Nearly a year after Elon Musk first floated the idea of making Twitter’s recommendation algorithm public, the company has posted the source code for its recommendation algorithm on GitHub. In a Twitter Space discussing the move, Musk said he hoped users would be able to find potential “issues” in the code and help make it better.

“Our initial release of the so-called algorithm is going to be quite embarrassing and people are gonna find a lot of mistakes but we’re going to fix them very quickly,” Musk said.

Notably, the code released Friday only deals with how tweets are shown in Twitter’s “For You” feed. The company didn’t release the underlying code for its search algorithm or how content is displayed on other parts of Twitter, though Musk said the company would “for sure” open-source the search algorithm as well.

In a blog post outlining how Twitter’s recommendations work, the company explained the various steps of the algorithm, including ranking and filtering. But Twitter users have already been finding interesting details in the code itself. For example, Jane Manchun Wong noted that “Twitter’s algorithm specifically labels whether the Tweet author is Elon Musk.” That may offer yet another explanation for why Musk’s tweets appear so often. Wong also noted that the algorithm has labels indicating whether the tweet author is a “power user” as well as whether they are a Republican or Democrat.

When asked about that aspect of the algorithm in the Twitter Space, Musk said “I agree that shouldn’t be there … it definitely shouldn’t be dividing people into Republicans and Democrats, that makes no sense.” A Twitter engineer later followed up to clarify that the categories were only for “stat tracking purposes and it has nothing to do with the algorithm.” He said the labels are meant “to make sure we don’t bias towards one group versus another one” though he didn’t address why Musk had his own category.

“But isn’t it weird that you have four categories and one of them is Elon,” the questioner responded. “I think it’s weird,” Musk said. “This was the first time I’m learning this.” The Twitter engineer didn’t directly respond with an explanation. The Twitter Space ended less than a minute later. 

This article originally appeared on Engadget at https://www.engadget.com/twitters-recommendation-algorithm-is-now-on-github-200511112.html?src=rss

Source: Engadget – Twitter’s recommendation algorithm is now on GitHub

California will require more than half of all heavy trucks sold in the state to be electric by 2035. The rule received approval from the Biden administration today, allowing it to take effect next year, according toThe New York Times. California approved the mandate in 2020 but needed an Environmental Protection Agency (EPA) waiver because it exceeded federal standards.

The rule aims to reduce greenhouse gas emissions from the transportation sector. By 2035, it requires 55 percent of delivery vans and small trucks sold in California to be entirely electric-powered. Similarly, 40 percent of tractor-trailers and 75 percent of buses and larger trucks must be all-electric by the same deadline.

California Governor Gavin Newsom sees the mandate as a bellwether for the nation. “This is a moment to mark because it’s a preview of the order of magnitude of the change in the industry,” Newsom told The New York Times. “There’s a power in these waivers and that power is emulation. We adopt through these waivers the principles and policies that lead to innovation and investment.” Given the size and centrality of California’s economy (it would be the world’s fifth-biggest economy if it were a sovereign nation), the rule would, in practice, essentially apply nationwide — similar to the state’s ban on sales of gas-powered vehicles by 2035.

The trucking industry has criticized the move for its costs and infrastructure requirements. “Drivers don’t want to work in California anymore,” said Jay Grimes, director of federal affairs for the Owner-Operator Independent Drivers Association. “They’re skeptical of the rapid timeline on this transition to electric trucks. Can a trucker get a charge that will take them on a highway for two or three days? Is the technology ready for prime time?” He adds that batteries for electric trucks can weigh thousands of pounds more than combustion engines, potentially limiting hauls. Other truckers have questioned whether the charging station rollout will be adequate for long trips. Finally, electric trucks are more expensive, starting at around $100,000 and stretching into high six figures (although the pricing discrepancies compared to gas trucks could drop over time).

Unsurprisingly, attorneys general from 17 Republican-led states are suing to block the legislation. That list includes (among others) Texas AG Ken Paxton, who has received over $3.9 million in fossil fuel donations since 2002, and Louisiana AG Jeff Landry, who has raked in over $875,000 from oil and gas industries. Their lawsuit is scheduled for the US Court of Appeals for Washington, DC, later this year and could move to the conservative-dominated US Supreme Court afterward.

Clean energy groups acknowledge the mandate’s difficulties but strike an optimistic tone. “There’s a great deal of challenge with the electrification of heavy-duty vehicles,” said Drew Kodjak, executive director of the International Council on Clean Transportation. “But there are elements that lead to optimism.” For example, he points out that government tax incentives and savings from not having to buy gasoline will help with long-term costs. “Companies like FedEx look at the bottom line over the total life span of a vehicle. And when they look long-term, the calculations for this become more optimistic.”

This article originally appeared on Engadget at https://www.engadget.com/california-will-require-half-of-heavy-truck-sales-to-be-electric-by-2035-200313559.html?src=rss

Source: Engadget – California will require half of heavy truck sales to be electric by 2035

GOG is winding down its annual Spring Sale, and this is a good opportunity to score some hit games at steep discounts. For starters, Cyberpunk 2077 is down to just $30. If you haven’t yet tried the Keanu Reeves-starring action RPG, now might be a good time to jump in.

Other major deals tend to revolve around classics. Witcher 3 Complete is available for $15, while the Alien: Isolation Collection is down to $10. Hollow Knight is on sale for $7.50, as isHellblade: Senua’s Sacrifice. The enhanced version of the legendary RPG Planescape: Torment is selling for $5, and you can snag XCOM 2for $3. Not that this is the end of the bargains. Over 4,500 titles are discounted, so the odds are that a game you want available on the cheap.

The sale ends April 3rd at 6PM Eastern. As of this writing, GOG is also giving away the survival-tinged turn-based combat game Deep Sky Derelicts. All games in the store are DRM-free and thus don’t need activation or an internet connection to play. While this won’t get you many cutting-edge releases, it might help build your collection — or at least, add to your backlog.

This article originally appeared on Engadget at https://www.engadget.com/gogs-spring-sale-deals-include-cyberpunk-2077-for-30-193415686.html?src=rss

Source: Engadget – GOG’s Spring Sale deals include ‘Cyberpunk 2077’ for

This isn’t an early April Fool’s gag. Jeep just unveiled a mashup of a 1978 Cherokee with a 2022 Jeep Wrangler Rubicon 4xe, a higher-end hybrid SUV, to create a Frankenstein vehicle that is heavy both on delicious retro looks and modern performance metrics. The 1978 Jeep Cherokee 4xe Concept vehicle is an old-school two-door affair with a modern Starburst yellow paint job that could actually be mistaken for a lovingly cared-for, decades-old vehicle.

Underneath the hood is where all of the modern technology resides. For the uninitiated, 4xe vehicles are 4×4 plug-in hybrid electric SUVs, so there are “two electric motors, a high-voltage battery pack and a high-tech 2.0-liter turbocharged I-4 engine,” as Jeep describes it. An eight-speed automatic transmission and custom 37-inch tires wrapped around 17-inch “slotted mag” style wheels round out the design. The interior is also a custom job, with low-back bucket seats trimmed in leather, a four-point safety cage instead of a rear bench seat and a rear cargo space complete with a full-size spare tire.

This is just one of many concept vehicles Jeep unveiled as part of its annual Easter Jeep Safari event held in Moab, UT, where the company likes to show off some wild prototypes. The other highlight is the fully-electric Magneto 3.0 Wrangler prototype, based on the two-door 2020 Jeep Wrangler Rubicon. It features a custom-built electric motor that operates up to 6,000 rpm connected to a six-speed manual transmission. That’s right, this EV is a stick shift.

Jeep has been messing with this Magneto EV concept for a few years, but this year’s version more than doubles the peak amps available in the propulsion system and offers a 20 percent increase in range. The motor delivers up to 900 pounds of torque and 650 horsepower.

These are concept/prototype vehicles, so you can’t walk into a local showroom and try one out, though you could see them in person if you are in Utah from April 1st to April 9th. Jeep has been making massive inroads lately in the hybrid and EV space, making good so far on its promise to release hybrid versions of each of its primary models by 2025.

This article originally appeared on Engadget at https://www.engadget.com/jeep-just-mushed-together-a-1970s-cherokee-with-a-modern-hybrid-wrangler-193056948.html?src=rss

Source: Engadget – Jeep just mushed together a 1970s Cherokee with a modern hybrid Wrangler