This document summarizes a research presentation on automatically visualizing grouped networks. The presentation discusses combining Euler diagram and graph drawing methods. Specifically, it aims to improve analysis of grouped network data like Facebook by automatically generating visualizations. The researcher plans to develop a novel layout method and open source software to efficiently draw graphs and Euler diagrams together. This combined approach could have wide applications in social network analysis, communication networks, and medical analysis. An example visualization of Facebook connections is provided to illustrate the expected results.

1. WELCOME ALL
The Faculty of Science and Engineering
Doctoral College Research Student Conference -2013

2. Presentation on
Automatic Visualization of
Grouped Networks
MITHILEYSH SATHIYANARAYANAN
Research Student, School of CEM
University of Brighton

3. CONTENTS
 Aim of the Research
 Introduction
 Euler drawing method
 Graph drawing method
 Combining both Euler and Graph drawing
methods in the research
 Applications
 References

4. Aim of the Research
 The aim of the research is to significantly
improve the analysis of grouped network
data using Euler diagrams with graphs by
automated visualization (Software).
Example: Facebook is a grouped network,
which has millions of users. It can be
analyzed using the automated tool which
will be developed by us.

5. Introduction
 Euler diagrams are an attractive information
visualization tool which represents relationships
between the sets (categories).
Figure: Relationship between the Universities

6. Introduction (Contd.)
 Graphs (often termed as network diagrams)
represents the relationship between the data
items (people).
Figure: Relationship between the lecturers collaborating with the
different University lecturers.

7. Introduction (Contd.)
 Euler diagrams + graphs will represent the
relationship between the sets (categories) and
the data items (people).
Figure: Relationship between the Universities and the lecturers collaborating with the
different University lecturers.

8. Introduction (contd.)
 Two important methods in developing
Euler diagrams and Graphs in
combination are:
1. Euler drawing method
2. Graph drawing method
>> Our goal is to combine both the
methods successfully.

9. Euler Drawing Method
 The circle based drawing method for
producing Euler diagram was recently
devised by Stapleton et al. [1].
 The three different colors are described
as different zones in the abstract
description.
Figure: Euler diagram generated

10. Euler Drawing Method (contd.)
The main objectives of this method are
 To automatically draw an Euler
diagram using only circles to represent
any data set.
 Efficient layout.

11. Graph Drawing Method
 One of the old and traditional graph
drawing method is Force-Directed
Layouts method [2].
 The force-directed algorithm is based
on the physical model of attraction and
repulsion.
Figure: Left handed diagram has edge-crossings in graph and
right handed diagram has avoided edge-crossings in graph.

12. Graph Drawing Method (contd.)
The main objectives of this method are:
 To layout the graph optimally.
 Avoid edge-crossings.

13. Combining both drawing
Methods
 A relatively new method combining
both Euler drawing method and graph
drawing method will be developed
which will have benefits and impacts
of Euler diagrams and graphs.
Figure: Euler diagram and graph in combination

14. Combining both drawing
Methods (contd.)
The main objectives of this method are:
 Develop novel layout method for drawing
graphs and Euler diagrams in
combination.
 Develop proof-of-concept open source
software.
 Efficient layout.
Point1: This method will be open to wide
range of applications and reason other
issues.

15. Applications
 Social Network Analysis
 Communication Network Analysis
 Medical Analysis

16. Expected Result
The below figure is an example of the expected result
(automatic visualization software) showing Euler diagrams and graph in
combination for analyzing Facebook application.
Figure: Example showing how people are connected on facebook.

17. References

18. THANK YOU