Search Results for author: Ashwin De Silva

Found 7 papers, 3 papers with code

The Value of Out-of-Distribution Data

1 code implementation23 Aug 2022 Ashwin De Silva, Rahul Ramesh, Carey E. Priebe, Pratik Chaudhari, Joshua T. Vogelstein

In this work, we show a counter-intuitive phenomenon: the generalization error of a task can be a non-monotonic function of the number of OOD samples.

Data Augmentation Hyperparameter Optimization

Deep Discriminative to Kernel Density Networks for Calibrated Inference

1 code implementation31 Jan 2022 Jayanta Dey, Will LeVine, Haoyin Xu, Ashwin De Silva, Tyler M. Tomita, Ali Geisa, Tiffany Chu, Jacob Desman, Joshua T. Vogelstein

In this paper, we leveraged the fact that deep models, including both random forests and deep-nets, learn internal representations which are unions of polytopes with affine activation functions to conceptualize them both as partitioning rules of the feature space.

Out-of-Distribution Detection regression

Towards Accurate Cross-Domain In-Bed Human Pose Estimation

1 code implementation7 Oct 2021 Mohamed Afham, Udith Haputhanthri, Jathurshan Pradeepkumar, Mithunjha Anandakumar, Ashwin De Silva, Chamira Edussooriya

Majority of the contactless human pose estimation algorithms are based on RGB modality, causing ineffectiveness in in-bed pose estimation due to occlusions by blankets and varying illumination conditions.

Data Augmentation Knowledge Distillation +1

A Thickness Sensitive Vessel Extraction Framework for Retinal and Conjunctival Vascular Tortuosity Analysis

no code implementations2 Jan 2021 Ashwin De Silva, Malsha V. Perera, Navodini Wijethilake, Saroj Jayasinghe, Nuwan D. Nanayakkara, Anjula De Silva

In addition, the proposed framework was utilized to determine the association of diabetes with retinal and conjunctival vascular tortuosity.

A Joint Convolutional and Spatial Quad-Directional LSTM Network for Phase Unwrapping

no code implementations26 Oct 2020 Malsha V. Perera, Ashwin De Silva

Phase unwrapping is a classical ill-posed problem which aims to recover the true phase from wrapped phase.

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