Papers by Jianxing Yu

23 papers
From Selection to Refinement: Iterative Optimization for Instruction Data (2026.acl-long)

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Challenge: Existing methods to optimize instruction tuning datasets face two main challenges: unreasonable pruning of potentially valuable low-quality data and the persistence of noise or semantic drift during revision.
Approach: They propose an automated iterative framework for instruction data optimization that prunes low-quality data and refines low quality data using feedback-driven iteration.
Outcome: The proposed framework outperforms state-of-the-art methods on seven public benchmark datasets with high data efficiency.
Generating Commonsense Reasoning Questions with Controllable Complexity through Multi-step Structural Composition (2025.coling-main)

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Challenge: Existing work mainly learns to map text into questions, lacking a mechanism to control results with desired complexity.
Approach: They propose a novel controllable framework to generate QGs with desired complexity using contextual and commonsense clues from text.
Outcome: The proposed framework can generate complex questions with desired complexity levels.
UnCo: Uncertainty-Driven Collaborative Framework of Large and Small Models for Grounded Multimodal NER (2025.emnlp-main)

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Challenge: Existing methods to identify unseen multimodal entities struggle with limited knowledge and generalization.
Approach: They propose a framework that leverages the strengths of small fine-tuned models and MLLMs to generate unambiguous predictions.
Outcome: Extensive experiments show that the proposed framework retains the in-domain knowledge of small models while utilizing the capabilities of MLLMs to handle unseen entities.
Detecting Emotional Incongruity of Sarcasm by Commonsense Reasoning (2025.coling-main)

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Challenge: Existing methods for sarcasm detection lack commonsense inferential ability when faced with complex situations.
Approach: They propose a commonsense reasoning framework for sarcasm detection based on commonsensense augmentation to supplement commonsence knowledge and infer the incongruity.
Outcome: The proposed framework is able to detect sarcasm in five datasets and is robust to complex scenarios.
Eliciting Implicit Acoustic Styles from Open-domain Instructions to Facilitate Fine-grained Controllable Generation of Speech (2025.emnlp-main)

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Challenge: Current work relies on pre-defined rules or templates to control the style of speech.
Approach: They propose to use open-domain instructions to generate speech with the acoustic style that meets users’ needs based on their instructions.
Outcome: The proposed model can be used to generate speech with the acoustic style that meets users’ needs based on open-domain instructions.
Domain Adaptation for Subjective Induction Questions Answering on Products by Adversarial Disentangled Learning (2024.acl-long)

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Challenge: Existing methods to answer subjective questions about products are often imbalanced across product domains.
Approach: They propose a domain-adaptive model that integrates multiple viewpoints into a good answer by integrating these heterogeneous and inconsistent viewpoints.
Outcome: The proposed model integrates multiple viewpoints into a single answer span and is able to integrate them into the answer.
Low-Resource Generation of Multi-hop Reasoning Questions (2020.acl-main)

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Challenge: Existing methods to generate valid and fluent questions from text are limited and insufficient for training.
Approach: They propose to generate multi-hop reasoning questions from the raw text in a low resource circumstance by deducing over multiple relations on several sentences in the text.
Outcome: The proposed model can be applied to the task of machine reading comprehension and achieve significant performance improvements.
Integrating Semantics and Neighborhood Information with Graph-Driven Generative Models for Document Retrieval (2021.acl-long)

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Challenge: Existing methods for document hashing combine only one of semantics and neighborhood information, lacking a theoretical principle to guide the integration process.
Approach: They propose to encode neighborhood information with a graph-induced Gaussian distribution and integrate it with generative models.
Outcome: The proposed model can be trained as efficiently as state-of-the-art methods on benchmark datasets.
Multimodal Clickbait Detection by De-confounding Biases Using Causal Representation Inference (2024.emnlp-main)

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Challenge: a new method to detect clickbait posts on the Web is needed to detect such posts.
Approach: They propose a method to detect clickbait posts on the Web using latent factors . they use features in multiple modalities to characterize the posts and causal inference to eliminate noise .
Outcome: The proposed method can detect clickbait posts on popular social media platforms with good generalization ability.
Retrieve & Memorize: Dialog Policy Learning with Multi-Action Memory (2021.findings-acl)

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Challenge: Recent years have seen a rapid growth of interest in building task-oriented dialogue systems.
Approach: They propose a retrieve-and-memorize framework to deal with unbalanced distribution of system actions in dialogue datasets.
Outcome: The proposed framework achieves competitive performance among state-of-the-art models on a large-scale task-oriented dialogue dataset.
CoE: A Clue of Emotion Framework for Emotion Recognition in Conversations (2025.acl-long)

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Challenge: Large Language Models (LLMs) are limited in interpreting complex conversational streams.
Approach: They propose a Clue of Emotion framework which integrates key conversational clues to enhance the ERC task.
Outcome: The proposed framework outperforms EmoryNLP, MELD, and IEMOCAP in the role-playing, speaker identification, and emotion reasoning tasks.
Boost, Disentangle, and Customize: A Robust System2-to-System1 Pipeline for Code Generation (2025.findings-acl)

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Challenge: Existing systems 2 methods for code generation are difficult to implement due to the complex hidden reasoning process and heterogeneous data distribution.
Approach: They propose a framework that Boosts reasoning exploration via multi-agent collaboration and Disentangles heterogeneous data into specialized experts.
Outcome: The proposed framework outperforms state-of-the-art methods on APPS and CodeContest benchmarks and achieves 73.8% accuracy on hard problems.
HopWeaver: Cross-Document Synthesis of High-Quality and Authentic Multi-Hop Questions (2026.acl-long)

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Challenge: Multi-Hop Question Answering (MHQA) is a critical benchmark for evaluating the model’s ability to integrate information from diverse sources.
Approach: They propose a framework that synthesizes authentic multi-hop questions without manual annotation without the need for manual guidance.
Outcome: The proposed framework synthesizes bridge and comparison questions without human intervention and achieves comparable or superior quality to human-annotated datasets at a lower cost.
Generating Deep Questions with Commonsense Reasoning Ability from the Text by Disentangled Adversarial Inference (2023.findings-acl)

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Challenge: Existing methods for commonsense question generation produce shallow questions that can be answered by simple word matching.
Approach: They propose a task of commonsense question generation that aims to yield deep-level questions from the text.
Outcome: The proposed model can yield deep-level and to-the-point questions from the text.
Refining BERT Embeddings for Document Hashing via Mutual Information Maximization (2021.findings-emnlp)

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Challenge: Existing unsupervised document hashing methods are mostly established on generative models . due to the difficulties of capturing long dependency structures, these methods rarely model the raw documents directly .
Approach: They propose to learn hash codes from BERT embeddings by modifying existing models . they use mutual information maximization principle to maximize mutual information .
Outcome: The proposed method outperforms existing methods learned from BERT embeddings on three benchmark datasets.
Embedding Dynamic Attributed Networks by Modeling the Evolution Processes (2020.coling-main)

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Challenge: Existing methods to embed nodes into low-dimensional vectors focus on static networks, but in practice, many networks are evolving over time and hence are dynamic, e.g., social networks.
Approach: They propose to extract high-order neighborhood information at each given timestamp and then use an embedding prediction framework to capture the temporal correlations.
Outcome: Extensive experiments on four real-world datasets show that the proposed method outperforms baseline methods for dynamic link prediction and node classification tasks.
Targeting the Needle, Ignoring the Haystack: Anchoring Crucial Cues for Evolving Scam Call Detection via an LLM-Assisted Classifier (2026.findings-acl)

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Challenge: Existing methods for fraud detection on online service platforms often fail to generalize due to the scarcity of labeled data and the continuous evolution of conversational contexts.
Approach: They propose a framework that anchors detection on Semantic Primitives . they prioritize stable evidence over conversational noise to ensure a verifiable fraud tactic .
Outcome: The proposed framework achieves superior robustness and efficiency compared to baselines . it prioritizes stable evidence over diverse conversational noise .
Inferential Machine Comprehension: Answering Questions by Recursively Deducing the Evidence Chain from Text (P19-1)

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Challenge: Experimental results on 3 popular datasets demonstrate the effectiveness of our approach.
Approach: They propose a network to solve the inference problem by decomposing text into a series of attention-based reasoning steps.
Outcome: The proposed network can be used to understand the meanings of given text to answer questions.
Answering Cross-Dimensional Geometric Visual Questions by Multi-constraint Spatial Reasoning (2026.findings-acl)

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Challenge: Existing methods for solving complex visual questions are limited in their ability to represent in a cross-dimensional space.
Approach: They propose a method that can answer complex visual questions using cross-dimensional reasoning.
Outcome: The proposed method can answer complex visual questions in 2D to 3D space with great application value.
Multi-Domain Dialogue Acts and Response Co-Generation (2020.acl-main)

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Challenge: Existing pipeline approaches for task-oriented dialogue systems tend to predict multiple dialogue acts first and use them to assist response generation.
Approach: They propose a neural co-generation model that generates dialogue acts and responses concurrently and preserves semantic structures of multi-domain dialogue acts.
Outcome: The proposed model improves over state-of-the-art models in automatic and human evaluations on a large-scale dataset.
Efficient Document Retrieval by End-to-End Refining and Quantizing BERT Embedding with Contrastive Product Quantization (2022.emnlp-main)

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Challenge: Existing semantic hashing methods only learn a binary code for each document and use Hamming distance to evaluate document distances.
Approach: They propose to leverage BERT embeddings to perform efficient retrieval based on product quantization technique . they transform original BERT embedded codewords and feed it into a probabilistic product quantizer module .
Outcome: The proposed method outperforms current state-of-the-art methods on three benchmarks.
Leveraging BERT and TFIDF Features for Short Text Clustering via Alignment-Promoting Co-Training (2024.emnlp-main)

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Challenge: Existing clustering methods rely on keyword information, but they lack this information.
Approach: They propose a CO**-**T**raining **C**lustering framework to make use of BERT and TFIDF features.
Outcome: The proposed framework outperforms existing SOTA methods on eight datasets.
Answering Complex Geographic Questions by Adaptive Reasoning with Visual Context and External Commonsense Knowledge (2025.acl-long)

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Challenge: a new task of answering geographic reasoning questions based on the given image is proposed . the task requires identifying the objects in the image and understanding the background context .
Approach: They propose a task of answering geographic reasoning questions based on the given image . they analyze the image and describe its fine-grained content by text and keywords .
Outcome: The proposed method can be used to answer geographic reasoning questions based on an image . it can be applied to a large-scale dataset with 41,329 samples .

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