Talk on `Advances in promotional modelling and demand forecasting’

On 16/11/2016 I gave a talk at the Stockholm School of Economics on the topic of advances in modelling and demand forecasting. Given the diversity of the audience I avoided going into the details of the mathematical formulations, some of which can be found in the appendix of the presentation. The presentation summarises three different… Read More »

MAPAx available for R & new MAPA package on CRAN

The previous version of the MAPA package implemented only the univariate aspect of the algorithm. Version 2.0.1 implements MAPAx as well, which allows incorporating regressors in your forecasts. In this paper we demonstrated the usefulness of temporal aggregation in the case of forecasting demand in the presence of promotions. In particular, we showed that MAPAx… Read More »

MAPA package for R on GitHub

Here is the link: https://github.com/trnnick/mapa It has been a long time I wanted to rework the MAPA package for R, but I could not find the time. Finally I got around starting it. There are three objectives in this: Clean up code and introduce S3methods. MAPA was the first package that I wrote! Incorporate the… Read More »

TStools recent changes

We have been re-working the TStools package over the past couple of weeks. The major changes are: The es function that is an alternative to the ets function from the forecast package has been removed. Now it is published separately in the smooth package, which contains a collection of interesting implementations for exponential smoothing, ARIMA… Read More »

ABC-XYZ analysis for forecasting

The ABC-XYZ analysis is a very popular tool in supply chain management. It is based on the Pareto principle, i.e. the expectation that the minority of cases has a disproportional impact to the whole. This is often referred to as the 80/20 rule, with the classical example that the 80% of the wealth is owned… Read More »

ISIR 2016 research presentations

Last August I attended the International Symposium on Inventories, organised by the International Society for Inventory Research (ISIR 2016). This is the second time I had attended this conference and it has been again a very good experience. Interesting talks on a variety of relevant topics to forecasting research. I organised a special track on… Read More »

ISF 2016 research presentations

It has been a while since I got the time to post any updates, but finally got round to it. Last June I attended the International Symposium on Forecasting (ISF) at Santander, which had been very interesting and enjoyable. I had already posted about the presentations I gave. I was involved in a number of… Read More »

SAS-IIF Grant to Promote Research on Forecasting 2016

Every year the International Institute of Forecasters (IIF) in collaboration with SAS has been supporting forecasting research with grants up to $5,000. The application deadline for this year is the 30th of September 2016. Applications must include: Description of the project, up to 4 pages; Letter of support from the home institution that the researcher… Read More »