Class Notes of DATA 525 (Fall 2024)
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Friday, November 01
-------------------

 0 OR 0 = 0
 1 OR 0 = 1
 0 OR 1 = 1
 1 OR 1 = 1

 0 XOR 0 = 0
 1 XOR 0 = 1
 0 XOR 1 = 1
 1 XOR 1 = 0


Friday, October 18
------------------

C. G = αS + (1 - α)Iv



              0
B.  S = H + [ 0 ] x [1/4 1/4 1/4 1/4]
              0
              1

            (4x1) x (1x4) = (4x4)

             0    0    0   0
             0    0    0   0
    dxw = [  0    0    0   0 ]
            0.25 0.25 0.25 0.25




             0    1    0   0
             0    0    1   0
    S = [  0.5    0    0 0.5 ]
          0.25 0.25 0.25 0.25
   

A.

            0  1  0   0
            0  0  1   0
    H = [ 0.5  0  0 0.5 ]
            0  0  0   0


Monday, October 14
------------------

Age: 50
Salary: 55
Class: G

Age: 30
Salary: 65
Class: G


Monday, October 07
------------------

RE: (a|b)*abb

aabaabb =>

0 > a > 1 > a > 1 > b > 2 > a > 1
   > a > 1 > b > 2 > b > 3 (passed)
   
ababa =>

0 > a > 1 > b > 2 > a > 1 > b > 2 > a > 1 (fail)

Joe Biden
President Biden
US President Biden


Wednesday, Septembe 04
----------------------

Inverted List:

1.html
2.html
3.html
...
500.html

Decision tree: 500, 322, 1, ...
HTML:
INDEX: 1, 44, 100 
JSON:  30, 11, 44
XML: