Search Results for author: Ting-Ting Xie

Found 5 papers, 1 papers with code

Few-Shot Action Localization without Knowing Boundaries

1 code implementation8 Jun 2021 Ting-Ting Xie, Christos Tzelepis, Fan Fu, Ioannis Patras

Learning to localize actions in long, cluttered, and untrimmed videos is a hard task, that in the literature has typically been addressed assuming the availability of large amounts of annotated training samples for each class -- either in a fully-supervised setting, where action boundaries are known, or in a weakly-supervised setting, where only class labels are known for each video.

Action Localization Few-Shot Learning

Boundary Uncertainty in a Single-Stage Temporal Action Localization Network

no code implementations25 Aug 2020 Ting-Ting Xie, Christos Tzelepis, Ioannis Patras

We use two uncertainty-aware boundary regression losses: first, the Kullback-Leibler divergence between the ground truth location of the boundary and the Gaussian modeling the prediction of the boundary and second, the expectation of the $\ell_1$ loss under the same Gaussian.

Temporal Action Localization

Temporal Action Localization with Variance-Aware Networks

no code implementations25 Aug 2020 Ting-Ting Xie, Christos Tzelepis, Ioannis Patras

Results in the action localization problem show that the incorporation of second order statistics improves over the baseline network, and that VANp surpasses the accuracy of virtually all other two-stage networks without involving any additional parameters.

regression Temporal Action Localization

hi-RF: Incremental Learning Random Forest for large-scale multi-class Data Classification

no code implementations31 Aug 2016 Ting-Ting Xie, Yuxing Peng, Changjian Wang

Most traditional methods struggle to balance the precision and computational burden when data and its number of classes increased.

Computational Efficiency General Classification +1

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