Cluster analysis project, Database Management System

Assignment Help:

(a) Data Mining Process: In the context of this cluster analysis project, and in your own words, explain how you would execute the first stage of data mining, namely the "Pre-modelling" stage. Be sure to differentiate the sub-tasks in this stage

(b) Pre-modelling: Describe the potential business problem and data mining problem in the context of this project. Be sure to differentiate these two problems in your description.

(c) Data Preparation: Use the "seeds_dataset_twoClass.csv" file to prepare the dataset for cluster analysis. You can use the following table format to justify the data type (i.e., measurement) and direction (i.e., role) used for each attribute.

 

Attribute

Data Type

(or Measurement)

Direction (or Role)

(Input, Target or None)

Justification

(d) Data Exploration: Analyse the dataset "seeds_dataset_twoClass.csv" using the following summary statistics in the Data Audit node. Discuss the use of these summary statistics for deciding if further data preparation is required.

a. Mean and Standard Deviation (Std. Dev), Min and Max

b. % Complete and Valid Records

c. Outliers and Extremes

 (e) Data Preparation: From the scenario and data given, explain why the attribute A3 (compactness) is probably not useful for cluster analysis. Prepare the data (for mining) by filtering out this field using IBM SPSS Modeller.

(f) Executing Clustering Technique: Decide on the number of clusters (i.e., K) and then execute K-Means on the filtered dataset. Assess the appropriateness of applying K-Means on this dataset. Interpret the clustering results.

(g) Interpreting Clustering Results: Use the Graphboard node to generate a scatter plot based on attributes A4 and A5. The plot should show each data point labelled or coloured based on the cluster number assigned by K-Means. Evaluate the clustering results using this plot (and you may also use the project information given in the Background section of this assignment).

(h) Data Preparation: Having read your preliminary analysis, a colleague gave the following comment: "the dataset should have been normalised before the clustering process." Evaluate the clustering solutions with and without normalisation and then discuss whether normalisation is necessary in this case.


Related Discussions:- Cluster analysis project

Log, what is the need of a log in dbms

what is the need of a log in dbms

ER diegrams, How to draw an ER diagram to a finance companz

How to draw an ER diagram to a finance companz

Generalization and specialization, design a generalization specialization h...

design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.

Create a table student with attributes student name, Question 1 Create a t...

Question 1 Create a table student with attributes student name, roll number, total marks and percentage. Do the following operations Insert details in to the table Update

Describe the four main ways of optimising disk block access, Describe the f...

Describe the four main ways of optimising disk block access. Ans: a. Disk  b. Non-volatile writes buffers c. File organization (Clustering) d. Log-based file system

Query optimization, what is meant semantic query optimization? how does it ...

what is meant semantic query optimization? how does it differ from other query optimization techniques?

Determine the types of methods for retrieving rows in python, Describe the ...

Describe the two types of methods for retrieving rows in Python? Fetchone()- Returns the next row as a sequence Fetch all()- Returns the entire result set like a strin

ER diagram, #question. acompani datdbase needs to store information about e...

#question. acompani datdbase needs to store information about employees (identified by a social security number,with salary and phone as attributes) and departments (identified by

What is transaction, What is transaction? Transaction is a unit of prog...

What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.

Explain the need of parallel database, Probelm: a) In the context of OO...

Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd