Combining classifiers to detect faults in wastewater networks

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Joshua MyransRichard Everson

Abstract

This work presents a methodology for automatic detection of structural faults in sewers from CCTV footage, which has been improved by combining the outputs of different machine learning techniques. The predictions of support vector machine and random forest classifiers are combined using three distinct techniques: 'both', 'most likely' and 'stacking'. Each technique is tested on CCTV data taken from real surveys covering a range of pipes at locations in the south-west of the UK. The best tested technique, stacking, offers a 5% increase in accuracy for minimal impact in efficiency, proving useful for future development and implementation of the fault detection methodology.

References

Nov 18, 2010·Journal of Chemical Information and Modeling·Shrihari Sonavane, Pinak Chakrabarti

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