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Xindi Wu

11 accepted papers

2026

Actions as Language: Fine-Tuning VLMs into VLAs Without Catastrophic Forgetting

ICLR 2026poster

Fine-tuning vision-language models (VLMs) on robot teleoperation data to create vision-language-action (VLA) models is a promising paradigm for training generalist policies, but it suffers from a fundamental tradeoff: learning to produce actions often diminishes the VLM's foundational reasoning and…

Cited by 0SourceScholar
2026

Beyond Objects: Contextual Synthetic Data Generation for Fine-Grained Classification

CVPR 2026

Text-to-image (T2I) models are increasingly used for synthetic dataset generation, but generating synthetic training data to improve fine-grained classification performance remains challenging. Fine-tuning the T2I model with a few real examples can help generate more appropriate synthetic training d

Cited by 1SourcecodeScholar
2026

COMPACT: COMPositional Atomic-to-Complex Visual Capability Tuning

ICLR 2026poster

Visual instruction tuning (VIT) datasets consist of randomly sampled image-question pairs without regard to the informativeness of each pair. Recent dataset selection methods have shown that a small fraction of such datasets enriched with informative samples can lead to efficient finetuning of Multi…

Cited by 0SourceScholar
2026

Motion Attribution for Video Generation

ICML 2026oral

Despite the rapid progress of video generation models, the role of data in influencing motion is poorly understood. We present Motive (MOTIon attribution for Video gEneration), a motion-centric, gradient-based data attribution framework that scales to modern, large, high-quality video datasets and m…

Cited by 2SourceScholar
2025

SWE-bench Multimodal: Do AI Systems Generalize to Visual Software Domains?

ICLR 2025poster

Autonomous systems for software engineering are now capable of fixing bugs and developing features. These systems are commonly evaluated on SWE-bench (Jimenez et al., 2024a), which assesses their ability to solve software issues from GitHub repositories. However, SWE-bench uses only Python repositor…

Cited by 198SourcePDFScholar
2024

CharXiv: Charting Gaps in Realistic Chart Understanding in Multimodal LLMs

NeurIPS 2024poster

Chart understanding plays a pivotal role when applying Multimodal Large Language Models (MLLMs) to real-world tasks such as analyzing scientific papers or financial reports. However, existing datasets often focus on oversimplified and homogeneous charts with template-based questions, leading to an o…

2024

ConceptMix: A Compositional Image Generation Benchmark with Controllable Difficulty

NeurIPS 2024poster

Compositionality is a critical capability in Text-to-Image (T2I) models, as it reflects their ability to understand and combine multiple concepts from text descriptions. Existing evaluations of compositional capability rely heavily on human-designed text prompts or fixed templates, limiting their di…

Cited by 11SourcePDFScholar
2024

Language Models as Science Tutors

ICML 2024poster

NLP has recently made exciting progress toward training language models (LMs) with strong scientific problem-solving skills. However, model development has not focused on real-life use-cases of LMs for science, including applications in education that require processing long scientific documents. To…

2023

Pix2map: Cross-Modal Retrieval for Inferring Street Maps From Images

CVPR 2023poster

Self-driving vehicles rely on urban street maps for autonomous navigation. In this paper, we introduce Pix2Map, a method for inferring urban street map topology directly from ego-view images, as needed to continually update and expand existing maps. This is a challenging task, as we need to infer a…

Cited by 10SourcePDFScholar
2022

Ego4D: Around the World in 3,000 Hours of Egocentric Video

CVPR 2022oral

We introduce Ego4D, a massive-scale egocentric video dataset and benchmark suite. It offers 3,670 hours of daily-life activity video spanning hundreds of scenarios (household, outdoor, workplace, leisure, etc.) captured by 931 unique camera wearers from 74 worldwide locations and 9 different countri…

Cited by 1162PDFcodeScholar
2020

High-Frequency Component Helps Explain the Generalization of Convolutional Neural Networks

CVPR 2020oral

We investigate the relationship between the frequency spectrum of image data and the generalization behavior of convolutional neural networks (CNN). We first notice CNN's ability in capturing the high-frequency components of images. These high-frequency components are almost imperceptible to a human…

Cited by 700PDFcodeScholar