1 00:00:00,000 --> 00:00:07,301 Welcome to the final lecture on Predict. This week, we'll start with bottom up 2 00:00:07,301 --> 00:00:12,026 prediction. How we can predict future values of data 3 00:00:12,026 --> 00:00:17,978 from the data that we have. We've seen some of this already in 4 00:00:17,978 --> 00:00:22,548 learning. How we can predict what future instances 5 00:00:22,548 --> 00:00:27,118 look like or are part of based on past experience. 6 00:00:27,118 --> 00:00:33,881 But we'll go on to deal with predicting values rather than simply classes. 7 00:00:33,881 --> 00:00:40,827 We'll begin with the very basic prediction technique, which is least-squares 8 00:00:40,827 --> 00:00:45,580 approximation, and function approximation, in general. 9 00:00:46,580 --> 00:00:53,026 Then, we'll go on to show the relationship between prediction, optimization, and then 10 00:00:53,026 --> 00:00:57,220 controlling what you want to do with your predictions. 11 00:00:57,220 --> 00:01:04,965 Next, we'll ask how the brain actually does all these things in a very smooth and 12 00:01:04,965 --> 00:01:11,358 almost invisible manner and talk about some recent developments in something 13 00:01:11,358 --> 00:01:17,778 called hierarchical temporal memory, which is a prediction system modeled after how 14 00:01:17,778 --> 00:01:21,567 the brains and neurons actually are put together. 15 00:01:21,567 --> 00:01:27,831 And it is the latest advance in what was originally the field of neural networks 16 00:01:27,831 --> 00:01:34,173 but we'll see that neural networks, belief networks and everything is sort of coming 17 00:01:34,173 --> 00:01:38,350 together in this fairly interesting development. 18 00:01:38,350 --> 00:01:43,993 However, it turns out that bottom up prediction so far, can go only a certain 19 00:01:43,993 --> 00:01:49,462 way and one needs to combine many different techniques including symbolic 20 00:01:49,462 --> 00:01:53,232 reasoning as well as direct learning from the data. 21 00:01:53,232 --> 00:01:58,554 And we will discuss a very popular and fairly old architecture called the 22 00:01:58,554 --> 00:02:04,319 blackboard architecture which is becoming more and more important, as all these 23 00:02:04,319 --> 00:02:08,680 techniques start working together in large complex systems. 24 00:02:09,680 --> 00:02:15,238 Of course then, we'll finally summarize seeing where we've come in this course 25 00:02:15,238 --> 00:02:20,298 about what we've learned about web intelligence, the brain, and adaptive 26 00:02:20,298 --> 00:02:24,004 business intelligence based on all these techniques. 27 00:02:24,004 --> 00:02:29,491 And lastly, I'll leave you with some challenge problems, which are fairly deep 28 00:02:29,491 --> 00:02:34,480 and might interest some of you to actually take these up for research.