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Chris Dongjoo Kim

6 accepted papers

2026

Molmo2: Open Weights and Data for Vision-Language Models with Video Understanding and Grounding

CVPR 2026

Today's strongest video-language models (VLMs) remain proprietary, and the strongest open-weight models often rely on synthetic data from proprietary VLMs and do not disclose their training data or recipe. As a result, the open-source community lacks the foundations needed to improve on the state-of

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2026

SAGE: Training Smart Any-Horizon Agents for Long Video Reasoning with Reinforcement Learning

CVPR 2026

As humans, we are natural any-horizon reasoners, i.e., we can decide whether to iteratively skim long videos or watch short ones in full when necessary for a given task. With this in mind, one would expect video reasoning models to reason flexibly across different durations. However, SOTA models are

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2025

ReSpec: Relevance and Specificity Grounded Online Filtering for Learning on Video-Text Data Streams

CVPR 2025poster

The rapid growth of video-text data presents challenges in storage and computation during training. Online learning, which processes streaming data in real-time, offers a promising solution to these issues while also allowing swift adaptations in scenarios demanding real-time responsiveness. One str…

2024

Sample Selection via Contrastive Fragmentation for Noisy Label Regression

NeurIPS 2024poster

As with many other problems, real-world regression is plagued by the presence of noisy labels, an inevitable issue that demands our attention. Fortunately, much real-world data often exhibits an intrinsic property of continuously ordered correlations between labels and features, where data points w…

2021

Continual Learning on Noisy Data Streams via Self-Purified Replay

ICCV 2021poster

Continually learning in the real world must overcome many challenges, among which noisy labels are a common and inevitable issue. In this work, we present a replay-based continual learning framework that simultaneously addresses both catastrophic forgetting and noisy labels for the first time. Our s…

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2020

Imbalanced Continual Learning with Partitioning Reservoir Sampling

ECCV 2020poster

Continual learning from a sequential stream of data is a crucial challenge for machine learning research. Most studies have been conducted on this topic under the single-label classification setting along with an assumption of balanced label distribution. This work expands this research horizon towar…