Electroencephalogram (EEG) signal classification faces significant challenges due to data distribution shifts caused by heterogeneous electrode configurations, acquisition protocols, and hardware discrepancies across domains. This paper introduces IMAC, a novel channel-dependent mask and imputation self-supervised framework that formulates the alignment of cross-domain EEG data shifts as a spatial time series imputation task. To address heterogeneous electrode configurations in cross-domain scenarios, IMAC first standardizes different electrode layouts using a 3D-to-2D positional unification mapping strategy, establishing unified spatial representations. Unlike previous mask-based self-supervised representation learning methods, IMAC introduces spatio-temporal signal alignment. This involves constructing a channel-dependent mask and reconstruction task framed as a low-to-high resolution EEG spatial imputation problem. Consequently, this approach simulates cross-domain variations such as channel omissions and temporal instabilities, thus enabling the model to leverage the proposed imputer for robust signal alignment during inference. Furthermore, IMAC incorporates a disentangled structure that separately models the temporal and spatial information of the EEG signals separately, reducing computational complexity while enhancing flexibility and adaptability. Comprehensive evaluations across 10 publicly available EEG datasets demonstrate IMAC's superior performance, achieving state-of-the-art classification accuracy in both cross-subject and cross-center validation scenarios. Notably, IMAC shows strong robustness under both simulated and real-world distribution shifts, surpassing baseline methods by up to $35$\% in integrity scores while maintaining consistent classification accuracy.

Laptops, tablets and desktops are on sale for the last day of Prime Day. Back-to-school season is almost here, and with Prime Day in full swing, now is the perfect time to grab a new laptop, desktop or tablet. Whether you're shopping for your new college student or looking for an upgrade for yourself, Amazon has some serious discounts during its four-day sale. Now through July 11, you can get deals on HP laptops, MacBooks, iPads and Samsung tablets, among others. Just make sure you're an Amazon Prime member to get the best deals.

Apple is best known for its futuristic, spaceship-like headquarters in Cupertino, California. But what many people don't know is that the tech giant also has a huge campus in Ireland. Apple's Cork campus opened its doors in 1980 with a single manufacturing facility and just 60 employees. Fast-forward to today, the site is home to more than 6,000 employees, and serves as Apple's European headquarters. The tech giant is usually extremely private about what happens behind closed doors.

If you weren't able to buy Apple's latest iMac in time to get it on its release day on November 8, here's your chance to get a discount on the all-in-one computer. The company is already selling it for 85 off at Amazon before the Black Friday frenzy even begins. Apple's refreshed computer has a list price of 1,299, but you can now get its silver version for just 1,214. Meanwhile, the blue and the green versions will set you back 1,249. Nothing huge, but it's always nice to get a brand new device for almost 100 off its original price.

It's been a Mac-heavy week! The Mac mini, in particular, looks like it'll be a huge hit for anyone who needs a simple desktop system. Also, we dive into why Apple is pushing for every Mac to get 16GB of RAM at a minimum. That will benefit all users, even if they don't care about Apple Intelligence. Listen below or subscribe on your podcast app of choice. If you've got suggestions or topics you'd like covered on the show, be sure to email us or drop a note in the comments! And be sure to check out our other podcast, Engadget News! Regulators force Lyft to tell U.S. drivers accurate numbers of how much money they'll make – 45:30 This week, I'm joined by our podcast producer, Ben Ellman. Kind of a light ship this week because a lot of people are out. Everyone's on taking some break and a lot of people are just busy at Engadget. So it's just going to be us. But we've got a lot of news to dive into all of Apple's new Macs with M4 chips, the M4 Pro and M4 Max as well, that they all just announced this week. There's a lot of new stuff and I'm excited to talk about it as always, folks. So if you're enjoying the show, please be sure to subscribe to us on iTunes or your podcatcher of choice. Leave us a review on iTunes. And also, yeah, you can join us Thursday mornings, typically around 1045 AM Eastern on our YouTube channel for our live stream so we can do some Q& A. In fact, we'll be including some of those questions and our answers later in this episode as well. Ben, you are somebody who I know is fully in the Mac ecosystem, and I also know you're very conscientious. Well, unfortunately, or for what you do, you're kind of there, but you're also very conscientious about how you upgrade, right? How did you feel about all these new Macs? Because we have the M4 iMac, we have an adorable new Mac mini, which is tiny, absolutely tiny, and M4 chips on the MacBook Pros. Is anything particularly compelling to you? Ben: So as I was reading up on the Mac, All of the stuff they released this week. That chip is four years old now. Ben: cut me like a knife. But that is M1 Classic, not M1 Pro. My research says that the M1 Pro is only two times slower than this new M4 Pro. Please fact check me on this. Send us an email at podcast adding gadget. If I didn't get that right. Devindra: I mean, you, you bring up a good point though, Ben, be sure to be very clear about what Apple is comparing its devices to, right? Because they often go back to base M1, which. Was released at the end of 2020 2020. It took a full year before we got the M4 Pro and M4 Max chips, right. Before they really expanded the line. Ben: you mean M1 Pro and M1 Max. So remember that there was that time difference when they, they just dropped the M1 on us and that was on the MacBook Air, MacBook Pro 13 inch, which was a fricking waste of time and the Mac mini, I believe back then, right.

Four iPhones and a new iPad have already been released in the past two months, but now Apple has announced yet another new product. With its'strikingly thin design', the tech giant calls its new hardware the'best in the world' in its category – and it's been built for AI. The company's new 1,299 iMac desktop computer has a 24-inch display, a front-facing 12-megapixel camera and four USB-C ports. It's fitted with the M4 chip that powers AI jobs, meaning it will be able to run Apple Intelligence. Apple Intelligence is the firm's suite of AI software that includes image editing, 'Genmoji' and an integration with ChatGPT. The new iMac comes in'playful' colors – green, yellow, orange, pink, purple, blue and silver.

About a month after Apple announced it at WWDC 2024, macOS Sequoia is available to test-drive as a public beta. Although we don't recommend installing it on your primary Mac, here's how to get the 2024 version of macOS up and running ahead of its official rollout in the fall. First, you'll need a recent Mac to run the Sequoia public beta. Apple's software supports the following models: You'll notice that list still includes (up to) the last few generations of Intel Macs, so Apple may still be several years away from requiring Apple Silicon for its latest software. However, Apple Intelligence, which isn't yet included in the beta, will require a Mac with an M-series chip when it's available. Macs don't have automatic iCloud system backups like iOS devices, so you'll want to back up your Mac with Time Machine before installing.

In this dizzy world of digital tricks and image manipulation where you can erase objects and alter images with a smartphone swipe, Leica wants photos taken on its camera to leave a digital footprint, known as a Content Credential. The M11-P also has a 60-megapixel sensor, and the typical understated layout and Leica styling. Content Credentials capture metadata about the photograph – like the camera used, location, time and more-- and locks those in a manifest that is wrapped up with the image using a cryptographic key. Those credentials can be verified online and whenever someone subsequently edits that photo, the changes are recorded to an updated manifest, bundled with the image and updated in the Content Credentials database. Users can click on an icon to pull up all of this historical manifest information, and is being described as a "nutrition label" for photographs.

Apple's cheapest desktop computer has had a price cut and a power upgrade – making it one of the smallest, cheapest and most adaptable Macs yet. The Mac mini starts at £649 ($599/A$999) – £50 less than the 2020 model – and has Apple's latest M2 or M2 Pro chips as used in the MacBook Air and MacBook Pro to great effect. The tiny aluminium box is about the size of a hardback book, measuring just under 20cm each side and less than 4cm thick. It is easy to fit just about anywhere: on a desk, mounted under one, in a TV cabinet, on the back of the monitor, stuck to a wall – wherever you can reach with a power cable. Like a normal desktop PC you simply plug the Mac mini into a screen, keyboard and mouse, all of which can be bought with it at great expense – or you can use your existing gear. I connected an Asus 4K monitor and Logitech Bluetooth mouse and keyboard to the mini to set it up, using them during the length of the review without issue.

A bunch of new tech sales cropped up at the start of the week for things like robot vacuums, game controllers and more, and many of them are still around today. A trio of iRobot devices remain discounted, with the most affordable of the bunch coming in at $179. Some of Amazon's Fire tablets are up to 50 percent off, while Xbox's Elite Wireless Series 2 controller is back down to $140. Here are the best tech deals from this week that you can still get today. The new Roomba j7 is $250 off right now and down to $599 at both Amazon and Wellbots. The higher-end Roomba s9 is also $250 and down to $850.