Rectified Sparse Attention for Efficient Long-Sequence Generation (2026.findings-acl)

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Challenge: Recent sparse decoding methods improve efficiency but suffer from KV cache misalignment, resulting in performance degradation.
Approach: They propose a method that combines block-sparse attention with periodic dense rectification to bound error accumulation and preserve alignment with the pretraining distribution.
Outcome: Experiments on math reasoning, language modeling, and retrieval tasks show that ReSA achieves near-lossless generation quality with significantly improved efficiency.
Token-Aware Editing of Internal Activations for Large Language Model Alignment (2025.emnlp-main)

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Challenge: Existing methods to optimize the behavior of large language models neglect misalignment discrepancies among tokens, resulting in deviant alignment direction and inflexible editing strength.
Approach: They propose a token-aware editing approach to exploit the misalignment discrepancy among tokens to enhance activation probing and facilitate intervention.
Outcome: Extensive experiments on three alignment capabilities demonstrate the efficacy of the proposed approach surpassing baseline by 25.8% on the primary metric of truthfulness with minimal cost.
Metacognitive Prompting Improves Understanding in Large Language Models (2024.naacl-long)

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Challenge: Recent advances in prompting have enhanced reasoning in logic-intensive tasks for LLMs, yet the nuanced understanding abilities of these models remain underexplored.
Approach: They propose a strategy inspired by human introspective reasoning processes to enhance LLMs' understanding abilities.
Outcome: The proposed method outperforms chain-of-thought prompting and its advanced versions on ten natural language understanding (NLU) datasets.
Inducing Argument Facets for Faithful Opinion Summarization (2025.findings-emnlp)

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Challenge: Faithful opinion summarization task involves generating a summary that covers the majority and minority opinions in documents.
Approach: They propose a facets-guided opinion summarization method that induces facets and partitions documents into multiple facet-specific sets.
Outcome: The proposed method outperforms state-of-the-art methods and multiple LLMs on two representative datasets and shows it can be used in specialty domains.
Adaptive Contrastive Knowledge Distillation for BERT Compression (2023.findings-acl)

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Challenge: Existing knowledge distillation methods for BERT implicitly learn discriminative student features by mimicking the teacher features.
Approach: They propose a new knowledge distillation approach called adaptive contrastive knowledge distilling for BERT compression using hidden state features in BERT as explicit supervision to learn discriminative student features.
Outcome: The proposed approach improves on multiple natural language processing tasks.
SelfAug: Mitigating Catastrophic Forgetting in Retrieval-Augmented Generation via Distribution Self-Alignment (2025.findings-emnlp)

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Challenge: Existing solutions for supervised fine-tuning often lead to catastrophic forgetting, where models lose their previously acquired knowledge and general capabilities.
Approach: They propose a self-distribution alignment method that aligns input sequence logits to preserve the model’s semantic distribution, thereby mitigating catastrophic forgetting and improving downstream performance.
Outcome: The proposed method achieves a superior balance between downstream learning and general capability retention.
Empathy in Diversity: Personalized Depression and Anxiety Therapy via Dialogue State Tracking and Patient-Aware Planning (2026.acl-long)

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Challenge: Recent efforts have turned to large language models (LLMs) as therapeutic agents for psychological therapy tasks, yet robustness across diverse patients remains underexplored.
Approach: They propose a realistic role-play protocol for evaluating therapeutic dialogue agents and a de-identified, expert-annotated corpus of therapist–patient dialogues.
Outcome: The proposed framework outperforms baselines on therapeutic outcomes and dialogue quality while improving conversational efficiency.
Lexical Diversity-aware Relevance Assessment for Retrieval-Augmented Generation (2025.acl-long)

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Challenge: Extensive experiments on widely used benchmarks demonstrate the efficacy of our approach, yielding a 10.6% accuracy improvement on HotpotQA.
Approach: They propose a Lexical Diversity-aware RAG method to address the biases in relevant information retrieval and utilization induced by lexical diversity.
Outcome: Extensive experiments on widely used benchmarks show the proposed method yields a 10.6% accuracy improvement on HotpotQA.
Putting words into the system’s mouth: A targeted attack on neural machine translation using monolingual data poisoning (2021.findings-acl)

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Challenge: Neural machine translation systems are known to be vulnerable to adversarial test inputs, however, they are also vulnerable to training attacks.
Approach: They propose a poisoning attack in which a malicious adversary inserts a small poisoned sample of monolingual text into a training set of a system trained using back-translation.
Outcome: The proposed attack is based on two methods that can be used to craft poisoned examples.
LeanK: Learnable K Cache Channel Pruning for Efficient Decoding (2025.emnlp-main)

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Challenge: Existing efforts to optimize the key-value (KV) cache include: (1) Eviction, which discards cache of less important tokens; (2) Selection, which retains the full KV cache but selectively reads relevant entries.
Approach: They propose a learning-based method that prunes unimportant key (K) cache channels by leveraging static channel sparsity.
Outcome: Experiments show that LeanK reduces GPU memory and accelerates decoding without sacrificing accuracy.
Position Engineering: Boosting Large Language Models through Positional Information Manipulation (2024.emnlp-main)

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Challenge: Recent advances in Large Language Models (LLMs) have demonstrated significant strides towards achieving artificial general intelligence.
Approach: They propose a technique termed position engineering which alters the positional information in the prompt without modifying the text itself.
Outcome: The proposed technique significantly improves on the baseline in retrieval-augmented generation and in-context learning scenarios.
When LLMs Read Tables Carelessly: Measuring and Reducing Data Referencing Errors (2026.acl-long)

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Challenge: Large language models (LLMs) perform well on table tasks, but they still make data referencing errors (DREs) prior studies have only offered limited, small-scale analyses.
Approach: They propose inference-time strategies and lightweight critics to mitigate data referencing errors.
Outcome: The proposed model achieves an average F1 score of 78.2% in detecting both in-distribution and out-of-difference DREs and assists inference for larger models.
Native Sparse Attention: Hardware-Aligned and Natively Trainable Sparse Attention (2025.acl-long)

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Challenge: Long-context modeling is crucial for next-generation language models, but high computational cost of standard attention mechanisms poses significant computational challenges.
Approach: They propose a natively trained Sparse Attention mechanism that integrates algorithms with hardware-aligned optimizations to achieve efficient long-context modeling.
Outcome: The proposed model maintains or exceeds Full Attention models across general benchmarks, long-context tasks, and instruction-based reasoning.
SportQA: A Benchmark for Sports Understanding in Large Language Models (2024.naacl-long)

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Challenge: SportQA is a benchmark specifically designed for evaluating Large Language Models (LLMs) sports knowledge is characterized by its fast pace, variety of types, abundance of strategies, and rich player narratives .
Approach: They propose a benchmark specifically designed for evaluating Large Language Models in the context of sports understanding.
Outcome: The proposed benchmark aims to bridge the gap between existing and specialized benchmarks in sports understanding.
PROMINET: Prototype-based Multi-View Network for Interpretable Email Response Prediction (2023.emnlp-industry)

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Challenge: a new study examines email marketing performance by considering email content and metadata.
Approach: They propose a model that incorporates semantic and structural information from email data to generate latent exemplars for email response prediction.
Outcome: The proposed model outperforms baseline models on two real-world email datasets . it provides interpretability through prototypes at different granularity levels while maintaining comparable performance to non-interpretable models.
InfoGain-RAG: Boosting Retrieval-Augmented Generation through Document Information Gain-based Reranking and Filtering (2025.emnlp-main)

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Challenge: Retrieval-Augmented Generation (RAG) frameworks struggle with identifying whether retrieved documents meaningfully contribute to answer generation.
Approach: They propose a document-related metric to quantify the contribution of retrieved documents to correct answer generation.
Outcome: The proposed framework outperforms existing approaches on both single and multiple retrieval paradigms.
TokenShapley: Token Level Context Attribution with Shapley Value (2025.findings-acl)

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Challenge: Large language models (LLMs) have strong capabilities in in-context learning, but verifying the correctness of their generated responses remains a challenge.
Approach: They propose a token-level attribution method that combines Shapley value-based data attribution with KNN-based retrieval techniques to improve attribution accuracy.
Outcome: TokenShapley outperforms state-of-the-art methods on four benchmarks . it achieves an 11–23% improvement in accuracy on the benchmarks.
SEARCH-R: Structured Entity-Aware Retrieval with Chain-of-Reasoning Navigator for Multi-hop Question Answering (2026.findings-acl)

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Challenge: Existing approaches to multi-hop question answering lack effective control over reasoning paths, leading to astray results.
Approach: They propose a framework for multi-hop question answering that trains an end-to-end reasoning path navigator to provide a powerful sub-question decomposer by fine-tuning the Llama3.1-8B model.
Outcome: The proposed framework trains an end-to-end reasoning path navigator . it is able to provide a powerful sub-question decomposer by fine-tuning the Llama3.1-8B model .

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