Papers by Hongyi Zhang

9 papers
Towards Explainable Chinese Native Learner Essay Fluency Assessment: Dataset, Tasks, and Method (2024.findings-emnlp)

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Challenge: Existing GEC datasets in Chinese fail to consider specific grammatical error types and overlook cross-sentence grammamatical errors.
Approach: They propose to use Chinese essay fluency assessment to assess essay fluencies along with coarse and fine-grained errors and corrections to improve explainability.
Outcome: The proposed dataset encapsulates essay fluency scores along with both coarse and fine-grained errors and corrections.
EscapeBench: Towards Advancing Creative Intelligence of Language Model Agents (2025.acl-long)

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Challenge: Existing language model agents excel in planning and reasoning, but lack creativity in unfamiliar environments.
Approach: They propose a benchmark suite of room escape game environments to challenge agents with creative reasoning, unconventional tool use and iterative problem-solving to uncover implicit goals.
Outcome: The proposed framework can perform with 40% fewer steps and hints and performs robustly across difficulty levels.
Connective Prediction for Implicit Discourse Relation Recognition via Knowledge Distillation (2023.acl-long)

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Challenge: Existing methods for implicit discourse relation recognition (IDRR) lack connectives, which is a major challenge in discourse analysis research.
Approach: They propose a method to predict latent correlations between connectives and discourse relations using a knowledge distillation approach.
Outcome: The proposed method outperforms state-of-the-art models on coarse-grained and fine-grain discourse relations and can be transferred to explicit discourse relation recognition and achieve acceptable performance.
Toward Optimal LLM Alignments Using Two-Player Games (2025.findings-emnlp)

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Challenge: Alignment of large language models (LLM) is a process that ensures the model’s responses to user prompts align with human intentions and social values.
Approach: They propose an alignment method based on a two-agent game consisting of an adversarial agent and a defensive agent.
Outcome: The proposed method improves on a two-agent game with an adversarial agent and a defensive agent.
TurnBack: A Geospatial Route Cognition Benchmark for Large Language Models through Reverse Route (2025.emnlp-main)

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Challenge: Existing studies on large language models have limited evaluation of their geospatial cognition . a unified framework for evaluating geospcial cognition in LLMs remains absent .
Approach: They propose a benchmark to evaluate the geospatial route cognition of Large Language Models . they propose 'pathbuilder' tool for converting natural language instructions into navigation routes .
Outcome: The proposed framework and metrics evaluate 9 state-of-the-art LLMs on route reversal task.
ModelingAgent: Bridging LLMs and Mathematical Modeling for Real-World Challenges (2025.findings-emnlp)

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Challenge: Existing benchmarks for large language models fail to reflect real-world complexity . existing benchmarks often fail to capture real-life problems .
Approach: They propose a benchmark that features real-world-inspired, open-ended problems from competitions . they propose 'ModelingBench' that supports multiple valid solutions .
Outcome: The proposed framework outperforms baselines and produces well-grounded, creative solutions.
Efficient Federated Learning on Knowledge Graphs via Privacy-preserving Relation Embedding Aggregation (2022.findings-emnlp)

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Challenge: Existing frameworks that share entity embeddings of knowledge graphs (KGs) would incur a severe privacy leakage.
Approach: They propose a new attack method that aims to recover the original embedding information based on the known entity embeddables of FedE.
Outcome: The proposed framework can be used to infer whether a specific relation exists in a private client.
Selective Prefix Tuning for Pre-trained Language Models (2024.findings-acl)

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Challenge: Existing methods for fine-tuning pre-trained models are time-consuming and memory-inefficient.
Approach: They propose a method that inserts learnable vectors into each Transformer layer . they propose SL to encourage diversity in prefix tokens .
Outcome: Extensive experiments validate the effectiveness of Prefix Tuning in sentence and token classification tasks.
TOREE: Evaluating Topic Relevance of Student Essays for Chinese Primary and Middle School Education (2024.findings-acl)

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Challenge: Existing research on Automatic Essay Scoring (AES) for Chinese essays has overlooked topic relevance and lacks detailed feedback.
Approach: They propose to use TOREE to assess topic relevance in Chinese primary and middle school students’ essays to improve automatic and human evaluations.
Outcome: The proposed method significantly improves both automatic and human evaluations across four diverse LLMs.

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