sysdata

Meta data needed to run the autoBagging method.

datasets

A framework for automated machine learning. Concretely, the focus is on the optimisation of bagging workflows. A bagging workflows is composed by three phases: (i) generation: which and how many predictive models to learn; (ii) pruning: after learning a set of models, the worst ones are cut off from the ensemble; and (iii) integration: how the models are combined for predicting a new observation. autoBagging optimises these processes by combining metalearning and a learning to rank approach to learn from metadata. It automatically ranks 63 bagging workflows by exploiting past performance and dataset characterization. A complete description of the method can be found in: Pinto, F., Cerqueira, V., Soares, C., Mendes-Moreira, J. (2017): "autoBagging: Learning to Rank Bagging Workflows with Metalearning" arXiv preprint arXiv:1706.09367.

Vitor Cerqueira

autoBagging

Learning to Rank Bagging Workflows with Metalearning

Fabio Pinto

Carlos Soares

Joao Mendes-Moreira

sysdata function

a list comprising the following information<dl class="dl-horizontal">
 <dt>avgRankMatrix</dt><dd>the average rank data regarding each bagging
 workflow</dd>
 <dt>workflows</dt><dd>metadata on the bagging workflows</dd>
 <dt>MaxMinMetafeatures</dt><dd>range data on each metafeature</dd>
 <dt>metafeatures</dt><dd>names and values of each metafeatures used
 to describe the datasets</dd>
 <dt>metamodel</dt><dd>the xgboost ranking metamodel</dd>
</dl>

Format

sysdata — sysdata

a list comprising the following information<dl class='dl-horizontal'>
 <dt>avgRankMatrix</dt><dd>the average rank data regarding each bagging
 workflow</dd>
 <dt>workflows</dt><dd>metadata on the bagging workflows</dd>
 <dt>MaxMinMetafeatures</dt><dd>range data on each metafeature</dd>
 <dt>metafeatures</dt><dd>names and values of each metafeatures used
 to describe the datasets</dd>
 <dt>metamodel</dt><dd>the xgboost ranking metamodel</dd>
</dl>

sysdata: sysdata

Description

Usage

Arguments

Format