1 - I have never used it
2
3
4 - I have used it in the past and can get up to speed in a short time
5
6
7 - I use it for most of my projects
Custom web site development
Amazon Mechanical Turk (Graphical interface)
Amazon Mechanical Turk (Command Line Tool)
Deep Learning Package (e.g. Matlab Deep Learning toolbox, Keras, Tensorflow)
Natural Language Processing (Topic Models, Sentiment Analysis, Text Categorization)