A parting of n is a list P=(a1,a2,a3,....) such that a1<=a2<=a3.... and n=a1+a2+a3+... For example for n=5 the partings are: (1,1,1,1,1), (1,1,1,2),(1,1,3),(1,2,2),(1,4),(2,3),(5) Define X(P) as the number of 1s in a parting and Y(P) as the number of different numbers, for example X(1,1,1,2)=3 and Y(1,1,1,2)=2. For a certain n, show that the sum of all X(P) is equal to the sum of all Y(P), for example for n=5 both are equal to 12
Business case
Why do you think your background is a good fit for IBM
Q. What is the matrix used to evaluate the predictive model?
Match users using different devices to browse items, the devices are phones or laptops.
detailed parameters about ML algorithm
Fix a piece of sh*t code that just request data and save it to MySql. Super easy and easy to fix so I don't know what is the point of the interview. Totally a sh*t experience.
In my opinion the most challenge question is to ask you to determine whether the difference of mean values of two columns is significant or not?
How to build up a model to predict credit card fraud?
What was your prior responsibility
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