#
Analysis of Many vs Many

Multi-Regression Analysis
is the method for one Y and many X.
There are methods for many Y and many X.

The goal of this analysis is to understand the relationship in the simple way.

##
Classification by the Type of Matrix

I classify the approaches of many vs many analyasis by the type of matrix.
There are three types, A-B type, A-A Typeand
AB-C type.

A-B type can be changed into A-A type.
AB-C type can be changed into A-B type.
This change is one of the hint of
Non-Developed Wide Area of Data Science
.

##
Graph of A-A

In the study of
network
, A-A type is often used.
View of Network
is used.

Multi Dimensional Scaling
is used if relationship is the number of distance.

##
AHP

AHP
uses the group of matrix.
The main part of AHP uses A-B type data.
Bu sub part uses A-A type data.

##
Many Applications of A-B

Statistics
uses A-B type as "A is the variable. B is the sample."
Many methods of
Multi-Variable Analysis
and
Data Mining
start A-B type data.

In
Text Mining
, A is the word.
And B is the text.
And
Co-occurrence
is studied by A-B type data.

Q-Analysis
is also used for A-B type.

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