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Sean Bell

7 accepted papers

2026

Inpainting-Guided Policy Optimization for Diffusion Large Language Models

ICLR 2026poster

Masked diffusion large language models (dLLMs) are emerging as promising alternatives to autoregressive LLMs, offering competitive performance while supporting unique generation capabilities such as inpainting. We explore how inpainting can inform RL algorithm design for dLLMs. Aligning LLMs with re…

Cited by 0SourcecodeScholar
2023

RoPAWS: Robust Semi-supervised Representation Learning from Uncurated Data

ICLR 2023poster

Semi-supervised learning aims to train a model using limited labels. State-of-the-art semi-supervised methods for image classification such as PAWS rely on self-supervised representations learned with large-scale unlabeled but curated data. However, PAWS is often less effective when using real-world…

2023

Tell Me What Happened: Unifying Text-Guided Video Completion via Multimodal Masked Video Generation

CVPR 2023poster

Generating a video given the first several static frames is challenging as it anticipates reasonable future frames with temporal coherence. Besides video prediction, the ability to rewind from the last frame or infilling between the head and tail is also crucial, but they have rarely been explored f…

2016

Inside-Outside Net: Detecting Objects in Context With Skip Pooling and Recurrent Neural Networks

CVPR 2016poster

It is well known that contextual and multi-scale representations are important for accurate visual recognition. In this paper we present the Inside-Outside Net (ION), an object detector that exploits information both inside and outside the region of interest. Contextual information outside the regio…

Cited by 1678PDFcodeScholar
2015

Learning Visual Clothing Style With Heterogeneous Dyadic Co-Occurrences

ICCV 2015poster

With the rapid proliferation of smart mobile devices, users now take millions of photos every day. These include large numbers of clothing and accessory images. We would like to answer questions like `What outfit goes well with this pair of shoes?' To answer these types of questions, one has to go b…

Cited by 388PDFScholar
2015

Material Recognition in the Wild With the Materials in Context Database

CVPR 2015poster

Recognizing materials in real-world images is a challenging task. Real-world materials have rich surface texture, geometry, lighting conditions, and clutter, which combine to make the problem particularly difficult. In this paper, we introduce a new, large-scale, open dataset of materials in the wil…

Cited by 697SourcePDFScholar