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TSSL (Temporal-Spatial Self-Supervised Learning)

12-lead ECG

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ECG

General Purpose / Multi-task

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General / Foundation

Embedding

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Representation Learning

Hybrid

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Hybrid / Multi-branch

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Model weights not public. Contact creators for more information.

Self-supervised representation-learning method for 12-lead ECG signals, designed to reduce reliance on large labeled datasets for downstream ECG classification. TSSL exploits two structural properties of ECG data: temporally, it encourages stable representations for the same individual across time while keeping different leads distinguishable; spatially, it enforces consistency in the relationships between signals and their representations across the different leads of a single recording. Evaluated on three public ECG datasets (CPSC2018, Chapman, PTB-XL), TSSL-pretrained models approached the performance of fully supervised training while using only about 10% of the labeled data.

memory Specifications

category

Architecture

Hybrid

Self-supervised pretraining framework combining a temporal consistency objective (stable per-individual, per-lead representations across time) with a spatial consistency objective (cross-lead relational consistency) for 12-lead ECG representation learning

calendar_month

Added to catalog

2026-08-14

description Publication

Temporal and spatial self supervised learning methods for electrocardiograms open_in_new

Chen W, Wang H, Zhang L, Zhang M

Scientific Reports · 2025 · original paper

DOI: 10.1038/s41598-025-90084-2

database Training & evaluation data

China

12-lead ECG multi-label arrhythmia-classification dataset released for the 2018 China Physiological Signal Challenge.

public 45,152 subjects · China

45,152 12-lead, 10-second ECGs from Chapman University / Shaoxing People's Hospital / Ningbo First Hospital with arrhythmia diagnoses; ~56% male / 44% female.

public 18,885 subjects · Germany · 1989-1996

52% male / 48% female; age range 0-95 (median ~62). 21,837 10-second 12-lead ECG records.

science Capabilities & performance

Self-supervised ECG representation/embedding for downstream fine-tuning on ECG classification tasks (e.g. arrhythmia detection from CPSC2018/Chapman/PTB-XL)

Embedding General Purpose / Multi-task