Mamer, T, Bryant, CH ORCID: https://orcid.org/0000-0002-9002-8343 and McCall, JM
2008,
'L-modified ILP evaluation functions for positive-only biological grammar learning'
, in:
Inductive logic programming
, Lecture notes in artificial intelligence
(5194)
, Springer, Berlin / Heidelberg, Germany, pp. 176-191.
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Abstract
We identify a shortcoming of a standard positive-only clause evaluation function within the context of learning biological grammars. To overcome this shortcoming we propose L-modification, a modification to this evaluation function such that the lengths of individual examples are considered. We use a set of bio-sequences known as neuropeptide precursor middles (NPP-middles). Using L-modification to learn from these NPP-middles results in induced grammars that have a better performance than that achieved when using the standard positive-only clause evaluation function. We also show that L-modification improves the performance of induced grammars when learning on short, medium or long NPPs-middles. A potential disadvantage of L-modification is discussed. Finally, we show that, as the limit on the search space size increases, the greater is the increase in predictive performance arising from L-modification.
Item Type: | Book Section |
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Editors: | Zelezny, F and Lavrac, N |
Additional Information: | Paper originally presented at the 18th International Conference, ILP 2008 Prague, Czech Republic, September 10-12 2008 |
Themes: | Subjects / Themes > Q Science > QA Mathematics > QA075 Electronic computers. Computer science Subjects / Themes > Q Science > QH Natural history > QH301 Biology Subjects outside of the University Themes |
Schools: | Schools > School of Computing, Science and Engineering Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre |
Publisher: | Springer |
Refereed: | Yes |
Series Name: | Lecture notes in artificial intelligence |
ISBN: | 9783540859277 |
Related URLs: | |
Depositing User: | Dr Chris H. Bryant |
Date Deposited: | 16 Feb 2009 13:41 |
Last Modified: | 19 Feb 2019 14:07 |
URI: | http://usir.salford.ac.uk/id/eprint/1753 |
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