Q.1
14 Marks(a)
Difference between association and classification.
(b)
Difference between Star Schema and Snowflake schema
(c)
Explain KDD process in detail.
Gujarat Technological UniversitySummer 2025 examination
GTU 2170715 Data Mining and Business Intelligence (DMBI) Summer 2025 Question Paper & PDF
B.E. · Computer Engineering · Semester 7 · Subject code 2170715
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Differentiate between data warehouse and data mart.
(b)
Explain Different normalization methods.
(c)
What is data cleaning? Explain steps for handling the missing values in database.
OR
(c)
Generate strong association rules for given dataset. (Min_supp = 60% and Min_conf = 80%) TID Item_bought 1 {M,O,N,K,E,Y} 2 {D,O,N,K,E,Y} 3 {M,A,K,E} 4 {M,U,C,K,Y} 5 {C,O,O,K,I,E}
Q.3
14 Marks(a)
Explain ROLAP and MOLAP.
(b)
Discuss OLAP and OLTP.
(c)
Explain activities of data transformation.
OR
(a)
Explain Support and Confidence measures by taking appropriate example.
(b)
What is classification? Discuss phases of classification.
(c)
Mean, median, mode and variance and standard deviation explain with suitable example
Q.4
14 Marks(a)
Give a list of data transformation strategies and explain any one in brief.
(b)
Define True Positive, True Negative, False Positive and False Negative.
(c)
Explain Back propagation neural network in detail
OR
(a)
Differentiate prediction and classification.
(b)
What is classification? Explain classification process.
(c)
Explain decision tree algorithm with suitable example.
Q.5
14 Marks(a)
Explain role of business intelligence in market segmentation.
(b)
What is business intelligence? Give its advantages.
(c)
What is distributed file system? Explain HDFS architecture in detail.
OR
(a)
What is Big Data?
(b)
Difference between Data Mining and Text Mining
(c)
Write a short note on Hadoop MapReduce .
More Data Mining and Business Intelligence papers
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
Other Semester 7 subjects
BE Computer
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About this paper
Official Gujarat Technological University (GTU) examination paper for Data Mining and Business Intelligence (DMBI) (Summer 2025, B.E. · Computer Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.