Types of ML • Supervised and Unsupervised techniques • Classification and Regression • Basics of Deep Learning • Basics of NLP, CV, ASR • The 3D ML Pipeline • Fun Applications
computers to mimic human intelligence & behaviour A subset of ML exposing multilayered neural networks to vast amount of data A subset of AI that includes statistical techniques to solve the tasks using experience
based on given combinations of data and labels given beforehand • ML systems learn how to combine input to produce useful predictions on never-before-seen data • It is like learning with a teacher
by fitting a line ◦ What is the value of a house in California? ◦ What is the probability that a user will click on this ad? • A classification model predicts discrete values by creating boundaries ◦ Is a given email message spam or not spam? ◦ Is this an image of a dog, a cat, or a hamster?
loss during training but does a poor job predicting new data • Overfitting is caused by making a model more complex than necessary • The fundamental tension of machine learning is between fitting our data well, but also fitting the data as simply as possible
outperforms other techniques if the data size is large. But with small data size, traditional Machine Learning algorithms are preferable • Finding large amount of “Good” data is always a painful task • Deep Learning techniques need to have high end infrastructure to train in reasonable time • When there is lack of domain understanding for feature introspection, Deep Learning techniques outshines others as you have to worry less about feature engineering
time: a Deep Learning algorithm may take weeks or months whereas, traditional Machine Learning algorithms take few seconds or hours • DL never reveals the “how and why” behind the output- it’s a Black Box • Deep Learning really shines when it comes to complex problems such as image classification, natural language processing, and speech recognition • DL excels in tasks where the basic unit (pixel, word) has very little meaning in itself, but the combination of such units has a useful meaning