Search Results for author: Urszula Chajewska

Found 9 papers, 6 papers with code

Federated Learning with Neural Graphical Models

no code implementations20 Sep 2023 Urszula Chajewska, Harsh Shrivastava

We develop a FL framework which maintains a global NGM model that learns the averaged information from the local NGM models while keeping the training data within the client's environment.

Federated Learning

Knowledge Propagation over Conditional Independence Graphs

no code implementations10 Aug 2023 Urszula Chajewska, Harsh Shrivastava

Conditional Independence (CI) graph is a special type of a Probabilistic Graphical Model (PGM) where the feature connections are modeled using an undirected graph and the edge weights show the partial correlation strength between the features.

Neural Graph Revealers

1 code implementation27 Feb 2023 Harsh Shrivastava, Urszula Chajewska

Sparse graph recovery methods work well where the data follows their assumptions but often they are not designed for doing downstream probabilistic queries.

Methods for Recovering Conditional Independence Graphs: A Survey

1 code implementation13 Nov 2022 Harsh Shrivastava, Urszula Chajewska

Conditional Independence (CI) graphs are a type of probabilistic graphical models that are primarily used to gain insights about feature relationships.

Neural Graphical Models

2 code implementations2 Oct 2022 Harsh Shrivastava, Urszula Chajewska

Theoretically these models can represent very complex dependency functions, but in practice often simplifying assumptions are made due to computational limitations associated with graph operations.

Multi-Task Learning

uGLAD: Sparse graph recovery by optimizing deep unrolled networks

4 code implementations23 May 2022 Harsh Shrivastava, Urszula Chajewska, Robin Abraham, Xinshi Chen

Our model, uGLAD, builds upon and extends the state-of-the-art model GLAD to the unsupervised setting.

Multi-Task Learning

Discovering Distribution Shifts using Latent Space Representations

1 code implementation4 Feb 2022 Leo Betthauser, Urszula Chajewska, Maurice Diesendruck, Rohith Pesala

Rapid progress in representation learning has led to a proliferation of embedding models, and to associated challenges of model selection and practical application.

Model Selection Representation Learning

Axiomatic Interpretability for Multiclass Additive Models

1 code implementation22 Oct 2018 Xuezhou Zhang, Sarah Tan, Paul Koch, Yin Lou, Urszula Chajewska, Rich Caruana

In the first part of this paper, we generalize a state-of-the-art GAM learning algorithm based on boosted trees to the multiclass setting, and show that this multiclass algorithm outperforms existing GAM learning algorithms and sometimes matches the performance of full complexity models such as gradient boosted trees.

Additive models Binary Classification +1

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