Vijay Vignesh

Adding multisample feature along with testcases

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Before submitting - [x] Was this discussed/agreed via a Github issue? (no need for typos and docs improvements) - [x] Did you read the [contributor guideline](https://github.com/Lightning-AI/lit-data/blob/main/CONTRIBUTING.md), Pull Request section? -...

New Metric: `Soft Dynamic Time Warping` (Soft-DTW)

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## What does this PR do? Fixes #3084 Before submitting - [x] Was this **discussed/agreed** via a Github issue? (no need for typos and docs improvements) - [x] Did you...

Changing tensor copy to remove user warning in `logAUC`

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## What does this PR do? Fixes #3278 Before submitting - [x] Was this **discussed/agreed** via a Github issue? (no need for typos and docs improvements) - [x] Did you...

New Metric: Upper Face Dynamics Deviation(FDD)

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## What does this PR do? Implements the Upper Face Dynamics Deviation (FDD) metric for 3D talking head evaluation. Computes the deviation in motion magnitude of upper-face vertices between predicted...

Fix: Use tuple for multidimensional indexing in distributed.py

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## What does this PR do? Fixes #3275 Before submitting - [ ] Was this **discussed/agreed** via a Github issue? (no need for typos and docs improvements) - [x] Did...

Bugfix for `GeneralizedDiceScore` to yield `NaN` for missing classes

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## What does this PR do? Fixes GeneralizedDiceScore to yield NaN for missing classes when per_class=True. Added testcases to verify the same. Fixes #2846 Before submitting - [x] Was this...

Adding `ignore_index` to segmentation `mean_iou`

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## What does this PR do? Fixes #2747 Before submitting - [x] Was this **discussed/agreed** via a Github issue? (no need for typos and docs improvements) - [x] Did you...

`BinaryAUROC` support for Masked Labels

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## What does this PR do? Fixes #3096 Before submitting - [x] Was this **discussed/agreed** via a Github issue? (no need for typos and docs improvements) - [x] Did you...

`UserWarning` while using logAUC

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## 🐛 Bug Using logauc function gives the following Userwarning: ``` torchmetrics/src/torchmetrics/functional/classification/logauc.py:52: UserWarning: To copy construct from a tensor, it is recommended to use sourceTensor.detach().clone() or sourceTensor.detach().clone().requires_grad_(True), rather than torch.tensor(sourceTensor)....