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Nathan Tsoi

5 accepted papers

2022

Bridging the Gap: Unifying the Training and Evaluation of Neural Network Binary Classifiers

NeurIPS 2022accept

While neural network binary classifiers are often evaluated on metrics such as Accuracy and $F_1$-Score, they are commonly trained with a cross-entropy objective. How can this training-evaluation gap be addressed? While specific techniques have been adopted to optimize certain confusion matrix based…

Cited by 1SourcePDFScholar
2022

SEAN 2.0: Formalizing and Generating Social Situations for Robot Navigation

RA-L 2022

We present SEAN 2.0, an open-source system designed to advance social navigation via the training and benchmarking of navigation policies in varied social contexts. A key limitation of current social navigation research is that policies are often trained and evaluated considering only a few social c

Cited by 74SourceScholar
2021

An Approach to Deploy Interactive Robotic Simulators on the Web for HRI Experiments: Results in Social Robot Navigation

IROS 2021poster

Evaluation of social robot navigation inherently requires human input due to its qualitative nature. Motivated by the need to scale human evaluation, we propose a general method for deploying interactive, rich-client robotic simulations on the web. Prior approaches implement specific web- compatible…

Cited by 22SourceScholar
2019

Generalized Intersection Over Union: A Metric and a Loss for Bounding Box Regression

CVPR 2019poster

Intersection over Union (IoU) is the most popular evaluation metric used in the object detection benchmarks. However, there is a gap between optimizing the commonly used distance losses for regressing the parameters of a bounding box and maximizing this metric value. The optimal objective for a metr…

Cited by 6789PDFcodeScholar