Papers by Shujie Li

16 papers
WavLLM: Towards Robust and Adaptive Speech Large Language Model (2024.findings-emnlp)

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Challenge: Recent advances in large language models (LLMs) have expanded their scope to encompass multimodal functions.
Approach: They propose a robust and adaptive speech large language model with dual encoders . they validate the model on universal speech benchmarks and apply it to specialized speech-question-answer datasets based on a CoT approach .
Outcome: The proposed model achieves state-of-the-art performance across a range of speech tasks on the same model size.
Autoregressive Speech Synthesis without Vector Quantization (2025.acl-long)

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Challenge: MELLE is a novel language modeling approach for text-to-speech synthesis that generates continuous tokens from text . authors demonstrate that it reduces the need for vector quantization and improves model robustness .
Approach: They propose to autoregressively generate continuous mel-spectrogram frames directly from text condition, bypassing vector quantization.
Outcome: The proposed model achieves superior performance across multiple metrics and is more streamlined.
TrInk: Ink Generation with Transformer Network (2025.emnlp-main)

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Challenge: Existing methods for handwriting generation capture global dependencies and can generate high-quality handwritten samples.
Approach: They propose a Transformer-based model for ink generation, TrInk, which captures global dependencies.
Outcome: The proposed model reduces character error rate and word error rate by 35.56% on the IAM-OnDB dataset compared to previous models.
Generative Bridging Network for Neural Sequence Prediction (N18-1)

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Challenge: Existing approaches to improve the likelihood of sequence prediction models are based on MLE and teacher forcing.
Approach: They propose a Generative Bridging Network (GBN) that extends the point-wise ground truth to a bridge distribution conditioned on it and optimizes their KL-divergence.
Outcome: The proposed bridge module can improve on two recognized sequence prediction tasks and minimize learning burden.
Exploring the Potential of Large Language Models for Heterophilic Graphs (2025.naacl-long)

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Challenge: Existing approaches for heterophilic graphs overlook rich textual data associated with nodes, which could unlock deeper insights into their heterophilistic contexts.
Approach: They propose a two-stage framework to enhance node classification on heterophilic graphs by leveraging open-world knowledge encoded by large language models.
Outcome: The proposed framework can be used to better characterize heterophilic graphs, where neighboring nodes often exhibit different labels.
SLAM-Omni: Timbre-Controllable Voice Interaction System with Single-Stage Training (2025.findings-acl)

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Challenge: a new spoken dialogue system with single-stage training is demonstrating its low latency and high quality . SLAM-Omni achieves zero-shot timbre control by modeling spoken language with semantic tokens .
Approach: They propose a timbre-controllable, end-to-end voice interaction system with single-stage training.
Outcome: The proposed system outperforms previous models on 4 GPUs with limited data.
MARCH: Multi-Agent Reinforced Check for Hallucination (2026.acl-long)

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Challenge: Existing methods to detect hallucinations suffer from inherent confirmation bias, where the verifier inadvertently reproduces the errors of the original generation.
Approach: They propose a framework that enforces rigorous factual alignment by leveraging deliberate *information asymmetry* by combining a pipeline of three specialized agents: a Solver, a Proposer, and a Checker.
Outcome: Extensive experiments across hallucination benchmarks demonstrate that MARCH substantially reduces hallucinism rates.
SpeechUT: Bridging Speech and Text with Hidden-Unit for Encoder-Decoder Based Speech-Text Pre-training (2022.emnlp-main)

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Challenge: Existing models for pre-training text and speech are based on unlabeled audio data.
Approach: They propose a unified-modal speech-unit-text pre-training model that connects speech encoders and text decoders with a shared unit encoder.
Outcome: The proposed model improves on automatic speech recognition and speech translation tasks and achieves state-of-the-art performance on both the LibriSpeech ASR and MuST-C ST tasks.
Jointly Learning to Repair Code and Generate Commit Message (2021.emnlp-main)

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Challenge: Existing work performs code repair and commit message generation independently.
Approach: They propose a cascaded method to repair program codes and generate commit messages in a unified framework.
Outcome: The proposed model significantly outperforms baselines on a buggy-fixed-commit dataset.
TP-Link: Fine-grained Pre-Training for Text-to-SQL Parsing with Linking Information (2024.lrec-main)

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Challenge: Existing pre-training frameworks for text-to-SQL parsing have shown inherent differences in distributions between tables and plain text.
Approach: They propose a framework to improve context-dependent Text-to-SQL parsing by leveraging Linking information.
Outcome: The proposed framework achieves state-of-the-art performance on two leading downstream benchmarks.
F-Eval: Asssessing Fundamental Abilities with Refined Evaluation Methods (2024.acl-long)

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Challenge: Large language models (LLMs) have been evaluated for their instruction-following capabilities but lack references to their fundamental abilities.
Approach: They propose a bilingual evaluation benchmark to evaluate the fundamental abilities of large language models including expression, commonsense and logic.
Outcome: The proposed evaluation methods show higher correlation coefficients and larger distinction than other evaluators.
Triangular Architecture for Rare Language Translation (P18-1)

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Challenge: Empirical results show that Neural Machine Translation (NMT) performs poor on low-resource pairs especially when Z is a rare language.
Approach: They propose a triangular triangulation technique to leverage bilingual data to optimize the translation performance of low-resource pairs.
Outcome: Empirical results show that the proposed architecture significantly improves translation quality of rare languages on MultiUN and IWSLT2012 datasets and even better when combining back-translation methods.
Closing the Modality Reasoning Gap for Speech Large Language Models (2026.acl-long)

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Challenge: Recent advances in Speech Large Language Models have a modality reasoning gap that is not addressed by prior work.
Approach: They propose a reinforcement-learning framework that aligns text-conditioned and speech-conditioned trajectories through an asymmetric reward design.
Outcome: Experiments on MMSU and OBQA show that the proposed framework narrows the modality reasoning gap and achieves state-of-the-art performance among 7B-scale Speech LLMs.
SpeechT5: Unified-Modal Encoder-Decoder Pre-Training for Spoken Language Processing (2022.acl-long)

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Challenge: Existing work shows that pre-trained models can improve in various natural language processing tasks.
Approach: They propose a unified-modal encoder-decoder framework that pre-trains speech-text representations using large-scale unlabeled speech and text data.
Outcome: The proposed framework is superior to existing models on speech-to-text processing tasks.
Shanks: Simultaneous Hearing and Thinking for Spoken Language Models (2026.acl-long)

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Challenge: Existing large language models and spoken language models (SLMs) begin thinking and taking actions only after the user has finished their turn.
Approach: They propose a general inference framework that enables SLMs to generate unspoken chain-of-thought reasoning while listening to user input.
Outcome: The proposed framework enhances real-time user–SLM interaction in two scenarios.
SpeechLLM-as-Judges: Towards General and Interpretable Speech Quality Evaluation (2026.acl-long)

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Challenge: Existing methods for evaluating the perceptual quality of synthetic speech are limited due to the complexity of perceptual quality factors and the diversity of speech generation tasks.
Approach: They propose a new paradigm for enabling large language models to conduct structured speech quality evaluation using a large-scale dataset.
Outcome: The proposed model performs well across tasks and languages.

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