12 citations · 26 across the 4 of their papers we have counts for
5 papers
A Generic Visualization Approach for Convolutional Neural Networks
Ahmed Taha, Xitong Yang, Abhinav Shrivastava +1
Retrieval networks are essential for searching and indexing. Compared to classification networks, attention visualization for retrieval networks is hardly studied. We formulate att…
Hierarchical Contrastive Motion Learning for Video Action Recognition
Xitong Yang, Xiaodong Yang, Sifei Liu +3
One central question for video action recognition is how to model motion. In this paper, we present hierarchical contrastive motion learning, a new self-supervised learning framewo…
STEP: Spatio-Temporal Progressive Learning for Video Action Detection
Xitong Yang, Xiaodong Yang, Ming-Yu Liu +3
In this paper, we propose Spatio-TEmporal Progressive (STEP) action detector---a progressive learning framework for spatio-temporal action detection in videos. Starting from a hand…
Exploring Uncertainty in Conditional Multi-Modal Retrieval Systems
Ahmed Taha, Yi-Ting Chen, Xitong Yang +2
We cast visual retrieval as a regression problem by posing triplet loss as a regression loss. This enables epistemic uncertainty estimation using dropout as a Bayesian approximatio…
Two Stream Self-Supervised Learning for Action Recognition
Ahmed Taha, Moustafa Meshry, Xitong Yang +2
We present a self-supervised approach using spatio-temporal signals between video frames for action recognition. A two-stream architecture is leveraged to tangle spatial and tempor…