Search Results for author: Florence Regol

Found 13 papers, 3 papers with code

Interacting Diffusion Processes for Event Sequence Forecasting

no code implementations26 Oct 2023 Mai Zeng, Florence Regol, Mark Coates

Our model is composed of two diffusion processes, one for the time intervals and one for the event types.

Denoising Point Processes

Jointly-Learned Exit and Inference for a Dynamic Neural Network : JEI-DNN

no code implementations13 Oct 2023 Florence Regol, Joud Chataoui, Mark Coates

Training an EDNN architecture is challenging as it consists of two intertwined components: the gating mechanism (GM) that controls early-exiting decisions and the intermediate inference modules (IMs) that perform inference from intermediate representations.

Diffusing Gaussian Mixtures for Generating Categorical Data

1 code implementation8 Mar 2023 Florence Regol, Mark Coates

Learning a categorical distribution comes with its own set of challenges.

Evaluation of Categorical Generative Models -- Bridging the Gap Between Real and Synthetic Data

no code implementations28 Oct 2022 Florence Regol, Anja Kroon, Mark Coates

We validate our evaluation procedure with synthetic experiments on both synthetic generative models and current state-of-the-art categorical generative models.

Contrastive Learning for Time Series on Dynamic Graphs

no code implementations21 Sep 2022 Yitian Zhang, Florence Regol, Antonios Valkanas, Mark Coates

We propose a framework called GraphTNC for unsupervised learning of joint representations of the graph and the time-series.

Activity Recognition Anomaly Detection +3

Bag Graph: Multiple Instance Learning using Bayesian Graph Neural Networks

1 code implementation22 Feb 2022 Soumyasundar Pal, Antonios Valkanas, Florence Regol, Mark Coates

Since a meaningful graph representing dependencies between bags is rarely available, we propose to use a Bayesian GNN framework that can generate a likely graph structure for scenarios where there is uncertainty in the graph or when no graph is available.

Multiple Instance Learning Weakly-supervised Learning

A Framework for Recommending Accurate and Diverse ItemsUsing Bayesian Graph Convolutional Neural Networks

1 code implementation Proceedings of the 26th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining 2020 Jianing Sun, Wei Guo, Dengcheng Zhang, Yingxue Zhang, Florence Regol, Yaochen Hu, Huifeng Guo, Ruiming Tang, Han Yuan, Xiuqiang He, Mark Coates

Because of the multitude of relationships existing in recommender systems, Graph Neural Networks (GNNs) based approaches have been proposed to better characterize the various relationships between a user and items while modeling a user's preferences.

Recommendation Systems

Node Copying for Protection Against Graph Neural Network Topology Attacks

no code implementations9 Jul 2020 Florence Regol, Soumyasundar Pal, Mark Coates

With the increased interest in graph based machine learning techniques, there have been investigations which suggest that these models are also vulnerable to attacks.

Active Learning on Attributed Graphs via Graph Cognizant Logistic Regression and Preemptive Query Generation

no code implementations ICML 2020 Florence Regol, Soumyasundar Pal, Yingxue Zhang, Mark Coates

Node classification in attributed graphs is an important task in multiple practical settings, but it can often be difficult or expensive to obtain labels.

Active Learning Classification +3

Non-Parametric Graph Learning for Bayesian Graph Neural Networks

no code implementations23 Jun 2020 Soumyasundar Pal, Saber Malekmohammadi, Florence Regol, Yingxue Zhang, Yishi Xu, Mark Coates

A Bayesian framework which targets posterior inference of the graph by considering it as a random quantity can be beneficial.

Graph Learning Link Prediction +1

Bayesian Graph Convolutional Neural Networks using Node Copying

no code implementations8 Nov 2019 Soumyasundar Pal, Florence Regol, Mark Coates

Graph convolutional neural networks (GCNN) have numerous applications in different graph based learning tasks.

Node Classification

Bayesian Graph Convolutional Neural Networks Using Non-Parametric Graph Learning

no code implementations26 Oct 2019 Soumyasundar Pal, Florence Regol, Mark Coates

Graph convolutional neural networks (GCNN) have been successfully applied to many different graph based learning tasks including node and graph classification, matrix completion, and learning of node embeddings.

Bayesian Inference General Classification +4

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