Hello! In this task you will teach your computer a new mouse gesture using the interface below. The mouse gesture that you will teach is alpha, which looks like . You will teach by showing examples of alpha gestures as well as gestures that are not alpha. These include the six gestures . Use the mouse to make the gesture in the square area and use the buttons on the left to submit them as examples of alpha or non-alpha. In order to observe what has been learned, you can make a gesture and press the "?" button to see what it is classified as. Try not to show redundant examples or ask redundant questions. You can stop teaching when you think the computer can reliably recognize the gestures.

  • The examples and questions you provide will be evaluated by a researcher. Please make sure you understand your task and do not provide random examples and questions.
  • After you train your gesture recognizer, it will be tested on the classification of a large set of gestures. A bonus of 4$ will be awarded to the teacher who trains the best performing recognizer with the least number of examples and questions.
  • When you are done teaching please answer the three questions given below the applet.
  • Allow about 1 minute for the java applet to load. If you get errors or you are unable to use the applet as expected, try reloading the page or restarting your browser. If the problem persists you can describe the problem in the box at the bottom of the page to get credit for this HIT.
  • After showing an example, allow 2-10 seconds for the recognizer to process your example. The speech bubble will disappear when it is ready for the next example.


  • Questions

    1) Your age

    2) How did you decide that you were done teaching?

    3) Briefly describe your teaching strategy.

    Problems? If you were unable to complete the HIT due to a persisting problem, please give a description of the problem. Make sure to include your operating system and browser information.