Papers by Yulong Li

13 papers
Learning Cross-Lingual IR from an English Retriever (2022.naacl-main)

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Challenge: DR.DECR is a cross-lingual information retrieval system trained using multi-stage knowledge distillation (KD) DRDECR demonstrates superior accuracy over direct fine-tuning with labeled CLIR data.
Approach: They propose a cross-lingual information retrieval system with multi-stage knowledge distillation . they teach powerful multilingual representations and CLIR by optimizing two corresponding KD objectives .
Outcome: The proposed system is the best single-model retriever on the XOR-TyDi benchmark . it is based on a multi-stage knowledge distillation process that can be expensive .
Layer-wise Fusion with Modality Independence Modeling for Multi-modal Emotion Recognition (2023.acl-long)

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Challenge: Existing studies focus on developing models that exploit the unification of multiple modalities.
Approach: They propose to maintain modality independence by using a multi-modal transformer model that fuses all modalities.
Outcome: The proposed model outperforms state-of-the-art models in multi-modal emotion recognition.
Rethinking Personality Assessment from Human-Agent Dialogues: Fewer Rounds May Be Better Than More (2025.findings-emnlp)

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Challenge: Existing personality assessment datasets based on natural language do not consider interactivity.
Approach: They propose to use a Chinese dataset to study the effects of different interaction rounds and agent personalities on personality assessment.
Outcome: The proposed dataset contains 1260 interaction rounds between humans and agents with different personalities.
MMRC: A Large-Scale Benchmark for Understanding Multimodal Large Language Model in Real-World Conversation (2025.acl-long)

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Challenge: Existing multimodal large language models lack the ability to memorize, recall, and reason in sustained interactions.
Approach: They propose a multimodal real-world conversation benchmark for evaluating open-ended abilities of multimodal large language models.
Outcome: The proposed benchmarks show that the models perform better in open-ended conversations.
Are ChatGPT and GPT-4 General-Purpose Solvers for Financial Text Analytics? A Study on Several Typical Tasks (2023.emnlp-industry)

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Challenge: Recent large language models such as ChatGPT and GPT-4 have shown exceptional capabilities of generalist models . however, their applicability and effectiveness in specific domains like finance needs a better understanding .
Approach: They conduct empirical studies to compare the performance of ChatGPT and GPT-4 on financial text analytical problems using eight benchmark datasets from five categories of tasks.
Outcome: The proposed models outperform the state-of-the-art models on a wide range of financial text analytical tasks.
On Compositional Generalization of Neural Machine Translation (2021.acl-long)

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Challenge: Modern neural machine translation models have shown competitive performance in benchmarks such as WMT, but there are significant issues such as robustness, domain generalization, etc.
Approach: They propose a benchmark dataset for NMT models from the perspective of compositional generalization and quantitatively analyze the results.
Outcome: The proposed model performs well under traditional metrics, but is low in out-of-domain and low-resource conditions.
PrimeQA: The Prime Repository for State-of-the-Art Multilingual Question Answering Research and Development (2023.acl-demo)

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Challenge: Question Answering (QA) is a major area of research in Natural Language Processing (NLP)
Approach: They propose a one-stop and open-source QA repository for question answering . it supports core QA functionalities like retrieval and reading comprehension . they say it will facilitate easy replication of state-of-the-art (SOTA) QA methods .
Outcome: The proposed framework enables easy replication of state-of-the-art (SOTA) QA methods.
LLM-empowered Dynamic Prompt Routing for Vision-Language Models Tuning under Long-Tailed Distributions (2025.findings-emnlp)

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Challenge: Pre-trained vision-language models (VLMs) often suffer from bias in class-imbalanced scenes.
Approach: They propose a multi-dimensional dynamic prompt routing framework that integrates a knowledge base for classes spanning multiple visual-semantic dimensions.
Outcome: The proposed framework achieves comparable results with current SOTA methods on long-tailed benchmarks, including CIFAR-LT, ImageNet-LT and Places-LT.
Verifiable LLM-Generated Text Detection via Projected Semantic-Structural Distributions (2026.acl-long)

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Challenge: Existing methods for detecting LLM-Generated text suffer from distribution misalignment and limited interpretability.
Approach: They propose a statistical framework utilizing supervised subspace learning to extract compact features and construct conditional semantic distributions based on syntactic structures.
Outcome: The proposed framework is superior in cross-domain, cross-model, and adversarial scenarios.
AdaPrompt: Adaptive Model Training for Prompt-based NLP (2022.findings-emnlp)

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Challenge: Prompt-based learning can tackle zero-shot and few-shot NLP tasks . authors propose a method that makes use of pre-trained language models .
Approach: They propose to map NLP tasks into natural language prompts, which are then filled by pre-trained language models.
Outcome: The proposed method outperforms standard prompt-based methods in few-shot settings.
TAGS: A Test-Time Generalist–Specialist Framework with Retrieval-Augmented Reasoning and Verification (2026.findings-acl)

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Challenge: Existing efforts to improve medical question answering performance follow two directions.
Approach: They propose a framework that combines a generalist with a domain-specific specialist without any model fine-tuning or parameter updates.
Outcome: The proposed framework boosts GPT-4o accuracy by 13.8%, deepseek-R1 by 16.8%, and improves a vanilla 7B model from 14.1% to 23.9%.
Revisiting Cross-Lingual Summarization: A Corpus-based Study and A New Benchmark with Improved Annotation (2023.acl-long)

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Challenge: Existing work on cross-lingual summarization (CLS) does not consider crosslingual sources for summarizing.
Approach: They propose a cross-lingual conversation summarization benchmark that explicitly considers source context.
Outcome: The proposed method surpasses baselines on ConvSumX and 3 widely-used manual annotations.
More than Minorities and Majorities: Understanding Multilateral Bias in Language Generation (2024.findings-acl)

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Challenge: Existing studies on bias dataset construction and mitigation focus on one demographic group . in real-world applications, there are more than two demographic groups at risk of the same bias.
Approach: They propose to analyze and reduce biases across multiple demographic groups using a multi-demographic bias dataset.
Outcome: The proposed method can mitigate biases among multiple demographic groups effectively, the authors show .

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