Tag Archives: data

America’s Changing Population: Diversity Index Shows Growing Trend

In 2012, the US population was 313 million. Growing diversity continues to produce striking changes in the population. To provide an accurate way to track these changes, Esri created a proprietary Diversity Index that measures diversity on a scale from 0 to 100. The Diversity Index is defined as the likelihood that two persons, selected at random from the same area, would belong to a different race or ethnic group. For example, if an area’s entire population belongs to the same race or ethnic group, the Index is zero and the area has no diversity. Conversely, if the population can be evenly divided among two or more race or ethnic groups, the area’s Diversity Index increases to 100. The Diversity Index measures only the degree of diversity in an area, not its racial composition. Esri’s Diversity Index for the US has risen from 60.6 in 2010 to 61.4 in 2012, with a forecast to increase to 63.8 within five years. Continue reading

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What’s the Big Deal about Big Data?

The technology tides have shifted again and, as the notion of cloud computing is becoming mainstream across most industries, a new buzzword is emerging: Big Data.  Never heard of it? Simply put, the term refers to the ever-growing mountain of data, generated from myriad sources, that organizations must effectively address.

Big Data Caricature

Courtesy: Keith Mann, Esri

For instance, according to a recent MeriTalk survey, 96% of Federal IT professionals expect their agency’s stored data to grow in the next two years by an average of 64 percent.

Big Data is often described using the Three “V”s:  Velocity, Volume, and Variety.  By example, let’s take a few of the real world case studies gathered by IBM and provided by Mike Rhodin, Senior Vice President at IBM Software Solutions:

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