Posts by richardh

Human Judgment versus Machine Learning

Human Judgment versus Machine Learning

This last week a nine-week online course entitled “Learning From Data”started, taught by by Caltech Professor Yaser Abu-Mostafa. As they promoted… “A real Caltech course, not a watered-down version, broadcast live from the lecture hall at Caltech.” The course objective is “machine learning that covers the basic theory, algorithms, and applications, that enables...

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Beginning of Interactive Data Visualization

Beginning of Interactive Data Visualization

I was poking around in Nathan Yau’s FlowingData blogs and found a historical gem. On January 1, 2008, Nathan wrote a blog on John Tukey, the pioneer in exploratory statistics. I did not realize that Tukey was also a pioneer in the early use of computers for data visualization! In 1972 using “32 buttons and a lightpen” on “an Information Display’s IDIIOM refresh CRT...

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VAST Challenge: What is a Healthy Network?

VAST Challenge: What is a Healthy Network?

In the overview blog of the VAST Challenge, we described the background and focus of the challenge, along with available data. In this blog, let’s probe the criteria for a healthy network has defined in Mini-Challenge 1A: Create a visualization of the health and policy status of the entire bank enterprise as of 2 pm on February 2. What areas of concern do you observe? It seems that...

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VAST Challenge: Surveying the Geography

VAST Challenge: Surveying the Geography

In the overview blog of the VAST Challenge, we described the background and focus of the challenge, along with available data. In this blog, let’s survey the geography of this weird planet called BankWorld. It is the same size of Earth, but consist of a single large land mass, about the size of Europe and Asia, but situated over North American, the north part of South American and the...

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VAST Challenge: Initial Look

VAST Challenge: Initial Look

The Visual Analytics Community released their VAST Challenge 2012. [By the way, VAST stands for "Visual Analytics Science and Technology".] This challenge has a ten-year lineage initiated by the Human Computer Interface Lab at the University of Maryland and archived at the Visual Analytics Benchmark Repository. The challenge will conclude on July 9 and become a session at IEEE VisWeek, which this...

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