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Hierarchical clustering is slower than non-hierarchical clustering?
On 21st January 2021, NASA shared photos of the huge galaxy cluster. Which of the following statement is/are INCORRECT in the statements? 1. The cluster is older and slower galaxy cluster merger than the Bullet Cluster 2. Name of the cluster is Abell 370 and was first discovered in 2002 using the lensing effect 3. Cluster is located 4.9 billion light-years away from the Earth in the constellation Cetus Select the correct answer using the code given below. (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Both 2 and 3
The following situations involve a cluster of three or more geometrical figures. Having one or more dots placed at nay point inside the cluster. This cluster is followed by a set of four altenative figures each composed of a cluster of the same type of figures. Now. For each dot we have to observe the region in which it is enclosed i.e in Which of the geometrical figure this region is common. From amongst the figures, select the figure which satisfies the same conditions of placement of the dot as in fig. (x)
The following situations involve a cluster of three or more geometrical figures. Having one or more dots placed at nay point inside the cluster. This cluster is followed by a set of four altenative figures each composed of a cluster of the same type of figures. Now. For each dot we have to observe the region in which it is enclosed i.e in Which of the geometrical figure this region is common. From amongst the figures marked (a), (b), (c) and (d) select the figure which satisfies the same conditions of placement of the dot as in fig. (x)
The following situations involve a cluster of three or more geometrical figures. Having one or more dots placed at any point inside the cluster. This cluster is followed by a set of four altenative figures each composed of a cluster of the same type of figures. Now. For each dot we have to observe the region in which it is enclosed i.e in Which of the geometrical figure this region is common. From amongst the figures, select the figure which satisfies the same conditions of placement of the dot as in fig. (x)
Select the letter-cluster that is related to the third letter-cluster in the same way that the second letter-cluster is related to the first letter-cluster. BMPR : DKRP ∷ JLQV : ?
What does K refers in the K-Means algorithm which is a non-hierarchical clustering approach?
To control the size of the tree, we need to control the number of regions. One approach to do this would be to split tree nodes only if the resultant decrease in the sum of squares error exceeds some threshold. For the described method, which among the following are true?
a. It would, in general, help restrict the size of the trees
b. It has the potential to affect the performance of the resultant regression/classification model
c. It is computationally infeasible
Which of the following statements are true with regards to the selection of a sample size? (i) The sample size (n) may be a fixed percentage of lot size (N). (ii) The sample size (n) may be kept constant irrespective of lot size (N). (iii) Sample size (n) can be selected at the personal whim of the inspector.
This clustering algorithm initially assumes that each data instance represents a single cluster.