My favorite quotation is:
The mind knows not what the tongue wants.
And a critical important step in understanding our own desires and tastes is to realize that we
cannot always explain what we want, deep down.
At first, people try to find the BEST spaghe
Edge: relationship between these nodes
Node: person or cluster
A net work graph is a collection of things called nodes that are connected by relationships called
2. Different between Directed and undirected
Undirected (symmetry): the r
most sales are equal to zero. (transaction sale)
cosine distance is best for sparse data.
you can understand with: cosine dierence
cosine distance=1-cos similarity
0 same;1 far.
Cosine distance cares a lot abo
1. youll be able to tell the categorial and continuous, what they should be chi-square, one
way ANOVA, or correlation to the relationship between that
- chi-square: 2 categorical variables
- one way ANOVA: one categorical, one continuous
- correlation: bo
average (mean): is the sum of a list of numbers divided by the number of numbers in the
standard deviation: a measure that is used to quantify the amount of variation or
dispersion of a set of data values
conversion market: is the act of con
Broada filed of study that gives the computer the ability to learn without being explicitly
Specificanalgorithm employed to classify data.
(Machine learning explores the study and construction of algori