One account per participant You cannot sign up to Kaggle from multiple accounts and therefore you cannot submit from multiple accounts. Team Limits There is no maximum team size. Submission Limits You may submit a maximum of 1 entries per day. You may select up to 4 final submissions for judging. Competition Timeline Start Date: TBA Merger Deadline: None Entry Deadline: None End Date: 2/1/2014 12:00 AM UTC External Data Use of external data is allowed . Data manipulation Manipulation of provided training and development data is allowed . The development dataset (training dataset) can be augmented without use of external data (e.g. by mixing data sampled from a pdf or using techniques such as pitch shifting or time stretching). Test Data Participants are not allowed to make subjective judgments of the test data, nor to annotate it. The test data cannot be used to train the submitted system; the use of statistics about the test data in the decision making is also forbidden. Classification decision must be done independently for each test sample. One cannot use information from other test items when predicting the scene label. Dataset license Additionally, you agree that the use of provided data is limited to this competition and bound by the LICENSE (see "Data" section of the competition). Essentially, the LICENSE prohibits any commercial use of the dataset.