After 44 years, there's finally a better way to find approximate solutions to the notoriously difficult traveling salesperson problem. From a report: When Nathan Klein started graduate school two years ago, his advisers proposed a modest plan: to work together on one of the most famous, long-standing problems in theoretical computer science. Even if they didn't manage to solve it, they figured, Klein would learn a lot in the process. He went along with the idea. "I didn't know to be intimidated," he said. "I was just a first-year grad student -- I don't know what's going on." Now, in a paper posted online in July, Klein and his advisers at the University of Washington, Anna Karlin and Shayan Oveis Gharan, have finally achieved a goal computer scientists have pursued for nearly half a century: a better way to find approximate solutions to the traveling salesperson problem. This optimization problem, which seeks the shortest (or least expensive) round trip through a collection of cities, has applications ranging from DNA sequencing to ride-sharing logistics. Over the decades, it has inspired many of the most fundamental advances in computer science, helping to illuminate the power of techniques such as linear programming. But researchers have yet to fully explore its possibilities -- and not for want of trying. The traveling salesperson problem "isn't a problem, it's an addiction," as Christos Papadimitriou, a leading expert in computational complexity, is fond of saying. Most computer scientists believe that there is no algorithm that can efficiently find the best solutions for all possible combinations of cities. But in 1976, Nicos Christofides came up with an algorithm that efficiently finds approximate solutions -- round trips that are at most 50% longer than the best round trip. At the time, computer scientists expected that someone would soon improve on Christofides' simple algorithm and come closer to the true solution. But the anticipated progress did not arrive. "A lot of people spent countless hours trying to improve this result," said Amin Saberi of Stanford University. Now Karlin, Klein and Oveis Gharan have proved that an algorithm devised a decade ago beats Christofides' 50% factor, though they were only able to subtract 0.2 billionth of a trillionth of a trillionth of a percent. Yet this minuscule improvement breaks through both a theoretical logjam and a psychological one. Researchers hope that it will open the floodgates to further improvements.

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GameStop jumped as much as 27% after a strategic partnership with Microsoft gave investors fresh optimism that the video-game retailer can turn around its business. From a report: Under a multiyear agreement, GameStop will use Microsoft's cloud services to handle business operations, including finance, inventory and e-commerce, according to a statement Thursday. In-store workers also will use Microsoft Surface devices while they're helping customers. And GameStop will offer Xbox All Access, a monthly service for the Xbox gaming console. GameStop is expected to get a surge in sales when new video-game consoles arrive in coming weeks, and the Microsoft partnership could help them extend the momentum. A new Xbox and Sony PlayStation are debuting next month, which should drive traffic to GameStop's stores and e-commerce site.

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Yesterday's how to break up tech monopolies is getting a positive response. It's a good companion to the Google and HTTP faq.

Apple told CNBC that it will extend some Apple TV+ subscriptions on a free one-year trial for three additional months. From the report: When Apple TV+ launched last fall, Apple bundled a free one-year subscription with the purchase of an Apple product, immediately boosting the number of people who could watch the streaming service. The first of those trial subscriptions were previously going to expire at the start of November, meaning that people on the one-year trial who had not cancelled were going to be charged $4.99 per month for the streaming service. Now subscribers whose trial expires before February will get three additional months of Apple TV+ for free. This means that someone who bought an iPhone on December 1 and activated Apple TV+ on the same day will have access to the service through March 1, when billing starts. Apple has not revealed the number of Apple TV+ subscribers. The service has fewer TV shows and movies than rivals like Disney+, which surpassed 60 million subscribers in August after launching last November. Netflix has more than 190 million subscribers around the world, it said in July. But unlike those services, Apple TV+ doesn't have a back catalog of reruns.

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sciencehabit writes: OSIRIS-REx is ready to get the goods. On 20 October, after several years of patient study of its enigmatic target, NASA's $800 million spacecraft will finally stretch out its robotic arm, swoop to the surface of the near-Earth asteroid Bennu, and sweep up some dust and pebbles. The encounter, 334 million kilometers from Earth, will last about 10 seconds. If it is successful, OSIRIS-REx could steal away with up to 1 kilogram of carbon-rich material from the dawn of the Solar System for return to Earth in 2023. Since OSIRIS-REx (short for Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) arrived in 2018, Bennu has yielded surprises, not all of them welcome. The 500-meter-wide asteroid was not smooth, as expected, but studded with more than 200 large boulders that could upset the sampling maneuver. And every so often, the asteroid ejected coin-size pebbles, probably propelled by meteoroid impacts or solar heating. The boulder hazard, in particular, forced the team to target an area just 16 meters across for sampling, 10 times smaller than planned. "Bennu has not made things easy for us," says Mike Moreau, the mission's deputy project manager at NASA's Goddard Space Flight Center. Despite the logistical challenge, the boulders contain a prize: veins of carbonate minerals thicker than your hands, the team reports in one of six studies published today in Science and Science Advances. The minerals, which precipitate out of hot water, popped out of data gathered during a close flyby of light-colored boulders near the target site, called Nightingale. Researchers believe the veins grew in channels of fluid circulating within Bennu's parent body, a larger planetesimal thought to have formed beyond Jupiter's orbit soon after the dawn of the Solar System 4.56 billion years ago, before being smashed apart in the asteroid belt within the last billion years. Heat from the decay of radioactive elements in its interior presumably drove the churning, and the presence of so much carbonate "suggests large-scale fluid flow, possibly over the entire parent body," says Hannah Kaplan, a planetary scientist at Goddard who led the work. This ancient water world is consistent with the idea that objects like Bennu delivered much of Earth's water when they struck the planet billions of years ago, says Dante Lauretta, the mission's principal investigator and a planetary scientist at the University of Arizona. The veins also suggest watery bodies like Bennu were a cauldron for the organic chemistry that generated the amino acids and other unusual prebiotic compounds found in carbon-rich meteorites.

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An anonymous reader shares a report: On Tuesday, Congress revealed whether it thinks Amazon, Apple, Facebook, and Google are sitting on monopolies. In some cases, the answer was yes. But also, one app developer revealed to Congress that it -- just like WordPress -- had been forced to monetize a largely free app. That developer testified that Apple had demanded in-app purchases (IAP), even though Apple had approved its app without them two years earlier -- and that when the dev dared send an email to customers notifying them of the change, Apple threatened to remove the app and blocked all updates. That developer was ProtonMail, makers of an encrypted email app, and CEO Andy Yen had some fiery words for Apple in an interview with The Verge this week. We've known for months that WordPress and Hey weren't alone in being strong-armed by the most valuable company in the world, ever since Stratechery's Ben Thompson reported that 21 different app developers quietly told him they'd been pushed to retroactively add IAP in the wake of those two controversies. But until now, we hadn't heard of many devs willing to publicly admit it. They were scared. And they're still scared, says Yen. Even though Apple changed its rules on September 11th to exempt "free apps acting as a stand-alone companion to a paid web based tool" from the IAP requirement -- Apple explicitly said email apps are exempt -- ProtonMail still hasn't removed its own in-app purchases because it fears retaliation from Apple, he says. He claims other developers feel the same way: "There's a lot of fear in the space right now; people are completely petrified to say anything." [...] "For the first two years we were in the App Store, that was fine, no issues there," he says. (They'd launched on iOS in 2016.) "But a common practice we see ... as you start getting significant uptake in uploads and downloads, they start looking at your situation more carefully, and then as any good Mafia extortion goes, they come to shake you down for some money."

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Microsoft today announced a slew of new features coming to its Chromium Edge browser. From a report: There are PDF improvements, a built-in screenshot tool, support for more themes, and new shopping features in time for the holiday season. But the most notable addition is the one powered by Skype because for better or for worse, 2020 is the year of video calling. When Zoom usage exploded this year, Microsoft tried to save face by making it easier to join Skype calls -- the company dropping account sign-up requirements and expanded the number of supported users. Microsoft is now bringing that functionality to Edge's new tab page with a dedicated Meet Now button (not to be confused with Google Meet). [...] Microsoft claims "Edge is the best browser for shopping this holiday." To make the case, Edge is getting a feature called price comparison that compares the price of a product you're searching for across other retailers. If you add a product to a collection, you can then click "compare price to other retailers" to see a list of prices of that item across other retailers.

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There are few things as revealing as a person's search history, and police typically need a warrant on a known suspect to demand that sensitive information. But a recently unsealed court document found that investigators can request such data in reverse order by asking Google to disclose everyone who searched a keyword rather than for information on a known suspect. From a report: In August, police arrested Michael Williams, an associate of singer and accused sex offender R. Kelly, for allegedly setting fire to a witness' car in Florida. Investigators linked Williams to the arson, as well as witness tampering, after sending a search warrant to Google that requested information on "users who had searched the address of the residence close in time to the arson." The July court filing was unsealed on Tuesday. Detroit News reporter Robert Snell tweeted about the filing after it was unsealed. Court documents showed that Google provided the IP addresses of people who searched for the arson victim's address, which investigators tied to a phone number belonging to Williams. Police then used the phone number records to pinpoint the location of Williams' device near the arson, according to court documents. The original warrant sent to Google is still sealed, but the report provides another example of a growing trend of data requests to the search engine giant in which investigators demand data on a large group of users rather than a specific request on a single suspect. "This 'keyword warrant' evades the Fourth Amendment checks on police surveillance," said Albert Fox Cahn, the executive director of the Surveillance Technology Oversight Project. "When a court authorizes a data dump of every person who searched for a specific term or address, it's likely unconstitutional."

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Waymo, the Google self-driving-project-turned-Alphabet unit, is beginning to open up its driverless ride-hailing service to the public. From a report: The company said that starting today members of its Waymo One service will be able to take family and friends along on their fully driverless rides in the Phoenix area. Existing Waymo One members will have the first access to the driverless rides -- terminology that means no human behind the wheel. However, the company said that in the next several weeks more people will be welcomed directly into the service through its app, which is available on Google Play and the App Store. Waymo said that 100% of its rides will be fully driverless -- which it has deemed its "rider only" mode. That 100% claim requires a bit of unpacking. The public shouldn't expect hundreds of Waymo-branded Chrysler Pacifica minivans -- no human behind the wheel -- to suddenly inundate the entire 600-plus square miles of the greater Phoenix area. Waymo has abut 600 vehicles in its fleet. About 300 to 400 of those are in the Phoenix area. Waymo wouldn't share exact numbers of how many of these vehicles would be dedicated to driverless rides. However, Waymo CEO John Krafcik explained to TechCrunch in a recent interview, that there will be various modes operating in the Phoenix area. Some of these will be "rider only," while other vehicles will still have train safety operators behind the wheel. Some of the fleet will also be used for testing.

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Dr. Lisa Su, the CEO of AMD, has today announced the company's next generation mainstream Ryzen processor. From a report: The new family, known as the Ryzen 5000 series, includes four parts and supports up to sixteen cores. The key element of the new product is the core design, with AMD's latest Zen 3 microarchitecture, promising a 19% raw increase in performance-per-clock, well above recent generational improvements. The new processors are socket-compatible with existing 500-series motherboards, and will be available at retail from November 5th. AMD is putting a clear marker in the sand, calling one of its halo products as 'The World's Best Gaming CPU.' With the new Ryzen 5000 series, AMD is keeping a similar structure to the previous generation. The first four processors to market will include products in the key Ryzen 5 and Ryzen 7 segments, as well as a pair of high-performance parts with Ryzen 9. These will stretch from six cores to sixteen cores, with increased frequencies and increased performance-per-clock, but with no additional increase in power. The processors are still chiplet-based, with one chiplet having either six or eight cores. Ryzen 5 and Ryzen 7 will have one chiplet, while Ryzen 9 will have two chiplets -- the easy way to identify this is through the amount of L3 cache each processor has. Full details here.

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Facebook is using its vast legal muscle to silence one of its most prominent critics. The Real Facebook Oversight Board, a group established last month in response to the tech giant's failure to get its actual Oversight Board up and running before the presidential election, was forced offline on Wednesday night after Facebook wrote to the internet service provider demanding the group's website -- realfacebookoversight.org -- be taken offline. From a report: The group is made up of dozens of prominent academics, activists, lawyers, and journalists whose goal is to hold Facebook accountable in the run-up to the election next month. Facebook's own Oversight Board, which was announced 13 months ago, will not meet for the first time until later this month, and won't consider any issues related to the election. In a letter sent to one of the founders of the RFOB, journalist Carole Cadwalladr, the ISP SupportNation said the website was being taken offline after Facebook complained that the site was involved in "phishing."

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In a not-so-subtle dig at Apple and Google, Microsoft today announced a series of "principles" for its Windows 10 App Store -- including letting users choose their own payment system for in-app purchases -- that it says should serve as a model for other app stores. From a report: The move comes as antitrust regulators in the U.S. and around the world are spotlighting how both Apple and Google manage their mobile platforms and as some developers charge them with running their app stores unfairly. In addition to offering developers the option to use an alternative payment mechanism for in-app purchases, Microsoft pledged that it will, among other things: allow competing app stores; hold its own apps to the same standards as those of other companies; allow app makers to decide what they do and don't want to sell within their app; and allow any developer in its store "as long as it meets objective standards and requirements, including those for security, privacy, quality, content, and digital safety."

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I have my eye on a new ultra-wide monitor.

Intel's 10th Gen Comet Lake S desktop CPUs debuted earlier this year, with the Core i9-10900K in particular offering sizeable gains in gaming performance from the previous generation. The mid-range Core i7-10700K and Core i5-10600K also come with exciting gains in a lot of areas, but one downside is that the 10th Gen designs don't support PCIe 4.0, unlike their AMD counterparts. Intel is aiming to fix that with the 11th Gen Rocket Lake series. The chip manufacturer has confirmed that the 11th Gen Rocket Lake series will make its debut in Q1 2021, and that it will include PCIe 4.0 support. From a report: Intel didn't go into architectural details on Rocket Lake, but recent leaks give us a high-level overview of the platform. The Rocket Lake S desktop designs will be based on a 14nm node -- much like Intel's last four generations -- but Intel is introducing a new Willow Cove architecture that should deliver decent gains over the current 10th Gen platform. In particular, Rocket Lake will deliver significant IPC gains thanks to the switch to Willow Cove, with Intel once again able to leverage 5.0GHz boost frequencies because of the mature 14nm platform.

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The Nobel Prize in Literature was awarded on Thursday to Louise Gluck, one of America's most celebrated poets, "for her unmistakable poetic voice that with austere beauty makes individual existence universal." The award was announced at a news conference in Stockholm. From a report: Gluck, who was born in New York in 1943, has written numerous poetry collections, many of which deal with the challenges of family life and growing older. They include "The Wild Iris," for which she won a Pulitzer Prize in 1993, and "Faithful and Virtuous Night," about mortality and grief, from 2014. She was named the United States' poet laureate in 2003. At the Nobel announcement, Anders Olsson, the chair of the prize-giving committee, praised her minimalist voice and especially poems that get to the heart of family life. "Louise Gluck's voice is unmistakable," he said. "It is candid and uncompromising, and it signals this poet wants to be understood." But he also said her voice was also "full of humor and biting wit."

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