破解 ChatGPT 惊人耗电，DeepMind 新算法训练提效 13 倍，能耗暴降 10 倍
Recently, the GoogleDeepMind research team proposed a new method to speed up AI training, multimodal contrastive learning with joint example selection (JEST), which greatly reduces the computational resources and time required.
JEST outperforms state-of-the-art models with 13 times fewer iterations and 10 times less computation.
Overall, the JEST approach shows great potential for "data quality bootstrapping", which uses small-scale curated datasets to guide learning on larger, unmanaged datasets.
Whether the dataset is pre-scored using the JEST reference model or dynamically adjusted to the needs of the model through a learnability score, it can be a more efficient alternative to the generic underlying dataset. Of course, there are limitations to this approach, and while JEST achieves both performance gains and training cost reductions, it still relies on small, well-managed reference datasets that specify distributions that are prioritized in larger unmanaged data sets.
Musk denied that the delay in disclosing Twitter's shareholding information was deliberate, saying that it was a misunderstanding of the rules
On July 7, according to Reuters, Tesla CEO Elon Musk (Elon Musk) wants to dismiss a lawsuit against him by a former Twitter shareholder, which alleges that Musk delayed the disclosure of his large Twitter holdings in early 2022. Musk argued that "all indications" that his delay in disclosure was "a mistake".
Late Wednesday night, Musk said in a filing in federal court in Manhattan that it was "unbelievable" that he wanted to defraud shareholders who did not know that he held 9.2% of Twitter's shares and that they were missing out on huge profits because those shareholders sold their shares, and that he had intended to disclose his Twitter stake at the end of 2022, but did so immediately after realizing that he had misunderstood the SEC's disclosure rules.
Musk and his wealth manager, Jared Birchall, were aware of SEC rules requiring Musk to disclose his stake in more than 5% of Twitter by March 24, 2022, but Musk delayed it by 11 days, according to investors involved in the class action lawsuit.
Investors say this has allowed Musk to buy more shares at a lower price, saving more than $200 million. (Source: IT House)
The iPhone 16 comes pre-installed with the official version, and Apple's iOS 18 public beta will be released in July
The iOS 18 open beta will reportedly go live around July 15, which will be more stable than the current developer beta.
According to the plan, the official version of the upgrade will be opened in September, and the iPhone 16 series will come with iOS 18 official version pre-installed at the factory.
As Apple's latest version of the operating system, iOS 18's biggest upgrade point is AI, bringing Apple Intelligence for the first time.
Powered by Apple Intelligence, Siri's voice assistant has been significantly upgraded to include screen-aware features such as users who can ask Siri to add addresses sent in messages to contacts, get flights from email and stay up-to-date on flight status, and more.
Apple Intelligence is currently in beta and only supports the iPhone 15 Pro series, with only the English language supported. (Source: Fast Technology)
The iOS Epic Games App Store has been blocked in the EU, and Apple is unhappy with its button design
On July 7, Epic Games said on Friday that Apple rejected their application for the Epic Games Reason Store for iOS launched for the EU market. According to Epic, Apple's rejection was due to some naming conventions and button designs in the store.
Late on Friday, Epic announced that Apple had suddenly changed its mind and approved the launch of the Epic Games Store for iOS for the EU market.
The battle doesn't seem to end there, as an anonymous spokesperson for Apple said that while they will temporarily allow the EU version of the iOS Epic Games Store to go live, they will still ask Epic to modify the store's button design in the next release, according to AppleInsider.
Epic Games CEO Tim Sweeney responded to this by posting on his personal X account, saying that "Apple's move around the Digital Markets Act is becoming more and more ridiculous," and that this approval is only temporary and requires us to change the buttons in the next release, which will make our store less standardized and harder to use. We will fight this to the end." (Source: IT House)
Hackers are eyeing cryptocurrency, reporting that the amount stolen in the first half of 2024 doubled year-over-year to $1.38 billion
On July 7, according to a report released by blockchain research institute TRM Labs on Friday, global cryptocurrency thefts surged in the first half of 2024, with the amount more than double that of the same period last year. This is mainly due to a small number of large-scale attacks and an increase in the price of cryptocurrencies.
According to the report, as of June 24, 2024, hackers have stolen more than $1.38 billion worth of cryptocurrencies this year (currently about $10.049 billion), compared to just $657 million in the same period in 2023. In addition to this, the average value of a single theft this year is also 50% higher than the same period last year.
One of the largest crypto thefts so far this year has been an "unauthorized leak" of Japanese cryptocurrency exchange DMM Bitcoin, which lost around $308 million worth of Bitcoin. (Source: IT House)
For a limited time, starting at 23,800 yuan, Wuling Hongguang MINIEV offers up to 15,000 yuan
On July 7, it was reported that IT Home learned from Wuling Motors that Wuling Hongguang MINIEV launched a limited-time preferential policy for car purchases, with a maximum discount of 15,000 yuan, and after the discount, the starting price of the car is 23,800 yuan, and the event time is from July 7th to July 31st.
The Hongguang MINIEV is positioned as a micro electric vehicle, with a total of 25 models currently on sale, with prices ranging from 32,800 to 99,900 yuan. In terms of power, the Hongguang MINIEV currently provides a maximum power of 20 kW and 30 kW drive motors for choice, and in terms of range, it provides a NEDC range of 120 km and 170 km depending on the version. CLTC range of 170 km, 200 km, 215 km, 280 km, 300 km is available.
In February this year, officials said that the Hongguang MINIEV family has achieved cumulative sales of more than 1.2 million units from its launch in July 2020 to February 2024. (Source: IT House)
Ali DAMO Academy launches one-stop AI video creation platform "Seeking Light"
On July 6, it was reported that during the 2024 World Artificial Intelligence Conference (WAIC 2024), Ali Damo Academy launched a one-stop AI video creation platform - Xunguang. Officially, the platform aims to make video creation simpler and more efficient through AI technology, and it integrates key steps such as script creation, storyboard design, and video material editing, so that creators can complete the whole process of video creation on the platform from idea to finished product.
According to reports, the light finder contains the following functions:
- Storyboard generation: Create storyboards with one click. "From the script to the storyboard, let AI assist your directorial journey, no longer need to rely on imagination, the picture will come to life."
- Custom story characters: AI customizes exclusive "actors" for users.
- Free creation of visual materials: AI generates consistent characters and scenes based on the user's ideas, and then uses camera movement control and motion editing to create videos.
- Controllable editing of video content: AI footage and live-action footage can be edited with various types of video (such as target addition, target elimination, target editing, style transformation, layer disassembly/blending, etc.). (Source: IT House)
BMW's first pure electric sports car was revealed: the caliper was eliminated and the wheel motor was used
Spy shots of road tests of BMW's latest sports car model, the Neue Klasse series, which could be the successor to the BMW i8, have been revealed.
It is reported that the Neue Klasse series is expected to launch 7 models by 2027, all based on the 800V architecture. Judging from the spy photos, the new car adopts the Neue Klasse family design, the front of the car is closed, integrating a closed grille and a continuous headlight cluster, and the middle part adopts a light-emitting design, presenting the classic elements of BMW's double grille.
The front envelope is also a through-type design, with clear layers of diversion surfaces on both sides. On the side, the new car has a two-door structure and a fast-back roofline, creating a sense of speed.
At the rear, the new taillights feature a two-stage through-line design, with a concave curved rear end and a large diffuser on the rear bumper that are expected to provide good downforce. However, the doors of the new car are controlled by a touch-panel on the B-pillar instead of traditional handles.
The absence of conventional brake calipers behind the rims suggests that an innovative wheel motor technology may have been used. Although the maximum power of the motor has not yet been announced, it is expected to achieve at least a deceleration of more than 1 g to meet braking needs. (Source: Fast Technology)
6 billion light-years away, there is a brilliant "gemstone and diamond ring"
Recently, the James Webb telescope captured the gravitational lensing phenomenon of the quasar RX J1131-1231, about 6 billion light-years away, in the direction of the constellation Giant, which looks like a brilliant "gemstone diamond ring". There is a huge galaxy in front of it, and when viewed from Earth, the light of the quasar is stretched into a bright arc and four identical images are created.
This image was taken by the Webb telescope's mid-infrared scap, which was used to study dark matter.
Gravitational lensing is a phenomenon predicted by Einstein's general theory of relativity.
If there is a massive object in the straight line from the observer to the light source, one or more images will be seen due to the bending of the light, and in some cases a ring, called an Einstein ring.
This is due to the distortion of space-time in the vicinity of massive objects, which causes light rays to bend as they pass near massive objects. (Source: Fast Technology)