Machine Learning
Introduction
=====>!!!Do not use any "magic function" in this class!!!<=====
Interesting Examples
Day and Night
is a television series directed by Wang Wei and written by
Zhiwen. The series tells the story of Guan Hongfeng, the former
captain of the Changfeng Criminal Investigation Detachment, who
solves many cases to get his brother Guan Hongyu exonerated.
Guan Hongfeng, a former police captain suffering from nyctophobia, returns to solving mysteries alongside the hot-tempered Captain Zhou Xun and rookie officer Zhou Shutong. However, he has a hidden agenda, which is to clear his identical twin brother Guan Hongyu's name from the alleged murder of an entire family.
Assume you are Captain Zhou Xun, with a Computer Science Ph.D background. :)
Can you figure out their identities based on the behavior patterns? How?
Guan Hongfeng, a former police captain suffering from nyctophobia, returns to solving mysteries alongside the hot-tempered Captain Zhou Xun and rookie officer Zhou Shutong. However, he has a hidden agenda, which is to clear his identical twin brother Guan Hongyu's name from the alleged murder of an entire family.
Assume you are Captain Zhou Xun, with a Computer Science Ph.D background. :)
Can you figure out their identities based on the behavior patterns? How?
Hint: Psychology Professor style or Math/CS Professor style?
Both!
!!!DISHONEST CASINO!!!
A casino has two dice, casino player switches back and forth between fair and loaded die once in a while.
The dice are unfair!!!!!!!!!!
Fair die
P(1) = P(2) = P(3) = P(4) = P(5) = P(6) = 1/6
Loaded die
P(1) = P(2) = P(3) = P(4) = P(5) = 1/10
P(6) = 1/2
Switching between fair and loaded die
P(trans) = 0.05
A casino has two dice, casino player switches back and forth between fair and loaded die once in a while.
The dice are unfair!!!!!!!!!!
Fair die
P(1) = P(2) = P(3) = P(4) = P(5) = P(6) = 1/6
Loaded die
P(1) = P(2) = P(3) = P(4) = P(5) = 1/10
P(6) = 1/2
Switching between fair and loaded die
P(trans) = 0.05
Consider the above dice model, we have a
series of die rolling outcomes
61226351241253662512
Try your best to guess which outcomes are
generated by the fair die, and which are by the loaded die
Are you sure you can do it? Yes? Then try this one! (1000 outcomes)
You can try to evaluate your guess on Odin by following CMD:
/home/fac/clei/checker/HMM/DiceChecker1000 WhateverYourAns.txt
Sample Answer (F stands for Fair, L stands for Loaded)
Can you make it better than 80%?
Here is the public dataset drawn from the U.S. Army Anthropometric Survey form University of Michigan
We have some data sheets in our office, but they are ruined by rats.
Try to write a program to fix the following broken dataset
I split the data for your convenience
Test your answer (Sample
Answer) by
/home/fac/clei/checker/KNN/armyChecker1 YourAnsForData1.txt
Hint: "I can do it too" or "How can I do it" ?