Question
Which of the following techniques is used for
dimensionality reduction while preserving the data's variance?Solution
Principal component analysis, or PCA, is a dimensionality reduction method that is often used to reduce the dimensionality of large data sets, by transforming a large set of variables into a smaller one that still contains most of the information in the large set.
Given below is a equation followed by two. Statements numbered (I) and (II), each containing some information. Decide which of the statements), is/are s...
How is P related to B?
I. Z is father of A and brother of B
II. P is daughter of D, who is mother of A
F is in which direction with respect to E?
I. B is to the east of C, who is to the south of D. E is to the southwest of D and F is to the east of...
Who is the youngest among A, B and C?
Statement I: A is older to B
Statement II: B is younger to C
There are six members A, B, C, D, E, F in the family of three generations. There are couples in each generation of the family. How is A related to E?
Five persons T, U, V, W and X sit in a row facing north direction. Who among the following sits at extreme right end?
Statement I: T sits second ...
In a certain code language which of the following is the code for “trunk”?
Statements:
I. “trunk call given” is coded as “ck g...
Which direction Rita is facing after reaching her destination?
Statement I: Rita started walking from point P towards North.
Statement I...
Z is in which direction with respect to R?
I. Q is 4 km towards north of R. S is 8 km towards west of Q. Z is 4 km towards north of Q.
Eight person namely – E, F, G, H, I, J, K and L are sitting in a circular table facing centre not necessary in same order. Who sits immediate left of...