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Import umap when needed #418

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Import umap when needed #418

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import umap when needed
ieivanov Apr 29, 2026
625e92b
format
ieivanov Apr 29, 2026
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3 changes: 2 additions & 1 deletion viscy/representation/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@
from lightning.pytorch import LightningModule
from pytorch_metric_learning.losses import NTXentLoss
from torch import Tensor, nn
from umap import UMAP

from viscy.data.typing import TrackingIndex, TripletSample
from viscy.representation.contrastive import ContrastiveEncoder
Expand Down Expand Up @@ -183,6 +182,8 @@ def _log_step_samples(self, batch_idx, samples, stage: Literal["train", "val"]):
output_list.extend(detach_sample(samples, self.log_samples_per_batch))

def log_embedding_umap(self, embeddings: Tensor, tag: str):
from umap import UMAP

_logger.debug(f"Computing UMAP for {tag} embeddings.")
umap = UMAP(n_components=2)
embeddings_np = embeddings.detach().cpu().numpy()
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