feat: Add PTB-XL dataset and ProtoECGNet model for multi-label ECG classification

docs/api/models.rst

@@ -254,3 +254,5 @@ API Reference
     models/pyhealth.models.califorest
     models/pyhealth.models.XGBoostModel
     models/pyhealth.models.survival_mdn
+    models/pyhealth.models.ProtoECGNet
+

docs/api/models/pyhealth.models.ProtoECGNet.rst

@@ -0,0 +1,26 @@
+pyhealth.models.ProtoECGNet
+===================================
+
+ProtoECGNet: case-based interpretable multi-label ECG classification with a
+prototype loss that includes a label co-occurrence contrastive term
+(`Sethi et al., MLHC 2025 <https://proceedings.mlr.press/v298/sethi25a.html>`_).
+
+.. autoclass:: pyhealth.models.ProtoECGNet
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. autoclass:: pyhealth.models.PrototypeBranch
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. autoclass:: pyhealth.models.ResNet1dBackbone
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. autoclass:: pyhealth.models.ResNet2dBackbone
+    :members:
+    :undoc-members:
+    :show-inheritance:

docs/api/tasks.rst

@@ -215,6 +215,7 @@ Available Tasks
     Cardiology Detection <tasks/pyhealth.tasks.cardiology_detect>
     COVID-19 CXR Classification <tasks/pyhealth.tasks.COVID19CXRClassification>
     COVID-19 CXR Image Generation <tasks/pyhealth.tasks.COVID19CXRImageGeneration>
+    PTB-XL Multilabel Classification <tasks/pyhealth.tasks.PTBXLMultilabelClassification>
     DKA Prediction (MIMIC-IV) <tasks/pyhealth.tasks.dka>
     Drug Recommendation <tasks/pyhealth.tasks.drug_recommendation>
     EHR Generation <tasks/pyhealth.tasks.generate_ehr>

docs/api/tasks/pyhealth.tasks.PTBXLMultilabelClassification.rst

@@ -0,0 +1,10 @@
+pyhealth.tasks.PTBXLMultilabelClassification
+============================================
+
+Multi-label classification of PTB-XL 12-lead ECGs (all 71 SCP statements, or the
+diagnostic, sub/super-diagnostic, form or rhythm label sets).
+
+.. autoclass:: pyhealth.tasks.PTBXLMultilabelClassification
+    :members:
+    :undoc-members:
+    :show-inheritance: