TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Bauer, Markus
A1  - Kiefer, Daniel
A1  - Grimm, Florian
ED  - Zimmermann, Alfred
ED  - Howlett, Robert
ED  - Jain, Lakhmi
ED  - Schmidt, Rainer
T1  - Sales forecasting under economic crisis: a case study of the impact of the COVID19 crisis to the predictability of sales of a medium-sized enterprise
T2  - Human centred intelligent systems : proceedings of KES-HCIS 2021 conference ; Smart innovation, systems and technologies, volume 244
N2  - Forecasting demand is challenging. Various products exhibit different demand patterns. While demand may be constant and regular for one product, it may be sporadic for another, as well as when demand occurs, it may fluctuate significantly. Forecasting errors are costly and result in obsolete inventory or unsatisfied demand. Methods from statistics, machine learning, and deep learning have been used to predict such demand patterns. Nevertheless, it is not clear for what demand pattern, which algorithm would achieve the best forecast. Therefore, even today a large number of models are used to forecast on a test period. The model with the best result on the test period is used for the actual forecast. This approach is computationally and time intensive and, in most cases, uneconomical. In our paper we show the possibility to use a machine learning classification algorithm, which predicts the best possible model based on the characteristics of a time series. The approach was developed and evaluated on a dataset from a B2B-technical-retailer. The machine learning classification algorithm achieves a mean ROC-AUC of 89%, which emphasizes the skill of the model.
KW  - univariate time series forecasting
KW  - time series characteristics
KW  - machine learning
KW  - model selection
Y1  - 2021
SN  - 978-981-16-3264-8
SB  - 978-981-16-3264-8
U6  - https://doi.org/10.1007/978-981-16-3264-8_16
DO  - https://doi.org/10.1007/978-981-16-3264-8_16
SP  - 163
EP  - 172
S1  - 10
PB  - Springer
CY  - Singapore
ER  -