Search Results for author: João M. Pereira

Found 6 papers, 4 papers with code

Tensor Moments of Gaussian Mixture Models: Theory and Applications

1 code implementation14 Feb 2022 João M. Pereira, Joe Kileel, Tamara G. Kolda

In this work, we develop theory and numerical methods for \emph{implicit computations} with moment tensors of GMMs, reducing the computational and storage costs to $\mathcal{O}(n^2)$ and $\mathcal{O}(n^3)$, respectively, for general covariance matrices, and to $\mathcal{O}(n)$ and $\mathcal{O}(n)$, respectively, for diagonal ones.

Tensor Decomposition

Landscape analysis of an improved power method for tensor decomposition

no code implementations NeurIPS 2021 Joe Kileel, Timo Klock, João M. Pereira

In this work, we consider the optimization formulation for symmetric tensor decomposition recently introduced in the Subspace Power Method (SPM) of Kileel and Pereira.

Tensor Decomposition

Identifying Latent Stochastic Differential Equations

1 code implementation12 Jul 2020 Ali Hasan, João M. Pereira, Sina Farsiu, Vahid Tarokh

We present a method for learning latent stochastic differential equations (SDEs) from high-dimensional time series data.

Self-Supervised Learning Time Series +1

Robust Marine Buoy Placement for Ship Detection Using Dropout K-Means

no code implementations2 Jan 2020 Yuting Ng, João M. Pereira, Denis Garagic, Vahid Tarokh

Marine buoys aid in the battle against Illegal, Unreported and Unregulated (IUU) fishing by detecting fishing vessels in their vicinity.

Clustering

Subspace power method for symmetric tensor decomposition and generalized PCA

1 code implementation9 Dec 2019 Joe Kileel, João M. Pereira

We introduce the Subspace Power Method (SPM) for calculating the CP decomposition of low-rank even-order real symmetric tensors.

Numerical Analysis Numerical Analysis Optimization and Control

Learning Partial Differential Equations from Data Using Neural Networks

1 code implementation22 Oct 2019 Ali Hasan, João M. Pereira, Robert Ravier, Sina Farsiu, Vahid Tarokh

We develop a framework for estimating unknown partial differential equations from noisy data, using a deep learning approach.

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