Foundation model

Lead-adaptive SSL ECG model (VQ-VAE tokenizer + lead-adaptive MAE; BSPC 2026)

ECGBiomedical Signal Processing and Control, Weights: not released
Cite
Venue listedCatalog paper date: 2026Added to atlas: Oct 22, 2026Source

Activity counts measure attention, not model quality. Missing counts are unknown. Publication status follows the linked source; a listed venue alone does not confirm peer review.

Average macro-F1 over a plain MAE baseline: +2.56 (broad multi-label), +4.85 (morphology), +12.80 (rhythm) across nine downstream tasks. No comparison with published ECG FMs in the abstract, so no board row.

Signals
ECG
Form factor
Any
Year
2026
Architecture

Stage 1: VQ-VAE ECG tokenizer producing morphology-aware waveform tokens with patch and lead-time positional encodings. Stage 2: masked autoencoder with an adaptive-lead training algorithm so one backbone accepts 1-, 3-, 8- and 12-lead input (paper-reported description)

Pretraining data

178,602 multi-center ECG records (sources not named in the abstract)

At a glance
Type
Foundation model
Modalities
ECG
Form factor
Any
Parameters
Not reported
Architecture
Stage 1: VQ-VAE ECG tokenizer producing morphology-aware waveform tokens with patch and lead-time positional encodings. Stage 2: masked autoencoder with an adaptive-lead training algorithm so one backbone accepts 1-, 3-, 8- and 12-lead input (paper-reported description)
Venue
Biomedical Signal Processing and Control, 2026-10-21
Year
2026
arXiv
Not reported
Code
Not released
Weights
Not released
Licence
Not reported
Caveats
Not reported
Datasets
Not reported
Added
Oct 22, 2026
Updated
Oct 26, 2026

Abstract

Background Electrocardiogram (ECG) is a critical non-invasive tool for the early detection of cardiovascular diseases. However, ECG interpretation remains challenging because of signal complexity, limited medical resources, and heterogeneous monitoring settings. Most deep learning models are still designed for specific tasks and fixed lead configurations, limiting their transfer across clinical and wearable ECG scenarios. Objective This study aims to develop a lead-adaptive self-supervised ECG representation model that supports transferable analysis across representative tasks and lead configurations. Methods The proposed model follows a two-stage framework. First, a VQ-VAE-based ECG tokenizer converts raw ECG segments into morphology-aware waveform tokens and integrates patch and lead-time positional encodings to retain spatiotemporal context. Second, a Masked Autoencoder (MAE) extracts rich representations from unlabeled data, empowered by a novel adaptive-lead training algorithm to generalize across varying lead configurations. Results After pretraining on 178,602 multi-center ECG records, the model was evaluated on nine downstream ECG tasks under representative 1-, 3-, 8-, and 12-lead settings. Compared with a plain MAE baseline, it improved average macro-F1 by +2.56, +4.85, and +12.80 points on broad multi-label, morphology-related, and rhythm-related classification, respectively. Ablation analyses further supported the contributions of ECG tokenization and lead-adaptive pretraining. Conclusions The proposed model improves representation transfer across the evaluated ECG monitoring scenarios. By providing a robust representation backbone for intelligent ECG analysis, it offers a transferable technical solution for clinical ECG interpretation and wearable ECG monitoring, and may reduce the need to develop separate models for each task and lead configuration.

Verbatim fromOpenAlex· Abstract via OpenAlex (publisher-deposited); © the authors/publisher

Lead-adaptive SSL ECG model (VQ-VAE tokenizer + lead-adaptive MAE; BSPC 2026): ChatPPG research summary card

Key results

2.56
MAE
Average macro-F1 over a plain MAE baseline: +2.56 (broad multi-label), +4.85 (morphology), +12.80 (rhythm) across nine downstream tasks

How it works

How Lead-adaptive SSL ECG model (VQ-VAE tokenizer + lead-adaptive MAE; BSPC 2026) works: Input signals → Foundation model → Downstream tasksInput signals: ECG (Electrocardiogram). Pretraining data: 178,602 multi-center ECG records (sources not named in the abstract). Foundation model: Lead-adaptive SSL ECG model (VQ-VAE tokenizer + lead-adaptive MAE; BSPC 2026) (Masked reconstruction).Input signalsECG: ElectrocardiogramECGElectrocardiogramPretraining data: 178,602 multi-center ECG records (sources not named in the abstract)Pretraining data178,602 multi-center ECG recordsFoundation modelMASK → RECONSTRUCTLead-adaptive SSL ECG model…Masked reconstruction
Pretraining data
178,602 multi-center ECG records (sources not named in the abstract)
Architecture
Stage 1: VQ-VAE ECG tokenizer producing morphology-aware waveform tokens with patch and lead-time positional encodings. Stage 2: masked autoencoder with an adaptive-lead training algorithm so one backbone accepts 1-, 3-, 8- and 12-lead input (paper-reported description)
Inputs
ECG
Approach
foundation model · ECG · VQ VAE · tokenizer · masked autoencoder · lead adaptive

Datasets

No public datasets linked yet.

Papers· 1

Cite

APA

Li, Z., Tian, Y., Wei, X., Wang, M., Jin, Y., Shi, Z., Xiaohan, T., Liu, Y., Zhao, L., & Liu, C. (2026). Lead-adaptive self-supervised ECG representation model for multi-scenario ECG monitoring. Biomedical Signal Processing and Control, 2026-10-21. https://doi.org/10.1016/j.bspc.2026.111680

BibTeX

@article{li2026leadadaptive,
  title         = {{Lead-adaptive self-supervised ECG representation model for multi-scenario ECG monitoring}},
  author        = {Li, Zhiyuan and Tian, Yuanyuan and Wei, Xiaoyang and Wang, Mengxiao and Jin, Yanrui and Shi, Zehua and Xiaohan, Tang and Liu, Yushun and Zhao, Liqun and Liu, Chengliang},
  year          = {2026},
  journal       = {Biomedical Signal Processing and Control, 2026-10-21},
  doi           = {10.1016/j.bspc.2026.111680}
}

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