arXiv Machine Learning

Spectral characteristics of autoencoder parameters as a vector representation of data

The paper investigates how autoencoder parameters reflect the statistical properties of their training data. By analyzing the spectral characteristics of the parameter matrices, the authors show that singular values correspond to the eigenvalues of the data covariance matrix, linking data and parameter spaces. Experiments on CIFAR‑10 and FashionMNIST demonstrate that these spectral vectors can accurately differentiate models trained on different data subsets without complex generation methods or access to the original samples.

Hugging Face Trending Papers
Sep 3

Spectral characteristics of autoencoder parameters as a vector representation of data

The paper investigates how autoencoder parameters reflect the statistical properties of their training data. By analyzing the spectral characteristics of the parameter matrices, it shows that singular values correspond to eigenvalues of the data covariance matrix, linking data and parameter spaces. Experiments on CIFAR‑10 and FashionMNIST demonstrate that these spectral vectors can accurately differentiate models trained on different data subsets without complex generation methods or access to the original samples.

arXiv Machine Learning
Aug 11

A solvable high-dimensional model where nonlinear autoencoders learn structure invisible to PCA while test loss misaligns with generalization

arXiv:2602. 10680v2 Announce Type: replace-cross Abstract: Many real-world datasets contain hidden structure that cannot be detected by simple linear correlations between input features.

By Vicente Conde Mendes, Lorenzo Bardone, C\'edric Koller, Jorge Medina Moreira, Vittorio Erba, Emanuele Troiani, Lenka Zdeborov\'a
arXiv Machine Learning
Jun 25

Variational Autoencoder Layer

arXiv:2606. 25900v1 Announce Type: new Abstract: Variational Autoencoders (VAEs) belong to a family of autoencoders with probabilistic properties, making them well suited for generating data by producing a smooth and continuous latent space.

By Gananath R
Hugging Face Trending Papers
Jun 24

Variational Autoencoder Layer

Variational Autoencoders (VAEs) belong to a family of autoencoders with probabilistic properties, making them well suited for generating data by producing a smooth and continuous latent space. Despite being introduced over a decade ago, the method continues to be widely adopted in both research and industry for diverse applications.

Towards Data Science
Jul 14

A Gentle Introduction to Autoencoders & Latent Space

Introduction Heavy computation is a well-known problem in various ML algorithms today, especially when generative AI is applied to text, images, and other unstructured data. One of the principal approaches to mitigate this problem is to compress input data into a lower-dimensional representation while preserving the main context.

By Vyacheslav Efimov
arXiv Machine Learning
1d ago

Deep Symmetric Autoencoders from the Eckart-Young-Schmidt Perspective

The paper presents a theoretical analysis of symmetric autoencoders, a class of deep learning architectures frequently used in machine learning tasks. It distinguishes between different symmetric designs and shows that the reconstruction error of orthonormal symmetric autoencoders can be interpreted via the Eckart‑Young‑Schmidt theorem. Building on this insight, the authors propose an EYS‑based initialization strategy using repeated SVD, and validate its effectiveness through numerical experiments comparing it to conventional deep autoencoders.

By Simone Brivio, Nicola Rares Franco
arXiv Machine Learning
Sep 21

Time series generation with spectrally aligned latent flow matching

The paper introduces a spectrally-aligned latent-flow model for time‑series generation that trains the latent space to preserve dynamical properties relevant to synthetic data quality. By incorporating fine‑tuning losses based on Fourier, wavelet, and signature transforms, the method mitigates spectral mismatches caused by latent compression and ensures alignment with true signals in terms of smoothness and targeted spectral content. Experiments on real‑world long‑range univariate and multivariate benchmarks show that the aligned model outperforms a base latent‑flow model and state‑of‑the‑art approaches in signal realism, computational efficiency, and local structure alignment.

By Camilo Carvajal Reyes, Felipe Tobar