Losses¶
tinytopics.loss
¶
poisson_nmf_loss(X, X_reconstructed)
¶
Compute the Poisson NMF loss function (negative log-likelihood).
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
X
|
Tensor
|
Original document-term matrix. |
required |
X_reconstructed
|
Tensor
|
Reconstructed matrix from the model. |
required |
Returns:
| Type | Description |
|---|---|
Tensor
|
The computed Poisson NMF loss. |