Majmaah University
College of Science in Zolfi
Dept. of Computer Science &Info.
‫تجسير علوم حاسب‬
First Home Work on Data Mining
Name :
Time: 1 Hr
28-12-1436
ID:
1- Why Data mining (Scientific view)?
2- Data mining may help scientists in:
ab-
...................... is an essential process where intelligent methods are applied to extract data
patterns that is also referred to Knowledge discovery in database .
a) Data warehousing b) Data mining
C) Text mining
d) Data selection
1.
2.
3.
a)
b)
c)
d)
4.
a)
b)
c)
d)
Two fundamental goals of Data Mining are _______ and _________.
a)
Analysis and Description
a)
Data cleaning and organizing the data
b)
Prediction and Description
c)
Data cleaning and organizing the data
............................. is the process of finding a model that describes and distinguishes data
classes or concepts.
Data Characterization
Data Classification
Data clustering
Data selection
Cluster is-------------------------------------------------------------------------Group of similar objects that differ significantly from other objects
Operations on a database to transform or simplify data in order to prepare it for a machinelearning algorithm
Symbolic representation of facts or ideas from which information can potentially be
extracted
None of these
1
5.
6.
a)
b)
c)
d)
In the clustering algorithm the distance between cluster centroid to each object is
calculated using _______________ method.
e) Euclidean distance
b) Clustering distance
c)Central distance
d)
Cluster
Classification task referred to --------------A subdivision of a set of examples into a number of classes
A measure of the accuracy, of the classification of a concept that is given by a certain theory
The task of assigning a classification to a set of examples
None of these
3a)
b)
c)
d)
What is Data Mining and not Data Mining?
Look up phone number in phone directory (
)
Query a Web search engine for information about “Amazon (
)
Certain names are more prevalent in certain US locations(
)
Group together similar documents returned by search engine according to their context (
)
4- Draws ideas from Machine learning/AI, Pattern recognition, Statistics, and Data mining ?
5- What are Data Mining Tasks?
12345-
6-
Define Data Classification ?
2
Test
Set
7- This figure is model of ----------------------------------
Training
Set
–
Learn
Classifier
Model
This Application on ( - the image (star or galaxy ---)
 Segment----------------------------------------------------------------- Measure -------------------------------------------------------------------.
 Model the ---------------------------------------------------------------- Success Story--------------------------------------------------------------!
8- Define Data Clustering ?
9- What are Similarity Measures of Clustering?
10- What are Challenges of Data Mining ?
3