Question

Discuss the differences between dimensionality reduction based on aggregation and dimensionality reduction based on techniques such as PCA and SVD.

Answer 1

Answer:

Following are the difference to this question can be defined as follows:

Explanation:

• In terms of projections of information into a reduced dimension group, we can consider the dimension structure of PCA and SVD technologies.  
• In cases of a change in the length, based on consolidation, there's also a unit with dimensions.
• When we consider that the days have been aggregated by days or the trade of a commodity can be aggregated to both the area of the dimension, accumulation can be seen with a variance of dimension.