ML Anthology

Multidimensional Prediction Models When the Resolution Context Changes

Adolfo Martínez Usó, José Hernández-Orallo
ECML-PKDD 2015 pp. 509-524
doi:10.1007/978-3-319-23525-7_31 /ecmlpkdd/2015/uso2015ecmlpkdd-multidimensional/

Abstract

Multidimensional data is systematically analysed at multiple granularities by applying aggregate and disaggregate operators (e.g., by the use of OLAP tools). For instance, in a supermarket we may want to predict sales of tomatoes for next week, but we may also be interested in predicting sales for all vegetables (higher up in the product hierarchy) for next Friday (lower down in the time dimension). While the domain and data are the same, the operating context is different. We explore several approaches for multidimensional data when predictions have to be made at different levels (or contexts) of aggregation. One method relies on the same resolution, another approach aggregates predictions bottom-up, a third approach disaggregates predictions top-down and a final technique corrects predictions using the relation between levels. We show how these strategies behave when the resolution context changes, using several machine learning techniques in four application domains.

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Cite

Text

Usó and Hernández-Orallo. "Multidimensional Prediction Models When the Resolution Context Changes." European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, 2015. doi:10.1007/978-3-319-23525-7_31

Markdown

[Usó and Hernández-Orallo. "Multidimensional Prediction Models When the Resolution Context Changes." European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, 2015.](https://mlanthology.org/ecmlpkdd/2015/uso2015ecmlpkdd-multidimensional/) doi:10.1007/978-3-319-23525-7_31

BibTeX

@inproceedings{uso2015ecmlpkdd-multidimensional,
  title     = {{Multidimensional Prediction Models When the Resolution Context Changes}},
  author    = {Usó, Adolfo Martínez and Hernández-Orallo, José},
  booktitle = {European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases},
  year      = {2015},
  pages     = {509-524},
  doi       = {10.1007/978-3-319-23525-7_31},
  url       = {https://mlanthology.org/ecmlpkdd/2015/uso2015ecmlpkdd-multidimensional/}
}