This is our presentation about Data visualisation and the
script for it
presentation script
Overview - me
• Data
visualisation is viewed as the modern equivalent of visual communication. It
involves the creation and study of the visual representation of data. This
means that , meaning information that has been abstracted in some schematic
form
• The
primary goal of data visualisation is to communicate information clearly and
efficiently to users with the use of statistical and information graphics,
tables, and charts selected. Effective visualisation helps users in analysing
and reasoning about data and evidence. It makes complex data more accessible,
understandable and usable.
• Data
visualization is both an art and a science. The rate at which data is generated
has increased, driven by an increasingly information-based economy.
• According
to Friedman (2008) the "main goal of data visualization is to communicate
information clearly and effectively through graphical means. It doesn't mean
that it needs to look boring to be functional or aesthetically sophisticated.
To convey ideas both aesthetic form and functionality need to go hand in hand. Designers
often fail to achieve a balance between form and function, creating gorgeous
data visualizations which fail to serve their main purpose — to communicate
information".
• Viegas
and Martin M. Wattenberg have suggested that an ideal visualisation should not
only communicate clearly, but stimulate viewer engagement and attention
Brief history- simona
• data
visualisation dates back to the beginning in the 2nd century with data
arrangement into columns and rows and evolving to the initial quantitative
representations in the 17th century. According to the Interaction Design
Foundation, philosopher and mathematician René Descartes laid the ground work
for William Playfair. Descartes developed a two-dimensional coordinate system
for displaying values, which in the late 18th century Playfair saw potential
for graphical communication of quantitative data.
• In
the second half of the 20th century, Jacques Bertin used quantitative graphs to
represent information "intuitively, clearly, accurately, and
efficiently". John Tukey and more notably Edward Tufte pushed the bounds
of data visualization. Tukey with his new statistical approach: exploratory
data analysis and Tufte with his book "The Visual Display of Quantitative
Information”.
• With
the progression of technology came the progression of data visualisation; starting
with hand drawn visualisations and evolving into more technical applications –
including interactive designs leading to software visualisation. Programs like
SAS and Minitab allow for data visualization in the field of statistics. Other
data visualization applications, more focused and unique to individuals,
programming languages such as D3, Python and JavaScript help to make the
visualization of quantitative data possible.
Iso type – me
• Isotype
(International System of TYpographic Picture Education) is a method of showing
social, technological, biological and historical connections in pictorial form.
• It
was first known as the Vienna Method of Pictorial Statistics due to it having
been developed at the Social and economic museum of Vienna between 1925 and
1934.
• The
term Isotype was applied to the method around 1935, after its key practitioners
were forced to leave Vienna by the rise of Austrian fascism.
Examples Slide
Edward tufte - simona
• He
is an American statistician and professor at Yale University. He is noted for
his writings on information design and as a pioneer in the field of data
visualisation.
• He
is an expert in the presentation of informational graphics such as charts and
diagrams
• He
coined the term chartjunk which is a word used to refer to useless non-informative,
or information-obscuring elements of quantitative information displays.
• Although
Tufte is said to have invented Sparklines, in actuality he invented only the
name and popularized it as technique. Sparklines is a small line chart which is
typically drawn without axes or coordinates. It is a condensed way to present
trends and variation, associated with a measurement such as average temperature
or stock market activity, often embedded directly in the text. Their intention
is to be succinct and memorable
criticising powerpoint - me
• Tufte
has criticized the way Microsoft PowerPoint is typically used. In his essay
"The Cognitive Style of PowerPoint," Tufte criticizes multiple
aspects of the software including:
• Its
use to guide and reassure a presenter, rather than to enlighten the audience;
• Its
unhelpfully simplistic tables and charts, resulting from the low resolution of
early computer displays;
• Poor
typography and chart layout, from presenters who are poor designers or who use
poorly designed templates and default settings
• Instead,
Tufte argues that the most effective way of presenting information in a
technical setting, such as an academic seminar or a meeting of industry
experts, is by distributing a brief written report that can be read by all
participants in the first 5 to 10 minutes of the meeting. Tufte believes that
this is the most efficient method of transferring knowledge from the presenter
to the audience and then the rest of the meeting is devoted to discussion and
debate.
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