Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
Vice rectorate for Academic Affairs
Measurement & Assessments Administration
The final examination for the second semester 1434 / 1435 H
College:…Science in az Zulfi………
Program: CSI Dept.
Course Name: Data Mining
Course Code: CSI 449-Z
Section: 273
Date: 20-7-1435
Duration: two hours
Number of pages: 5
The student's name:
University ID:
Examination Guidelines
1- Type your name and university identification number clearly in the space provided.
2- Use blue or black pen in answer and pencil in drawing.
3- Books or notes, papers and pu`blications are not allowed into the examination room.
4- Students are not allowed to get out from the examination room before passing 30
minutes from the beginning of test starting.
Learning Outcomes
The Knowledge
Skills
Interpersonal skills
Cognitive skills
and taking
responsibility
a
b
Communication,
information
technology and
numerical skills
Psychomotor
skills
d
e
c
Grades
Faculty member
Corrector 1
Dr. Weal Khedr.
/…………….
Review Committee
/…………….
Name
Signature
/…………….
/…………….
/…………….
Final grade...…../….......
Form (2)
/…………….
Learning
outcome
Question
/…………….
………a………..
1
/…………….
………a, b……..
2
/…………….
……b, c………..
3
/…………….
………c, d……..
4
/…………….
………………..
5
Corrector 2
/…………….
Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
Vice rectorate for Academic Affairs
Measurement & Assessments Administration
Question(1): Choose the right answer of the followings?
1) The values of ----------- attribute are just different names and provide only enough
information to distinguish one object from another.
a. Ratio
b. Interval
c. Ordinal
d. Nominal
2) The values of a/an ------------ attribute provide enough information to order objects.
a. Ratio
b. Interval
c. Ordinal
d. Nominal
3) For ------------ attributes, the differences between values are meaningful, i.e., a unit
of measurement exists.
a. Ratio b. Interval c. Ordinal
d. Nominal
4) It is a type of data sets that is based on a sequence or a transactions of data
a.
Record
b. Graph
c. Ordered d. Data Matrix
5) Reduce amount of time and memory required by data mining algorithms
a. Data Reduction b. Data Mining c. Data aggregation d. Data matrix
6) It is the main technique employed for data selection.
a. Noise
b. Sampling
c. Clustering
d. Histogram
7) Combining two or more attributes (or objects) into a single attribute (or object)
a. Noise
b. Sampling
c. Aggregation
d. Histogram
8) It can be mapping Data to a New Space( Frequency Domain) .
a. Aggregation
b. Data Reduction c. Fourier transform
d. Sampling
9) It refers to modification of original values.
a. Aggregation
10)
b. Data selection
c. Noise
d. Clustering
Classify of records can be done by using a collection of -----------based classifier.
a. Rules
b. Clusters
c. Decision tree
d. Measure of Impurity
Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
Vice rectorate for Academic Affairs
Measurement & Assessments Administration
Question (2) Complete the followings?
(A) Define Data Mining ?
(B) What are Data Mining Tasks
(C) Define Data Classification ?
(D) Complete the following figure of a Classification model?
----------------
------------------
-------------------
(E) What are Similarity Measures of Clustering ?
(F) What are Challenges of Data Mining
-----------
Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
Vice rectorate for Academic Affairs
Measurement & Assessments Administration
Question (3) :
1- Draw the Decision tree to classify records based on class attribute (class)?
2- Find the class of tested set?
3- Calculate the Measure of Impurity by using GINI of Refund node?
Answer
Tid Refund Marital
Status
Taxable
Income Class
1
Yes
Single
125K
No
2
No
Married
100K
No
3
No
Single
70K
No
4
Yes
Married
120K
No
5
No
Divorced 95K
Yes
6
No
Married
No
7
Yes
Divorced 220K
8
No
Single
85K
Yes
9
No
Married
75K
No
10
No
Single
90K
Yes
60K
No
10
Tested set:
1
2
3
NO
Single
Yes Married
No
Single
90
72
95
?
?
?
Kingdom of Saudi Arabia
Ministry of Higher Education
Majmaah University
Vice rectorate for Academic Affairs
Measurement & Assessments Administration
Question (4) :
A) How to determine/find the Best Split in Tree Induction classification
technique ?
B) What are Measure of Impurity of split?
C) Construct a Rules-based Classifier of Question3?