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Tsubasa Takahashi

9 accepted papers

2026

P2GS: Physical Prior-guided Gaussian Splatting for Photometrically Consistent Urban Reconstruction

CVPR 2026

3D Gaussian Splatting (3DGS) has recently emerged as a powerful explicit representation enabling fast, high-fidelity rendering, making it a promising foundation for closed-loop simulators and perception models in autonomous driving. However, conventional 3DGS implicitly assumes consistent exposure a

Cited by 0SourceScholar
2026

STRIDE-QA: Visual Question Answering Dataset for Spatiotemporal Reasoning in Urban Driving Scenes

AAAI 2026technical

Vision-Language Models (VLMs) have been applied to autonomous driving to support decision-making in complex real-world scenarios. However, their training on static, web-sourced image-text pairs fundamentally limits the precise spatiotemporal reasoning required to understand and predict dynamic traff

Cited by 0SourcePDFScholar
2026

Text-Printed Image: Bridging the Image-Text Modality Gap for Text-centric Training of Large Vision-Language Models

CVPR 2026

Recent large vision-language models (LVLMs) have been applied to diverse VQA tasks. However, achieving practical performance typically requires task-specific fine-tuning with large numbers of image-text pairs, which are costly to collect. In this work, we study text-centric training, a setting where

Cited by 0SourceScholar
2026

Understanding Sensitivity of Differential Attention through the Lens of Adversarial Robustness

ICLR 2026poster

Differential Attention (DA) has been proposed as a refinement to standard attention, suppressing redundant or noisy context through a subtractive structure and thereby reducing contextual hallucination. While this design sharpens task-relevant focus, we show that it also introduces a structural frag…

Cited by 0SourceScholar
2025

MergePrint: Merge-Resistant Fingerprints for Robust Black-box Ownership Verification of Large Language Models

ACL 2025long

Protecting the intellectual property of Large Language Models (LLMs) has become increasingly critical due to the high cost of training. Model merging, which integrates multiple expert models into a single multi-task model, introduces a novel risk of unauthorized use of LLMs due to its efficient merg…

2024

Understanding Likelihood of Normalizing Flow and Image Complexity through the Lens of Out-of-Distribution Detection

AAAI 2024technical

Out-of-distribution (OOD) detection is crucial to safety-critical machine learning applications and has been extensively studied. While recent studies have predominantly focused on classifier-based methods, research on deep generative model (DGM)-based methods have lagged relatively. This disparity…

Cited by 3SourcePDFScholar
2024

Watermark-embedded Adversarial Examples for Copyright Protection against Diffusion Models

CVPR 2024poster

Diffusion Models (DMs) have shown remarkable capabilities in various image-generation tasks. However there are growing concerns that DMs could be used to imitate unauthorized creations and thus raise copyright issues. To address this issue we propose a novel framework that embeds personal watermarks…

Cited by 13SourcePDFScholar
2022

PEARL: Data Synthesis via Private Embeddings and Adversarial Reconstruction Learning

ICLR 2022poster

We propose a new framework of synthesizing data using deep generative models in a differentially private manner. Within our framework, sensitive data are sanitized with rigorous privacy guarantees in a one-shot fashion, such that training deep generative models is possible without re-using the origi…