Google's Kurzweil on teaching human language to computers



Ray Kurzweil at SXSW

Google's Ray Kurzweil.




Famed inventor and futurist Ray Kurzweil joined Google last month to work on "some of the hardest problems in computer science," specifically machine learning and language processing.


"The project we plan to do is focused on natural language understanding," Kurzweil told Singularity Hub in an interview (see video below). "We want to give computers the ability to understand the language that they're reading."


As the Web giant's director of engineering, Kurzweil's said the challenge isn't just one of the hardest but also the most important.


"It's ambitious, in fact there's no more important project than understanding intelligence and re-creating it," he said




Kurzweil explains that one of the chief challenges he and his team at Google face is that language is hierarchical and only mammals have the ability to understand hierarchical ideas. Kurzweil notes that computers such as IBM's Watson are now being programmed to process human information in a similar fashion.


Kurzweil predicts that fruits of his research will eventually be applied to "Google scale" -- the Web giant vast data resources.


"I envision some years from now that the majority of search queries will be answered without you actually asking," Kurzweil said. "It'll just know this is something that you're going to want to see."

Read More..

Google and Twitter Help Track Influenza Outbreaks


This flu season could be the longest and worst in years. So far 18 children have died from flu-related symptoms, and 2,257 people have been hospitalized.

Yesterday Boston Mayor Thomas Menino declared a citywide public health emergency, with roughly 700 confirmed flu cases—ten times the number the city saw last year.

"It arrived five weeks early, and it's shaping up to be a pretty bad flu season," said Lyn Finelli, who heads the Influenza Outbreak Response Team at the Centers for Disease Control and Prevention (CDC).

Boston isn't alone. According to the CDC, 41 states have reported widespread influenza activity, and in the last week of 2012, 5.6 percent of doctor's office visits across the country were for influenza-like illnesses. The severity likely stems from this year's predominant virus: H3N2, a strain known to severely affect children and the elderly. Finelli notes that the 2003-2004 flu season, also dominated by H3N2, produced similar numbers. (See "Are You Prepped? The Influenza Roundup.")

In tracking the flu, physicians and public health officials have a host of new surveillance tools at their disposal thanks to crowdsourcing and social media. Such tools let them get a sense of the flu's reach in real time rather than wait weeks for doctor's offices and state health departments to report in.

Pulling data from online sources "is no different than getting information on over-the-counter medication or thermometer purchases [to track against an outbreak]," said Philip Polgreen, an epidemiologist at the University of Iowa.

The most successful of these endeavors, Google Flu Trends, analyzes flu-related Internet search terms like "flu symptoms" or "flu medication" to estimate flu activity in different areas. It tracks flu outbreaks globally.

Another tool, HealthMap, which is sponsored by Boston Children's Hospital, mines online news reports to track outbreaks in real time. Sickweather draws from posts on Twitter and Facebook that mention the flu for its data.

People can be flu-hunters themselves with Flu Near You, a project that asks people to report their symptoms once a week. So far more than 38,000 people have signed up for this crowdsourced virus tracker. And of course, there's an app for that.

Both Finelli, a Flu Near You user, and Polgreen find the new tools exciting but agree that they have limits. "It's not as if we can replace traditional surveillance. It's really just a supplement, but it's timely," said Polgreen.

When people have timely warning that there's flu in the community, they can get vaccinated, and hospitals can plan ahead. According to a 2012 study in Clinical Infectious Diseases, Google Flu Trends has shown promise predicting emergency room flu traffic. Some researchers are even using a combination of the web database and weather data to predict when outbreaks will peak.

As for the current flu season, it's still impossible to predict week-to-week peaks and troughs. "We expect that it will last a few more weeks, but we can never tell how bad it's going to get," said Finelli.

Hospitals are already taking precautionary measures. One Pennsylvania hospital erected a separate emergency room tent for additional flu patients. This week, several Illinois hospitals went on "bypass," alerting local first responders that they're at capacity—due to an uptick in both flu and non-flu cases—so that patients will be taken to alternative facilities, if possible.

In the meantime, the CDC advises vaccination, first and foremost. On the bright side, the flu vaccine being used this year is a good match for the H3N2 strain. Though Finelli cautions, "Sometimes drifted strains pop up toward the end of the season."

It looks like there won't be shortages of seasonal flu vaccine like there have been in past years. HealthMap sports a Flu Vaccine Finder to make it a snap to find a dose nearby. And if the flu-shot line at the neighborhood pharmacy seems overwhelming, more health departments and clinics are offering drive-through options.


Read More..

Judge: Holmes Can Face Trial for Aurora Shooting


Jan 10, 2013 8:45pm







ap james holmes ll 120920 wblog Aurora Shooting Suspect James Holmes Can Face Trial

(Arapahoe County Sheriff/AP Photo)


In a ruling that comes as little surprise, the judge overseeing the Aurora, Colo., theater massacre has ordered that there is enough evidence against James Holmes to proceed to a trial.


In an order posted late Thursday, Judge William Sylvester wrote that “the People have carried their burden of proof and have established that there is probable cause to believe that Defendant committed the crimes charged.”


The ruling came after a three-day preliminary hearing this week that revealed new details about how Holmes allegedly planned for and carried out the movie theater shooting, including how investigators say he amassed an arsenal of guns and ammunition, how he booby-trapped his apartment to explode, and his bizarre behavior after his arrest.


PHOTOS: Colorado ‘Dark Knight Rises’ Theater Shooting


Holmes is charged with 166 counts, including murder, attempted murder and other charges related to the July 20 shooting that left 12 people dead and 58 wounded by gunfire. An additional 12 people suffered non-gunshot injuries.


One of the next legal steps is an arraignment, at which Holmes will enter a plea. The arraignment was originally expected to take place Friday morning.


Judge Sylvester indicated through a court spokesman that he would allow television and still cameras into the courtroom, providing the outside world the first images of Holmes since a July 23 hearing. Plans for cameras in court, however, were put on hold Thursday afternoon.


“The defense has notified the district attorney that it is not prepared to proceed to arraignment in this case by Friday,” wrote public defenders Daniel King, Tamara Brady and Kristen Nelson Thursday afternoon in a document objecting to cameras in court.


A hearing in the case will still take place Friday morning. In his order, Judge Sylvester said it should technically be considered an arraignment, but noted the defense has requested a continuance.  Legal experts expect the judge will grant the continuance, delaying the arraignment and keeping cameras out of court for now.


Sylvester also ordered that Holmes be held without bail.


Holmes’ attorneys have said in court that the former University of Colorado neuroscience student is mentally ill. The district attorney overseeing the case has not yet announced whether Holmes, now 25, can face the death penalty.



SHOWS: World News






Read More..

Hints of new dark force seen in galactic smash-ups









































Colliding clusters of galaxies may hold clues to a mysterious dark force at work in the universe. This force would act only on invisible dark matter, the enigmatic stuff that makes up 86 per cent of the mass in the universe.












Dark matter famously refuses to interact with ordinary matter except via gravity, so theorists had assumed that its particles would be just as aloof with each other. But new observations suggest that dark matter interacts significantly with itself, while leaving regular matter out of the conversation.












"There could be a whole class of dark particles that don't interact with normal matter but do interact with themselves," says James Bullock of the University of California, Irvine. "Dark matter could be doing all sorts of interesting things, and we'd never know."











Some of the best evidence for dark matter's existence came from the Bullet clusterMovie Camera, a smash-up in which a small galaxy cluster plunged through a larger one about 100 million years ago. Separated by hundreds of light years, the individual galaxies sailed right past each other, and the two clusters parted ways. But intergalactic gas collided and pooled on the trailing ends of each cluster.













Mass maps of the Bullet cluster showed that dark matter stayed in line with the galaxies instead of pooling with the gas, proving that it can separate from ordinary matter. This also hinted that dark matter wasn't interacting with itself, and was affected by gravity alone.











Musket shot













Last year William Dawson of the University of California, Davis and colleagues found an older set of clusters seen about 700 million years after their collision. Nicknamed the Musket Ball cluster, this smash-up told a different tale. When Dawson's team analysed the concentration of matter in the Musket Ball, they found that galaxies are separated from dark matter by about 19,000 light years.












"The galaxies outrun the dark matter. That's what creates the offset," Dawson said. "This is fitting that picture of self-interacting dark matter." If dark matter particles do interact, perhaps via a dark force, they would slow down like the gas.












This new picture could solve some outstanding mysteries in cosmology, Dawson said this week during a meeting of the American Astronomical Society in Long Beach, California. Non-interacting dark matter should sink to the cores of star clusters and dwarf galaxies, but observations show that it is more evenly distributed. If it interacts with itself, it could puff up and spread outward like a gas.












So why doesn't the Bullet cluster show the same separation between dark matter and galaxies? Dawson thinks it's a question of age – dark matter in the younger Bullet simply hasn't had time to separate.











New window












The idea complements a previous study that saw evidence for dark forces at work in the Bullet cluster. In 2007 Glennys Farrar of New York University and colleagues said that the smaller cluster was moving too fast for gravity alone to be responsible. They suggested that some mysterious force related to dark matter might be hurrying it along.













Still, two clusters is not a lot to go on. Dawson, Bullock and colleagues are following up with about 20 more galactic collisions to see if they show any unusual behaviours. "I really think that we're almost to the point where we have enough observational data in hand," Dawson said. "We could close the book on self-interacting dark matter."












If the new force does exist, we might soon be able to see its effects on things influenced by dark matter, such as the behavior of black holes or the masses of the first stars, says Douglas Finkbeiner of Harvard University in Cambridge, Massachusetts, who was not involved in the new study.












"The simple thing isn't always the right thing, so I really appreciate that Will is trying to look into these other possibilities," he says.












Louis Strigari of Stanford University in California agrees. "Self-interacting dark matter is worth pursuing because we're still very ignorant," he said. "We're desperate to understand what dark matter is, so any new window is welcome."


















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.









































































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Israeli, US defence chiefs discuss Middle East issues






WASHINGTON: US Defence Secretary Leon Panetta and his Israeli counterpart Ehud Barak met to underscore a "strong US commitment to Israel's security", the Pentagon said.

US Defence Department spokesman George Little said in a statement that the two men "discussed a range of issues, and expressed their commitment to ensuring continued cooperation on many important regional issues -- particularly Syria, Iran, and Gaza".

"The secretary commended Minister Barak on his tireless efforts in advancing the US-Israel strategic relationship," Little said, adding the pair "reiterated the strong US commitment to Israel's security and the strong US-Israel defence relationship."

The meeting was the 11th for Barak and Panetta, who is leaving his post shortly.

President Barack Obama has nominated former US senator Chuck Hagel to succeed Panetta, a longtime Washington figure who has said he will be leaving public life.

- AFP/al



Read More..

Anonymous petitions U.S. to see DDoS attacks as legal protest



It's hard to imagine a group that adheres to anarchic ideology would want its actions legalized under U.S. law. But that is exactly what Anonymous is doing.

The loose-knit group of hackers submitted a petition to President Obama this week asking that distributed denial-of-service attacks be recognized as a legal form of protest.

The petition, which is posted on the White House's "We the People" Web site, claims that DDoS attacks are not illegal hacking but rather a way for people to carry out protests online. Similar to the Occupy movement when protesters pitched tents in public spaces, the petition says DDoS attacks also occupy public spaces in order to send a message.


With the advance in internet techonology [sic], comes new grounds for protesting. Distributed denial-of-service (DDoS), is not any form of hacking in any way. It is the equivalent of repeatedly hitting the refresh button on a webpage. It is, in that way, no different than any "occupy" protest. Instead of a group of people standing outside a building to occupy the area, they are having their computer occupy a website to slow (or deny) service of that particular website for a short time.

As part of this petition, those who have been jailed for DDoS should be immediatly [sic] released and have anything regarding a DDoS, that is on their "records", cleared.

Anonymous has claimed responsibility for many DDoS attacks over the years, the majority of which had political overtones. For example, in an effort to defend WikiLeaks in 2010, the hacking group launched a slew of DDoS attacks on companies, government agencies, and organizations it believed to be "impairing" WikiLeaks' efforts to release classified information.

This year, Anonymous has also led DDoS campaigns against Syrian government Web sites for the government's alleged shutdown of the Internet; and it has conducted a "cyberwar" against the Israeli government in protest of government attacks on Gaza.

The U.S. government may be hard pressed to accept Anonymous' plea. Just yesterday, news hit that the massive DDoS campaign that has been targeting several U.S. banks is most likely being waged by Iran. It seems that it would be difficult for the U.S. government to accept this cyberattack as merely a legal form of protest.

Since Anonymous doesn't have any particular structure or leader, it's unclear who in the movement actually sent in this petition and agrees with what it's asking of the government. So far, the request has gained little traction. It needs 25,000 signatures just for Obama to respond, and as of this writing it has only 729 signatures.

Whether Anonymous gets the ear of Obama or not, it's looking like the group's DDoS attacks will continue. Earlier this month, Anonymous announced, "Expect us 2013," and said that it has no plans of slowing down. "We are still here," it warned.

Read More..

Embryonic Sharks Freeze to Avoid Detection

Jane J. Lee


Although shark pups are born with all the equipment they'll ever need to defend themselves and hunt down food, developing embryos still stuck in their egg cases are vulnerable to predators. But a new study finds that even these baby sharks can detect a potential predator, and play possum to avoid being eaten.

Every living thing gives off a weak electrical field. Sharks can sense this with a series of pores—called the ampullae of Lorenzini—on their heads and around their eyes, and some species rely on this electrosensory ability to find food buried in the seafloor. (See pictures of electroreceptive fish.)

Two previous studies on the spotted catshark (Scyliorhinus canicula) and the clearnose skate (Raja eglanteria)—a relative of sharks—found similar freezing behavior in their young. But new research by shark biologist and doctoral student Ryan Kempster at the University of Western Australia has given scientists a more thorough understanding of this behavior.

It all started because Kempster wanted to build a better shark repellent. Since he needed to know how sharks respond to electrical fields, Kempster decided to use embryos. "It's very hard to test this in the field because you need to get repeated responses," he said. And you can't always get the same shark to cooperate multiple times. "But we could use embryos because they're contained within an egg case."

Cloaking Themselves

So Kempster got his hands on 11 brownbanded bamboo shark (Chiloscyllium punctatum) embryos and tested their reactions to the simulated weak electrical field of a predator. (Popular pictures: Bamboo shark swallowed whole—by another shark.)

In a study published today in the journal PLoS One, Kempster and his colleagues report that all of the embryonic bamboo sharks, once they reached later stages of development, reacted to the electrical field by ceasing gill movements (essentially, holding their breath), curling their tails around their bodies, and freezing.

A bamboo shark embryo normally beats its tail to move fresh seawater in and out of its egg case. But that generates odor cues and small water currents that can give away its position. The beating of its gills as it breathes also generates an electrical field that predators can use to find it.

"So it cloaks itself," said neuroecologist Joseph Sisneros, at the University of Washington in Seattle, who was not involved in the study. "[The embryo] shuts down any odor cues, water movement, and its own electrical signal."

Sisneros, who conducted the previous clearnose skate work, is delighted to see that this shark species also reacts to external electrical fields and said it would be great to see whether this is something all shark, skate, and ray embryos do.

Marine biologist Stephen Kajiura, at Florida Atlantic University, is curious to know how well the simulated electrical fields compare to the bamboo shark's natural predators—the experimental field was on the higher end of the range normally given off.

"[But] they did a good job with [the study]," Kajiura said. "They certainly did a more thorough study than anyone else has done."

Electrifying Protection?

In addition to the freezing behavior he recorded in the bamboo shark embryos, Kempster found that the shark pups remembered the electrical field signal when it was presented again within 40 minutes and that they wouldn't respond as strongly to subsequent exposures as they did initially.

This is important for developing shark repellents, he said, since some of them use electrical fields to ward off the animals. "So if you were using a shark repellent, you would need to change the current over a 20- to 30-minute period so the shark doesn't get used to that field."

Kempster envisions using electrical fields to not only keep humans safe but to protect sharks as well. Shark populations have been on the decline for decades, due partly to ending up as bycatch, or accidental catches, in the nets and on the longlines of fishers targeting other animals.

A 2006 study estimated that as much as 70 percent of landings, by weight, in the Spanish surface longline fleet were sharks, while a 2007 report found that eight million sharks are hooked each year off the coast of southern Africa. (Read about the global fisheries crisis in National Geographic magazine.)

"If we can produce something effective, it could be used in the fishing industry to reduce shark bycatch," Kempster said. "In [America] at the moment, they're doing quite a lot of work trying to produce electromagnetic fish hooks." The eventual hope is that if these hooks repel the sharks, they won't accidentally end up on longlines.


Read More..

Flu Kills 4 Seniors, Sickens 700 in Boston













An early and nasty flu season has prompted a public health emergency in Boston, where health officials say 700 people have been diagnosed with the cold-weather virus. Four Bostononians -- all elderly -- have died from flu.


"This is the worst flu season we've seen since 2009, and people should take the threat of flu seriously," Boston Mayor Thomas Menino said in a statement.


This time last year the city had seen only 70 cases of influenza, The Associated Press reported. And with flu activity likely to extend into March or even April, the number will only grow.


Menino said the city is working with health care centers to offer free flu vaccines, and he urged anyone with flu-like symptoms to stay home from work or school.


"This is not only a health concern, but also an economic concern for families," he said in the statement. "I'm urging residents to get vaccinated if they haven't already."


Eighteen people have died from flu in Massachusetts, one of 41 states battling widespread influenza outbreaks. Emergency rooms across the country have been overwhelmed with flu patients, turning away some of them and others with non-life-threatening conditions for lack of space.


The proportion of people seeing their doctor for flu-like symptoms jumped to 5.6 percent from 2.8 percent in the past month, according to the CDC.








U.S. Emergency Rooms Inundated With Flu Patients Watch Video









Earliest Flu Season in a Decade: 80 Percent of Country Reports Severe Symptoms Watch Video







Northwestern Memorial Hospital in Chicago reported a 20 percent increase in flu patients every day. Northwestern Memorial was one of eight hospitals on bypass Monday and Tuesday, meaning it asked ambulances to take patients elsewhere if they could do so safely.


Dr. Besser's Tips to Protect Yourself From the Flu


Most of the hospitals have resumed normal operations, but could return to the bypass status if the influx of patients becomes too great.


"Northwestern Memorial Hospital is an extraordinarily busy hospital, and oftentimes during our busier months, in the summer, we will sometimes have to go on bypass," Northwestern Memorial's Dr. David Zich said. "We don't like it, the community doesn't like it, but sometimes it is necessary."


A tent outside Lehigh Valley Hospital in Salisbury Township, Pa., was set up to tend to the overflowing number of flu cases.


A hospital in Ohio is requiring patients with the flu to wear masks to protect those who are not infected.


State health officials in Indiana have reported seven deaths. Five of the deaths occurred in people older than 65 and two younger than 18. The state will release another report later today.


Doctors are especially concerned about the elderly and children, where the flu can be deadly.


"Our office in the last two weeks has exploded with children," Dr. Gayle Smith, a pediatrician in Richmond, Va., said


It is the earliest flu season in a decade and, ABC News Chief Medical Editor Dr. Besser says, it's not too late to protect yourself from the outbreak.


"You have to think about an anti-viral, especially if you're elderly, a young child, a pregnant woman," Besser said.


"They're the people that are going to die from this. Tens of thousands of people die in a bad flu season. We're not taking it serious enough."



Read More..

Pruney fingers give us better grip underwater









































WHY do our fingers do prune impressions when soaked? It could be an adaptation that gives us better grip underwater.












Fingers and toes wrinkle in water after about 5 minutes due to the constriction of blood vessels. This reduction in volume pulls the skin inward, but as the skin's surface area cannot change, it wrinkles. A study in 2011 showed that wrinkles form a pattern of channels that divert water away from the fingertip – akin to rain treads on tyres. The team thought that this could aid grip.












To find out, Tom Smulders and his team at Newcastle University, UK, timed people as they transferred wet or dry objects from one box to another with and without wrinkled fingers.












With wrinkles, wet objects were transferred about 12 per cent faster than with unwrinkled fingers. The time it took to transfer dry objects was the same regardless of wrinkles.












So why aren't our digits always prune-like? "With wrinkles, less of your skin surface touches the object, so there may be issues of sensitivity," Smulders suggests.












Journal reference: Royal Society Biology Letters, DOI: 10.1098/rsbl.2012.0999.




















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.









































































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Cool change aids Australia firefighters






SYDNEY: Cooler conditions helped firefighters battling blazes across Australia Wednesday but up to 30 were still out of control, destroying a handful of homes and killing thousands of livestock.

After facing one of the highest-risk fire days in its history on Tuesday, residents in hard-hit New South Wales state woke to shifting winds that caused temperatures to drop significantly.

While the mercury topped 42 degrees Celsius (107.6 F) in Sydney on Tuesday, it was forecast to peak at just 25 degrees Wednesday, while the Victorian capital Melbourne was down to 20.

The ratings on many bushfires were downgraded with none now at the "catastrophic" level which signifies fires will be uncontrollable, unpredictable and fast-moving, and evacuation the only safe option.

But NSW Rural Fire Service commissioner Shane Fitzsimmons warned against complacency, with new fronts breaking out despite the colder weather and a total fire ban still in place.

"It is far from over when it comes to the threat to New South Wales," he told reporters in Bookham, a small village in Yass Shire west of Canberra where a fire has so far burnt out 16,000 hectares (40,000 acres).

"We need to sustain the vigilance today. We are not out of the woods yet, the risk is very real and there's a long day ahead and a forecast for a return to hot conditions toward the weekend and into next week."

More than 2,000 firefighters worked through the night tackling more than 140 blazes across New South Wales, Australia's most populous state, with 30 of those uncontained.

One home was earlier believed to have been lost in the state, at Jugiong, but Fitzsimmons said it now appeared to be an outbuilding or shed.

"It's a tribute to firefighters across the state that we haven't got any homes destroyed," he said.

"But we've seen significant agricultural losses already been tallied up, thousands of hectares of pasture and crops, and stock in the thousands lost."

New South Wales Premier Barry O'Farrell said an estimated 10,000 sheep had perished in the Yass area alone.

Wildfires are a fact of life in arid Australia, where 173 people perished in the 2009 Black Saturday firestorm, the nation's worst natural disaster of modern times.

Most are ignited naturally, but in Sydney's west three teenage boys were charged with deliberately lighting a fire in bushland on Tuesday.

Victoria state has also been experiencing extreme conditions with four homes destroyed and six people treated for minor burns or smoke inhalation in a bushfire in the farming community of Carngham, which was evacuated.

Authorities said the fire was now under control.

Prime Minister Julia Gillard said the federal and state governments were working together in the recovery effort and to support victims.

"Firstly, it's all hands on deck fighting the fires, dealing with the emergency, and then we move into the recovery phase," she said.

No deaths have so far been reported.

While it was initially believed as many as 100 people could be missing in the southern island of Tasmania after wildfires razed more than 100 homes over the weekend, police said there was confusion about movements during the crisis.

"We know there have been no significant injuries, which is amazing, and we are encouraged that we haven't found any human remains at this stage," Tasmanian acting police commissioner Scott Tilyard told Sky News.

Much of southern Australia has been enduring a summer heatwave and in the nation's arid centre the popular tourist resort of Kings Canyon south of Alice Springs was damaged after a blaze spread from the Watarrka National Park.

-AFP/ac



Read More..