Machine Learning Lectures – Andrew Ng, Stanford

The following videos are introduction to ML

lecture 1.1 

Lectures 1.2 to 19 On YouTube

The next videos will go further in the ML subject with special applications, such as convolution networks

Neural Networks and Deep Learning – 43 short videos (less than 10 minutes) 

Improving Deep Neural Networks : Tuning Hyper-parameters – 34 short videos 

Structuring Machines Learning Projects – 22 short videos 

Convolutional networks – Computer vision – 42 short videos 

Sequence Models – 6 short videos