Implement Multi-Patient Contrastive Learning

[Oufattole]

Implement Multi-Patient Contrastive Learning

Problem

Lack of support for contrastive learning across multiple patients, which is required by some contrastive learning pretraining tasks. NCL is the one I have in mind. These pretraining methods often use the supervised label or dynamic time warping within a batch, so maybe we can add a stage for batch mining.

Proposed Solution

• Patient ID in the batch: Include patient_id in the window data struct to allow for tracking the patient and mining positive and negative pairs