A Comparison between Neural Network Methods for Learning Aggregate Functions

  • Authors:
  • Werner Uwents;Hendrik Blockeel

  • Affiliations:
  • Department of Computer Science, Katholieke Universiteit Leuven,;Department of Computer Science, Katholieke Universiteit Leuven, and Leiden Institute of Advanced Computer Science, Leiden University,

  • Venue:
  • DS '08 Proceedings of the 11th International Conference on Discovery Science
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

In various application domains, data can be represented as bags of vectors instead of single vectors. Learning aggregate functions from such bags is a challenging problem. In this paper, a number of simple neural network approaches and a combined approach based on cascade-correlation are examined in order to handle this kind of data. Adapted feedforward networks, recurrent networks and networks with special aggregation units integrated in the network can all be used to construct networks that are capable of learning aggregate function. A combination of these three approaches is possible by using cascade-correlation, creating a method that automatically chooses the best of these options. Results on artificial and multi-instance data sets are reported, allowing a comparison between the different approaches.