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Jiaxin ZHANG

53 accepted papers

2026

Fair Decision Utility in Human-AI Collaboration: Interpretable Confidence Adjustment for Humans with Cognitive Disparities

ICLR 2026poster

In AI-assisted decision-making, human decision-makers finalize decisions by taking into account both their human confidence and AI confidence regarding specific outcomes. In practice, they often exhibit heterogeneous cognitive capacities, causing their confidence to deviate, sometimes significantly…

Cited by 0SourceScholar
2026

GeWu: A Culturally-Grounded Chinese Benchmark for Multi-Stage Social Bias Evaluation in Large Language Models

AAAI 2026technical

With the rapid deployment of Chinese large language models (LLMs), culturally-grounded bias evaluation remains understudied due to the dominance of English benchmarks and simplistic Chinese scenarios. To address this, we propose GeWu, a comprehensive benchmark featuring a culturally-aware dataset of

Cited by 0SourcePDFScholar
2026

LaTtE-Flow: Layerwise Timestep-Expert Flow-based Transformer

ICML 2026poster

Recent advances in multimodal foundation models unifying image understanding and generation have opened exciting avenues for tackling a wide range of vision-language tasks within a single framework. Despite progress, existing unified models typically require extensive pretraining, and many of these …

Cited by 0SourceScholar
2026

Nudging the Boundaries of LLM Reasoning

ICLR 2026poster

Current online reinforcement learning (RL) algorithms like GRPO share a key limitation in LLM reasoning: they cannot learn from problems that are "unsolvable" to the model. In other words, they can only improve performance on problems where the model is capable of exploring the correct answer. If a…

Cited by 0SourcecodeScholar
2026

The Silent Amplifier: In-Context Examples Fuel Bias in Large Language Models

AAAI 2026technical

In-context learning (ICL) has proven to be adept at adapting large language models (LLMs) to downstream tasks without parameter updates, based on a few demonstration examples. Prior work has found that the ICL performance is susceptible to the selection of examples in prompt and made efforts to stab

Cited by 0SourcePDFScholar
2026

What's Wrong with Synthetic Data for Scene Text Recognition? A Strong Synthetic Engine with Diverse Simulations and Self-Evolution

CVPR 2026

Large-scale and categorical-balanced text data is essential for training effective Scene Text Recognition (STR) models, which is hard to achieve when collecting real data. Synthetic data offers a cost-effective and perfectly labeled alternative. However, its performance often lags behind, revealing

Cited by 0SourcecodeScholar
2025

CMMaTH: A Chinese Multi-modal Math Skill Evaluation Benchmark for Foundation Models

COLING 2025main

With the rapid advancements in multimodal large language models, evaluating their multimodal mathematical capabilities continues to receive wide attention. Although datasets such as MathVista have been introduced for evaluating mathematical capabilities in multimodal scenarios, there remains a lack…

2025

DocKylin: A Large Multimodal Model for Visual Document Understanding with Efficient Visual Slimming

AAAI 2025technical

Current multimodal large language models (MLLMs) face significant challenges in visual document understanding (VDU) tasks due to the high resolution, dense text, and complex layouts typical of document images. These characteristics demand a high level of detail perception ability from MLLMs. While i…

Cited by 8SourcePDFScholar
2025

Gradient-guided Attention Map Editing: Towards Efficient Contextual Hallucination Mitigation

NAACL 2025findings

In tasks such as summarization and open-book question answering (QA), Large Language Models (LLMs) frequently experience “contextual hallucination”, where they generate irrelevant or incorrect responses despite having access to accurate information in the input. This issue often stems from the model…

2025

Heuristic-based Search Algorithm in Automatic Instruction-focused Prompt Optimization: A Survey

ACL 2025finding

Recent advances in Large Language Models(LLMs) have led to remarkable achievements across a variety of Natural Language Processing(NLP) tasks, making prompt engineering increasingly central to guiding model outputs. While manual methods (e.g., “chain-of-thought,” “step-by-step” prompts) can be effec…

Cited by 0SourcePDFScholar
2025

LLMs Trust Humans More, That’s a Problem! Unveiling and Mitigating the Authority Bias in Retrieval-Augmented Generation

ACL 2025long

Retrieval-Augmented Generation (RAG) has been proven to be an effective approach to address the hallucination problem in large language models (LLMs). In current RAG systems, LLMs typically need to synthesize knowledge provided by two main external sources (user prompts and an external database) to…

Cited by 0SourcePDFScholar
2025

Modality-Specialized Synergizers for Interleaved Vision-Language Generalists

ICLR 2025poster

Recent advancements in Vision-Language Models (VLMs) have led to the emergence of Vision-Language Generalists (VLGs) capable of understanding and generating both text and images. However, seamlessly generating an arbitrary sequence of text and images remains a challenging task for the current VLGs.…

Cited by 0SourcePDFScholar
2025

R2I-Bench: Benchmarking Reasoning-Driven Text-to-Image Generation

EMNLP 2025

Reasoning is a fundamental capability often required in real-world text-to-image (T2I) generation, e.g., generating “a bitten apple that has been left in the air for more than a week” necessitates understanding temporal decay and commonsense concepts. While recent T2I models have made impressive pro

Cited by 0SourcePDFScholar
2025

RedundancyLens: Revealing and Exploiting Visual Token Processing Redundancy for Efficient Decoder-Only MLLMs

ACL 2025finding

Current Multimodal Large Language Model (MLLM) architectures face a critical tradeoff between performance and efficiency: decoder-only architectures achieve higher performance but lower efficiency, while cross-attention-based architectures offer greater efficiency but lower performance. The key dist…

2025

Reframing Gaussian Splatting Densification with Complexity-Density Consistency of Primitives

NeurIPS 2025poster

The essence of 3D Gaussian Splatting (3DGS) training is to smartly allocate Gaussian primitives, expressing complex regions with more primitives and vice versa. Prior researches typically mark out under-reconstructed regions in a rendering-loss-driven manner. However, such a loss-driven strategy i…

Cited by 0SourceScholar
2025

SEE: Strategic Exploration and Exploitation for Cohesive In-Context Prompt Optimization

ACL 2025long

Designing optimal prompts for Large Language Models (LLMs) is a complex and resource-intensive task, often requiring substantial human expertise. Existing approaches typically separate the optimization of prompt instructions and in-context learning examples, leading to incohesive, suboptimal results…

Cited by 0SourcePDFScholar
2025

The Elephant in the Room: Exploring the Role of Neutral Words in Language Model Group-Agnostic Debiasing

ACL 2025finding

Large Language Models (LLMs) are increasingly integrated into our daily lives, raising significant ethical concerns, especially about perpetuating stereotypes.While group-specific debiasing methods have made progress, they often fail to address multiple biases simultaneously. In contrast, group-agno…

Cited by 0SourcePDFScholar
2025

Towards Statistical Factuality Guarantee for Large Vision-Language Models

EMNLP 2025

Advancements in Large Vision-Language Models (LVLMs) have demonstrated impressive performance in image-conditioned text generation; however, hallucinated outputs–text that misaligns with the visual input–pose a major barrier to their use in safety-critical applications. We introduce ConfLVLM, a conf

Cited by 0SourcePDFScholar
2025

UGMathBench: A Diverse and Dynamic Benchmark for Undergraduate-Level Mathematical Reasoning with Large Language Models

ICLR 2025poster

Large Language Models (LLMs) have made significant strides in mathematical reasoning, underscoring the need for a comprehensive and fair evaluation of their capabilities. However, existing benchmarks often fall short, either lacking extensive coverage of undergraduate-level mathematical problems or…

Cited by 1SourcePDFScholar
2025

UGPhysics: A Comprehensive Benchmark for Undergraduate Physics Reasoning with Large Language Models

ICML 2025poster

Large language models (LLMs) have demonstrated remarkable capabilities in solving complex reasoning tasks, particularly in mathematics. However, the domain of physics reasoning presents unique challenges that have received significantly less attention. Existing benchmarks often fall short in evaluat…

2024

A Path Planning Approach for Multi-AUV Systems With Concurrent Stationary Node Access and Adaptive Sampling

RA-L 2024

Stationary node data retrieval and adaptive sampling are two important tasks in marine environment monitoring based on autonomous underwater vehicles (AUVs). Enabling AUVs to carry out these two heterogeneous tasks within a single deployment is crucial for the efficient utilization of hardware resou

Cited by 20SourceScholar
2024

A Vision-Centric Approach for Static Map Element Annotation

ICRA 2024poster

The recent development of online static map element (a.k.a. HD Map) construction algorithms has raised a vast demand for data with ground truth annotations. However, available public datasets currently cannot provide high-quality training data regarding consistency and accuracy. To this end, we pres…

Cited by 3SourcecodeScholar
2024

Discriminant Distance-Aware Representation on Deterministic Uncertainty Quantification Methods

AISTATS 2024poster

Uncertainty estimation is a crucial aspect of deploying dependable deep learning models in safety-critical systems. In this study, we introduce a novel and efficient method for deterministic uncertainty estimation called Discriminant Distance-Awareness Representation (DDAR). Our approach involves co…

Cited by 0SourcePDFScholar
2024

Divide-Conquer-Reasoning for Consistency Evaluation and Automatic Improvement of Large Language Models

EMNLP 2024industry

Evaluating the quality and consistency of text generated by Large Language Models (LLMs) poses a significant, yet unresolved challenge for industry research. We propose , an automated framework for evaluating and improving the consistency of LLM-generated texts using a divide-conquer-reasoning appro…

2024

Do You Know What You Are Talking About? Characterizing Query-Knowledge Relevance For Reliable Retrieval Augmented Generation

EMNLP 2024main

Language models (LMs) are known to suffer from hallucinations and misinformation. Retrieval augmented generation (RAG) that retrieves verifiable information from an external knowledge corpus to complement the parametric knowledge in LMs provides a tangible solution to these problems. However, the ge…

Cited by 0SourcePDFScholar
2024

DocRes: A Generalist Model Toward Unifying Document Image Restoration Tasks

CVPR 2024poster

Document image restoration is a crucial aspect of Document AI systems as the quality of document images significantly influences the overall performance. Prevailing methods address distinct restoration tasks independently leading to intricate systems and the incapability to harness the potential syn…

2024

GeoEval: Benchmark for Evaluating LLMs and Multi-Modal Models on Geometry Problem-Solving

ACL 2024findings

Recent advancements in large language models (LLMs) and multi-modal models (MMs) have demonstrated their remarkable capabilities in problem-solving. Yet, their proficiency in tackling geometry math problems, which necessitates an integrated understanding of both textual and visual information, has n…

2024

Holistic Evaluation for Interleaved Text-and-Image Generation

EMNLP 2024main

Interleaved text-and-image generation has been an intriguing research direction, where the models are required to generate both images and text pieces in an arbitrary order. Despite the emerging advancements in interleaved generation, the progress in its evaluation still significantly lags behind. E…

Cited by 6SourcePDFScholar
2024

HyQE: Ranking Contexts with Hypothetical Query Embeddings

EMNLP 2024finding

In retrieval-augmented systems, context ranking techniques are commonly employed to reorder the retrieved contexts based on their relevance to a user query. A standard approach is to measure this relevance through the similarity between contexts and queries in the embedding space. However, such simi…

2024

Survival of the Safest: Towards Secure Prompt Optimization through Interleaved Multi-Objective Evolution

EMNLP 2024industry

Large language models (LLMs) have demonstrated remarkable capabilities; however, the optimization of their prompts has historically prioritized performance metrics at the expense of crucial safety and security considerations. To overcome this shortcoming, we introduce “Survival of the Safest” (), an…

Cited by 1SourcePDFScholar
2024

Synthetic Knowledge Ingestion: Towards Knowledge Refinement and Injection for Enhancing Large Language Models

EMNLP 2024main

Large language models (LLMs) are proficient in capturing factual knowledge across various domains. However, refining their capabilities on previously seen knowledge or integrating new knowledge from external sources remains a significant challenge. In this work, we propose a novel synthetic knowledg…

2024

UPOCR: Towards Unified Pixel-Level OCR Interface

ICML 2024poster

Existing optical character recognition (OCR) methods rely on task-specific designs with divergent paradigms, architectures, and training strategies, which significantly increases the complexity of research and maintenance and hinders the fast deployment in applications. To this end, we propose UPOCR…

2024

VRSO: Visual-Centric Reconstruction for Static Object Annotation

IROS 2024poster

As a part of the perception results of intelligent driving systems, static object detection (SOD) in 3D space provides crucial cues for driving environment understanding. With the rapid deployment of deep neural networks for SOD tasks, the demand for high-quality training samples soars. The traditio…

Cited by 0SourcecodeScholar
2023

Accelerating Inverse Learning via Intelligent Localization with Exploratory Sampling

AAAI 2023technical

In the scope of "AI for Science", solving inverse problems is a longstanding challenge in materials and drug discovery, where the goal is to determine the hidden structures given a set of desirable properties. Deep generative models are recently proposed to solve inverse problems, but these are curr…

2023

AutoNF: Automated Architecture Optimization of Normalizing Flows with Unconstrained Continuous Relaxation Admitting Optimal Discrete Solution

AAAI 2023technical

Normalizing flows (NF) build upon invertible neural networks and have wide applications in probabilistic modeling. Currently, building a powerful yet computationally efficient flow model relies on empirical fine-tuning over a large design space. While introducing neural architecture search (NAS) to…

Cited by 2SourcePDFScholar
2023

ESTextSpotter: Towards Better Scene Text Spotting with Explicit Synergy in Transformer

ICCV 2023poster

In recent years, end-to-end scene text spotting approaches are evolving to the Transformer-based framework. While previous studies have shown the crucial importance of the intrinsic synergy between text detection and recognition, recent advances in Transformer-based methods usually adopt an implicit…

Cited by 37PDFcodeScholar
2023

Interactive Multi-fidelity Learning for Cost-effective Adaptation of Language Model with Sparse Human Supervision

NeurIPS 2023poster

Large language models (LLMs) have demonstrated remarkable capabilities in various tasks. However, their suitability for domain-specific tasks, is limited due to their immense scale at deployment, susceptibility to misinformation, and more importantly, high data annotation costs. We propose a novel I…

Cited by 4SourcePDFScholar
2023

M6Doc: A Large-Scale Multi-Format, Multi-Type, Multi-Layout, Multi-Language, Multi-Annotation Category Dataset for Modern Document Layout Analysis

CVPR 2023poster

Document layout analysis is a crucial prerequisite for document understanding, including document retrieval and conversion. Most public datasets currently contain only PDF documents and lack realistic documents. Models trained on these datasets may not generalize well to real-world scenarios. Theref…

2023

SAC$^3$: Reliable Hallucination Detection in Black-Box Language Models via Semantic-aware Cross-check Consistency

EMNLP 2023long findings

Hallucination detection is a critical step toward understanding the trustworthiness of modern language models (LMs). To achieve this goal, we re-examine existing detection approaches based on the self-consistency of LMs and uncover two types of hallucinations resulting from 1) question-level and 2)…

Cited by 0SourcecodeScholar
2022

Auditing Privacy Defenses in Federated Learning via Generative Gradient Leakage

CVPR 2022poster

Federated Learning (FL) framework brings privacy benefits to distributed learning systems by allowing multiple clients to participate in a learning task under the coordination of a central server without exchanging their private data. However, recent studies have revealed that private information ca…

Cited by 146PDFcodeScholar
2022

Gradient-Based Novelty Detection Boosted by Self-Supervised Binary Classification

AAAI 2022technical

Novelty detection aims to automatically identify out-of-distribution (OOD) data, without any prior knowledge of them. It is a critical step in data monitoring, behavior analysis and other applications, helping enable continual learning in the field. Conventional methods of OOD detection perform mult…

Cited by 16SourcePDFScholar
2021

A Scalable Gradient Free Method for Bayesian Experimental Design with Implicit Models

AISTATS 2021poster

Bayesian experimental design (BED) is to answer the question that how to choose designs that maximize the information gathering. For implicit models, where the likelihood is intractable but sampling is possible, conventional BED methods have difficulties in efficiently estimating the posterior distr…

Cited by 12SourcePDFScholar
2021

Deep Online Correction for Monocular Visual Odometry

ICRA 2021poster

In this work, we propose a novel deep online correction (DOC) framework for monocular visual odometry. The whole pipeline has two stages: First, depth maps and initial poses are obtained from convolutional neural networks (CNNs) trained in self-supervised manners. Second, the poses predicted by CNNs…

Cited by 27SourceScholar
2021

Enabling long-range exploration in minimization of multimodal functions

UAI 2021poster

We consider the problem of minimizing multi-modal loss functions with a large number of local optima. Since the local gradient points to the direction of the steepest slope in an infinitesimal neighborhood, an optimizer guided by the local gradient is often trapped in a local minimum. To address thi…

2021

On the Stochastic Stability of Deep Markov Models

NeurIPS 2021poster

Deep Markov models (DMM) are generative models which are scalable and expressive generalization of Markov models for representation, learning, and inference problems. However, the fundamental stochastic stability guarantees of such models have not been thoroughly investigated. In this paper, we pres…

Cited by 8SourcePDFScholar
2021

Towards Robust Visual Information Extraction in Real World: New Dataset and Novel Solution

AAAI 2021technical

Visual Information Extraction (VIE) has attracted considerable attention recently owing to its various advanced applications such as document understanding, automatic marking and intelligent education. Most existing works decoupled this problem into several independent sub-tasks of text spotting (te…

2020

Attention as Relation: Learning Supervised Multi-head Self-Attention for Relation Extraction

IJCAI 2020poster

Joint entity and relation extraction is critical for many natural language processing (NLP) tasks, which has attracted increasing research interest. However, it is still faced with the challenges of identifying the overlapping relation triplets along with the entire entity boundary and detecting the…

2019

Learning nonlinear level sets for dimensionality reduction in function approximation

NeurIPS 2019poster

We developed a Nonlinear Level-set Learning (NLL) method for dimensionality reduction in high-dimensional function approximation with small data. This work is motivated by a variety of design tasks in real-world engineering applications, where practitioners would replace their computationally intens…