Re: [agi] AGI's Philosophy of Learning
On Tue, Aug 19, 2008 at 2:56 PM, Abram Demski [EMAIL PROTECTED] wrote: Wow, sorry about that. I am using firefox and had no problems. The site was just the first reference I was able to find using google. Wikipedia references the same fact: http://en.wikipedia.org/wiki/Feedforward_neural_network#Multi-layer_perceptron I've done a bit more investigation. The web site is probably clean. These attacks are probably coming from a compromised ad server. ScanSafe Quote: Online ads have become a primary target for malware authors because they offer a stealthy way to distribute malware to a wide audience. In many instances, the malware perpetrator can leverage the distributed nature of online advertising and the decentralization of website content to spread malware to hundreds of sites. So you might encounter these attacks at any site, because almost all sites serve up ads to you. And you're correct that FireFox with AdBlock Plus and NoScript is safe from these attacks. Using a Linux or Apple operating system is even safer. I dualboot to use Linux for browsing and only go into Windows when necessary. Nowadays you can also use virtualization to run several operating systems at once. Cooperative Linux also runs happily alongside Windows. BillK --- agi Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: https://www.listbox.com/member/?member_id=8660244id_secret=111637683-c8fa51 Powered by Listbox: http://www.listbox.com
[agi] How We Look At Faces
{I wonder whether the difference below *is* biological - due to narrower
eyes taking that little bit longer to process?]
Culture Shapes How We Look at Faces
Caroline Blais1,2, Rachael E. Jack1, Christoph Scheepers1, Daniel Fiset1,2,
Roberto Caldara1
1 Department of Psychology, University of Glasgow, Glasgow, United Kingdom,
2 Département de Psychologie, Université de Montréal, Montréal, Canada
Abstract
Background
Face processing, amongst many basic visual skills, is thought to be
invariant across all humans. From as early as 1965, studies of eye movements
have consistently revealed a systematic triangular sequence of fixations
over the eyes and the mouth, suggesting that faces elicit a universal,
biologically-determined information extraction pattern.
Methodology/Principal Findings
Here we monitored the eye movements of Western Caucasian and East Asian
observers while they learned, recognized, and categorized by race Western
Caucasian and East Asian faces. Western Caucasian observers reproduced a
scattered triangular pattern of fixations for faces of both races and across
tasks. Contrary to intuition, East Asian observers focused more on the
central region of the face.
Conclusions/Significance
These results demonstrate that face processing can no longer be considered
as arising from a universal series of perceptual events. The strategy
employed to extract visual information from faces differs across cultures.
Source: PLoS One [Open Access]
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003022
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agi
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Re: [agi] How We Look At Faces
Mike Tintner wrote:
{I wonder whether the difference below *is* biological - due to narrower
eyes taking that little bit longer to process?]
Or there is a learned difference in the way Caucasians and Asians process
visual information due to written language differences (a larger alphabet).
Or there is a genetic difference, such as a broader fovea in Asians, or
differences in the eye muscles resulting in a lower saccade rate.
Or as the paper suggests, it is rude to stare at people in Asian cultures, so
they learn to recognize faces without looking directly at the eyes.
You can't tell from the paper, but perhaps you could conclude that for an AI,
getting the low level features right is not critical for face recognition.
-- Matt Mahoney, [EMAIL PROTECTED]
- Original Message
From: Mike Tintner [EMAIL PROTECTED]
To: agi@v2.listbox.com
Sent: Wednesday, August 20, 2008 10:16:42 AM
Subject: [agi] How We Look At Faces
{I wonder whether the difference below *is* biological - due to narrower
eyes taking that little bit longer to process?]
Culture Shapes How We Look at Faces
Caroline Blais1,2, Rachael E. Jack1, Christoph Scheepers1, Daniel Fiset1,2,
Roberto Caldara1
1 Department of Psychology, University of Glasgow, Glasgow, United Kingdom,
2 Département de Psychologie, Université de Montréal, Montréal, Canada
Abstract
Background
Face processing, amongst many basic visual skills, is thought to be
invariant across all humans. From as early as 1965, studies of eye movements
have consistently revealed a systematic triangular sequence of fixations
over the eyes and the mouth, suggesting that faces elicit a universal,
biologically-determined information extraction pattern.
Methodology/Principal Findings
Here we monitored the eye movements of Western Caucasian and East Asian
observers while they learned, recognized, and categorized by race Western
Caucasian and East Asian faces. Western Caucasian observers reproduced a
scattered triangular pattern of fixations for faces of both races and across
tasks. Contrary to intuition, East Asian observers focused more on the
central region of the face.
Conclusions/Significance
These results demonstrate that face processing can no longer be considered
as arising from a universal series of perceptual events. The strategy
employed to extract visual information from faces differs across cultures.
Source: PLoS One [Open Access]
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003022
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agi
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agi
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