Guiding local regression using visualisation


Solving many scientific problems requires effective regression and/or classification models for large high-dimensional datasets. Experts from these problem domains (e.g. biologists, chemists, financial analysts) have insights into the domain which can be helpful in developing powerful models but they need a modelling framework that helps them to use these insights. Data visualisation is an effective technique for presenting data and requiring feedback from the experts. A single global regression model can rarely capture the full behavioural variability of a huge multi-dimensional dataset. Instead, local regression models, each focused on a separate area of input space, often work better since the behaviour of different areas may vary. Classical local models such as Mixture of Experts segment the input space automatically, which is not always effective and it also lacks involvement of the domain experts to guide a meaningful segmentation of the input space. In this paper we addresses this issue by allowing domain experts to interactively segment the input space using data visualisation. The segmentation output obtained is then further used to develop effective local regression models.

Divisions: ?? 50811700Jl ??
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies
Additional Information: The original publication is available at Deterministic and Statistical Methods in Machine Learning: First International Workshop, Sheffield (UK), 7-10 September 2004
Uncontrolled Keywords: regression models, classification models, large high-dimensional datasets
Publication ISSN: 0302-9743
Last Modified: 29 Sep 2023 09:59
Date Deposited: 12 May 2010 13:34
Published Date: 2005-10-15
Authors: Maniyar, Dharmesh M.
Nabney, Ian T.


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