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Multiple-input neural networks for time series forecasting incorporating historical and prospective context

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Multiple-Input Neural Networks for Time Series Forecasting Incorporating Historical and Prospective Context

This repository is the implementation of Multiple-Input Neural Networks for Time Series Forecasting Incorporating Historical and Prospective Context.

Abstract

Individual and societal systems are open systems continuously affected by their situational context. In recent years, context sources have been increasingly considered in different domains to aid short and long-term forecasts of systems' behavior. Nevertheless, available research generally disregards the role of prospective context, such as calendrical planning or weather forecasts. This work proposes a multiple-input neural architecture consisting of a sequential composition of long short-term memory (LSTM) networks able to incorporate both historical and prospective sources of situational context to aid time series forecasting tasks. Considering urban case studies, we further assess the impact that different sources of external context have on medical emergency and mobility forecasts. Results show that the incorporation of external context variables, including calendrical and weather variables, can significantly reduce forecasting errors against state-of-the-art forecasters. In particular, the incorporation of prospective context, generally neglected in related work, mitigates error increase along the forecasting horizon.

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Multiple-input neural networks for time series forecasting incorporating historical and prospective context

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