Search Results for author: Hamid Javadi

Found 11 papers, 5 papers with code

Parameters or Privacy: A Provable Tradeoff Between Overparameterization and Membership Inference

1 code implementation2 Feb 2022 Jasper Tan, Blake Mason, Hamid Javadi, Richard G. Baraniuk

A surprising phenomenon in modern machine learning is the ability of a highly overparameterized model to generalize well (small error on the test data) even when it is trained to memorize the training data (zero error on the training data).

Inference Attack Membership Inference Attack +1

The Flip Side of the Reweighted Coin: Duality of Adaptive Dropout and Regularization

1 code implementation NeurIPS 2021 Daniel LeJeune, Hamid Javadi, Richard G. Baraniuk

Among the most successful methods for sparsifying deep (neural) networks are those that adaptively mask the network weights throughout training.

The Implicit Regularization of Ordinary Least Squares Ensembles

1 code implementation10 Oct 2019 Daniel LeJeune, Hamid Javadi, Richard G. Baraniuk

Ensemble methods that average over a collection of independent predictors that are each limited to a subsampling of both the examples and features of the training data command a significant presence in machine learning, such as the ever-popular random forest, yet the nature of the subsampling effect, particularly of the features, is not well understood.

Implicit Rugosity Regularization via Data Augmentation

no code implementations28 May 2019 Daniel LeJeune, Randall Balestriero, Hamid Javadi, Richard G. Baraniuk

Deep (neural) networks have been applied productively in a wide range of supervised and unsupervised learning tasks.

Data Augmentation

Porcupine Neural Networks: Approximating Neural Network Landscapes

no code implementations NeurIPS 2018 Soheil Feizi, Hamid Javadi, Jesse Zhang, David Tse

Neural networks have been used prominently in several machine learning and statistics applications.

False Discovery Rate Control via Debiased Lasso

no code implementations12 Mar 2018 Adel Javanmard, Hamid Javadi

We consider the problem of variable selection in high-dimensional statistical models where the goal is to report a set of variables, out of many predictors $X_1, \dotsc, X_p$, that are relevant to a response of interest.

Variable Selection

An Instability in Variational Inference for Topic Models

no code implementations2 Feb 2018 Behrooz Ghorbani, Hamid Javadi, Andrea Montanari

Namely, for certain regimes of the model parameters, variational inference outputs a non-trivial decomposition into topics.

Topic Models Variational Inference

Tensor Biclustering

1 code implementation NeurIPS 2017 Soheil Feizi, Hamid Javadi, David Tse

Consider a dataset where data is collected on multiple features of multiple individuals over multiple times.

Porcupine Neural Networks: (Almost) All Local Optima are Global

1 code implementation5 Oct 2017 Soheil Feizi, Hamid Javadi, Jesse Zhang, David Tse

Neural networks have been used prominently in several machine learning and statistics applications.

Non-negative Matrix Factorization via Archetypal Analysis

no code implementations8 May 2017 Hamid Javadi, Andrea Montanari

In this paper, we study an approach to NMF that can be traced back to the work of Cutler and Breiman (1994) and does not require the data to be separable, while providing a generally unique decomposition.

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