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Yuyang Zhang

17 accepted papers

2026

Cross-modal Fuzzy Alignment Network for Text-Aerial Person Retrieval and A Large-scale Benchmark

CVPR 2026

Text-aerial person retrieval aims to identify targets in UAV-captured images from eyewitness descriptions, supporting intelligent transportation and public security applications. Compared to ground-view text-image person retrieval, UAV-captured images often suffer from degraded visual information du

Cited by 0SourcecodeScholar
2026

EvoThink: Evolving Thinking in Large Reasoning Models via Self-Pruning and Aha-Moment Preference Optimization

IJCAI 2026

Large Reasoning Models (LRMs) often suffer from overthinking due to redundant verification steps. Existing approaches for mitigating overthinking, such as fast-slow thinking switching and reasoning trajectory compression, fail to make a fine-grained distinction between beneficial and redundant steps

Cited by 0Scholar
2026

Goal-Driven Reward by Video Diffusion Models for Reinforcement Learning

CVPR 2026

Reinforcement Learning (RL) has achieved remarkable success in various domains, yet it often relies on carefully designed programmatic reward functions to guide agent behavior. Designing such reward functions can be challenging and may not generalize well across different tasks. To address this limi

Cited by 0SourceScholar
2026

PCFormer: Accelerating Privacy-preserving Transformer Inference by Partition and Combination

AAAI 2026technical

In recent years, transformer-based models have achieved remarkable success in sensitive domains, including healthcare, finance and personalized services, but their deployment raises significant privacy concerns. Existing secure inference studies have introduced cryptographic techniques such as Homom

Cited by 0SourcePDFScholar
2025

Analogy-based Multi-Turn Jailbreak against Large Language Models

NeurIPS 2025poster

Large language models (LLMs) are inherently designed to support multi-turn interactions, which opens up new possibilities for jailbreak attacks that unfold gradually and potentially bypass safety mechanisms more effectively than single-turn attacks. However, current multi-turn jailbreak methods are…

Cited by 0SourceScholar
2025

Automated Red Teaming for Text-to-Image Models through Feedback-Guided Prompt Iteration with Vision-Language Models

ICCV 2025poster

Text-to-image models have achieved remarkable progress in generating high-quality images from textual prompts, yet their potential for misuse like generating unsafe content remains a critical concern. Existing safety mechanisms, such as filtering and fine-tuning, remain insufficient in preventing vu…

2025

FlyKites: Human-Centric Interactive Exploration and Assistance Under Limited Communication

ICRA 2025

Fleets of autonomous robots have been deployed for exploration of unknown scenes for features of interest, e.g., subterranean exploration, reconnaissance, search and rescue missions. During exploration, the robots may encounter un-identified targets, blocked passages, interactive objects, temporary

Cited by 2SourceScholar
2025

Link-based Contrastive Learning for One-Shot Unsupervised Domain Adaptation

CVPR 2025poster

Unsupervised domain adaptation (UDA) aims to learn discriminative features from a labeled source domain by supervised learning and to transfer the knowledge to an unlabeled target domain via distribution alignment. However, in some real-world scenarios, e.g., public safety or access control, it's di…

Cited by 0SourcePDFScholar
2025

Transfer Learning of Real Image Features with Soft Contrastive Loss for Fake Image Detection

AAAI 2025technical

In the last few years, the artifact patterns in fake images synthesized by different generative models have been inconsistent, leading to the failure of previous research that relied on spotting subtle differences between real and fake. In our preliminary experiments, we find that the artifacts in f…

Cited by 0SourcePDFScholar
2025

Unsupervised Anomaly Detection Improves Imitation Learning for Autonomous Racing

IROS 2025

Imitation Learning (IL) has shown significant promise in autonomous driving, but its performance heavily depends on the quality of training data. Noisy or corrupted sensor inputs can degrade learned policies, leading to unsafe behavior. This paper presents an unsupervised anomaly detection approach

Cited by 1SourceScholar
2024

Enhancing Preference-based Linear Bandits via Human Response Time

NeurIPS 2024oral

Interactive preference learning systems infer human preferences by presenting queries as pairs of options and collecting binary choices. Although binary choices are simple and widely used, they provide limited information about preference strength. To address this, we leverage human response times,…

2024

Learning Low-dimensional Latent Dynamics from High-dimensional Observations: Non-asymptotics and Lower Bounds

ICML 2024poster

In this paper, we focus on learning a linear time-invariant (LTI) model with low-dimensional latent variables but high-dimensional observations. We provide an algorithm that recovers the high-dimensional features, i.e. column space of the observer, embeds the data into low dimensions and learns the…

Cited by 2SourcePDFScholar
2024

iHERO: Interactive Human-oriented Exploration and Supervision Under Scarce Communication

RSS 2024poster

Exploration of unknown scenes before human entry is essential for safety and efficiency in numerous scenarios, e.g., subterranean exploration, reconnaissance, search and rescue missions. Fleets of autonomous robots are particularly suitable for this task, via concurrent exploration, multi-sensory pe…

2022

DOMAINDESC: Learning Local Descriptors With Domain Adaptation

ICASSP 2022accepted

Robust and efficient local descriptor is crucial in a wide range of applications. In this paper, we propose a novel descriptor DomainDesc which is invariant as much as possible by learning local Descriptor with Domain adaptation. We design the feature-level domain adaptation loss to improve robustne…

Cited by 0SourceScholar
2022

Improving Few-Shot Relation Classification by Prototypical Representation Learning with Definition Text

NAACL 2022findings

Few-shot relation classification is difficult because the few instances available may not represent well the relation patterns. Some existing approaches explored extra information such as relation definition, in addition to the instances, to learn a better relation representation. However, the encod…

2022

MTLDesc: Looking Wider to Describe Better

AAAI 2022technical

Limited by the locality of convolutional neural networks, most existing local features description methods only learn local descriptors with local information and lack awareness of global and surrounding spatial context. In this work, we focus on making local descriptors ``look wider to describe bet…

2021

DyLex: Incorporating Dynamic Lexicons into BERT for Sequence Labeling

EMNLP 2021main

Incorporating lexical knowledge into deep learning models has been proved to be very effective for sequence labeling tasks. However, previous works commonly have difficulty dealing with large-scale dynamic lexicons which often cause excessive matching noise and problems of frequent updates. In this…