Arti®cial neural network modelling has recently attracted much attention as a new technique for estimation and forecasting in economics and ®nance. The chief advantages of this new approach are that such models can usually ®nd a solution for very complex problems, and that they are free from the ass
Fog forecasting in Cuba. Neural networks versus discriminant analysis
✍ Scribed by Lino R Naranjo-Diaz; Arnaldo P Alfonso
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 330 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1350-4827
No coin nor oath required. For personal study only.
✦ Synopsis
The relative number of correct forecasts is over 70% for both, which can be considered a good performance. When the learning sample is large enough and nearly equi-probabalistic, the L V Q algorithm provides a greater number of correct forecasts than those obtained via the Fisher discriminant function. However, the results attained via the L V Q algorithm are not steady when the learning sample is far from being equi-probabalistic, because the number of fog cases is much reduced. Until larger samples are available for some regions, it will be necessary to use both methods f o r fog forecasting in Cuba.
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