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Archivo del Autor: Belen De Leon

Why a Golf Ball Compresses Like a Spring—Until It Shatters

An experiment with a paperclip reveals both its elastic and plastic properties, a distinction that’s key to how any material compresses or deforms.
Source: Wired

Facebook introduces ‘one strike’ policy to combat abuse of its live-streaming service

Facebook is cracking down on its live streaming service after it was used to broadcast the shocking mass shootings that left 50 dead at two Christchurch mosques in New Zealand in March. The social network said today that it is implementing a ‘one strike’ rule that will prevent users who break its rules from using the Facebook Live service.

“From now on, anyone who violates our most serious policies will be restricted from using Live for set periods of time — for example 30 days — starting on their first offense. For instance, someone who shares a link to a statement from a terrorist group with no context will now be immediately blocked from using Live for a set period of time,” Facebook VP of integrity Guy Rosen wrote.

The company said it plans to implement additional restrictions for these people, which will include limiting their ability to take out ads on the social network. Those who violate Facebook’s policy against “dangerous individuals and organizations” — a new introduction that it used to ban a number of right-wing figures earlier this month — will be restricted from using Live, although Facebook isn’t being specific on the duration of the bans or what it would take to trigger a permanent bar from live-streaming.

Facebook is increasingly using AI to detect and counter violent and dangerous content on its platform, but that approach simply isn’t working.

Beyond the challenge of non-English languages — Facebook’s AI detection system has failed in Myanmar, for example, despite what CEO Mark Zuckerberg had claimedthe detection system wasn’t robust in dealing with the aftermath of Christchurch.

The stream itself was not reported to Facebook until 12 minutes after it had ended, while Facebook failed to block 20 percent of the videos of the live stream that were later uploaded to its site. Indeed, TechCrunch found several videos still on Facebook more than 12 hours after the attack despite the social network’s efforts to cherry pick ‘vanity stats’ that appeared to show its AI and human teams had things under control.

Acknowledging that failure indirectly, Facebook said it will invest $7.5 million in “new research partnerships with leading academics from three universities, designed to improve image and video analysis technology.”

Early partners in this initiative include The University of Maryland, Cornell University and The University of California, Berkeley, which it said will assist with techniques to detect manipulated images, video and audio. Another objective is to use technology to identify the difference between those who deliberately manipulate media, and those who so “unwittingly.”

Facebook said it hopes to add other research partners to the initiative, which is also focused on combating deepfakes.

“Although we deployed a number of techniques to eventually find these variants, including video and audio matching technology, we realized that this is an area where we need to invest in further research,” Rosen conceded in the blog post.

Facebook’s announcement comes less than one day after a collection of world leaders, including New Zealand Prime Minister Jacinda Ardern, called on tech companies to sign a pledge to increase their efforts to combat toxic content.

According to people working for the French Economy Ministry, the Christchurch Call doesn’t contain any specific recommendations for new regulation. Rather, countries can decide what they mean by violent and extremist content.

“For now, it’s a focus on an event in particular that caused an issue for multiple countries,” French Digital Minister Cédric O said in a briefing with journalists.


Source: TechCrunch

Huawei launches AI-backed database to target enterprise customers

China’s Huawei is making a serious foray into the enterprise business market after it unveiled a new database management product on Wednesday, putting it in direct competition with entrenched vendors like IBM, Oracle and Microsoft.

The Shenzhen-based company, best known for making smartphones and telecom equipment, claims its newly minted database uses artificial intelligence capabilities to improve tuning performance, a process that traditionally involves human administrators, by over 60 percent.

Called the GaussDB, the database works both locally as well as on public and private clouds. When running on Huawei’s own cloud, GaussDB provides data warehouse services for customers across the board, from the financial, logistics, education to automotive industries.

The database launch was first reported by The Information on Tuesday citing sources saying it is designed by the company’s secretive database research group called Gauss and will initially focus on the Chinese market.

The announcement comes at a time when Huawei’s core telecom business is drawing scrutiny in the West over the company’s alleged ties to the Chinese government. That segment accounted for 40.8 percent of Huawei’s total revenues in 2018, according to financial details released by the privately-held firm.

Huawei’s consumer unit, which is driven by its fast-growing smartphone and device sales, made up almost a half of the company’s annual revenues. Enterprise businesses made up less than a quarter of earnings, but Huawei’s new push into database management is set to add new fuel to the segment.

Meanwhile, at Oracle, more than 900 employees, most of whom worked for its 1,600-staff research and development center in China, were recently let go amid a major company restructuring, multiple media outlets reported earlier this month.

Data provided to TechCrunch by Boss Zhipin offers clues to the layoff: The Chinese recruiting platform has recently seen a surge in newly registered users who work at Oracle China. But the door is still open for new candidates as the American giant is currently recruiting for more than 100 positions through Boss, including many related to cloud computing.


Source: TechCrunch

Trump is reportedly preparing to sign an executive order that would enable a ban on Huawei in the US

As the trade war with China intensifies again, President Donald Trump is expected to sign an executive order that would make possible a ban on American companies from using telecommunications equipment from Huawei and other companies that the government believes pose a national security risk, Reuters reports.

The executive order cites the International Emergency Economics Power Act, a law enacted in 1977 that gives the President broad power to control trade in response to a national emergency. The order has been under consideration for a year, but repeatedly delayed, and may be delayed yet again, says Reuters. The Wall Street Journal first reported that the administration was considering executive actions in May 2018.

Specific companies are not named in the executive order, but it would likely affect Huawei because of longstanding concerns that the Chinese government can use its telecommunications equipment for spying. A House committee first labeled Huawei and ZTE as national security threats in 2012, accusations they have repeatedly denied. U.S. government agencies and contractors have already been banned from Huawei equipment since last year.

Huawei has come under even more scrutiny during the trade war, with Chinese officials accusing the U.S. of using Huawei as a bargaining chip. Chief financial officer Meng Wanzhou, the daughter of Huawei founder and CEO Ren Zhengfei, was arrested last year in Canada at the behest of the U.S. government and faces up to 30 years in prison on accusations of fraud. U.S. federal prosecutors have also charged Huawei with stealing trade secrets from T-Mobile.

Huawei is retaliating by suing the U.S. government, arguing that the ban on using its equipment by federal agencies and contractors violated due process and is unconstitutional.

A ban on American companies from using telecommunications equipment made by Huawei would impact wireless carriers as they prepare to launch 5G networks, in particular smaller, rural carriers that may have to spend millions of dollars to replace equipment that they have already installed.


Source: TechCrunch

Facebook to ban users from Live streaming if they violate community rules – CNET

A new one-strike policy comes after the livestreamed massacre in Christchurch.
Source: CNET

Volvo inks multi-billion dollar battery deals with LG Chem and CATL for EVs

Volvo Car Group has inked a massive multi-billion dollar supply deal with the Chinese battery manufacturer, CATL, and Korea’s LG Chem to supply its planned fleet of electric vehicles.

The lithium ion batteries from both suppliers will power the development of Volvo Cars’ electrification strategy for its own brand and the company’s Polestar joint venture with Chinese auto manufacturer Geely.

Deals with the two companies cover the global supply of battery modules for all models on the upcoming SPA2 and CMA modular vehicle platforms, Volvo said in a statement.

Back in 2017, Volvo . committed that all of its new vehicles launched after 2019 would be electrified and this marks a big step in making that commitment a reality, the company said.

Volvo expects 50 percent of its global sales volume from 2025 to be comprised of electric vehicles.

“The future of Volvo Cars is electric and we are firmly committed to moving beyond the internal combustion engine,” said Håkan Samuelsson, president and CEO of Volvo Cars, in a statement. “Today’s agreements with CATL and LG Chem demonstrate how we will reach our ambitious electrification targets.”

Volvo’s got one battery assembly line currently under construction at its manufacturing plant in Ghent, where it expects its first fully-electric XC40 small SUV to be rolling off the assembly line by the end of the year.

Earlier this year, Volvo revealed new electrified powertrain options for its entire model range. The company upgraded its T8 and . T6 Twin Engine plug-in hybrid powertrains and now has plug-in options for every model the company makes.

Just three months ago Volvo unveiled its first all-electric vehicle design for Polestar, its joint venture with Geely. And the Polestar 2 will be the first vehicle to reap the fruits of the battery supply agreement with LG and CATL.

The deals between Polestar and the battery makers cover the supply of lithium ion battery modules for the entire portfolio of Polestar vehicles over the next ten years, starting with its first fully electric car, the Polestar 2, in early 2020.

“With these suppliers in place we have the secure knowledge that our electric performance cars will be powered by high-quality batteries that our customers can rely on,” comments Thomas Ingenlath, Chief Executive Officer of Polestar.

This battery supply agreement comes as roadblocks have emerged to Polestar’s plans to sell its new electric vehicle in the U.S. as a direct competitor to Tesla’s Model 3.

Ingenlath told the Los Angeles Times that if the U.S. trade war with China lengthens, the company may have to scrap plans to sell in the U.S.

“We would embrace free trade as in the interests of the consumer,” Ingenlath told the LA Times in an interview. He said that the company wouldn’t export cars to countries where tariffs would make selling the vehicle impossible because it couldn’t be priced competitively.

Polestar would look to expand or contract its sales presence in the U.S. based on where tariffs land, the executive said. At current levels tariffs on cars manufactured in China are set at 25%.


Source: TechCrunch

Trump reportedly mulling order paving the way for Huawei ban – CNET

Executive order could come as early as this week, Reuters reports.
Source: CNET

George R.R. Martin goes full mad Targaryen over Game of Thrones rumors – CNET

Naturally.
Source: CNET

Twitter launches new search features to stop the spread of misinformation about vaccines

As measles outbreaks in the United States and other countries continue to get worse, Twitter is introducing new search tools meant to help users find credible resources about vaccines. It will also stop auto-suggesting search terms that would lead users to misinformation about vaccines.

In a blog post, Twitter vice president of trust and safety Del Harvey wrote “at Twitter, we understand the importance of vaccines in preventing illness and disease and recognize the role that Twitter plays in disseminating important public health information. We think it’s important to help people find reliable information that enhances their health and well-being.”

When users search for keywords related to vaccines, they will see a prompt that directs them to resources from Twitter’s information partners. In the U.S., this is Vaccines.gov, a website by the Department of Health and Human Services. A pinned tweet from one of Twitter’s partners will also appear.

One of Twitter's new tools to stop the spread of vaccine misinformation

One of Twitter’s new tools to stop the spread of vaccine misinformation

In addition to the U.S., the vaccine information tools will also appear on Twitter’s iOS and Android apps and its mobile site in Canada, the United Kingdom, Brazil, Korea, Japan, Indonesia, Singapore and Spanish-speaking Latin American countries.

Harvey wrote that Twitter’s vaccine information tools are similar to ones it launched for suicide and self-harm prevention last year. The company plans to launch similar features for other public health issues over the coming months, she added.

Earlier this week, the Centers for Disease Control and Prevention said measles cases in the U.S. had increased to 839. Cases have been reported in 23 states this year, with the majority—or almost 700—in New York.

Social media platforms have been criticized for not doing more to prevent the spread of misinformation about vaccines and, as measles cases began to rise, started taking measures. For example, YouTube announced earlier this year that it is demonetizing all anti-vaccine videos, while Facebook began downranking anti-vaccine content on its News Feed and hiding it on Instagram.


Source: TechCrunch

19K Google Home Minis given away at Warriors-Trail Blazers playoff game – CNET

Fans will also have a chance to win tickets to a future Warriors game.
Source: CNET

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