@inproceedings{ Martin:2015jk, author = {Charles Martin and Henry Gardner and Ben Swift}, booktitle = {Proceedings of the International Conference on New Interfaces for Musical Expression}, title = {Tracking Ensemble Performance on Touch-Screens with Gesture Classification and Transition Matrices}, year = {2015}, abstract = {We present and evaluate a novel interface for tracking ensemble performances on touch-screens. The system uses a Random Forest classifier to extract touch-screen gestures and transition matrix statistics. It analyses the resulting gesture-state sequences across an ensemble of performers. A series of specially designed iPad apps respond to this real-time analysis of free-form gestural performances with calculated modifications to their musical interfaces. We describe our system and evaluate it through cross-validation and profiling as well as concert experience.}, url = {https://nime2015.lsu.edu/proceedings/242/0242-paper.pdf} }