Search Results for author: Arman Hasanzadeh

Found 11 papers, 6 papers with code

Adaptive Conditional Quantile Neural Processes

1 code implementation30 May 2023 Peiman Mohseni, Nick Duffield, Bani Mallick, Arman Hasanzadeh

Neural processes are a family of probabilistic models that inherit the flexibility of neural networks to parameterize stochastic processes.

Image Inpainting Meta-Learning +1

MoReL: Multi-omics Relational Learning

no code implementations ICLR 2022 Arman Hasanzadeh, Ehsan Hajiramezanali, Nick Duffield, Xiaoning Qian

Multi-omics data analysis has the potential to discover hidden molecular interactions, revealing potential regulatory and/or signal transduction pathways for cellular processes of interest when studying life and disease systems.

Graph Embedding Relational Reasoning

Bayesian Graph Contrastive Learning

no code implementations15 Dec 2021 Arman Hasanzadeh, Mohammadreza Armandpour, Ehsan Hajiramezanali, Mingyuan Zhou, Nick Duffield, Krishna Narayanan

By learning distributional representations, we provide uncertainty estimates in downstream graph analytics tasks and increase the expressive power of the predictive model.

Contrastive Learning Self-Supervised Learning +1

BayReL: Bayesian Relational Learning for Multi-omics Data Integration

1 code implementation NeurIPS 2020 Ehsan Hajiramezanali, Arman Hasanzadeh, Nick Duffield, Krishna R Narayanan, Xiaoning Qian

High-throughput molecular profiling technologies have produced high-dimensional multi-omics data, enabling systematic understanding of living systems at the genome scale.

Data Integration Relational Reasoning +1

Bayesian Graph Neural Networks with Adaptive Connection Sampling

1 code implementation ICML 2020 Arman Hasanzadeh, Ehsan Hajiramezanali, Shahin Boluki, Mingyuan Zhou, Nick Duffield, Krishna Narayanan, Xiaoning Qian

We propose a unified framework for adaptive connection sampling in graph neural networks (GNNs) that generalizes existing stochastic regularization methods for training GNNs.

Node Classification

Network-principled deep generative models for designing drug combinations as graph sets

1 code implementation16 Apr 2020 Mostafa Karimi, Arman Hasanzadeh, Yang shen

We have developed the first deep generative model for drug combination design, by jointly embedding graph-structured domain knowledge and iteratively training a reinforcement learning-based chemical graph-set designer.

Graph Embedding Reinforcement Learning

Semi-Implicit Stochastic Recurrent Neural Networks

no code implementations28 Oct 2019 Ehsan Hajiramezanali, Arman Hasanzadeh, Nick Duffield, Krishna Narayanan, Mingyuan Zhou, Xiaoning Qian

Stochastic recurrent neural networks with latent random variables of complex dependency structures have shown to be more successful in modeling sequential data than deterministic deep models.

Variational Inference

Variational Graph Recurrent Neural Networks

2 code implementations NeurIPS 2019 Ehsan Hajiramezanali, Arman Hasanzadeh, Nick Duffield, Krishna R. Narayanan, Mingyuan Zhou, Xiaoning Qian

Representation learning over graph structured data has been mostly studied in static graph settings while efforts for modeling dynamic graphs are still scant.

Attribute Dynamic Link Prediction +2

Semi-Implicit Graph Variational Auto-Encoders

1 code implementation NeurIPS 2019 Arman Hasanzadeh, Ehsan Hajiramezanali, Nick Duffield, Krishna R. Narayanan, Mingyuan Zhou, Xiaoning Qian

Compared to VGAE, the derived graph latent representations by SIG-VAE are more interpretable, due to more expressive generative model and more faithful inference enabled by the flexible semi-implicit construction.

Decoder Variational Inference

Spatially-Coupled Neural Network Architectures

no code implementations3 Jul 2019 Arman Hasanzadeh, Nagaraj T. Janakiraman, Vamsi K. Amalladinne, Krishna R. Narayanan

In this work, we leverage advances in sparse coding techniques to reduce the number of trainable parameters in a fully connected neural network.

Feature Importance

A Graph Signal Processing Approach For Real-Time Traffic Prediction In Transportation Networks

no code implementations19 Nov 2017 Arman Hasanzadeh, Xi Liu, Nick Duffield, Krishna R. Narayanan, Byron Chigoy

Building a prediction model for transportation networks is challenging because spatio-temporal dependencies of traffic data in different roads are complex and the graph constructed from road networks is very large.

Clustering Management +3

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