Showing posts with label intelligence. Show all posts
Showing posts with label intelligence. Show all posts

Tuesday, June 10, 2014

An IQ test for computers: does it tell us how smart the computer is, or how dumb humans are?

 A Russian computer fooled 33% of people who engaged in an online chat into thinking it was a thirteen-year-old boy who didn't speak English very well.  But really, how hard is it for a computer to fool the least-intelligent third of humans that it is one of them?

 

Computer program fools humans, allegedly passes Turing test

A team in Russia claims its chatbot managed to dupe more than 30 percent of human interrogators into believing it's human. Are they to be believed?
It wasn't Siri, nor a souped-up Scarlett Johansson.
However, it seems that artificial intelligence may have gone even further toward a time when it will fool us that it's just like us. Emphasis on the "may have."
A Russia-based team claims to be the first to create a program that passed the Turing test. Named after Alan Turing -- who died on June 7, 1954 -- the challenge is to persuade a minimum of 30 percent of humans that the computer program is a real person.
As the Independent reported, in tests conducted at the Royal Society in London, the Eugene Goostman program managed to persuade 33 percent of people that it was a 13-year-old boy from Odessa, Ukraine.
The event was organized by the University of Reading. The university insisted that this is the first time the Turing test has been passed with flying deception.
Professor Ken Warwick, a visiting professor at Reading, said in a press release: "Some will claim that the Test has already been passed. The words Turing Test have been applied to similar competitions around the world. However this event involved the most simultaneous comparison tests than ever before, was independently verified and, crucially, the conversations were unrestricted. A true Turing Test does not set the questions or topics prior to the conversations. We are therefore proud to declare that Alan Turing's Test was passed for the first time on Saturday."
There's a certain convenience in pretending you're a 13-year-old boy, of course. You can fool people more easily because, unlike IBM's Watson, you don't have to pretend you know everything. Rather you have to have a very well-designed "dialog controller."
The man behind the boy, Vladimir Veslov, explained: "This year we improved the 'dialog controller,' which makes the conversation far more human-like when compared to programs that just answer questions. Going forward we plan to make Eugene smarter and continue working on improving what we refer to as 'conversation logic'."

...Those who are gullible to such things, though, are often those who think nothing right now of sending an online date whom they have never met huge sums of money.
The woman who was duped into wiring $500,000 to someone she'd met on a Christian dating site is but one example.
It's true, though, that as AI progresses, we'll be forced to think at least twice when meeting "people" online...





That Computer Actually Got an F on the Turing Test


Alan M Turing and colleagues working on the Ferranti Mark I Computer in 1951. Photo: SSPL/Getty Images
Alan M Turing and colleagues working on the Ferranti Mark I Computer in 1951. Photo: SSPL/Getty Images
Over the weekend, a group of programmers claimed they built a program that passed the famous Turing Test, in which a computer tries to trick judges into believing that it is a human. According to news reports, this is a historic accomplishment. But is it really? And what does it mean for artificial intelligence?
The Turing Test has long been held as a landmark in machine learning. Its creator, British computer scientist Alan Turing, thought it would represent a point when computers would have brains nearly as capable as our own. But the value of the Turing Test in modern day computer science is questionable. And the actual accomplishments of the test-winning chatbot are not all that impressive.
The Turing Test 2014 competition was organized to mark the 60th anniversary of Turing’s death and included several celebrity judges, including actor Robert Llewellyn of the British sci-fi sitcom Red Dwarf. The winner was a program named Eugene Goostman, which managed to convince 10 out of 30 judges that it was a real boy. Goostman is the work of computer engineering team led by Russian Vladimir Veselov and Ukrainian Eugene Demchenko.
The program had a few built-in advantages, such as the fact that he was claimed to be a 13-year-old non-native English speaker from Ukraine. It also only tricked the judges about 30 percent of the time (an F minus, or so). For many artificial intelligence experts, this is less than exciting...

Monday, May 27, 2013

Middle class and poor kids are scoring lower on tests than in the past compared to rich kids

Our society discards the potential contributions of gifted poor kids in order to keep the children of rich and middle class families in top positions. The rich-poor gap in test scores is about 40 percent larger now than it was 30 years ago. This statistic has nothing to do with race.

Obviously, this situation does not benefit our country since it puts less competent people in charge of progress. Nor does it benefit the planet, since our society is so powerful.


No Rich Child Left Behind
By SEAN F. REARDON
New York Times
April 27, 2013

...What is news is that in the United States over the last few decades these differences in educational success between high- and lower-income students have grown substantially.

One way to see this is to look at the scores of rich and poor students on standardized math and reading tests over the last 50 years. When I did this using information from a dozen large national studies conducted between 1960 and 2010, I found that the rich-poor gap in test scores is about 40 percent larger now than it was 30 years ago.

To make this trend concrete, consider two children, one from a family with income of $165,000 and one from a family with income of $15,000. These incomes are at the 90th and 10th percentiles of the income distribution nationally, meaning that 10 percent of children today grow up in families with incomes below $15,000 and 10 percent grow up in families with incomes above $165,000.

In the 1980s, on an 800-point SAT-type test scale, the average difference in test scores between two such children would have been about 90 points; today it is 125 points. This is almost twice as large as the 70-point test score gap between white and black children. Family income is now a better predictor of children’s success in school than race.

The same pattern is evident in other, more tangible, measures of educational success, like college completion. In a study similar to mine, Martha J. Bailey and Susan M. Dynarski, economists at the University of Michigan, found that the proportion of students from upper-income families who earn a bachelor’s degree has increased by 18 percentage points over a 20-year period, while the completion rate of poor students has grown by only 4 points.

In a more recent study, my graduate students and I found that 15 percent of high-income students from the high school class of 2004 enrolled in a highly selective college or university, while fewer than 5 percent of middle-income and 2 percent of low-income students did.

These widening disparities are not confined to academic outcomes: new research by the Harvard political scientist Robert D. Putnam and his colleagues shows that the rich-poor gaps in student participation in sports, extracurricular activities, volunteer work and church attendance have grown sharply as well.

In San Francisco this week, more than 14,000 educators and education scholars have gathered for the annual meeting of the American Educational Research Association. The theme this year is familiar: Can schools provide children a way out of poverty?

We are still talking about this despite decades of clucking about the crisis in American education and wave after wave of school reform.Whatever we’ve been doing in our schools, it hasn’t reduced educational inequality between children from upper- and lower-income families.

Part of knowing what we should do about this is understanding how and why these educational disparities are growing. For the past few years, alongside other scholars, I have been digging into historical data to understand just that. The results of this research don’t always match received wisdom or playground folklore.

The most potent development over the past three decades is that the test scores of children from high-income families have increased very rapidly. Before 1980, affluent students had little advantage over middle-class students in academic performance; most of the socioeconomic disparity in academics was between the middle class and the poor. But the rich now outperform the middle class by as much as the middle class outperform the poor. Just as the incomes of the affluent have grown much more rapidly than those of the middle class over the last few decades, so, too, have most of the gains in educational success accrued to the children of the rich.

Before we can figure out what’s happening here, let’s dispel a few myths.

The income gap in academic achievement is not growing because the test scores of poor students are dropping or because our schools are in decline. In fact, average test scores on the National Assessment of Educational Progress, the so-called Nation’s Report Card, have been rising — substantially in math and very slowly in reading — since the 1970s. The average 9-year-old today has math skills equal to those her parents had at age 11, a two-year improvement in a single generation. The gains are not as large in reading and they are not as large for older students, but there is no evidence that average test scores have declined over the last three decades for any age or economic group.

The widening income disparity in academic achievement is not a result of widening racial gaps in achievement, either. The achievement gaps between blacks and whites, and Hispanic and non-Hispanic whites have been narrowing slowly over the last two decades, trends that actually keep the yawning gap between higher- and lower-income students from getting even wider. If we look at the test scores of white students only, we find the same growing gap between high- and low-income children as we see in the population as a whole.

It may seem counterintuitive, but schools don’t seem to produce much of the disparity in test scores between high- and low-income students. We know this because children from rich and poor families score very differently on school readiness tests when they enter kindergarten, and this gap grows by less than 10 percent between kindergarten and high school.

There is some evidence that achievement gaps between high- and low-income students actually narrow during the nine-month school year, but they widen again in the summer months.

That isn’t to say that there aren’t important differences in quality between schools serving low- and high-income students — there certainly are — but they appear to do less to reinforce the trends than conventional wisdom would have us believe.

If not the usual suspects, what’s going on? It boils down to this: The academic gap is widening because rich students are increasingly entering kindergarten much better prepared to succeed in school than middle-class students. This difference in preparation persists through elementary and high school.

My research suggests that one part of the explanation for this is rising income inequality. As you may have heard, the incomes of the rich have grown faster over the last 30 years than the incomes of the middle class and the poor. Money helps families provide cognitively stimulating experiences for their young children because it provides more stable home environments, more time for parents to read to their children, access to higher-quality child care and preschool and — in places like New York City, where 4-year-old children take tests to determine entry into gifted and talented programs — access to preschool test preparation tutors or the time to serve as tutors themselves.

But rising income inequality explains, at best, half of the increase in the rich-poor academic achievement gap. It’s not just that the rich have more money than they used to, it’s that they are using it differently. This is where things get really interesting.

High-income families are increasingly focusing their resources — their money, time and knowledge of what it takes to be successful in school — on their children’s cognitive development and educational success. They are doing this because educational success is much more important than it used to be, even for the rich.

With a college degree insufficient to ensure a high-income job, or even a job as a barista, parents are now investing more time and money in their children’s cognitive development from the earliest ages. It may seem self-evident that parents with more resources are able to invest more — more of both money and of what Mr. Putnam calls “‘Goodnight Moon’ time” — in their children’s development. But even though middle-class and poor families are also increasing the time and money they invest in their children, they are not doing so as quickly or as deeply as the rich.

The economists Richard J. Murnane and Greg J. Duncan report that from 1972 to 2006 high-income families increased the amount they spent on enrichment activities for their children by 150 percent, while the spending of low-income families grew by 57 percent over the same time period. Likewise, the amount of time parents spend with their children has grown twice as fast since 1975 among college-educated parents as it has among less-educated parents. The economists Garey Ramey and Valerie A. Ramey of the University of California, San Diego, call this escalation of early childhood investment “the rug rat race,” a phrase that nicely captures the growing perception that early childhood experiences are central to winning a lifelong educational and economic competition.

It’s not clear what we should do about all this. Partly that’s because much of our public conversation about education is focused on the wrong culprits: we blame failing schools and the behavior of the poor for trends that are really the result of deepening income inequality and the behavior of the rich.

We’re also slow to understand what’s happening, I think, because the nature of the problem — a growing educational gap between the rich and the middle class — is unfamiliar. After all, for much of the last 50 years our national conversation about educational inequality has focused almost exclusively on strategies for reducing inequalities between the educational successes of the poor and the middle class, and it has relied on programs aimed at the poor, like Head Start and Title I.

We’ve barely given a thought to what the rich were doing. With the exception of our continuing discussion about whether the rising costs of higher education are pricing the middle class out of college, we don’t have much practice talking about what economists call “upper-tail inequality” in education, much less success at reducing it.

Meanwhile, not only are the children of the rich doing better in school than even the children of the middle class, but the changing economy means that school success is increasingly necessary to future economic success, a worrisome mutual reinforcement of trends that is making our society more socially and economically immobile.

We need to start talking about this. Strangely, the rapid growth in the rich-poor educational gap provides a ray of hope: if the relationship between family income and educational success can change this rapidly, then it is not an immutable, inevitable pattern. What changed once can change again. Policy choices matter more than we have recently been taught to think.

So how can we move toward a society in which educational success is not so strongly linked to family background? Maybe we should take a lesson from the rich and invest much more heavily as a society in our children’s educational opportunities from the day they are born. Investments in early-childhood education pay very high societal dividends. That means investing in developing high-quality child care and preschool that is available to poor and middle-class children. It also means recruiting and training a cadre of skilled preschool teachers and child care providers. These are not new ideas, but we have to stop talking about how expensive and difficult they are to implement and just get on with it.

But we need to do much more than expand and improve preschool and child care. There is a lot of discussion these days about investing in teachers and “improving teacher quality,” but improving the quality of our parenting and of our children’s earliest environments may be even more important. Let’s invest in parents so they can better invest in their children.

This means finding ways of helping parents become better teachers themselves. This might include strategies to support working families so that they can read to their children more often.. It also means expanding programs like the Nurse-Family Partnership that have proved to be effective at helping single parents educate their children; but we also need to pay for research to develop new resources for single parents.

It might also mean greater business and government support for maternity and paternity leave and day care so that the middle class and the poor can get some of the educational benefits that the early academic intervention of the rich provides their children. Fundamentally, it means rethinking our still-persistent notion that educational problems should be solved by schools alone.

The more we do to ensure that all children have similar cognitively stimulating early childhood experiences, the less we will have to worry about failing schools. This in turn will enable us to let our schools focus on teaching the skills — how to solve complex problems, how to think critically and how to collaborate — essential to a growing economy and a lively democracy.

Friday, May 24, 2013

Human Intelligence Has Declined Since Victorian Era, Research Suggests

People Getting Dumber? Human Intelligence Has Declined Since Victorian Era, Research Suggests
The Huffington Post
By Macrina Cooper-White
05/22/2013

Our technology may be getting smarter, but a provocative new study suggests human intelligence is on the decline. In fact, it indicates that Westerners have lost 14 I.Q. points on average since the Victorian Era.

What exactly explains this decline? Study co-author Dr. Jan te Nijenhuis, professor of work and organizational psychology at the University of Amsterdam, points to the fact that women of high intelligence tend to have fewer children than do women of lower intelligence. This negative association between I.Q. and fertility has been demonstrated time and again in research over the last century.

But this isn't the first evidence of a possible decline in human intelligence.

"The reduction in human intelligence (if there is any reduction) would have begun at the time that genetic selection became more relaxed," Dr. Gerald Crabtree, professor of pathology and developmental biology at Stanford University, told The Huffington Post in an email. "I projected this occurred as our ancestors began to live in more supportive high density societies (cities) and had access to a steady supply of food. Both of these might have resulted from the invention of agriculture, which occurred about 5,000 to 12,000 years ago."

As for Dr. te Nijenhuis and colleagues, they analyzed the results of 14 intelligence studies conducted between 1884 to 2004, including one by Sir Francis Galton, an English anthropologist and a cousin of Charles Darwin. Each study gauged participants' so-called visual reaction times -- how long it took them to press a button in response to seeing a stimulus. Reaction time reflects a person's mental processing speed, and so is considered an indication of general intelligence.

Hipp chronoscope, a device used to measure short intervals of time with an accuracy of 1/1,000th of a second. Hipp chronoscopes were used to measure reaction time in experimental psychology labs in the late 19th Century.

In the late 19th Century, visual reaction times averaged around 194 milliseconds, the analysis showed. In 2004 that time had grown to 275 milliseconds. Even though the machine gauging reaction time in the late 19th Century was less sophisticated than that used in recent years, Dr. te Nijenhuis told The Huffington Post that the old data is directly comparable to modern data.

Other research has suggested an apparent rise in I.Q. scores since the 1940s, a phenomenon known as the Flynn Effect. But Dr. te Nijenhuis suggested the Flynn Effect reflects the influence of environmental factors -- such as better education, hygiene and nutrition -- and may mask the true decline in genetically inherited intelligence in the Western world.

This new research was published in the April 13 issue of Intelligence.


Dog Gets Grammar? Chaser The Border Collie Knows Nouns, Verbs & Prepositions, Study Shows (VIDEO)
The Huffington Post
By Jacqueline Howard
05/23/2013

Who said you can't teach an old dog new tricks?

Chaser, a 9-year-old border collie that gained fame for understanding more than 1,000 English words, now has shown that she can understand sentences. And not just two-word sentences, such as "fetch stick" or "paw ball" -- but sentences containing a prepositional object, verb, and direct object.

You go, girl.

"Chaser intuitively discovered how to comprehend sentences based on lots of background learning about different types of words," Dr. John Pilley, Chaser's owner and a retired psychology professor at Wofford College in South Carolina, told ScienceNews.

Dr. Pilley, the author of a new study about Chaser's abilities, previously taught her how to recognize objects by name, as well as verbs and prepositions in commands. He reinforced her understanding with praise and play.

Now one of Pilley's YouTube videos demonstrates how Chaser may understand these grammatical elements together in a sentence.

In the video (shown above), two of Chaser's toys are placed on opposite sides of a room (one toy is named "leopard," the other "ringneck"). When Chaser is told "to leopard, take ringneck," she follows the command by picking up "ringneck" and dropping it by "leopard."

Dr. Pilley wrote in his study's abstract that Chaser's understanding of such sentences was tested with multiple and familiar objects, as well as novel objects. She was even tested when she couldn't see the objects at the time she received a command. The study published online in the journal Learning and Motivation on May 13, 2013.

"Findings were statistically significant in all three scenarios," Dr. Pilley wrote. "Successful findings were attributed to Chaser's intensive training in her first three years of life."v Dr. Stanley Coren, a psychology professor at the University of British Columbia and an expert on canine intelligence, told The Huffington Post that similar studies showing dogs understanding simple two-word sentences -- such as "pull toy" or "fetch ball" -- have been repeated before.

Dr. Coren was not involved in Dr. Pilley's research.

So, just how smart are dogs?

"Roughly speaking, the average dog is equivalent to a human two-year-old in terms of mental abilities," Dr. Coren said. "And the 'super dogs' are equivalent to maybe a human two-and-a-half-year-old.”

"Super dogs" are breeds ranked in the top 20 percent of canine intelligence, Dr. Coren said. Border collies are considered the most intelligent, followed by poodles and German shepherds.

Tuesday, December 15, 2009

The octopus uses tools, solves mazes


Tool Use Found in Octopuses
Wired Science
Brandon Keim
December 14, 2009

After years of surprising scientists with their cleverness and smarts, some octopuses appear to also use tools.

Veined octopuses observed off the coast of Indonesia carried coconut shell halves under their bodies, and assembled them as necessary into shelters — something that wasn’t supposed to be possible in their corner of the animal kingdom.

“To date, invertebrates have generally been regarded as lacking the cognitive abilities to engage in such sophisticated behaviors,” wrote Museum Victoria biologists who described the octopuses in a paper published Monday in Current Biology. “The discovery of this octopus tiptoeing across the sea floor with its prized coconut shells suggests that even marine invertebrates engage in behaviors that we once thought the preserve of humans.”


In captivity, some species of octopuses have solved mazes, remembered cues and passed other cognitive tests typically associated with advanced vertebrates. More anecdotally, they’re known for popping aquarium hoods, raiding other tanks and demonstrating what might be called mischief.

All this has come as a bit of a surprise to scientists. After all, octopuses are descended from mollusks. They’re more closely related to clams than to people...