ECGAN: Self-supervised generative adversarial network for
electrocardiography
- URL: http://arxiv.org/abs/2301.09496v1
- Date: Mon, 23 Jan 2023 15:48:02 GMT
- Title: ECGAN: Self-supervised generative adversarial network for
electrocardiography
- Authors: Lorenzo Simone and Davide Bacciu
- Abstract summary: High-quality synthetic data can support the development of effective predictive models for biomedical tasks.
These limitations, for instance, negatively impact open access to electrocardiography datasets about arrhythmias.
This work introduces a self-supervised approach to the generation of synthetic electrocardiography time series.
- Score: 11.460692362624533
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: High-quality synthetic data can support the development of effective
predictive models for biomedical tasks, especially in rare diseases or when
subject to compelling privacy constraints. These limitations, for instance,
negatively impact open access to electrocardiography datasets about
arrhythmias. This work introduces a self-supervised approach to the generation
of synthetic electrocardiography time series which is shown to promote
morphological plausibility. Our model (ECGAN) allows conditioning the
generative process for specific rhythm abnormalities, enhancing synchronization
and diversity across samples with respect to literature models. A dedicated
sample quality assessment framework is also defined, leveraging arrhythmia
classifiers. The empirical results highlight a substantial improvement against
state-of-the-art generative models for sequences and audio synthesis.
Related papers
- Generating Multi-Modal and Multi-Attribute Single-Cell Counts with CFGen [76.02070962797794]
We present Cell Flow for Generation, a flow-based conditional generative model for multi-modal single-cell counts.
Our results suggest improved recovery of crucial biological data characteristics while accounting for novel generative tasks.
arXiv Detail & Related papers (2024-07-16T14:05:03Z) - SSSD-ECG-nle: New Label Embeddings with Structured State-Space Models for ECG generation [0.0]
Diffusion models have made significant progress in recent years, creating the possibility for synthesizing data comparable to the real one.
We propose the SSSD-ECG-nle architecture based on SSSD-ECG with a modified conditioning mechanism and demonstrate its efficiency on downstream tasks.
arXiv Detail & Related papers (2024-07-15T16:31:25Z) - Synthesizing Multimodal Electronic Health Records via Predictive Diffusion Models [69.06149482021071]
We propose a novel EHR data generation model called EHRPD.
It is a diffusion-based model designed to predict the next visit based on the current one while also incorporating time interval estimation.
We conduct experiments on two public datasets and evaluate EHRPD from fidelity, privacy, and utility perspectives.
arXiv Detail & Related papers (2024-06-20T02:20:23Z) - Debiasing Cardiac Imaging with Controlled Latent Diffusion Models [1.802269171647208]
We propose a method to alleviate imbalances inherent in datasets through the generation of synthetic data.
We adopt ControlNet based on a denoising diffusion probabilistic model to condition on text assembled from patient metadata and cardiac geometry.
Our experiments demonstrate the effectiveness of the proposed approach in mitigating dataset imbalances.
arXiv Detail & Related papers (2024-03-28T15:41:43Z) - Digital twinning of cardiac electrophysiology models from the surface
ECG: a geodesic backpropagation approach [39.36827689390718]
We introduce a novel method, Geodesic-BP, to solve the inverse eikonal problem.
We show that Geodesic-BP can reconstruct a simulated cardiac activation with high accuracy in a synthetic test case.
Given the future shift towards personalized medicine, Geodesic-BP has the potential to help in future functionalizations of cardiac models.
arXiv Detail & Related papers (2023-08-16T14:57:12Z) - Individualized Dosing Dynamics via Neural Eigen Decomposition [51.62933814971523]
We introduce the Neural Eigen Differential Equation algorithm (NESDE)
NESDE provides individualized modeling, tunable generalization to new treatment policies, and fast, continuous, closed-form prediction.
We demonstrate the robustness of NESDE in both synthetic and real medical problems, and use the learned dynamics to publish simulated medical gym environments.
arXiv Detail & Related papers (2023-06-24T17:01:51Z) - MedDiff: Generating Electronic Health Records using Accelerated
Denoising Diffusion Model [5.677138915301383]
We present a novel generative model based on diffusion models that is the first successful application on electronic health records.
Our model proposes a mechanism to perform class-conditional sampling to preserve label information.
arXiv Detail & Related papers (2023-02-08T22:06:34Z) - Your Autoregressive Generative Model Can be Better If You Treat It as an
Energy-Based One [83.5162421521224]
We propose a unique method termed E-ARM for training autoregressive generative models.
E-ARM takes advantage of a well-designed energy-based learning objective.
We show that E-ARM can be trained efficiently and is capable of alleviating the exposure bias problem.
arXiv Detail & Related papers (2022-06-26T10:58:41Z) - Factored Attention and Embedding for Unstructured-view Topic-related
Ultrasound Report Generation [70.7778938191405]
We propose a novel factored attention and embedding model (termed FAE-Gen) for the unstructured-view topic-related ultrasound report generation.
The proposed FAE-Gen mainly consists of two modules, i.e., view-guided factored attention and topic-oriented factored embedding, which capture the homogeneous and heterogeneous morphological characteristic across different views.
arXiv Detail & Related papers (2022-03-12T15:24:03Z) - Synthetic ECG Signal Generation Using Generative Neural Networks [7.122393663641668]
We studied the synthetic ECG generation capability of 5 different models from the generative adversarial network (GAN) family.
The results show that all the tested models can to an extent successfully mass-generate acceptable heartbeats with high similarity in morphological features.
arXiv Detail & Related papers (2021-12-05T20:28:55Z) - Generalizing electrocardiogram delineation: training convolutional
neural networks with synthetic data augmentation [63.51064808536065]
Existing databases for ECG delineation are small, being insufficient in size and in the array of pathological conditions they represent.
This article delves has two main contributions. First, a pseudo-synthetic data generation algorithm was developed, based in probabilistically composing ECG traces given "pools" of fundamental segments, as cropped from the original databases, and a set of rules for their arrangement into coherent synthetic traces.
Second, two novel segmentation-based loss functions have been developed, which attempt at enforcing the prediction of an exact number of independent structures and at producing closer segmentation boundaries by focusing on a reduced number of samples.
arXiv Detail & Related papers (2021-11-25T10:11:41Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.