Uncategorized Archives - Page 70 of 293

Watch Volunteers Emerge After Living One Year in a Mars Simulation

They lived 378 days in a “mock Mars habitat” in Houston, reports Engadget. But today the four volunteers for NASA’s yearlong simulation will finally emerge from their 1,700-square-foot habitat at the Johnson Space Center that was 3D-printed from materials that could be created with Martian soil.

And you can watch the “welcome home” ceremony’s livestream starting at 5 p.m. EST on NASA TV (also embedded in Engadget’s story). More det ails from NASA:

For more than a year, the crew simulated Mars mission operations, including “Marswalks,” grew and harvested several vegetables to supplement their shelf-stable food, maintained their equipment and habitat, and operated under additional stressors a Mars crew will experience, including communication delays with Earth, resource limitations, and isolation.

One of the mission’s crew members told the Houston Chronicle they were “very excited to go back to ‘Earth,’ but of course there is a bittersweet aspect to it just like any time you reach the completion of something that has dominated one’s life for several years.”

Various crew members left behind their children or long-term partner for this once-in-a-lifetime experience, according to an earlier article, which also notes that NASA is paying the participants $10 per hour “for all waking hours, up to 16 hours per day. That’s as much as $60,480 for the 378-day mission.”

Engadget points out there are already plans for two more one-year “missions” — with the second one expected to begin next spring…

I’m curious. Would any Slashdot readers be willing to spend a year in a mock Mars habitat?

Read more of this story at Slashdot.

07 Jul

‘How Good Is ChatGPT at Coding, Really?’

IEEE Spectrum (the IEEE’s official publication) asks the question. “How does an AI code generator compare to a human programmer?”

A study published in the June issue of IEEE Transactions on Software Engineering evaluated the code produced by OpenAI’s ChatGPT in terms of functionality, complexity and security. The results show that ChatGPT has an extremely broad range of success when it comes to producing functional code — with a success rate ranging from anywhere as poor as 0.66 percent and as good as 89 percent — depending on the difficulty of the task, the programming language, and a number of other factors. While in some cases the AI generator could produce better code than humans, the analysis also reveals some security concerns with AI-generated code.

The study tested GPT-3.5 on 728 coding problems from the LeetCode testing platform — and in five programming languages: C, C++, Java, JavaScript, and Python. The results?

Overall, ChatGPT was fairly good at solving problems in the different coding languages — but especially when attempting to solve coding problems that existed on LeetCode before 2021. For instance, it was able to produce functional code for easy, medium, and hard problems with success rates of about 89, 71, and 40 percent, respectively. “However, when it comes to the algorithm problems after 2021, ChatGPT’s ability to generate functionally correct code is affected. It sometimes fails to understand the meaning of questions, even for easy level problems,” said Yutian Tang, a lecturer at the University of Glasgow. For example, ChatGPT’s ability to produce functional code for “easy” coding problems dropped from 89 percent to 52 percent after 2021. And its ability to generate functional code for “hard” problems dropped from 40 percent to 0.66 percent after this time as well…

The researchers also explored the ability of ChatGPT to fix its own coding errors after receiving feedback from LeetCode. They randomly selected 50 coding scenarios where ChatGPT initially generated incorrect coding, either because it didn’t understand the content or problem at hand. While ChatGPT was good at fixing compiling errors, it generally was not good at correcting its own mistakes… The researchers also found that ChatGPT-generated code did have a fair amount of vulnerabilities, such as a missing null test, but many of these were easily fixable.

“Interestingly, ChatGPT is able to generate code with smaller runtime and memory overheads than at least 50 percent of human solutions to the same LeetCode problems…”

Read more of this story at Slashdot.

06 Jul

New SnailLoad Attack Exploits Network Latency To Spy On Users’ Web Activities

Longtime Slashdot reader Artem S. Tashkinov shares a report from The Hacker News: A group of security researchers from the Graz University of Technology have demonstrated a new side-channel attack known as SnailLoad that could be used to remotely infer a user’s web activity. “SnailLoad exploits a bottleneck present on all Internet connections,” the researchers said in a study released this week. “This bottleneck influences the latency of network packets, allowing an attacker to infer the current network activity on someone else’s Internet connection. An attacker can use this information to infer websites a user visits or videos a user watches.” A defining characteristic of the approach is that it obviates the need for carrying out an adversary-in-the-middle (AitM) attack or being in physical proximity to the Wi-Fi connection to sniff network traffic. Specifically, it entails tricking a target into loading a harmless asset (e.g., a file, an image, or an ad) from a threat actor-controlled server, which then exploits the victim’s network latency as a side channel to determine online activities on the victim system.

To perform such a fingerprinting attack and glean what video or a website a user might be watching or visiting, the attacker conducts a series of latency measurements of the victim’s network connection as the content is being downloaded from the server while they are browsing or viewing. It then involves a post-processing phase that employs a convolutional neural network (CNN) trained with traces from an identical network setup to make the inference with an accuracy of up to 98% for videos and 63% for websites. In other words, due to the network bottleneck on the victim’s side, the adversary can deduce the transmitted amount of data by measuring the packet round trip time (RTT). The RTT traces are unique per video and can be used to classify the video watched by the victim. The attack is so named because the attacking server transmits the file at a snail’s pace in order to monitor the connection latency over an extended period of time.

Read more of this story at Slashdot.

06 Jul

Christie’s Likens Microsoft’s Work On MS-DOS To Einstein’s Work In Physics

Longtime Slashdot reader theodp writes: “If Einstein paved the way for a new era in physics,” explains auction house Christie’s in a promotion piece for its upcoming offering of 150+ “objects of scientific and historical importance” from the Paul G. Allen Collection (including items from the shuttered Living Computers Museum), “Mr. Allen and his collaborators ushered in a new era of computing. Starting with MS-DOS in 1981, Microsoft then went on to revolutionize personal computing with the launch of Windows in 1985.”

Christie’s auction and characterization of MS-DOS as an Allen and Microsoft innovation comes 30 years after the death of Gary Kildall, whose unpublished memoir, the Seattle Times reported in Kildall’s July 1994 obituary, called DOS “plain and simple theft” of Kildall’s CP/M OS. PC Magazine’s The Rise of DOS: How Microsoft Got the IBM PC OS Contract notes that Paul Allen himself traced the genesis of MS-DOS back to a phone call Allen made to Seattle Computer Products owner Rod Brock in which Microsoft licensed Tim Paterson’s CP/M-inspired QDOS (Quick and Dirty Operating System) for $10,000 plus a royalty of $15,000 for every company that licensed the software. A shrewd buy-low-sell-high business deal, yes, but hardly an Einstein-caliber breakthrough idea.

Read more of this story at Slashdot.

06 Jul

How to Run on the Moon

It’s hard to stay fit in low gravity. Here’s a simple solution, using Einsteinian physics and an old carnival stunt.

06 Jul

Epic Games Lashes Out at Apple Over App Store Rejection

Fortnite creator Epic Games says Apple rejected its App Store rival for being too similar to its own—a move it deemed “arbitrary, obstructive,” and in violation of EU rules.

06 Jul

‘Saturday Night Live’ Writer Alex English Thinks Social Media Ruined the Art of Comedy

Saturday Night Live writer and veteran stand-up comedian Alex English believes platforms like TikTok have changed the relationship a comic has to their audience—in the worst ways possible.

06 Jul

Nvidia Forecasted To Make $12 Billion Selling GPUs In China

Nvidia is expected to earn $12 billion from GPU sales to China in 2024, despite U.S. trade restrictions. Research firm SemiAnalysis says the GPU maker will ship over 1 million units of its new H20 model to the Chinese market, “with each one said to cost between $12,000 and $13,000 apiece,” reports The Register. From the report: This figure is said by SemiAnalysis to be nearly double what Huawei is likely to sell of its rival accelerator, the Ascend 910B, as reported by The Financial Times. If accurate, this would seem to contradict earlier reports that Nvidia had moved to cut the price of its products for the China market. This was because buyers were said to be opting instead for domestically made kit for accelerating AI workloads. The H20 GPU is understood to be the top performing model out of three Nvidia GPUs specially designed for the Chinese market to comply with rules introduced by the Biden administration last year that curb performance.

In contrast, Huawei’s Ascend 910B is claimed to have performance on a par with that of Nvidia’s A100 GPU. It is believed to be an in-house design manufactured by Chinese chipmaker SMIC using a 7nm process technology, unlike the older Ascend 910 product. If this forecast proves accurate, it will be a relief for Nvidia, which earlier disclosed that its sales in China delivered a “mid-single digit percentage” of revenue for its Q4 of FY2024, and was forecast to do the same in Q1 of FY 2025. In contrast, the Chinese market had made up between 20 and 25 percent of the company’s revenue in recent years, until the export restrictions landed.