Transcript presentation

A Design Model using Mutation Shape Emergence
Focusing on mutational emergent shapes
HYUN-AH, CHOI and HAN-JONG, JUN
Hanyang University,
Department of Architectural Engineering
Cyber Architecture Design Lab.
Contents
PART 1: Motivation & Purpose
PART 2: Mutation Shape Emergence
PART 3: Empirical Study
PART 4: Design Process Model
PART 5: Conclusion & Future work
Cyber Architecture Design Lab.
1. Motivation & Purpose
1. Drawings and sketches produced in the design process would stimulate
the transformations of thought to guide the creative thinking
by providing various visual cues.
2. Those features which are not explicitly represented but emerge
through design process are called ‘emergent’.
These emergent features help to create a novel and different design.
3. The ability to recognize properties and characteristics of artefacts
which were not anticipated in the early stage of design would be considered
an important aspect of human visual perception in creative thinking.
4. This study aims at presenting a design model based on the cognitive mechanism
discovering mutational emergent shapes
as an extended theory of shape emergence.
5. Computational model of mutation shape emergence will be developed
based on this design model.
Cyber Architecture Design Lab.
2. Mutational Emergent Shapes
Re-interpretation
Primary
Shapes
New
Shapes
Shape Emergence
Emergence
Emergent shape
Shape Emergence
Unintentional perception of patterns from the representation
Shapes are present but unrecognized or implicit
in the initial drawn shapes
Process of finding other shapes derivable from the initial shape
Cyber Architecture Design Lab.
2. Mutational Emergent Shapes
2-1. Definition
Genetics
Design System
• The Phenomenon of genes changing at random.
• A basic factor of hereditary diversity and evolution.
An action of changing features or attributes of an object
or a concept in an unconventional manner
A mechanism that makes possible the creative thinking
in the diversity of shapes’ discovery
A
B
C
D
E
F
A
B
X
C
D
E
F
Gene
Mutation
Genetics
Gene
New Phenotype
Mutation
Shapes
Mutant
New Shape
Property
Cyber Architecture Design Lab.
2. Mutational Emergent Shapes
2-1. Definition
Homogeneous mutational
Emergent Shapes
Mutation of physical properties occur but the new shape
has homogeneous representation of a primary shape
Heterogeneous mutational
Emergent Shapes
Mutation of physical properties occur but the new shape
has heterogeneous representation from primary shape
Cyber Architecture Design Lab.
2. Mutational Emergent Shapes
2-2. Discovering Mutational Emergent Shapes
Discovering Process of Homogeneous Mutational Emergent Shapes
Discovering Process of Heterogeneous Mutational Emergent Shapes
Cyber Architecture Design Lab.
2. Mutational Emergent Shapes
2-3. Classification of Emergent Shapes and Mutational Emergent shapes
(A) Explicit closed emergent shapes:
shapes are both closed and existed in explicit properties of primary shapes
(B) Implicit closed emergent shapes:
shapes are closed but not necessarily existed in explicit properties of primary shapes.
These shapes can also be defined by extending lines and connecting vertices.
(C) Mutational closed emergent shapes:
shapes are both closed and discovered by mutation of physical properties of primary shapes.
Cyber Architecture Design Lab.
3. Empirical Studies
3-1. Empirical Study 1
Purpose of
experiment
To explore the possibility of discovering mutational emergent
shapes in design process
Participant
7 participants who were graduate students
of Department of Architecture
Primary
Shape
Laboratory
Setting
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3. Empirical Studies
3-1. Empirical Study 1
Procedure of Experiment
Camera 1
Camera 2
Sketches
Explanation
Of
Experiment
Think Aloud
Reports
Retrospective
Reports
Outcomes
Verbal data
10 Minutes
40 Minutes
Cyber Architecture Design Lab.
3. Empirical Studies
3-1. Empirical Study 1
Analyzing the first experimentation – Participant 3
Time
09:30
Think Aloud Reports
Sketch
Hmmm, This is..
09:35
09:40
09:45
09:50
Ah, here comes quarter
circle…
09:55
I think this shape can be
made using by quarter circle..
09:60
…
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3. Empirical Studies
3-1. Empirical Study 1
Analyzing the first experimentation – Participant 5
Time
Think Aloud Reports
03:20
Now how about starting
with the rectangle..
03:25
Now I find four points for
mid points of segments if I
draw a circle
03:30
This new shape and this
rectangle …
03:35
We can make a shape with
circle and rectangle
Sketch
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3. Empirical Studies
3-2. Empirical Study 2
The purpose
of experimentation
Participant
• To determine the degree of difficulty in recognizing
the mutational emergent shapes
• To analyze the cognitive process of mutational emergent shapes
104 participants who are undergraduate or graduate students
of school of Architecture
Degree of
Difficulty Test
Explanation
Of
Experimentation
Sketches
Outcomes
Preliminaries
Questionnaires
Free Sketch
Test
15 Minutes
Cyber Architecture Design Lab.
3. Empirical Studies
3-2. Empirical Study 2
A. Degree of Difficulty Test
Problem
Number
74
10
12
7 1
1
22
2
18
24
30
3
19
4
23
6
17
20
30
15
23
9
35
Normal
4
Difficult
28
20
40
25
60
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Very
20
102
20
2
21
80
Easy
13
100
11
Very Easy
9
6 6 1
21
7
0
26
14
91
5
8
26
10
104 (Person)
Difficult
3. Empirical Studies
3-2. Empirical Study 2
B. Free Sketch Test
Homogeneous
Mutational
Emergent
Shapes
Heterogeneous
Mutational
Emergent
Shapes
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3. Empirical Studies
3-3. Results and Discussion
Empirical study 1
• Participant 3 -> Center point
• Participant 5 -> Contact Point
• Heterogeneous mutational emergent
shape
Empirical study 2
• More difficult than from the explicit closed
• 8.9% of possibility to discover
• Able to distinguish to Homogeneous
and Heterogeneous Mutational Emergent
Shape
• Although mutational emergent shapes are not easy to discover as seen in the test on the
degree of difficulty, participants could analogize such shape by means of sketching.
• Mutational emergent shapes are discovered resulting from mutation of the new properties
stemming from the primary shape.
• Participants came up with new shapes by using implicit and/or explicit properties of
primary shapes such as mid points, contact points, angle points and n-section points.
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4. Process Model
A process model of mutational emergent shape
Primary Shapes
Unstructured
properties
Emergent
properties
Mutational
Emergent shapes
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4. Process Model
Primary shapes
The process of breaking down primary shape to individual
properties based on intended representation
De-structuring
Unstructured
properties
Re-structuring
Mutation of
properties
Emergent
properties
The process where new properties are discovered
through multiple representation
Re-interpretation
Mutational
emergent
shapes
< De-structuring
< Re-structuring
of of
primary
primary
shape
shape
> >
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5. Conclusions and Future Work
1. Mutational emergent shapes are defined as extended theory
of shape emergence.
2. Through the two empirical studies, we found out the facts that
mutational emergent shape is discovered and adapted for
the development of sketches in design.
Additionally, its cognitive mechanism was analysed.
3. On the basis of cognitive mechanism,
a process model of mutation shape emergence was suggested.
• Further research work is necessary to explore the design process
at the practical level with the use of mutational emergent shapes.
• Concrete steps of representation of mutational emergent shapes
should be suggested for computation of mutation shape emergence.
Cyber Architecture Design Lab.