Mav vs Stanford - Week 4MONDAY, NOVEMBER 07, 2011
Stanford is offering 3 courses online: Introduction to Databases, Introduction to Artificial Intelligence, Machine Learning. I plan on completing all the advanced tasks every week, and posting my thoughts / reflections every Sunday. This is week 2, Sunday October 23, 2011
Introduction to Databases
I should just leave this as a permanent message: I still haven't watched any of the videos, I'm not sure how much longer this can keep up.
Quiz 1: SQL Movie-Rating Query Exercises
There are 4 tables, involving movies, reviewers and ratings. This quiz is similar to the quiz last week, except SQL is used this time. This took a bit of adjustment, but I am far more familiar with SQL than the relational algebra syntax, so this quiz was relatively easy.
1 Attempt: 9/9
Note: There was 4 quizzes, and they all seemed more or less the same, so I only did the first one.
Moving into meatier content, with non-linear regressions and smoothing parameters (regularization).
Quiz 8: Neural Networks: Representation
Neural networks are an interesting concept, by having a web of inputs it appears that a faster response can be generated to respond to a problem. Alternately, if there are a large number of inputs, they can be used to filter out some inputs through series of operations. This unit didn't talk too much about how to apply this to neural networks, and instead talked mostly about truth tables. The next unit is supposedly about "learning" though
2 Attempts: 4.5/5, 5/5
Assignment 3: Multi-class classification and neural networks
The assignments are getting progressively harder, but my time management has failed me again. I only managed some weak attempts at most of the questions.
Introduction to Artificial Intelligence
Previous week's homework: 93%
Unit 7: Representation with Logic
I'm blanking out, but this unit was about logic, stating which states are possible, given another state. Whether or not statements are valid or invalid. Overall, seemed relatively basic.
Video Lecture Score: 68%
Unit 8: Planning
I didn't watch the videos, but the general concept is that events can be specified in advance, and they are defined within the plan.
Video Lecture Score: 0%
More of the same, various logic problems with radio buttons and checkboxes
What I've Learned
The lecture material for machine learning isn't too bad, but the programming assignments seem to take over an hour. Definitely wasn't smart to start at 11 on Sunday