Papers by Ling Shi

22 papers
UniVocal: Unified Speech-Singing Code-Switching Synthesis (2026.acl-long)

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Challenge: Existing systems cannot automatically determine when to switch between modes based on text content.
Approach: They propose a unified framework that implicitly infers vocal modes from text context to pioneer SCS Synthesis.
Outcome: The proposed framework infers vocal modes solely from text context to pioneer SCS Synthesis.
FuxiTranyu: A Multilingual Large Language Model Trained with Balanced Data (2024.emnlp-industry)

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Challenge: Large language models exhibit significant performance discrepancies between high- and low-resource languages.
Approach: They present an open-source multilingual LLM with 8 billion parameters and a multilingual instruction dataset.
Outcome: The proposed model achieves consistent multilingual representations across languages.
ActPlan-1K: Benchmarking the Procedural Planning Ability of Visual Language Models in Household Activities (2024.emnlp-main)

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Challenge: Large language models (LLMs) have been adopted to process textual task description and accomplish procedural planning in embodied AI tasks because of their powerful reasoning ability.
Approach: They propose to evaluate the planning ability of large language models and multi-modal counterfactual vision language models (VLMs) using a multi-factual household activity simulator and a chatGPT task description to evaluate their reasoning ability.
Outcome: The proposed benchmark evaluates the planning ability of multi-modal and counterfactual vision language models on a household activity simulator and a chatGPT task description.
From Insight to Action: A Novel Framework for Interpretability-Guided Data Selection in Large Language Models (2026.acl-long)

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Challenge: Recent research in mechanistic interpretability has revealed that Large Language models contain disentangled, human-understandable components.
Approach: They propose a framework that first identifies causal task features through frequency recall and interventional filtering, then selects “Feature-Resonant Data” that maximally activates task features for fine-tuning.
Outcome: The proposed framework outperforms existing models on mathematical reasoning, summarization, and translation tasks while using only 50% of the data.
Spiral of Silence in Large Language Model Agents (2025.findings-emnlp)

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Challenge: Existing theories of Spiral of Silence do not apply to large language models .
Approach: They propose an evaluation framework for examining SoS in large language models . they consider four controlled conditions that vary the availability of "History" and "Persona" signals .
Outcome: The proposed framework examines the SoS-like dynamics in large language models . it shows that history and persona together produce strong majority dominance .
OpenEval: Benchmarking Chinese LLMs across Capability, Alignment and Safety (2024.acl-demos)

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Challenge: a rapid development of Chinese large language models poses big challenges for efficient LLM evaluation.
Approach: They propose an evaluation testbed that benchmarks Chinese LLMs across capability, alignment and safety.
Outcome: The evaluation platform OpenEval benchmarks Chinese LLMs across capability, alignment and safety.
CHBias: Bias Evaluation and Mitigation of Chinese Conversational Language Models (2023.acl-long)

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Challenge: Existing studies on social biases in language models have focused on only English.
Approach: They propose to use a Chinese dataset for bias evaluation and mitigation of Chinese conversational language models.
Outcome: The proposed dataset includes under-explored bias categories, such as ageism and appearance biases, which received less attention in previous studies.
R2IF: Aligning Reasoning with Decisions via Composite Rewards for Interpretable LLM Function Calling (2026.acl-long)

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Challenge: Existing RL-based approaches to function calling are misaligned between reasoning processes and tool-call decisions.
Approach: They propose a reasoning-aware RL framework for interpretable function calling . they integrate a composite reward integrating format/correctness constraints, CER, and SMV .
Outcome: Experiments on BFCL/ACEBench show R2IF outperforms baselines by 34.62% with positive Average CoT Effectiveness.
CT-FineBench: A Diagnostic Fidelity Benchmark for Fine-Grained Evaluation of CT Report Generation (2026.acl-long)

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Challenge: Existing evaluation metrics for radiology report generation focus on lexical overlap and entity matching.
Approach: They propose a benchmark to evaluate the fine-grained factual consistency of CT reports . they use a question-answering process to query a machine-generated report .
Outcome: The proposed benchmark evaluates the fine-grained factual consistency of CT reports . it correlates better with expert clinical assessment and is more sensitive to errors .
PresentAgent: Multimodal Agent for Presentation Video Generation (2025.emnlp-demos)

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Challenge: Existing methods for generating static slides or text summaries are limited to producing narrated presentations.
Approach: They propose a multimodal agent that transforms long-form documents into narrated presentations.
Outcome: The present agent produces fully synchronized visual and spoken content that closely mimics human-style presentations.
Think-Search-Patch: A Retrieval-Augmented Reasoning Framework for Repository-Level Code Repair (2025.emnlp-industry)

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Challenge: Large language models suffer from multiple-file coding scenarios with strong inter-file dependencies . experimental results show that large language models exhibit inadequate performance in multi-file scenarios .
Approach: They propose a retrieval-augmented reasoning framework for repository-level code repair . they use a dataset to generate standardized patches based on the key snippets .
Outcome: The proposed framework improves retrieval accuracy and repair success on SWE-bench Lite . it surpasses models with larger size in managing extensive code contexts and fixing bugs spanning across multiple files.
Praetor: A Fine-Grained Generative LLM Evaluator with Instance-Level Customizable Evaluation Criteria (2025.acl-long)

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Challenge: Existing evaluation methods are inadequate to evaluate large language models (LLMs).
Approach: They propose a fine-grained generative LLM evaluator with instance-level customazable evaluation criteria that can be used to evaluate large language models.
Outcome: The proposed model outperforms existing LLM evaluators and instruction-tuned LLMs on multiple benchmarks and sets new SOTA results.
Lost in Pronunciation: Detecting Chinese Offensive Language Disguised by Phonetic Cloaking Replacement (2025.emnlp-industry)

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Challenge: Phonetic Cloaking Replacement (PCR) is a problem in content moderation in China.
Approach: They organize PCR into a four-way surface-form taxonomy and compile PCR-ToxiCN, a dataset of 500 phonetically cloaked offensive posts gathered from the RedNote platform.
Outcome: The proposed model achieves only an F1-score and zero-shot chain-of-thought prompting pushes performance even lower.
From Curated Data to Scalable Models: Continual Pre-training of Dense and MoE Large Language Models for Tibetan (2026.acl-long)

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Challenge: Large language models have achieved remarkable success across a wide range of tasks, yet their performance remains heavily biased toward high-resource languages.
Approach: They propose a pipeline for advancing Tibetan language modeling through multilingual continual pre-training with Tibetan, Chinese, and English.
Outcome: The proposed model outperforms open-source and Tibetan-focused models on diverse tasks.
Identifying the Achilles’ Heel: An Iterative Method for Uncovering Factual Errors in Large Language Models (2026.findings-acl)

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Challenge: Current methods for evaluating LLMs’ veracity are limited by the need for extensive human labor, test data contamination, or limited scope, hindering efficient and effective exposure of errors.
Approach: They propose a framework that extracts fact triplets to generate diverse question types using rule-based natural language processing techniques.
Outcome: The proposed framework can trigger factual errors in up to 55% of questions in large LLMs while maintaining coverage of questions.
Learning to Ask: When LLM Agents Meet Unclear Instruction (2025.emnlp-main)

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Challenge: Despite their impressive capabilities, LLMs struggle with complex computations and delivering accurate, timely information.
Approach: They propose a framework that prompts LLM agents to ask questions when they encounter obstacles due to unclear instructions and an automated evaluation tool called ToolEvaluator.
Outcome: The proposed framework outperforms existing frameworks for tool learning in the Noisy ToolBench.
DiplomacyAgent: Do LLMs Balance Interests and Ethical Principles in International Events? (2025.emnlp-main)

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Challenge: a new study examines the safety implications of large language models in diplomatic positions . it identifies potential risks and ideological biases that could arise from LLMs .
Approach: They propose an LLM-based multi-agent system for diplomatic position analysis . they propose ethical constraint measures to enhance the safety of LLMs .
Outcome: The proposed system assesses the safety implications of large language models in diplomacy . it reveals that LLMs could exhibit a strong bias towards interests, leading to unsafe decisions .
Benchmarking Web Agent Safety under E-commerce Deceptive Interfaces (2026.acl-long)

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Challenge: Existing web agents are highly susceptible to multiple classes of deceptive interfaces, but they are not designed to mitigate these failures.
Approach: They propose a lightweight plugin framework that allows controlled injection of deceptive interface patterns into existing web environments.
Outcome: The proposed framework enables controlled injection of deceptive interface patterns into web environments.
Hazards in Daily Life? Enabling Robots to Proactively Detect and Resolve Anomalies (2025.naacl-long)

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Challenge: Existing household robots are inability to recognize potential problems or dangers in home environments.
Approach: They propose a task of creating anomaly scenarios using generative models instead of manually labeled data to build simulated environments.
Outcome: The proposed framework outperforms existing models in terms of task description and scene diversity.
CRiskEval: A Chinese Multi-Level Risk Evaluation Benchmark Dataset for Large Language Models (2025.acl-long)

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Challenge: Large language models exhibit a risk propensity of more than 40%, and are prone to self-sustainability, power seeking and other dangerous goals as the size of models increases.
Approach: They propose a Chinese dataset to gauge the risk proclivities inherent in large language models such as resource acquisition and malicious coordination.
Outcome: The proposed dataset consists of 14,888 questions that simulate scenarios related to predefined 7 types of frontier risks.
Self-imitation Learning for Action Generation in Text-based Games (2023.eacl-main)

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Challenge: Text-based games are situated systems where the game agents observe textual descriptions, and generate textual commands to interact with the environment.
Approach: They propose a confidence-based self-imitation model to generate action candidates for the RL agent by exploiting past valuable trajectories to adapt a pre-trained language model towards a target game.
Outcome: The proposed model performs well in multiple challenging games.
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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