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Questions by john ganales
0
votes
1
answer
What are the physical components of Oracle Database?
asked
Mar 23, 2023
in
Oracle
oracle
database
0
votes
1
answer
What are the various databases available in the market?
asked
Mar 23, 2023
in
Oracle
databases
oracle
0
votes
1
answer
Who is responsible to update the indexes?
asked
Mar 23, 2023
in
Oracle
indexes
oracle
0
votes
1
answer
Why is the index used?
asked
Mar 23, 2023
in
Oracle
index
oracle
0
votes
1
answer
What is an Oracle index?
asked
Mar 23, 2023
in
Oracle
oracle
index
0
votes
1
answer
What is an Oracle Database?
asked
Mar 23, 2023
in
Oracle
oracle
database
0
votes
1
answer
What is Oracle?
asked
Mar 23, 2023
in
Oracle
oracle
0
votes
1
answer
Mention Oracle DBA Characteristics.
asked
Mar 23, 2023
in
Oracle
oracle
dba
characteristics
0
votes
1
answer
Which of the following method is used for finding the optimal of a cluster in the K-Mean algorithm?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
k-mean
algorithm
0
votes
1
answer
Feature scaling is an important step before applying the K-Mean algorithm. What is the reason behind this?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
feature
scaling
clusteing
0
votes
1
answer
If two variables, V1 and V2, are used for clustering. Which of the following are true for K means clustering with k =3?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clustering
k-mean-clustering
0
votes
1
answer
Assume you want to cluster 7 observations into 3 clusters using the K-Means clustering algorithm. After first iteration, clusters C1, C2, C3 have following observations:
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
iteration
clusters
k-means
clustering
0
votes
1
answer
Assume you want to cluster 7 observations into 3 clusters using the K-Means clustering algorithm. After the first iteration, clusters C1, C2, C3 have following observations:
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clusteing
0
votes
1
answer
The K-Means algorithm has some limitations. For example, it makes hard assignments (A point either completely belongs to a cluster or not belongs at all) of points to clusters.
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clusterk-means
algorithm
0
votes
1
answer
Which of the following is/are valid iterative strategies for treating missing values before clustering analysis?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
iterative
strategies
clusters
0
votes
1
answer
What should be the best choice of no. of clusters based on the following results?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clusters
0
votes
1
answer
Which of the following clustering representations and dendrogram depicts the use of Ward’s method proximity function in hierarchical clustering?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clustering
dendrogram
0
votes
1
answer
Which of the following clustering representations and dendrogram depicts the use of the group average proximity function in hierarchical clustering?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clustering
dendrogram
0
votes
1
answer
Which of the following clustering representations and dendrogram depicts the use of MAX or complete link proximity function in hierarchical clustering?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clustering
representations
0
votes
1
answer
Which of the following clustering representations and dendrogram depicts the use of MIN or single link proximity function in hierarchical clustering?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
clustering
representations
dendrogram
proximity
function
0
votes
1
answer
Which of the following is/are true?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
multicollinearity
features
clustering
0
votes
1
answer
Which of the following metrics do we have for finding dissimilarity between two clusters in hierarchical clustering?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
metrics
hierarchical
clustering
0
votes
1
answer
In which of the following cases will K-Means clustering fail to give good results?
asked
Mar 20, 2023
in
Clustering - The Data Ensemble
k-means
clustering
0
votes
1
answer
Top Rated 50 Data Science Questions and Answers
asked
Feb 8, 2023
in
Data Science
data-science
questions-answers
0
votes
2
answers
What is gradient descent?
asked
Feb 8, 2023
in
Data Science
gradient-descent
+1
vote
1
answer
What is Naive Bayes?
asked
Feb 8, 2023
in
Data Science
naive-bayes
0
votes
1
answer
What is a support vector machine (SVM)?
asked
Feb 8, 2023
in
Data Science
support-vector-machine
svm
0
votes
1
answer
What is a decision tree?
asked
Feb 8, 2023
in
Data Science
decision-tree
0
votes
1
answer
What is regression analysis?
asked
Feb 8, 2023
in
Data Science
regression-aalysis
+1
vote
1
answer
What is hypothesis testing?
asked
Feb 8, 2023
in
Data Science
hypothesis
testing
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