Abstract. Since the advent
of movable type, text has been the predominant mode of non-verbal
communication. Today, a deluge of data and demand for business intelligence
are overwhelming traditional textual, tabular, and simple charting
forms of analysis and presentation. Visualization tools are now
available to substantially improve human analytical capabilities.
However, the rate at which these tools are being inserted into the
business sector has not kept pace with their adoption by the scientific
and engineering communities. Indeed business people may be less
inclined towards visual analysis than the scientists (and artists)
who are driving these technologies. Visualization is an important
mode of learning and thinking and businesses which master it will
have an advantage in perceiving changing patterns and new phenomena
in the global economy.
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Introduction.
To many lay people an economist is someone who provides interest
rate forecasts of slightly greater validity and less utility than
the forecasts found on the weather channel. However, at its heart—and,
yes economists do come equipped with them—economics is a disciplined
way of determining how limited resources, including time, people,
and information, can be used most productively. Since productivity
growth and technology are economic soulmates, a business economist
may be able to shed some light on visual analytics use, or lack
thereof, in economics and the related fields of business and finance.
In these fields, economic analysis is both as compatible with and
underutilized as visual analytics. It may be a cliché to say that
a picture is worth a thousand words, but to an economist that represents
an excellent exchange rate and one that is bound to appreciate given
the explosion in productivity enhancing visualization tools. Let's
take a quick look back in time to put contemporary visualization
tools in context to try to understand why there might be some resistance
to their adoption.
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Adam Smith |
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Moral Philosopher and Political
Economist 1723-1790 |
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The last 10,000 years. Spoken
language probably pre-dated visual language or pictures but, barring
a few noteworthy epics such as the Iliad, early oral language
did not generate a record. On the other hand cave
paintings such as the 30,000 year
old bulls of
Lascaux, left future millennia a visual record of the denizens
of the pre-historic world before written records were an option. Ever
interested in options, economists, or at least their evolutionary
precursor, the accountants, appear to have played a role in transforming
recordkeeping from a visual to a textual basis.
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According to
Denise Schmandt-Besserat's research in Iraq, several thousand
years before the development of writing three dimensional
tokens were used as devices for counting property and resources
. For example, a tetrahedron stood for a unit of labor, a cylinder
stood for a head of livestock. The token system allowed data to
be collected, manipulated, stored and retrieved. With Sarbanes-Oxley
only a few millennia away, accountants recognized the need to drill
down into increasing levels of categorization denoting qualitative
attributes of their assets as well as the quantity. They devised
tokens which distinguished, not just an hour of labor from a head
of livestock, but a large male ox from a small, young ewe.
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As records took up more and more
space, the bulky three dimensional tokens were used to make impressions
on tablets, thereby producing a more efficient "3-D slim"
version of the inventory list. These impressions may have been the
immediate precursors to
cuneiform script, the oldest known system of writing invented
in the fourth millennium B.C., and the initial push away from the
visual and towards a text based information storage systems. |
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ca. 2400 B.C.E. from the Library
of Congress collection of clay tablets acquired as part of the
Kirkor Minassian collection in the late 1920s and the 1930s.
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While two dimensional manuscripts
represented a technological advance, their use as a general method
of communication was hampered until the invention of the printing
press reduced production costs and more broadly based educations
systems increased literacy. Knowledge grew, but was still communicated
to a mostly illiterate populace either orally or visually. Hand
copied books, richly illustrated maps
and cathedral windows stored information
about what was then known of the world. Most people could not read
the inscriptions, but they could understand the contextual presentation
of stellar constellations and earthly seasons the order of the heavens
and earth as depicted in a magnificent Gothic Rose window. The more
learned clerics used these much like PowerPoint slides to instruct
their flock. .
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The advent of movable
type was to change all that. Certainly it was marginally easier
to carry around a Gutenberg Bible than a stained glass window depicting
the same stories. For the next few centuries the economics were
black and white favoring mass produced texts over unique visual
masterpieces for purposes of communication. While a picture was
still worth a thousand words, a thousand words were now cheaper
to produce. However, linear text as a store of knowledge lacks the
contextual information of a richly designed visual which could bring
order to the heavens in the artistic splendor of stained glass.
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The Present. Today we are
witnessing a paradigm shift: individual bits of information -- not
only text, but numbers, images and other data forms as well -- are
cheap, but their volume makes them expensive to process in traditional
ways. As the cost declines, computer storage capacity rises outstripping
the growth in human analytical capacity and resulting in a bottleneck.
Six thousand years ago clay tokens were cheap individually but expensive
to process in the aggregate and text was invented, eventually displacing
more visual forms of communication. Paradoxically, today's visual
tools can substantially enhance our capacity to analyze text and
other data streams. The last decade has seen rapid advances in visualization
tools which have contributed greatly to the analytical capabilities
for scientific research and national security assessment. Given
increased global competition and the need for rapid assessment of
market changes and economic trends, why hasn't the business sector
made greater use of these same tools?
Note: Much as visual art ranges from the realism of a Steichen
photograph to the abstraction of a Kandinsky painting, symbolic
representations range from the image based picture to the abstract
diagram with many possibilities in between. A rose window lies somewhere
along on this spectrum with the individual symbolic images of a
dove or a deity arranged in a pattern providing a coherent context.
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BLOOMBERG DISPLAY TERMINAL
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The visual analytics community
has developed an amazing array of tools over the last few years
spurred on by national intelligence requirements to analyze a deluge
of information on security threats. Many of these tools can be used
to create business intelligence out of seemingly chaotic streams
of information gathered from a global marketplace and communications
network. While the seeds of visual analytics have borne fruit in
some areas of business, they seem to have fallen on fallow or at
least insufficiently fertile ground in others. Like the wok, these
tools need to be presented in a way that appeals to the sensibilities
of the prospective user. Links are important in forging lasting
relationships. Preparing Risotto alla Genovese in a wok
may be the first step in introducing the joys of Cantonese cooking
to Italy in the same way that replicating an accountant's spreadsheets,
warts and all, in a sophisticated application, may allow the more
procedural oriented person to feel more at home in a less familiar
technological environment. The problems may be more fundamental
than those usually addressed by Human-Computer Interaction studies.
Visual analytics by its nature is, well, visual. And, since our
education system by and large does not reward visual thinking, the
people who might gravitate towards visual tools may be underrepresented
in decision making and analytical positions in the business community.
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The New
York Times dubbed Edward Tufte "The Leonardo da Vinci
of data.
In and earlier work, Tufte defined Data-ink as "the
non-erasable core of a graphic and the data-ink ratio as the
"proportion of a graphic's ink devoted to the non-redundant
display of data-information." p. 93, The Visual Display
of Information, Edward R. Tufte, Graphics Press, Cheshire,
CT, 1983.
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Use.
Standalone charts versus visual context
Why is it important to “think in databases”?
Examples of effective use
Satellite views provide information allowing topography to be displayed.
Global and Spherical
Volume and Mass
Drilling Down
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GeoFRED is
a web application that allows users to create thematic maps
of US economic data. The St. Louis Federal Reserve Bank
maintains a publicly available free economic database which
includes graphic and mapping of data series.
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Visual Evolution of the World Bank Atlas
1969 |
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2002 |
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The World Bank began
publishing its Atlas of Socioeconomic statistics in the late
Sixties. As a college intern under the direction and patient
tutelage of Statistician Joseph E. Gholl, I was assigned to
hand draw many of the maps for the 1969 edition on graph paper.
The process of converting each million dollar unit of GNP into
a box on graph paper while trying to maintain some general reference
to the physical shape of the country was tedious but illuminating,
giving me added appreciation for the functionality and productivity
of visualization technology today. |
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The World Bank Atlas
later switched from sizing to coloring countries according to
the various measures which removed some of the analytical content
of the earlier version, assumed users were not color blind,
and required them to perform the extra step of mapping the colors
to levels of the indicator being displayed. |
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2007 |
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The
2007 version was an improvement in that the levels were
mapped to more recognizable gradients of color. |
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GAPMINDER
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GAPMINDER
Gapminder is a non-profit venture promoting sustainable global
development and achievement of the United Nations Millennium
Development Goals by increased use and understanding of statistics
and other information about social, economic and environmental
development at local, national and global levels. |
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Benefits to Business
"If we combine new capabilities in information
and communications with sensors and satellites, and improved visualization
and simulation tools, databases and networks, we will leave our
familiar landscapes in the dust." [Bement
2006]
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