Tag Archives: optimisation

Forecasting Solar Irradiance: True models, trace optimisation and shrinkage

This is a talk I am giving today at Tasmanian School of Business and Economics at University of Tasmania. It connects two different research areas I am currently working on: solar irradiance forecasting and parameter optimisation under model uncertainty. You can find the presentation here. Half of the presentation is based on this paper if… Read More »

Choosing parameters for Croston’s method and its variants

Although Croston’s method and its variants are popular for intermittent demand time series, there have been limited advances in identifying how to select appropriate smoothing parameters and initial values. From the one hand this complicates forecasting for organisations, and from the other hand it does not permit automation. Recent research investigated various cost functions for… Read More »

MAPA and intermittent demand forecasting

Recently I posted about a paper I co-authored with Fotios Petropoulos, now in JORS: Forecast Combinations for Intermittent Demand. There we found that for intermittent demand data using multiple levels of temporal aggregation, forecasting them with the appropriate models and finally combining the forecasts performed best. This approach has many analogies with the MAPA algorithm… Read More »