Papers by Qing Zhu

26 papers
RETAIL: Towards Real-world Travel Planning for Large Language Models (2025.emnlp-main)

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Challenge: Existing travel planning systems assume users provide explicit queries, limiting their practical utility.
Approach: They propose a dataset RETAIL which supports decision-making for implicit queries while covering explicit queries.
Outcome: The proposed model achieves a 1.0% pass rate, suggesting real-world travel planning remains challenging.
Python is Not Always the Best Choice: Embracing Multilingual Program of Thoughts (2024.emnlp-main)

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Challenge: Program of Thoughts (PoT) is an approach characterized by its executable intermediate steps, which ensure the accuracy of the logical calculations in the reasoning process.
Approach: They propose a task and model agnostic approach which harnesses strength and diversity from various languages to achieve better performance across all tasks.
Outcome: The proposed approach outperforms Python Self-Consistency in almost all tasks and models and achieves comparable or superior performance on ChatGPT.
CoQuIR: A Comprehensive Benchmark for Code Quality-Aware Information Retrieval (2026.acl-long)

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Challenge: Existing benchmarks focus on functional relevance while neglecting code quality.
Approach: They propose a multilingual benchmark to evaluate quality-aware code retrieval . they include fine-grained quality annotations over 42,725 queries and 134,907 code snippets .
Outcome: The proposed benchmarks show that state-of-the-art models fail to separate buggy or insecure code from robust counterparts.
Make Some Noise: Unlocking Language Model Parallel Inference Capability through Noisy Training (2024.emnlp-main)

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Challenge: Existing speculative decoding methods require additional model structure and training processes to assist the model for draft token generation.
Approach: They propose a make some noise training framework that introduces some noise at the input for the model to learn the denoising task.
Outcome: The proposed model improves inference speed by 2.3-2.7x times without compromising model performance.
Modeling Multi-Dimensional Cognitive States in Large Language Models under Cognitive Crowding (2026.findings-acl)

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Challenge: Existing Large Language Models (LLMs) mainly address isolated tasks such as emotion analysis or stance detection.
Approach: They propose a large-scale model that combines large-level annotations with hyperbolic space to model human cognitive states.
Outcome: The proposed model outperforms baseline models on cognitive dimensions on single dimension tasks while retaining strong hierarchical structure.
When Efficiency Becomes a Vulnerability: Computational Cost Attacks on WebAgents (2026.acl-long)

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Challenge: Existing WebAgents suffer from computational cost attacks due to long reasoning processes and excessive computational cost.
Approach: They propose a framework that generates adversarial prompts and a reinforcement learning-enhanced selector to identify the most effective perturbations.
Outcome: The proposed framework exploits large language models to generate diverse adversarial prompts and a reinforcement learning–enhanced selector to identify the most effective perturbations.
Reasoning under Uncertainty: Efficient LLM Inference via Unsupervised Confidence Dilution and Convergent Adaptive Sampling (2025.emnlp-main)

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Challenge: Large language models suffer from overconfidence and computational inefficiency due to fixed computation budgets and miscalibrated confidence estimates.
Approach: They propose a framework for computationally efficient, trustworthy reasoning under uncertainty using Diversity-Aware Self-Signal Dilution and Convergent Adaptive Weighted Sampling techniques.
Outcome: The proposed framework reduces inference cost by 70% while maintaining accuracy levels while reducing inference costs.
Large-Scale Multimodal Knowledge Graph about Classical Chinese Poetry: Fine-grained Method and Comprehensive Evaluation (2026.findings-acl)

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Challenge: Existing studies on classical Chinese poetry are limited by modality constraints, dataset size, or the level of refinement.
Approach: They propose to construct a large-scale and fine-grained multimodal knowledge graph of classical Chinese poetry using an informative ontology graph and a text-image alignment method.
Outcome: The proposed method collects knowledge about classical Chinese poetry from ontology graphs and performs four tasks that demonstrate its comprehensiveness and high quality.
Marco-Bench-MIF: On Multilingual Instruction-Following Capability of Large Language (2025.acl-long)

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Challenge: Existing datasets for instruction-following are monolingual and centered on English . existing data are unable to capture linguistic and cultural subtle differences .
Approach: They propose an extension of IFEval to a localized multilingual version called Marco-Bench-MIF . their benchmark addresses linguistic constraints and cultural references via translation and verification .
Outcome: The proposed extension of IFEval to a localized multilingual version covers 30 languages with varying levels of localization.
Multi-Granularity History and Entity Similarity Learning for Temporal Knowledge Graph Reasoning (2024.emnlp-main)

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Challenge: Existing models for Temporal Knowledge Graph reasoning capture repetitive history, ignoring the entity's multi-hop neighbour history which can provide valuable background knowledge for TKG reasoning.
Approach: They propose a multi-granularity history and entity similarity learning model which captures the similarity between entities.
Outcome: The proposed model can predict unknown facts based on historical information, but most existing models ignore multi-hop neighbour history which can provide valuable background knowledge for TKG reasoning.
Explanation in the Era of Large Language Models (2024.naacl-tutorials)

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Challenge: Explanation has long been a part of communication, where humans use language to elucidate each other and transmit information about mechanisms of events.
Approach: They review the opportunities and challenges of explanations in the era of large language models and examine how they can be used to generate explanations.
Outcome: The proposed methods are based on the models of large language models (LLMs) and their opaque nature.
SmartTrim: Adaptive Tokens and Attention Pruning for Efficient Vision-Language Models (2024.lrec-main)

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Challenge: Experimental results show that SmartTrim accelerates the original model by 2-3 times with minimal performance degradation.
Approach: They propose an adaptive acceleration framework which prunes redundant token representations and attention heads within each layer of the original model.
Outcome: The proposed framework accelerates the original model by 2-3 times with minimal performance degradation across vision-language tasks.
Neural Topic Modeling via Contextual and Graph Information Fusion (2025.emnlp-main)

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Challenge: Existing topic models generate uninformative and incoherent topics that hinder interpretable insights from managing textual data.
Approach: They propose to incorporate contextual and graph information to improve the variational autoencoder framework by combining contextual and bag-of-words information.
Outcome: The proposed framework generates more coherent and diverse topics on three benchmark datasets and achieves strong performance on automatic and manual evaluations.
MMAPG: A Training-Free Framework for Multimodal Multi-hop Question Answering via Adaptive Planning Graphs (2025.emnlp-main)

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Challenge: Existing multimodal question answering models rely on sequential retrieval and reasoning, but this single-path paradigm makes them vulnerable to errors due to misleading intermediate steps.
Approach: They propose a multimodal multi-hop question answering framework guided by an Adaptive Planning Graph . they propose modality-specific strategies that dynamically adapt to distinct data types .
Outcome: The proposed framework outperforms existing models that rely on training.
FoldMoE: Efficient Long Sequence MoE Training via Attention-MoE Pipelining (2025.acl-long)

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Challenge: Existing approaches to training LLMs with Mixture-of-Experts (MoE) architecture on long sequences are limited by the insufficient computation.
Approach: They propose a MoE training system that enables token-level overlapping across entire Transformer blocks through novel attention-MoE pipelining.
Outcome: The proposed system achieves 1.49x and 2.72x speedup over state-of-the-art token-level overlapping and non-overlapping baselines on GPT-MoE models with sequences up to 32K tokens.
PoLLMgraph: Unraveling Hallucinations in Large Language Models via State Transition Dynamics (2024.findings-naacl)

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Challenge: Existing studies have recognized hallucination as a notable concern in large autoregressive language models (LLMs).
Approach: They propose a polygraph for large language models that detects "hallucination" they demonstrate that hallucination can be detected by tractable probabilistic models .
Outcome: The proposed model outperforms state-of-the-art methods on open-source LLMs by 20% on TruthfulQA benchmarks.
VSCBench: Bridging the Gap in Vision-Language Model Safety Calibration (2025.findings-acl)

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Challenge: Existing safety calibration methods focus on model undersafety, where the model responds to hazardous queries, while neglecting oversafetiness, where models refuse to answer safe queries.
Approach: They propose safety calibration which addresses both undersafety and oversafetiness by comparing model responses to a novel dataset of 3,600 image-text pairs.
Outcome: The proposed methods have been used to evaluate safety calibration across image-centric and text-centric scenarios.
HD-NDEs: Neural Differential Equations for Hallucination Detection in LLMs (2025.acl-long)

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Challenge: Hallucination is a significant challenge for large language models, but current methods struggle when non-factual information arises in the early or mid-sequence of outputs, reducing their reliability.
Approach: They propose a method that captures the full dynamics of large language models by using neural differential equations to assess the truthfulness of statements.
Outcome: The proposed method achieves 14% improvement in AUC-ROC on the True-False dataset compared to state-of-the-art methods.
Improving Factual Consistency in Abstractive Summarization with Sentence Structure Pruning (2024.lrec-main)

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Challenge: Abstractive summarization models suffer from factual inconsistency problem . post-editing methods focus on replacing suspicious entities, failing to modify incorrect content hidden in sentence structures.
Approach: They propose to use sentence pruning operation to correct possible errors . they propose to apply sentence pruning operations to the syntactic dependency tree .
Outcome: The proposed method improves factual consistency on the FRANK dataset compared with baselines . it is model-independent and can serve as the final step in ensuring factual consistentness.
Cause-CSD: A Challenge Multimodal Conversational Stance Cause Detection Dataset and Effective Method (2026.findings-acl)

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Challenge: Existing stance detection methods treat opinions as surface-level labels, overlooking conversational evidence behind stance expressions.
Approach: They propose a task that jointly identifies stance polarity and contextual evidence . they propose stance-cause Detection language model that leverages explicit context reasoning .
Outcome: The proposed task outperforms baseline methods on text-only and multimodal subtasks.
Cognitive Policy-Driven LLM for Diagnosis and Intervention of Cognitive Distortions in Emotional Support Conversation (2026.acl-long)

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Challenge: Existing models for ESC ignore cognitive distortions in help-seekers' expressions . current models provide basic emotional comfort, rather than helping help- seekers address psychological distress at a deeper cognitive level.
Approach: They propose a Large Language Model framework to enhance LLMs' ability to diagnose and intervene cognitive distortions in help-seekers.
Outcome: The proposed framework outperforms 15 state-of-the-art baselines in terms of distortion diagnosis accuracy, intervention strategy effectiveness, and safety risk control.
HydraRAG: Structured Cross-Source Enhanced Large Language Model Reasoning (2025.emnlp-main)

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Challenge: Current RAG system retrieves evidence from knowledge graphs and text documents but has limitations in multi-hop reasoning, multi-entity questions, and source verification.
Approach: They propose a training-free framework that unifies graph topology, document semantics, and source reliability to support deep, faithful reasoning in large language models.
Outcome: The proposed framework outperforms the current hybrid model-based model-driven system by 20.3% and 30.1% on seven benchmark datasets.
Reference-free Hallucination Detection for Large Vision-Language Models (2024.findings-emnlp)

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Challenge: Large vision-language models exhibit excellent ability in language understanding, question answering, and conversations of visual inputs, but they are prone to producing hallucinations.
Approach: They propose to use supervised uncertainty quantification methods to detect hallucinations in large vision-language models.
Outcome: The proposed methods outperform the others in detecting hallucinations on four representative LVLMs across two different tasks.
ContrastKV: Robust KV Cache Eviction via Contrastive Signal Fusion for Multi-Query Generalization (2026.acl-long)

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Challenge: Existing query-agnostic approaches rely on a single proxy query, leading to fragile eviction decisions under high evict ratios.
Approach: They propose a query-agnostic KV cache eviction algorithm that exploits complementary semantic and non-semantic signals.
Outcome: Experiments show that the proposed algorithm outperforms state-of-the-art methods while retaining up to 92% accuracy with only 20% of the KV cache budget.
Turning Trash into Treasure: Accelerating Inference of Large Language Models with Token Recycling (2025.acl-long)

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Challenge: Large Language Models (LLMs) generate only one token at each decoding step, leading to high latency.
Approach: They propose a speculative decoding paradigm that stores tokens in an adjacency matrix and employs a breadth-first-search algorithm to construct a draft tree.
Outcome: The proposed method outperforms existing train-free methods by 30% and even a training method by 25%.
SpecCoT: Accelerating Chain-of-Thought Reasoning through Speculative Exploration (2025.findings-emnlp)

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Challenge: Large Reasoning Models suffer from high inference latency due to lengthy reasoning chains.
Approach: They propose a collaborative framework that combines large and small models for effective reasoning.
Outcome: The proposed framework reduces inference latency by 1.7-4.1 while maintaining comparable accuracy to standard large model inference.

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