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Using Speech Patterns to Detect Psychopaths

  • Posted on November 22, 2011 at 1:05 pm

hannibal Using Speech Patterns to Detect Psychopaths

With regard to psychopaths, “We think the ‘uhs’ and ‘ums’ are about putting the mask of sanity on,” Hancock told LiveScience.

Psychopaths appear to view the world and others instrumentally, as theirs for the taking, the team, which also included Stephen Porter from the University of British Columbia, wrote.

As they expected, the psychopaths’ language contained more words known as subordinating conjunctions. These words, including “because” and “so that,” are associated with cause-and-effect statements.

“This pattern suggested that psychopaths were more likely to view the crime as the logical outcome of a plan (something that ‘had’ to be done to achieve a goal),” the authors write.

And finally, while most of us respond to higher-level needs, such as family, religion or spirituality, and self-esteem, psychopaths remain occupied with those needs associated with a more basic existence.

MSNBC: How to spot psychopaths: Speech patterns give them away

Bruce Schneier writes: “I worry about people being judged by these criteria. Psychopaths make up about 1% of the population, so even a small false-positive rate can be a significant problem.”

See also: The Rise of Predictive Policing: Police Using Statistics to Predict Crime

From http://feedproxy.google.com/~r/Technoccult/~3/6s6_WvrKfBk/

The Rise of Predictive Policing: Police Using Statistics to Predict Crime

  • Posted on June 6, 2011 at 4:52 pm

The Minority Report The Rise of Predictive Policing: Police Using Statistics to Predict Crime

The Department of Homeland security is field testing a system that will attempt to predict which passengers on an airline are planning terrorist activity, according to Nature. The system, called Future Attribute Screening Technology (FAST) looks at a number of factors, including your pulse, the steadiness of your gaze and the way you walk and calculates the probability that you’re planning to commit a crime. It’s a bit like a polygraph, but it doesn’t require subjects to be connecting to a polygraph.

DHS claims that the system is 70% effective in lab tests.

Nature: Terrorist ‘pre-crime’ detector field tested in United States

But DHS isn’t the only law enforcement agency looking to statistic modeling to predict crime. Earlier this year Slate ran a story on how police departments, including the LAPD and Chicago PD, are researching predictive policing. This projects aren’t about predicting the actions of one individual, Minority Report style, but instead are designed to help decide how best to allocate police resources.

Slate: Can police really predict crime before it happens?.

From http://technoccult.net/archives/2011/06/06/the-rise-of-predictive-policing-police-using-statistics-to-predict-crime/

“Wisdom of the Crowd” Wiped Out When Individuals Know What Others in the Crowd are Thinking

  • Posted on May 25, 2011 at 10:47 am

The “wisdom of the crowd” has become a bit of a pop cliché, but it’s backed up by real-world evidence. When groups of people are asked to provide estimates of obscure information, the median value of their answers will often be remarkably close to the right one, even though many of their answers are laughably wrong. But crowds rarely act in the absence of social influences, and some researchers in Zurich have now shown that providing individuals information about what their fellow crowd-members are thinking is enough to wipe out the crowd’s wisdom. [...]

Compared to the control setup, the additional information changed the crowd’s collective behavior dramatically. In what the authors term the “social influence effect,” the panels that were provided with information about their peers quickly narrowed their focus onto a fairly limited set of values, meaning the diversity of their answers decreased. In contrast, the control group retained its initial diversity throughout the repeated rounds of questioning.

Worse still, the panels that were provided with social information narrowed in on answers that were more likely to be wrong.

Ars Technica: Social influences kill the wisdom of the crowd

From http://technoccult.net/archives/2011/05/25/wisdom-of-the-crowd-wiped-out-when-individuals-know-what-others-in-the-crowd-are-thinking/

Meet the Happiest Man on Earth: Alvin Wong

  • Posted on March 9, 2011 at 1:06 pm

alvin wong and wife Meet the Happiest Man on Earth: Alvin Wong

The New York Times asked Gallup to come up with a statistical composite for the happiest person in America, based on the characteristics that most closely correlated with happiness in 2010. Men, for example, tend to be happier than women, older people are happier than middle-aged people, and so on.

Gallup’s answer: he’s a tall, Asian-American, observant Jew who is at least 65 and married, has children, lives in Hawaii, runs his own business and has a household income of more than $120,000 a year. A few phone calls later and …

Meet Alvin Wong.

New York Times: Discovered: The Happiest Man in America

(via Theoretick)

The article ends abruptly.

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