Title
Confidence-based multiclass AdaBoost for physical activity monitoring
Abstract
Physical activity monitoring has recently become an important topic in wearable computing, motivated by e.g. healthcare applications. However, new benchmark results show that the difficulty of the complex classification problems exceeds the potential of existing classifiers. Therefore, this paper proposes the ConfAdaBoost.M1 algorithm. The proposed algorithm is a variant of the AdaBoost.M1 that incorporates well established ideas for confidence based boosting. The method is compared to the most commonly used boosting methods using benchmark datasets from the UCI machine learning repository and it is also evaluated on an activity recognition and an intensity estimation problem, including a large number of physical activities from the recently released PAMAP2 dataset. The presented results indicate that the proposed ConfAdaBoost.M1 algorithm significantly improves the classification performance on most of the evaluated datasets, especially for larger and more complex classification tasks.
Year
DOI
Venue
2013
10.1145/2493988.2494325
ISWC
Keywords
Field
DocType
confidence-based multiclass adaboost,benchmark datasets,m1 algorithm,complex classification problem,new benchmark result,physical activity,activity recognition,physical activity monitoring,proposed algorithm,complex classification task,classification performance,boosting,signal processing,evaluation,multiclass classification,algorithm,control engineering
Signal processing,Data mining,AdaBoost,Activity recognition,Wearable computer,Computer science,Boosting (machine learning),Artificial intelligence,Machine learning,Multiclass classification
Conference
Citations 
PageRank 
References 
11
0.63
12
Authors
3
Name
Order
Citations
PageRank
Attila Reiss141024.01
Gustaf Hendeby221621.37
Didier Stricker31266138.03