A team of researchers claim they can identify Twitter account activity that's posted by bots through their new web portal -- "Bot or Not?" -- leveraging "more than a thousand features extracted from public data and meta-data." And it turns out there are a lot of bots. An anonymous reader writes: "A study released by the University of Southern California reports that roughly nine to 15 percent of Twitter accounts...are so-called bots controlled by software instead of humans," according to CBS News. "Twitter boasts 319 monthly active users meaning that this recent revelation equates to nearly 48 million bot accounts, according the university's high-end figure." CNBC adds that "The research could be troubling news for Twitter, which has struggled to grow its user base in the face of growing competition from Facebook, Instagram, Snapchat and others." In a 2014 SEC filing Twitter admitted that between 5 and 8% of their users were bots.
Twitter's response to this new report? "Many bot accounts are extremely beneficial, like those that automatically alert people of natural disasters ... or from customer service points of view."

Currently, California law requires that all self-driving cars used for testing purposes be done with a human behind the wheel, so that they can take control if necessary. While California has been fairly strict on how self-driving cars are to be used in the state, they appear to be relaxing several of the rules. "The state's Department of Motor Vehicles released proposed regulations Friday for autonomous vehicles, dropping an earlier requirement that a human driver had to be present while testing on public roads," reports Bloomberg. "The DMV also backed down on a previous rule that vehicles needed a steering wheel and pedals for the operator to take back control." From the report: "When we think of driverless vehicles they can either have conventional controls, which are steering wheels, pedals, things like that, or they cannot," said California DMV Chief Counsel Brian Soublet during a conference call with reporters. If companies test vehicles without conventional controls, they have to show the California DMV that they have approval from the National Highway Traffic Safety Administration, he added. NHTSA said in early 2016 that self-driving software systems, not just humans, can be considered drivers. "If California was going to keep that level of development activity in the state, what they did was necessary and timely," said Eric Noble, president of The CarLab, an automotive consulting firm. "They kind of had to do it because at some point manufacturers can't move autonomous vehicles forward without getting controls out of cars." The proposed regulations have a 45-day public comment period that ends April 24. That will be followed by a public hearing. During Friday's conference call, the California DMV said the rules should be completed by the end of the year.

New submitter drunkdrone quotes a report from International Business Times: The U.S. Military has a new firearm in its itinerary: Meet RAMBO, the 3D printed grenade launcher that could revolutionize the way soldiers are equipped for battle. RAMBO, or the Rapid Additively Manufactured Ballistics Ordnance to give it its proper name, is based on the U.S. Army's M203 underslung grenade launcher for firearms including the M16 and M4A1 carbine. But RAMBO is unique in that all of its parts save for the springs and fasteners have been produced by 3D printing -- and that includes the grenades themselves. The breech-loaded grenade launcher consists of 50 individual parts, the majority of which were developed through the additive manufacturing process. Additive manufacturing is a form of 3D printing whereby layers of material, commonly photopolymer resin, are printed on top of each other to create a 3D object. During testing, RAMBO successfully fired 15 shots without showing any sign of deterioration. The ammunition itself was also 3D printed, based on the M781 40mm training round. U.S. Army researchers selected this particular round because it doesn't require any explosive propellants, the use of which are have not been proved safe with 3D printed objects.

Heffenfeffer writes: Russian company Apis Cor has manufactured a 3D printed concrete house on-site in 24 hours in Stupino Town, Russia. Using a tower crane-shaped concrete extruder that can rotate 360 degrees, the 38 square meter (408.88 square foot) rotor-shaped home walls were constructed in one day. Voids left in the manufacturing process were filled by hand, installing windows, doors, and adding polyurethane and fiber insulation to the hollow concrete walls. The roof was also constructed by hand using polymer membranes, welded together using hot air and special equipment. Total construction costs were $10,134 (USD), approximately $266.66 per square meter ($24.78 per square foot). They also constructed a temporary protective heated tent to surround the house as they constructed the house during winter. Though the printer can be used at temperatures down to -35C, concrete has to be at least +5C to cure. Further reading: Designboom Magazine

After WikiLeaks revealed data exposing information about the CIA's arsenal of hacking tools, Intel Security has released a tool that allows users to check if their computer's low-level system firmware has been modified and contains unauthorized code. PCWorld reports: The release comes after CIA documents leaked Tuesday revealed that the agency has developed EFI (Extensible Firmware Interface) rootkits for Apple's Macbooks. The documents from CIA's Embedded Development Branch (EDB) mention an OS X "implant" called DerStarke that includes a kernel code injection module dubbed Bokor and an EFI persistence module called DarkMatter. In addition to DarkMatter, there is a second project in the CIA EDB documents called QuarkMatter that is also described as a "Mac OS X EFI implant which uses an EFI driver stored on the EFI system partition to provide persistence to an arbitrary kernel implant." The Advanced Threat Research team at Intel Security has created a new module for its existing CHIPSEC open-source framework to detect rogue EFI binaries. CHIPSEC consists of a set of command-line tools that use low-level interfaces to analyze a system's hardware, firmware, and platform components. It can be run from Windows, Linux, macOS, and even from an EFI shell. The new CHIPSEC module allows the user to take a clean EFI image from the computer manufacturer, extract its contents and build a whitelist of the binary files inside. It can then compare that list against the system's current EFI or against an EFI image previously extracted from a system.

futuristicrabbit writes: AMD has faced calls from Edward Snowden, Libreboot and the Reddit community to release the source code to the AMD Secure Processor (PSP), a network-capable co-processor which some believe has the capacity to act as a backdoor. Opening the PSP would not only have security benefits, but would provide AMD with a competitive advantage against rival chipmaker Intel. Lisa Su, the CEO of AMD, is reportedly seriously considering the change, and the community is working hard to make sure she makes the right decision. In an AMD AMA post via Reddit, user 1n5aN1aC provided several arguments for why the company should release the PSP source code to the Coreboot / Libreboot project (or publicly). The arguments center around security, economic incentives, advertising, brand perception, and mindshare. AMD replied: "Thanks for the inquiry. Currently we do not have plans to release source code but you make a good argument for reasons to do so. We will evaluate and find a way to work with security vendors and the community to everyone's benefit." The product manager for AMD, AMD_james, continued in response to a follow-up comment that claims AMD is "not considering it all but only want to appease the potential buyers." AMD_james replied: "Thanks for the feedback. Please believe me that this has CEO level attention and AMD is investigating the steps and resources necessary to support this. It is not the work of a minute, so please bear with us as we define what we can do." What are your arguments for (or against) the idea of AMD releasing the source code to the AMD Secure Processor?

An anonymous reader shares a report on The Guardian: Elon Musk, the billionaire founder of electric car giant Tesla, has thrown down a challenge to the South Australian and federal governments, saying he can solve the state's energy woes within 100 days -- or he'll deliver the 100MW battery storage system for free. On Thursday, Lyndon Rive, Tesla's vice-president for energy products, told the AFR the company could install the 100-300 megawatt hours of battery storage that would be required to prevent the power shortages that have been causing price spikes and blackouts in the state. Thanks to stepped-up production out of Tesla's new Gigafactory in Nevada, he said it could be achieved within 100 days. Mike Cannon-Brookes, the Australian co-founder of Silicon Valley startup Atlassian, on Friday tweeted Elon Musk, asking if Tesla was serious about being able to install the capacity. Musk replied that the company could do it in 100 days of the contract being signed, or else provide it free, adding: "That serious enough for you?"

MojoKid writes from a report via HotHardware: NVIDIA is officially launching its most powerful gaming graphics card today, the GeForce GTX 1080 Ti. It was announced last week at the Game Developers Conference and pre-orders began shortly thereafter. However, the cards will begin shipping today and NVIDIA has lifted the veil on performance reviews. Though its memory complement and a few blocks within the GPU are reduced versus NVIDIA's previous top-end card, the Titan X, the GeForce GTX 1080 Ti makes up for its shortcomings with a combination of refinement and the brute force of higher memory clocks, based on new and improved Micron GDDR5X memory, faster core clocks and an improved cooler. For gamers, the good news is, the 1080 Ti retails for $699, versus $1200 for the Titan X, and it is in fact faster, for the most part. Throughout a battery of game tests and benchmarks, regardless of the resolution or settings used, the GeForce GTX 1080 Ti performed on par with or slightly faster than the NVIDIA Titan X and roughly 30-35% better than the standard GeForce GTX 1080 Founders Edition. Versus AMD's current flagship GPU, the Radeon R9 Fury X, there is no competition; the GeForce GTX 1080 Ti was nearly 2x faster than the Fury X in some cases.

An anonymous reader quotes a report from The Guardian: After spending six weeks cultivating an internal "memory palace," people more than doubled the number of words they could retain in a short time period and their performance remained impressive four months later. The technique, which involves conjuring up vivid images of objects in a familiar setting, is credited to the Greek poet Simonides of Ceos, and is a favored method among so-called memory athletes. The study also revealed that after just 40 days of training, people's brain activity shifted to more closely resemble that seen in some of the world's highest ranked memory champions, suggesting that memory training can alter the brain's wiring in subtle but powerful ways. The study, published in the journal Neuron, recruited 23 of the 50 top-scoring memory athletes in an annual contest called the World Memory Championships. The athletes were given 20 minutes to recall a list of 72 random nouns and they scored, on average, nearly 71 of the 72 words. By contrast, an untrained control group recalled an average of 26 words. This group then followed a daily 30-minute training regime where they practiced walking through a chosen familiar environment, such as their own home, and placing objects in specific locations. After 40 days of 30-minute training sessions, the participants who had average memory skills at the start more than doubled their memory capacity, recalling 62 words on average -- and four months later, without continued training, they could remember 48 words from a list of 72.

Google is making CAPTCHAs invisible using "a combination of machine learning and advanced risk analysis that adapts to new and emerging threats." Ars Technica reports: The old reCAPTCHA system was pretty easy -- just a simple "I'm not a robot" checkbox would get people through your sign-up page. The new version is even simpler, and it doesn't use a challenge or checkbox. It works invisibly in the background, somehow, to identify bots from humans. Google doesn't go into much detail on how it works, only saying that the system uses "a combination of machine learning and advanced risk analysis that adapts to new and emerging threats." More detailed information on how the system works would probably also help bot-makers crack it, so don't expect details to pop up any time soon. When sites switch over to the invisible CAPTCHA system, most users won't see CAPTCHAs at all, not even the "I'm not a robot" checkbox. If you are flagged as "suspicious" by the system, then it will display the usual challenges.

Sony has officially pushed out the PlayStation 4.5 System Update, codenamed "Susuke," which brings a new Boost Mode for PS4 Pro owners and lets PS4 owners download and install games directly to USB 3.0 hard drives up to 8TB in size. The INQUIRER reports: PS4 Pro owners are also being treated to a new Boost Mode, will offer improved performance for PS4 games released before the Pro console. "This feature has been designed to provide better performance for select legacy titles that have not been patched to take advantage of the PS4 Pro's faster CPU and its faster and double-sized GPU," Sony said in a blog post. "This can provide a noticeable frame rate boost to some games with variable frame rates, and can provide frame rate stability for games that are programmed to run at 30 Hz or 60 Hz." The PS 4.5 update brings an improved 2D mode to owners of Sony's PlayStation VR headset, which the firm claims will improve the resolution of the system screen displayed on your TV is significantly better when you're out of VR mode. The resolution of Cinematic Mode on PlayStation VR is also getting a boost, with Sony noting "if your PS VR screen size is set to Small or Medium, the frame rate of content viewed in Cinematic Mode goes up from 90Hz to 120Hz with this update." Other new features include added support for voice chat when using Remote Play on Windows, Mac or an Xperia device, an 'Off Console' icon that tells gamers when a friend is logged in but away from their device and updates to the PS Messages and PS Communities apps on iOS and Android.

sciencehabit writes from a report via Science Magazine: Scientists have trained a quantum computer to recognize trees. That may not seem like a big deal, but the result means that researchers are a step closer to using such computers for complicated machine learning problems like pattern recognition and computer vision. The team fed hundreds of NASA satellite images of California into a D-Wave 2X processor, and asked the computer to consider dozens of features -- hue, saturation, even light reflectance -- to determine whether clumps of pixels were trees as opposed to roads, buildings, or rivers. They then told the computer whether its classifications were right or wrong so that the computer could learn from its mistakes, tweaking the formula it uses to determine whether something is a tree. After it was trained, the D-Wave was 90% accurate in recognizing trees in aerial photographs of Mill Valley, California. The results demonstrate how scientists can program quantum computers to 'look' at and analyze images, and opens up the possibility of using them to solve other complex problems that require heavy data crunching.

In an experiment published today in Nature, IBM researchers have managed to read and write data to a single atom. A previous atomic storage technique, as mentioned by TechCrunch, doesn't actually store data in the atom, but moves them around to form readable patterns. "This means that imbuing individual atoms with a 0 or 1 is the next major step forward and the next major barrier in storing data digitally, both increasing capacity by orders of magnitude and presenting a brand new challenge to engineers and physicists," reports TechCrunch. From the report: It works like this: A single Holmium atom (a large one with many unpaired electrons) is set on a bed of magnesium oxide. In this configuration, the atom has what's called magnetic bistability: It has two stable magnetic states with different spins (just go with it). The researchers use a scanning tunneling microscope (also invented at IBM, in the 1980s) to apply about 150 millivolts at 10 microamps to the atom -- it doesn't sound like a lot, but at that scale, it's like a lightning strike. This huge influx of electrons causes the Holmium atom to switch its magnetic spin state. Because the two states have different conductivity profiles, the STM tip can detect which state the atom is in by applying a lower voltage (about 75 millivolts) and sensing its resistance. In order to be absolutely sure the atom was changing its magnetic state and this wasn't just some interference or effect from the STM's electric storm, the researchers set an iron atom down nearby. This atom is affected by its magnetic neighborhood, and acted differently when probed while the Holmium atom was in its different states. This proves that the experiment truly creates a lasting, stored magnetic state in a single atom that can be detected indirectly. And there you have it: a single atom used to store what amounts to a 0 or a 1. The experimenters made two of them and zapped them independently to form the four binary combinations (00,01,10,11) that two such nodes can form.

An anonymous reader quotes a report from Engadget: The Kapaia project is a combination 13MW SolarCity solar farm and 53MWh Tesla Powerpack station on the island of Kauai. In partnership with the KIUC (Kauai Island Utility Cooperative) the project will store the sun's energy during the day and release it at night. The station (along with Kauai's other renewable resource solutions including wind and biomass) won't completely keep the island from using fossil fuels but it will temper the need. In addition to using Tesla's station to battle the island's incredibly high electric bills, it's also part of a long-term Hawaii-state plan to be completely powered by renewable energy sources by 2045. Kauai has its own goal of using 70 percent renewable energy by 2030. With this project the island is getting closer to that goal and can now produce 100 percent of the energy it needs during high usage mid days and low loads via renewables during a brief period of time. The island state doesn't have the benefit of a massive grid like the mainland to pull electricity from sources hundreds of miles away. Instead each island has to take care of its own energy solutions. According to Tesla and the KIUC, the 45 acre Kapaia project will reduce the use of fossil fuels by 1.6 million gallons a year. You can view Tesla's Powerpack and solar farm on Kauai here.

AmiMoJo quotes a report from Phys.Org: Norway, which already boasts the world's highest number of electric cars per capita, said Monday that electric or hybrid cars represented half of new registrations in the country so far this year. Sales of electric cars accounted for 17.6 percent of new vehicle registrations in January and hybrid cars accounted for 33.8 percent, for a combined 51.4 percent, according to figures from the Road Traffic Information Council (OVF). In February, those proportions fell slightly but remained high at 15.8 percent and 32 percent, respectively. While cars with combustion engines are heavily taxed, electric vehicles are exempt from almost all taxes. Their owners also benefit from numerous advantages such as free access to toll roads, ferries and parking at public car parks, as well as the possibility of driving in bus lanes.

An anonymous reader quotes a report from USA Today: Apple says many of the vulnerabilities to its devices and software that came to light in WikiLeaks' revelations of CIA cyber weapons were already fixed in its latest updates. Late Tuesday, Apple emailed the following statement to USA TODAY: "Apple is deeply committed to safeguarding our customers' privacy and security. The technology built into today's iPhone represents the best data security available to consumers, and we're constantly working to keep it that way. Our products and software are designed to quickly get security updates into the hands of our customers, with nearly 80 percent of users running the latest version of our operating system. While our initial analysis indicates that many of the issues leaked today were already patched in the latest OS, we will continue work to rapidly address any identified vulnerabilities. We always urge customers to download the latest iOS to make sure they have the most recent security updates." For its part, Samsung emailed its own statement Wednesday: "Protecting consumers' privacy and the security of our devices is a top priority at Samsung. We are aware of the report in question and are urgently looking into the matter."

Mary Jo Foley, writing for ZDNet: There have been rumors for the past several years that Windows Server would be coming to ARM. Today, March 8, that rumor became an acknowledged reality. Microsoft officials said that the company is committed to use ARM chips in machines running its cloud services. Microsoft will use the ARM chips in a cloud server design that its officials will detail at the the US Open Compute Project Summit today, March 8. Microsoft has been working with both Qualcomm and Cavium on the version of Windows Server for ARM, according to company officials. From a report on Bloomberg: Intel chips have remained one of the sole big-name products widely in use. Microsoft's work with ARM, in progress for several years, could pave the way for a real challenge to Intel, which controls more than 99 percent of the market for server chips. [...] Any challenge to Intel's dominance in server chips is a threat to its most profitable business and main revenue driver as demand for PC processors continues to shrink. The company's Data Center Group turned $17.2 billion of sales into $7.5 billion of operating profit in 2016, and Intel has been running ads that say, "98 percent of the cloud runs on Intel."

At this year's Geneva Motor Show, Airbus has revealed a concept design created in partnership with Italdesign. "The demonstration vehicle offers modular functionality, meaning it can operate both on the ground and in the air, and Airbus thinks it's one potential answer to the growing problem of urban traffic congestion," reports TechCrunch. From the report: The concept vehicle is intended to work with others to form a network that can be summoned on demand, with passengers hailing a ride from an app on their mobile device. The capsule-based design can connect to either ground or air conveyance modules, letting customers specify their preferred method of transit. It's also designed to be used in concert with other existing transportation methods for maximum efficiency. Airbus and Italdesign call their creation the "Pop.Up System," which includes the artificial intelligence platform that uses what it knows about any individual user, and available routes and transit options to determine the best travel options. The main vehicle itself is a passenger capsule, which holds the rider and which can be paired with either ground and air modules, as well as, Airbus suggests, with hyperloop systems down the line once that tech becomes more widely available. There's a third part of Pop.Up that ensures this whole project touches all bases when it comes to current tech hype -- an interface that will respond and interact with the user in a "fully virtual environment" while in transit. They've thought of everything.

MojoKid writes: AMD lifted the veil this morning on architecture details and performance expectations of its next generation Zen-based server platform, codenamed Naples. Naples is an up to 32-core, 64-thread variant of Zen, targeted at enterprise and data center applications. The processors will feature eight-channel DDR4 memory controllers (with up to 16 DIMMs attached per CPU), with support for up to 4TB of memory and 128 lanes of on-chip PCI Express connectivity. In a 2P (dual processor/dual socket) configuration, Naples offers up to 64 physical cores (128 threads), access to 32 DIMM slots, and aggregate 16 memory channels. Versus a 2P Intel Xeon E5-2699A V4 based server, the 2P Naples setup ends up with double the memory channels, a higher total memory capacity, more cores (20 more physical cores, 40 more threads), and 48 more available PCI Express lanes. AMD's performance comparisons at its tech day event pit a 2P Naples server with 512GB of DDR4 RAM up against a 2P Intel Xeon E4-2699A V4 configuration with 384GB of RAM. The Naples system had a higher memory capacity and that memory was clocked much higher too -- 2400MHz versus 1866MHz. The Naples system has more cores, and with SMT on, can ultimately process more threads as a result. The AMD Naples system also has double the memory channels, further improving peak memory bandwidth. In its demos, AMD used a seismic analysis workload, which involved multiple iterations of 3D wave equations. According to AMD, the test taxes the entire system, including CPU cores, memory and I/O. In this demo, the AMD server system completed equations roughly 2.5x faster than the dual-socket Intel Xeon server. Expected price points weren't given, but Naples processors and servers should be available in Q2 this year.

BarbaraHudson writes: Bloomberg is reporting that the "new" RadioShack is preparing to file for bankruptcy. From the report: "General Wireless Operations, the RadioShack successor created by a partnership between Sprint Corp. and the defunct retailer's owners, is preparing to file for bankruptcy, according to people familiar with the matter. A filing could happen within the coming days and will probably result in liquidation, said the people, who asked not to be identified because the process isn't public. The beleaguered company, which does business as RadioShack, operates outlets that share space with Sprint's retail locations, as well as franchising the name to other stores." Investors had thrown $75 million in lines of credit and term loans at the business, which was used for "renovated locations and updated inventory." That's less than $60,000 per store -- chickenfeed in today's world, where renovating a McDonalds can run between $500,000 and $2,000,000, and you're not trying to pivot.