Search Results for author: Ivan Marisca

Found 6 papers, 4 papers with code

Graph-based Forecasting with Missing Data through Spatiotemporal Downsampling

no code implementations16 Feb 2024 Ivan Marisca, Cesare Alippi, Filippo Maria Bianchi

The input time series are progressively coarsened over time and space, obtaining a pool of representations that capture heterogeneous temporal and spatial dynamics.

Time Series

Graph Deep Learning for Time Series Forecasting

no code implementations24 Oct 2023 Andrea Cini, Ivan Marisca, Daniele Zambon, Cesare Alippi

The conditioning can take the form of an architectural inductive bias on the neural forecasting architecture, resulting in a family of deep learning models called spatiotemporal graph neural networks.

Inductive Bias Time Series +1

Taming Local Effects in Graph-based Spatiotemporal Forecasting

1 code implementation NeurIPS 2023 Andrea Cini, Ivan Marisca, Daniele Zambon, Cesare Alippi

Spatiotemporal graph neural networks have shown to be effective in time series forecasting applications, achieving better performance than standard univariate predictors in several settings.

Time Series Time Series Forecasting

Scalable Spatiotemporal Graph Neural Networks

1 code implementation14 Sep 2022 Andrea Cini, Ivan Marisca, Filippo Maria Bianchi, Cesare Alippi

The training procedure can then be parallelized node-wise by sampling the node embeddings without breaking any dependency, thus enabling scalability to large networks.

Temporal Sequences Time Series +1

Learning to Reconstruct Missing Data from Spatiotemporal Graphs with Sparse Observations

2 code implementations26 May 2022 Ivan Marisca, Andrea Cini, Cesare Alippi

In particular, we propose a novel class of attention-based architectures that, given a set of highly sparse discrete observations, learn a representation for points in time and space by exploiting a spatiotemporal propagation architecture aligned with the imputation task.

Multivariate Time Series Imputation Time Series +2

Filling the G_ap_s: Multivariate Time Series Imputation by Graph Neural Networks

2 code implementations ICLR 2022 Andrea Cini, Ivan Marisca, Cesare Alippi

In particular, we introduce a novel graph neural network architecture, named GRIN, which aims at reconstructing missing data in the different channels of a multivariate time series by learning spatio-temporal representations through message passing.

Multivariate Time Series Imputation Time Series +2

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