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David Acuna

27 accepted papers

2026

Goedel-Prover-V2: Scaling Formal Theorem Proving with Scaffolded Data Synthesis and Self-Correction

ICLR 2026poster

Automated theorem proving (ATP) --- the task of generating a proof that passes automated proof verification given a math question in formal language --- is a critical challenge at the intersection of mathematics and Artificial Intelligence (AI). We introduce Goedel-Prover-V2, a family of two languag…

Cited by 0SourcecodeScholar
2026

Golden Goose: A Simple Trick to Synthesize Unlimited RLVR Tasks from Unverifiable Internet Text

ICML 2026poster

Reinforcement Learning with Verifiable Rewards (RLVR) has become a cornerstone for unlocking complex reasoning in Large Language Models (LLMs). Yet, scaling up RL is bottlenecked by limited existing verifiable data, where improvements increasingly saturate over prolonged training. To overcome this, …

Cited by 0SourceScholar
2026

Long Grounded Thoughts: Synthesizing Grounded Visual Problems and Distilling Reasoning Chains at Scale

ICML 2026poster

Despite rapid progress, multimodal reasoning still lacks a systematic approach to synthesize large-scale vision-centric datasets beyond visual math. We introduce a framework able to synthesize vision-centric problems spanning diverse levels of complexity, and the resulting dataset with over 1M high-…

Cited by 0SourceScholar
2026

Privasis: Synthesizing the Largest "Public" Private Dataset from Scratch

ICML 2026poster

Research involving privacy-sensitive data has always been constrained by data scarcity, standing in sharp contrast to other areas that have benefited from data scaling. To quench this thirst, we present Privasis (i.e., privacy oasis), the first million-scale fully synthetic dataset entirely built fr…

Cited by 0SourceScholar
2025

Can Large Vision-Language Models Correct Semantic Grounding Errors By Themselves?

CVPR 2025poster

Improving semantic grounding in Vision-Language Models (VLMs) often involves collecting domain-specific training data, refining the network architectures, or modifying the training recipes. In this work, we venture into an orthogonal direction and explore self-correction in VLMs focusing on semantic…

Cited by 0SourcePDFScholar
2025

Prismatic Synthesis: Gradient-based Data Diversification Boosts Generalization in LLM Reasoning

NeurIPS 2025spotlight

Data diversity is crucial for training a strong language model. Yet metrics of diversity often diverge from this goal, measuring variations in heuristic features—like n-grams or embeddings—that are detached from how the model actually performs on a target task. This motivates us to ask: *Can we rede…

Cited by 0SourceScholar
2025

Socratic-MCTS: Test-Time Visual Reasoning by Asking the Right Questions

EMNLP 2025

Recent research in vision-language models (VLMs) has centered around the possibility of equipping them with implicit long-form chain-of-thought reasoning—akin to the success observed in language models—via distillation and reinforcement learning. But what about the non-reasoning models already train

Cited by 0SourcePDFScholar
2024

Photorealistic Object Insertion with Diffusion-Guided Inverse Rendering

ECCV 2024poster

"The correct insertion of virtual objects in images of real-world scenes requires a deep understanding of the scene’s lighting, geometry and materials, as well as the image formation process. While recent large-scale diffusion models have shown strong generative and inpainting capabilities, we find…

Cited by 6SourcePDFScholar
2024

Reasoning Paths with Reference Objects Elicit Quantitative Spatial Reasoning in Large Vision-Language Models

EMNLP 2024main

Despite recent advances demonstrating vision- language models’ (VLMs) abilities to describe complex relationships among objects in images using natural language, their capability to quantitatively reason about object sizes and distances remains underexplored. In this work, we introduce a manually an…

Cited by 7SourcePDFScholar
2024

Transferring Labels to Solve Annotation Mismatches Across Object Detection Datasets

ICLR 2024poster

In object detection, varying annotation protocols across datasets can result in annotation mismatches, leading to inconsistent class labels and bounding regions. Addressing these mismatches typically involves manually identifying common trends and fixing the corresponding bounding boxes and class la…

Cited by 1SourcePDFScholar
2023

DreamTeacher: Pretraining Image Backbones with Deep Generative Models

ICCV 2023poster

In this work, we introduce a self-supervised feature representation learning framework DreamTeacher that utilizes generative networks for pre-training downstream image backbones. We propose to distill knowledge from a trained generative model into standard image backbones that have been well enginee…

Cited by 23PDFScholar
2022

Complex Momentum for Optimization in Games

AISTATS 2022poster

We generalize gradient descent with momentum for optimization in differentiable games to have complex-valued momentum. We give theoretical motivation for our method by proving convergence on bilinear zero-sum games for simultaneous and alternating updates. Our method gives real-valued parameter upda…

2022

How Much More Data Do I Need? Estimating Requirements for Downstream Tasks

CVPR 2022poster

Given a small training data set and a learning algorithm, how much more data is necessary to reach a target validation or test performance? This question is of critical importance in applications such as autonomous driving or medical imaging where collecting data is expensive and time-consuming. Ove…

Cited by 32PDFScholar
2022

Neural Light Field Estimation for Street Scenes with Differentiable Virtual Object Insertion

ECCV 2022poster

"We consider the challenging problem of outdoor lighting estimation for the goal of photorealistic virtual object insertion into photographs. Existing works on outdoor lighting estimation typically simplify the scene lighting into an environment map which cannot capture the spatially-varying lightin…

Cited by 41SourcePDFScholar
2021

Scalable Neural Data Server: A Data Recommender for Transfer Learning

NeurIPS 2021poster

Absence of large-scale labeled data in the practitioner's target domain can be a bottleneck to applying machine learning algorithms in practice. Transfer learning is a popular strategy for leveraging additional data to improve the downstream performance, but finding the most relevant data to transfe…

Cited by 8SourcePDFScholar
2021

Towards Optimal Strategies for Training Self-Driving Perception Models in Simulation

NeurIPS 2021poster

Autonomous driving relies on a huge volume of real-world data to be labeled to high precision. Alternative solutions seek to exploit driving simulators that can generate large amounts of labeled data with a plethora of content variations. However, the domain gap between the synthetic and real data…

Cited by 23SourcePDFScholar
2019

Meta-Sim: Learning to Generate Synthetic Datasets

ICCV 2019oral

Training models to high-end performance requires availability of large labeled datasets, which are expensive to get. The goal of our work is to automatically synthesize labeled datasets that are relevant for a downstream task. We propose Meta-Sim, which learns a generative model of synthetic scenes,…

Cited by 316PDFScholar
2019

Neural Turtle Graphics for Modeling City Road Layouts

ICCV 2019oral

We propose Neural Turtle Graphics (NTG), a novel generative model for spatial graphs, and demonstrate its applications in modeling city road layouts. Specifically, we represent the road layout using a graph where nodes in the graph represent control points and edges in the graph represents road segm…

Cited by 104PDFScholar
2019

Object Instance Annotation With Deep Extreme Level Set Evolution

CVPR 2019poster

In this paper, we tackle the task of interactive object segmentation. We revive the old ideas on level set segmentation which framed object annotation as curve evolution. Carefully designed energy functions ensured that the curve was well aligned with image boundaries, and generally "well behaved".…

Cited by 98PDFcodeScholar
2019

Structured Domain Randomization: Bridging the Reality Gap by Context-Aware Synthetic Data

ICRA 2019poster

We present structured domain randomization (SDR), a variant of domain randomization (DR) that takes into account the structure of the scene in order to add context to the generated data. In contrast to DR, which places objects and distractors randomly according to a uniform probability distribution,…

Cited by 228SourceScholar
2018

Efficient Interactive Annotation of Segmentation Datasets With Polygon-RNN++

CVPR 2018poster

Manually labeling datasets with object masks is extremely time consuming. In this work, we follow the idea of Polygon-RNN to produce polygonal annotations of objects interactively using humans-in-the-loop. We introduce several important improvements to the model: 1) we design a new CNN encoder archi…

Cited by 537SourcePDFScholar