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Businesses

Exploring the Relationships Between Tech Skills (Visualization) 64 64

Nerval's Lobster writes: Simon Hughes, Dice's Chief Data Scientist, has put together an experimental visualization that explores how tech skills relate to one another. In the visualization, every circle or node represents a particular skill; colors designate communities that coalesce around skills. Try clicking "Java", for example, and notice how many other skills accompany it (a high-degree node, as graph theory would call it). As a popular skill, it appears to be present in many communities: Big Data, Oracle Database, System Administration, Automation/Testing, and (of course) Web and Software Development. You may or may not agree with some relationships, but keep in mind, it was all generated in an automatic way by computer code, untouched by a human. Building it started with Gephi, an open-source network analysis and visualization software package, by importing a pair-wise comma-separated list of skills and their similarity scores (as Simon describes in his article) and running a number of analyses: Force Atlas layout to draw a force-directed graph, Avg. Path Length to calculate the Betweenness Centrality that determines the size of a node, and finally Modularity to detect communities of skills (again, color-coded in the visualization). The graph was then exported as an XML graph file (GEXF) and converted to JSON format with two sets of elements: Nodes and Links. "We would love to hear your feedback and questions," Simon says.

Comment: Re:Bernie Sanders (Score 1) 233 233

Or are you suggesting that something so ephemeral as an image could lead to action on the part of rage induced media overload

That was pretty much the claim that was made when Sarah Palin's group showed Gabby Giffords' congressional district with a crosshair over it.

LK

Comment: Re:Business model? (Score 1, Informative) 346 346

Whoosh!

There was a reason why the part about referencing how it was before the medallion system was included in the post you replied to.

The medallion system was EXPLICITLY DESIGNED to reduce the number of taxis in New York City. That was the MAIN FEATURE of it. Licenses were introduced to regulate the drivers, but that was separate from the medallion effort.

Go back and do your homework.

Comment: Convenient Truth (Score 2) 185 185

Those jobs are factory assembly work, not "tech". They are in the same category as assembling car parts, radios, or toy wagons. Cook is talking about creative development where you work with your mind, not simple low-skilled labor.

Yes, it sucks. But conflating the two in this article is dishonest.

Comment: Re:GOOD (Score 1) 173 173

An SF-86 is what you fill out if you're getting a security clearance. If it is SECRET level, they pull a credit report, criminal check, and send postcards to your relatives and references asking questions about you.

If it is TOP SECRET they send investigators out to talk to former neighbors, friends and relatives instead of sending a post card. They do a real investigation.

The big question is whether or not the results of those investigations are kept in the system with the forms. You know, sort of one big file on an individual. My best guess would be "yes".

+ - Man with the "golden arm" has saved lives of 2 million babies->

schwit1 writes: James Harrison, known as "The Man with the Golden Arm," has donated blood plasma from his right arm nearly every week for the past 60 years. Soon after Harrison became a donor, doctors called him in. His blood, they said, could be the answer to a deadly problem. Harrison was discovered to have an unusual antibody in his blood and in the 1960s he worked with doctors to use the antibodies to develop an injection called Anti-D. It prevents women with rhesus-negative blood from developing RhD antibodies during pregnancy.

"In Australia, up until about 1967, there were literally thousands of babies dying each year, doctors didn't know why, and it was awful," explains Jemma Falkenmire, of the Australian Red Cross Blood Service. "Women were having numerous miscarriages and babies were being born with brain damage."

It was the result of rhesus disease — a condition where a pregnant woman's blood actually starts attacking her unborn baby's blood cells. In the worst cases it can result in brain damage, or death, for the babies. Australia was one of the first countries to discover a blood donor with this antibody, so it was quite revolutionary at the time.

Link to Original Source

+ - NASA Releases Massive Climate Change Data Set->

An anonymous reader writes: NASA is releasing global climate change projections to help scientists and planners better understand local and global effects of hazards. The data includes both historical measurements from around the world and simulations based on those measurements. "The NASA climate projections provide a detailed view of future temperature and precipitation patterns around the world at a 15.5 mile (25 kilometer) resolution, covering the time period from 1950 to 2100. The 11-terabyte dataset provides daily estimates of maximum and minimum temperatures and precipitation over the entire globe." You can download them and look through the projections yourself at NASA's Climate Model Data Services page.
Link to Original Source

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