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Technology

Could Robots Become A Toddler’s New Best Friend?

According to the robotics community, it’s unlikely that any robot now on the market could hold your attention for more than 10 hours. (Actually, if you have a robot dog gathering dust on a closet shelf , you probably already know that.)
A new study, however, indicates that this threshold is poised to be broken—at least if the humans interacting with the machines are youngsters. Researchers found that a two-foot- (61-centimeter) tall metal man easily won over a classroom of tykes, aged 18 to 24 months, who intermittently spent time with it over a five-month period.
“Our results suggest that current robot technology is surprisingly close to achieving autonomous bonding and socialization with human toddlers for significant periods of time,” University of California, San Diego, researchers report in Proceedings of the National Academy of Sciences USA.
QRIO, a robot programmed with a slew of social functions, was placed in U.C. San Diego’s Early Childhood Education Center 45 times over the five-month observation period. For the first 27 sessions, the robot was allowed access to its full arsenal of programmed social behaviors. In addition, a controller could send commands to the humanoid, prompting it to wave, dance, sit, stand, etcetera (although there was a lag time between the prompt and when the robot made the movement).
The Sony QRIO
Creative Commons License photo credit: kaioshin
The tots began to increasingly interact with the robot and treat it more like a peer than an object during the first 11 sessions. The level of social activity increased dramatically when researchers added a new behavior to QRIO’s repertoire: If a child touched the humanoid on its head, it would make a giggling noise.
“The contingency coupled with the positive reaction of giggling made clear to the children that the robot was responsive to them and served often to initiate interaction episodes,” says study co-author Fumihide Tanaka, a researcher at U.C. San Diego’s Institute for Neural Computation and at Sony Intelligence Dynamics Laboratories, Inc.
For 15 sessions midway through the experiment, QRIO was programmed to repeatedly dance to the same song rather than interact with the kids. During these trials, the children became far less interested in the friendly automaton. For the final three sessions, however, QRIO could once again unleash its entire social arsenal.
Tanaka and his colleagues scored the quality of social interaction primarily based on where children touched the robot. A teddy bear and an inanimate toy robot named Robby accompanied QRIO during most of the observation period. The teddy bear was introduced first and prior to the introduction of the robots was very popular. But the stuffed animal was lost in the shuffle when QRIO and Robby came on the scene. Though the toddlers often manhandled Robby, they eventually began touching QRIO in a pattern similar to the way they touched one another—mostly on its arms and hands.
The only time they deviated from this behavior was when QRIO was programmed to giggle, at which point they frequently petted its face and head. Another indication that the little humans viewed robo-kid as a compeer was the way they reacted when QRIO ran out of juice and lay down as if to take a nap: Some of the children would try to wake and help it up, whereas others would cover it with a blanket.
“Our work suggests that touch integrated on the time-scale of a few minutes is a surprisingly effective index of social connectedness,” Tanaka says. “Something akin to this index may be used by the human brain to evaluate its own sense of social well-being.” He adds that social robots like QRIO could greatly enrich classrooms and assist teachers in early learning programs.

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By Nikhil Swaminathan
Courtesy Sciam

The thing observed in this article points out that we can use robots as information gathers we could gather world knowledge this way through the interactions with toddlers surely this will pay off over time? As the toddlers grow so will the program through its various manifestations and soon the component of world knowledge will increase. Now this is vital for the success of any program all humans come into this world with a brain their gene program decides that this is going to be different from a monkey and that it’s going to be along human lines in brain design space (which could be imagined as a huge room stretching off to infinity which is the sum representation of all the brains that can be made in the observable 3 dimensions, we are so similar that we occupy just a point in this infinite space, a frikkin’ point). Next, something wonderful happens, we are born and we interact, we cry, we laugh, we learn. This world knowledge form the basis of the instinctive “common sense” seen in humans we know water is wet because as a baby we touched it and the brain recorded the sensation and maybe our parents told us that you are getting wet, so that word was associated with that feeling.

We are basically bottom-up systems we learn and we interact and then learn some more. This positive feedback loop is something, I feel, we need to mimic in order to create machines that are somewhat intelligent. Let’s just throw the complex symbolic reasoning all the complex mathematics that are used to simulate creatures out of the window and let’s just create a child, a one day old child and let it learn. We could provide the foundation of this by putting in facilities like reasoning through bayesian systems, how the memory storage should be done, basically reverse engineer the brain, like kurzweil says, and put whatever is in it and let it loose. Then we wait and observe and let it interact to see what happens over time. Does the system grow? Is any knowledge gathered through sensory feedback used? So on and so forth, in this scenario we only maintain the basic mathematics, pattern recognition algorithms so and so forth but nothing else, will it work?

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Reviews

Preparing for SAT Subject Tests online

I gave the SAT Subject Tests about a month back, and this post was scheduled to come out around that time. Didn’t materialize. Better late than never, so here it is. This post is about online resources to prepare for the SAT Subject Tests (earlier known as SAT II). Requirement for giving the SAT Subject Tests depends from college to college – so it’s best for you to list down the colleges you want to join and check up their individual requirements. The College Board database of colleges should be adequate to guide you to the official website of the colleges you want, from where you can look up info.

There’s a staggeringly large amount of resources (and free ones at that) which are available for the SAT Reasoning Test; so it would be natural to expect that there should be at least a sizable amount of preparation material for SAT II online. Surprisingly, there is hardly any! Forget study material, there aren’t even many sites offering tests – whether free or paid. Before you look those up, I would suggest that you go through the SAT Subject Test Preparation Booklet that the College Board itself releases. A new version comes out every year, but the content stays the same; nevertheless, to check up for any newer versions, run this particular search by clicking here.

Just two companies which have tangible offerings: Petersons, and SparkNotes. Petersons.com offers simulated SAT Subject Tests, but not study material. Compared to SparkNotes (which I’ll get to in a moment), Petersons.com’s offering is costlier. I haven’t used it, but I believe (from the system requirements it has given) that it uses a Java applet to serve the mock test questions – which would probably suck. Not the questions, that fact that you can’t adjust the font, et al. (I hate 8pt size font and aliased text that is standard baggage with Java applets.) You also need to buy tests for each subject separately, and your tests will be active for 90 days.

SparkNotes is the one I used. Started by college graduates who wrote online textbooks to help undergraduates out, SparkNotes was bought by Barnes & Noble a few years back. It’s still written mostly by college graduates, but the standard is quite good. Although Barnes & Noble nowadays sells SparkNotes’ textbooks in printed form, the SparkNotes website still offers its material online. The catch? No downloadable PDF version – you need to read the book page-by-page, online, for zilch. Sure, it’s tedious, but it does a helluva job in acquainting you with the things you’d be expecting.

My rating of SparkNotes’ SAT Subject Test prep services: 8.3 / 10

The site also offers online testing services. You can buy tests for an individual subject for $15 – or buy tests for all subjects for $25. The latter makes sense of course, because you’ll probably be giving the Subject Test for more than one subject. Unlike Petersons, your tests will be active for a period of one year. I have used a LOT of e-learning services over the years (because I’m a big supporter of the e-learning concept) and I must say that SparkNotes’ implementation of its online testing service simply THE BEST that I’ve ever come across. Most other online test services which I’ve come across screw up at some place or the other.

SparkNotes’ online test service is brilliantly executed – starting from the progress meter at the top, the sidebar which gives you quick and direct access to any question while showing you its status, the distinction between a flagged question and a guess – everything makes your testing experience that much more easier. Specifically, I liked the ability to distinctly mark an answer as a guess or flag it for review – and then track your success on it later. Most other test services generally just allow you to mark a question for review; but SparkNotes’ ability to mark an answer as a guess allows you to find out how good your guessing abilities are. The post-test analysis gives you a clear view of the areas which need work. Again, most online test services have analysis, but none of them is as beautifully represented as SparkNotes’ version.

In-depth explanations for each and every option for each question in the post-test review provides an insight into what traps the test-makers lay. SAT II is more a test of how many questions you can attempt in the very limited amount of time that you get and NOT fall for the traps that are laid to make you choose an incorrect option. Please note (and this is for any subject) that the scaled score which SparkNotes gives you may vary by plus-minus 20 on the actual test, depending on the performance of others giving the test. I gave SAT II tests for Math (level 2) and physics, so here’s specific talk on both.

Math Level 2

Test comprises of 50 questions to be done in one hour. If you’ve taken calculus and trigonometry classes in high school and are confused between taking Math Level 1 or Level 2 I would suggest you go for the latter. Though the syllabus of Level 1 is easier, it’s much harder to get a high score in Level 1 than Level 2 because easier questions mean that more people get questions right.

SparkNotes’ material on Math Level 2 is good, especially because it teaches you how to actually do the math; rather than The Princeton Review‘s approach of shirking work. The only omission I found was that standard deviation and linear regression were topics not covered by SparkNotes, but have been asked in the actual SAT II Math Level 2 tests. About the simulated tests that SparkNotes gives, I would say that they are of a slightly lower level than the actual test. By ‘slightly’, I mean exactly that – the level is just a bit lower. The easy and medium difficulty questions are of the actual test level, but some of the more advanced difficulty levels in the actual SAT are a bit tougher than SparkNotes’.

Calculators are allowed in the math test. Yes, they are necessary – there will be some questions which you simply can’t solve without one; and many which you can’t solve quickly without one. Having said that, if you don’t know how to solve a question the ‘normal’ way a calculator won’t help you. A basic scientific calculator with support for solving quadratic equations will be sufficient. There’s no need to get a graphing calculator because there are hardly any questions which need graphing ability; moreover, those select few questions which do make it through the cracks can be solved using a bit of scratch work. Graphing calculators are needlessly complex for the tasks set in SAT II and would be a hindrance instead of a helping hand. So stick to a scientific calculator.

Physics

SAT Subject Test for Physics consist of 75 questions to be answered in an hour. Calculators are NOT allowed; therefore, the questions are designed to test your theoretical knowledge rather than plug-chug arithmetic skills. Just because it tests theoretical knowledge doesn’t make it ‘easier’, because the answer choices given can have more enticing traps to trip you up. SparkNotes’ book on physics for SAT II is more than adequate. The post-chapter questions should help you figure out any weak points. I found the full-length tests that SparkNotes has for the Physics SAT Subject Test were of an equal level to the actual test.