Next Tuesday will the the first summer installment of the seminar series. Ryan Sammon will be talking about “Data Collection, Analysis, and Classification for the Development of a Sailing Performance Evaluation System”. The talk abstract follows below.
Date: Tuesday May 28, 2013
Location: CBY B205
Data Collection, Analysis, and Classication for the Development of a Sailing Performance Evaluation System
The performance of teams in vehicle racing scenarios is heavily dependant on the actions of the vehicle crew. In automotive racing, the tracks are xed, alowing the driver to evaluate their performance based upon ideal paths around turns and lap times. In sailing, the courses are not as rigidly dened, and the ideal course of action for the crew at any time is completely dependant on the environmental conditions at that time. A simple method for evaluating sailing performance is true speed towards the next mark. This method can only be used when sailing in a straight line. Sailing performance depends heavily on how the crew executes turns. Therefore, a system to evaluate the quality of turn execution is desired. The work described in this thesis contributes to the development of such a system. Data was collected using a Blackberry Playbook axed to a J/24 sail boat during races. This data was manually analysed and annotated with three dierent classes of turns: tacks, gybes, and mark roundings. Tests were run using different combinations of pre-processing algorithms and classication methods. The pre-processing algorithms include Kalman Filtering, categorization using quantiles, and residual normalization. The classication methods used were nearest neighbour search and various types of multilayer perceptron (MLP) committees. Results indicate that nearest neighbour search with Kalman Filtering alone provides the best classication accuracy when part of each turn is presented to the classication methods as training data. However, when no data from a turn is presented to the classication methods as training data, an averaged probability committee of MLPs with Kalman Filtering alone provides the best classication accuracy. The results imply collection of additional data would greatly improve classication accuracy.