Import from the newly cleaned-up prototorch namespace

prototorch/models/__init__.py

@@ -4,8 +4,19 @@ from importlib.metadata import PackageNotFoundError, version
 
 from .callbacks import PrototypeConvergence, PruneLoserPrototypes
 from .cbc import CBC, ImageCBC
-from .glvq import (GLVQ, GLVQ1, GLVQ21, GMLVQ, GRLVQ, LGMLVQ, LVQMLN,
-                   ImageGLVQ, ImageGMLVQ, SiameseGLVQ, SiameseGMLVQ)
+from .glvq import (
+    GLVQ,
+    GLVQ1,
+    GLVQ21,
+    GMLVQ,
+    GRLVQ,
+    LGMLVQ,
+    LVQMLN,
+    ImageGLVQ,
+    ImageGMLVQ,
+    SiameseGLVQ,
+    SiameseGMLVQ,
+)
 from .knn import KNN
 from .lvq import LVQ1, LVQ21, MedianLVQ
 from .probabilistic import CELVQ, PLVQ, RSLVQ, SLVQ

prototorch/models/abstract.py

@@ -5,9 +5,12 @@ from typing import Final, final
 import pytorch_lightning as pl
 import torch
 import torchmetrics
-from prototorch.components import Components, LabeledComponents
-from prototorch.functions.distances import euclidean_distance
-from prototorch.modules import WTAC, LambdaLayer
+
+from ..core.competitions import WTAC
+from ..core.components import Components, LabeledComponents
+from ..core.distances import euclidean_distance
+from ..core.pooling import stratified_min_pooling
+from ..nn.wrappers import LambdaLayer
 
 
 class ProtoTorchMixin(object):

prototorch/models/callbacks.py

@@ -4,8 +4,8 @@ import logging
 
 import pytorch_lightning as pl
 import torch
-from prototorch.components import Components
 
+from ..core.components import Components
 from .extras import ConnectionTopology
 
 

prototorch/models/cbc.py

@@ -1,10 +1,16 @@
 import torch
 import torchmetrics
 
+from ..core.components import ReasoningComponents
 from .abstract import ImagePrototypesMixin
-from .extras import (CosineSimilarity, MarginLoss, ReasoningLayer,
-                     euclidean_similarity, rescaled_cosine_similarity,
-                     shift_activation)
+from .extras import (
+    CosineSimilarity,
+    MarginLoss,
+    ReasoningLayer,
+    euclidean_similarity,
+    rescaled_cosine_similarity,
+    shift_activation,
+)
 from .glvq import SiameseGLVQ
 
 

prototorch/models/extras.py

@@ -5,8 +5,9 @@ Modules not yet available in prototorch go here temporarily.
 """
 
 import torch
-from prototorch.functions.distances import euclidean_distance
-from prototorch.functions.similarities import cosine_similarity
+
+from ..core.distances import euclidean_distance
+from ..core.similarities import cosine_similarity
 
 
 def rescaled_cosine_similarity(x, y):
@@ -24,6 +25,35 @@ def euclidean_similarity(x, y, variance=1.0):
     return torch.exp(-(d * d) / (2 * variance))
 
 
+def gaussian(distances, variance):
+    return torch.exp(-(distances * distances) / (2 * variance))
+
+
+def rank_scaled_gaussian(distances, lambd):
+    order = torch.argsort(distances, dim=1)
+    ranks = torch.argsort(order, dim=1)
+
+    return torch.exp(-torch.exp(-ranks / lambd) * distances)
+
+
+class GaussianPrior(torch.nn.Module):
+    def __init__(self, variance):
+        super().__init__()
+        self.variance = variance
+
+    def forward(self, distances):
+        return gaussian(distances, self.variance)
+
+
+class RankScaledGaussianPrior(torch.nn.Module):
+    def __init__(self, lambd):
+        super().__init__()
+        self.lambd = lambd
+
+    def forward(self, distances):
+        return rank_scaled_gaussian(distances, self.lambd)
+
+
 class ConnectionTopology(torch.nn.Module):
     def __init__(self, agelimit, num_prototypes):
         super().__init__()

prototorch/models/glvq.py

@@ -1,18 +1,13 @@
 """Models based on the GLVQ framework."""
 
 import torch
-from prototorch.functions.activations import get_activation
-from prototorch.functions.competitions import wtac
-from prototorch.functions.distances import (
-    lomega_distance,
-    omega_distance,
-    squared_euclidean_distance,
-)
-from prototorch.functions.helper import get_flat
-from prototorch.functions.losses import glvq_loss, lvq1_loss, lvq21_loss
-from prototorch.modules import LambdaLayer, LossLayer
 from torch.nn.parameter import Parameter
 
+from ..core.competitions import wtac
+from ..core.distances import lomega_distance, omega_distance, squared_euclidean_distance
+from ..core.losses import glvq_loss, lvq1_loss, lvq21_loss
+from ..nn.activations import get_activation
+from ..nn.wrappers import LambdaLayer, LossLayer
 from .abstract import ImagePrototypesMixin, SupervisedPrototypeModel
 
 
@@ -137,7 +132,7 @@ class SiameseGLVQ(GLVQ):
 
     def compute_distances(self, x):
         protos, _ = self.proto_layer()
-        x, protos = get_flat(x, protos)
+        x, protos = [arr.view(arr.size(0), -1) for arr in (x, protos)]
         latent_x = self.backbone(x)
         self.backbone.requires_grad_(self.both_path_gradients)
         latent_protos = self.backbone(protos)

prototorch/models/knn.py

@@ -2,9 +2,10 @@
 
 import warnings
 
-from prototorch.components import LabeledComponents
-from prototorch.modules import KNNC
-
+from ..core.competitions import KNNC
+from ..core.components import LabeledComponents
+from ..core.initializers import LiteralCompInitializer, LiteralLabelsInitializer
+from ..utils.utils import parse_data_arg
 from .abstract import SupervisedPrototypeModel
 
 

prototorch/models/lvq.py

@@ -1,7 +1,6 @@
 """LVQ models that are optimized using non-gradient methods."""
 
-from prototorch.functions.losses import _get_dp_dm
-
+from ..core.losses import _get_dp_dm
 from .abstract import NonGradientMixin
 from .glvq import GLVQ
 

prototorch/models/probabilistic.py

@@ -1,13 +1,11 @@
 """Probabilistic GLVQ methods"""
 
 import torch
-from prototorch.functions.losses import nllr_loss, rslvq_loss
-from prototorch.functions.pooling import (stratified_min_pooling,
-                                          stratified_sum_pooling)
-from prototorch.functions.transforms import (GaussianPrior,
-                                             RankScaledGaussianPrior)
-from prototorch.modules import LambdaLayer, LossLayer
 
+from ..core.losses import nllr_loss, rslvq_loss
+from ..core.pooling import stratified_min_pooling, stratified_sum_pooling
+from ..nn.wrappers import LambdaLayer, LossLayer
+from .extras import GaussianPrior, RankScaledGaussianPrior
 from .glvq import GLVQ, SiameseGMLVQ
 
 

prototorch/models/unsupervised.py

@@ -2,11 +2,11 @@
 
 import numpy as np
 import torch
-from prototorch.functions.competitions import wtac
-from prototorch.functions.distances import squared_euclidean_distance
-from prototorch.modules import LambdaLayer
-from prototorch.modules.losses import NeuralGasEnergy
 
+from ..core.competitions import wtac
+from ..core.distances import squared_euclidean_distance
+from ..core.losses import NeuralGasEnergy
+from ..nn.wrappers import LambdaLayer
 from .abstract import NonGradientMixin, UnsupervisedPrototypeModel
 from .callbacks import GNGCallback
 from .extras import ConnectionTopology