Papers by Jiatong Li

12 papers
SUPERB-SG: Enhanced Speech processing Universal PERformance Benchmark for Semantic and Generative Capabilities (2022.acl-long)

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Challenge: Existing evaluation methods for transfer learning are limited in speech research . authors show that pre-trained models transfer well across multiple tasks .
Approach: They propose a benchmark to evaluate pre-trained models by increasing task diversity and difficulty over SUPERB.
Outcome: The proposed benchmark increases task diversity and difficulty over SUPERB-SG.
FFN Lens: How Transformers Divide Labor for Multilingual Tasks (2026.findings-acl)

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Challenge: Large Language Models (LLMs) exhibit strong performance on multilingual tasks, yet the process of constructing predictions in the target language remains under-explored.
Approach: They propose a novel interpretability method focusing on the Feed-Forward Network (FFN) layers of Large Language Models.
Outcome: The proposed interpretability method is based on the Feed-Forward Network (FFN) layer of Large Language Models.
BSCodec: A Band-Split Neural Codec for High-Quality Universal Audio Reconstruction (2026.findings-eacl)

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Challenge: Neural audio codecs have enabled high-fidelity reconstruction of speech, music and sound . however, speech-optimized codec systems suffer degradation on music or sound if they ignore spectral differences .
Approach: They propose a neural audio codec that splits the spectral dimension into separate bands and compresses each band independently.
Outcome: Experimental results show that BSCodec achieves better reconstruction quality on music and sound compared to existing codecs.
Conflicts, Villains, Resolutions: Towards models of Narrative Media Framing (2023.acl-long)

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Challenge: a growing body of work attempts to automatically detect media frames in the news or social media, but most adopts a topic-like view on frames, evading modelling the broader document-level narrative.
Approach: They propose an annotation paradigm that breaks a complex annotation task into a series of simple binary questions.
Outcome: The proposed method is both effective and transparent in its predictions.
Towards Robust Speech Representation Learning for Thousands of Languages (2024.emnlp-main)

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Challenge: XEUS is a cross-lingual encoder for universal speech that can be trained on 1 million hours of data across 4057 languages.
Approach: They propose a Cross-lingual Encoder for Universal Speech that can be trained on 1 million hours of data across 4057 languages and a newly created corpus of 7400+ hours from 4057 .
Outcome: The proposed model outperforms state-of-the-art models on several benchmarks and outperfies MMS 1B and w2v-BERT 2.0 v2 by 0.8% and 4.4% respectively.
The Strength of the Weakest Supervision: Topic Classification Using Class Labels (N19-3)

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Challenge: a topic classifier can understand only class labels when training for tasks that require a large amount of labeled documents.
Approach: They propose an algorithm that can initialize a topic classifier using only class labels . they propose a method that combines word embedding and naive Bayes classification .
Outcome: The proposed approach saves significant initial labeling effort by providing a "warm start" the proposed approach can be fine-tuned with more labeled documents to reach a certain performance level.
Summarize-Exemplify-Reflect: Data-driven Insight Distillation Empowers LLMs for Few-shot Tabular Classification (2025.findings-emnlp)

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Challenge: Recent studies show the promise of large language models for few-shot tabular classification but highlight challenges due to the variability in structured data.
Approach: They propose a framework that distills data into actionable insights to enable robust and effective classification by large language models.
Outcome: The proposed framework integrates rule summarization, strategic exemplification, and insight reflection through deep collaboration between LLMs and data modeling techniques.
ReAL: How Can LLMs Simulate the Real Teacher? Retrieval-enhanced Agent for Adaptive Learning (2025.findings-emnlp)

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Challenge: Prior methods model learner-item interactions based only on ID sequences, leading to insufficient use of both learner and item information.
Approach: They propose a Retrieval-enhanced Agent for Adaptive Learning powered by large language models to simulate teacher decision-making with extensive prior knowledge and teaching experience.
Outcome: The proposed model outperforms existing models on three real-world datasets in both internal and external perspectives.
LLaMA-Berry: Pairwise Optimization for Olympiad-level Mathematical Reasoning via O1-like Monte Carlo Tree Search (2025.naacl-long)

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Challenge: LLaMA-Berry is an advanced mathematical reasoning framework to enhance the problem-solving ability of large language models (LLMs).
Approach: They propose a Monte Carlo Tree Search and Self-Refine framework to optimize reasoning paths and a pairwise reward model to evaluate different paths globally.
Outcome: The proposed framework overcomes inefficiencies and limitations of step-wise and greedy search algorithms, enabling more efficient exploration of solution spaces.
Multimodal Neural Machine Translation: A Survey of the State of the Art (2025.emnlp-main)

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Challenge: Multimodal neural machine translation (MNMT) is a task that aims to translate text into the target language using neural networks.
Approach: They propose to integrate other modalities with textual data to enhance translation performance.
Outcome: The proposed task aims to integrate visual modality with textual data to improve translation quality.
Uncertainty Quantification in LLM Agents: Foundations, Emerging Challenges, and Opportunities (2026.acl-long)

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Challenge: Uncertainty quantification (UQ) for large language models is a key building block for daily applications.
Approach: They propose a general formulation of agent UQ that subsumes broad classes of existing UQ setups.
Outcome: The proposed framework is based on the first general formulation of agent UQ that subsumes broad classes of existing setups.
Logic Jailbreak: Efficiently Unlocking LLM Safety Restrictions Through Formal Logical Expression (2026.findings-acl)

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Challenge: Despite advances in aligning LLMs with human values, current safety mechanisms remain vulnerable to jailbreak attacks.
Approach: They propose a black-box jailbreak method that uses logical expression translation to bypass LLM safety mechanisms.
Outcome: The proposed method exploits the distributional gap between alignment data and logic-expressed inputs while preserving the underlying semantic intent and readability while evading safety constraints.

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