Search Results for author: Marynel Vázquez

Found 10 papers, 1 papers with code

Aligning Multiclass Neural Network Classifier Criterion with Task Performance via $F_β$-Score

no code implementations31 May 2024 Nathan Tsoi, Deyuan Li, Taesoo Daniel Lee, Marynel Vázquez

Our method extends the $2 \times 2$ binary soft-set confusion matrix to a multiclass $d \times d$ confusion matrix and proposes dynamic adaptation of the threshold value $\tau$, which parameterizes the piecewise-linear Heaviside approximation during run-time.

Binary Classification

Predicting Human Impressions of Robot Performance During Navigation Tasks

no code implementations17 Oct 2023 Qiping Zhang, Nathan Tsoi, Mofeed Nagib, Booyeon Choi, Jie Tan, Hao-Tien Lewis Chiang, Marynel Vázquez

Further, when predicting robot performance as a binary classification task on unseen users' data, the F1 Score of machine learning models more than doubled in comparison to predicting performance on a 5-point scale.

Binary Classification

Topological Planning with Transformers for Vision-and-Language Navigation

no code implementations CVPR 2021 Kevin Chen, Junshen K. Chen, Jo Chuang, Marynel Vázquez, Silvio Savarese

Conventional approaches to vision-and-language navigation (VLN) are trained end-to-end but struggle to perform well in freely traversable environments.

Vision and Language Navigation

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

no code implementations2 Sep 2020 Nathan Tsoi, Kate Candon, Deyuan Li, Yofti Milkessa, Marynel Vázquez

In this work, we propose a unifying approach to training neural network binary classifiers that combines a differentiable approximation of the Heaviside function with a probabilistic view of the typical confusion matrix values using soft sets.

General Classification

Conversational Group Detection With Deep Convolutional Networks

no code implementations7 Oct 2018 Mason Swofford, John Peruzzi, Marynel Vázquez

Detection of interacting and conversational groups from images has applications in video surveillance and social robotics.

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