The sale event of the summer is here, and the Amazon Prime Day Kindle deals (and other Amazon device deals!) are ones you can count on being great to shop. As someone who tests Amazon gear for a living--Echo speakers, Kindles, Amazon's smart plugs, you name it--I'm always tracking what in Amazon's lineup is worth buying. I have a ton of favorites, from the best of the best, like the Kindle Paperwhite and Echo Show 8, to the Kindle Scribe and Echo Spot. It's the perfect time to shop all of those and more. Not only is everything in this guide WIRED-tested and WIRED-approved, but it's on sale right now.

Amazon Prime Day began as one day and is now much more of an event, lasting four days this year. The Prime Day deals started dropping last month, and will go on through Friday. We'll be dangerously caffeinated and working in shifts, covering 20 hours a day through the end. The WIRED Reviews team only recommends deals on products we've actually tested and approved, and which are actually discounted. If you're looking for up-to-the-minute coverage of deals, check out our Amazon Prime Day liveblog, which will run from 5 am to midnight daily. Updated July 9, 2025: We've added over two dozen new deals on our favorite laptops, robot vacuums, TVs, security cameras, and more. If you want something hard-wearing and fast charging from the best USB-C cables, this is our pick. It tops out at 240 watts and has a tough, braided nylon exterior made from 100 percent recycled plastic. Anker promises this cable will last a century and it can operate in temperatures from -40 degrees to 176 degrees ...

LLM-powered applications are highly susceptible to the quality of user prompts, and crafting high-quality prompts can often be challenging especially for domain-specific applications. This paper presents a novel dynamic context-aware prompt recommendation system for domain-specific AI applications. Our solution combines contextual query analysis, retrieval-augmented knowledge grounding, hierarchical skill organization, and adaptive skill ranking to generate relevant and actionable prompt suggestions. The system leverages behavioral telemetry and a two-stage hierarchical reasoning process to dynamically select and rank relevant skills, and synthesizes prompts using both predefined and adaptive templates enhanced with few-shot learning. Experiments on real-world datasets demonstrate that our approach achieves high usefulness and relevance, as validated by both automated and expert evaluations.

Recommender systems exemplify sequential decision-making under uncertainty, strategically deciding what content to serve to users, to optimise a range of potential objectives. To balance the explore-exploit trade-off successfully, Thompson sampling provides a natural and widespread paradigm to probabilistically select which action to take. Questions of causal and counterfactual inference, which underpin use-cases like offline evaluation, are not straightforward to answer in these contexts. Specifically, whilst most existing estimators rely on action propensities, these are not readily available under Thompson sampling procedures. We derive exact and efficiently computable expressions for action propensities under a variety of parameter and outcome distributions, enabling the use of off-policy estimators in Thompson sampling scenarios. This opens up a range of practical use-cases where counterfactual inference is crucial, including unbiased offline evaluation of recommender systems, as well as general applications of causal inference in online advertising, personalisation, and beyond.

In production recommender systems, feature preprocessing must be faithfully replicated across training and inference environments. This often requires duplicating logic between offline and online environments, increasing engineering effort and introducing risks of dataset shift. We present Kamae, an open-source Python library that bridges this gap by translating PySpark preprocessing pipelines into equivalent Keras models. Kamae provides a suite of configurable Spark transformers and estimators, each mapped to a corresponding Keras layer, enabling consistent, end-to-end preprocessing across the ML lifecycle. Framework's utility is illustrated on real-world use cases, including MovieLens dataset and Expedia's Learning-to-Rank pipelines. The code is available at https://github.com/ExpediaGroup/kamae.

Amazon Prime Day is now four days. The Prime Day deals started dropping last month, reached a fever pitch today, and will go on through Friday. We'll be dangerously caffeinated and working in shifts covering 20 hours a day through the end. The WIRED Reviews team only recommends deals on products we've actually tested and approved, and which are actually discounted. If you're looking for up-to-the-minute coverage of deals, check out our Amazon Prime Day liveblog, which will run from 5 am to midnight daily. Deals on computers, routers, monitors, tablets, keyboards, and more. The Google Pixel Tablet (7/10, WIRED Recommends) is a good Android tablet. Where it really shines, though, is its ability to be paired with the charging speaker dock to transform into a smart speaker when you aren't using it as a tablet. Right now, only the tablet version is on sale, and it's a good price if you want to buy it for the sharp screen and overall solid performance. Enjoy simple, set-and-forget Wi-Fi courtesy of Amazon's Eero mesh systems. The tri-band Eero Pro 6E (7/10, WIRED Recommends) adds 6 GHz to the familiar 2.4-GHz and 5-GHz bands, for fast and dependable Wi-Fi. The Eero Plus subscription is expensive ( 10 per month or 100 per year) but includes comprehensive parental controls, advanced security, ad blocking, and even a password manager and VPN service. As the budget pick in our best mesh Wi-Fi systems guide, the Deco X20 is already a bargain. This Wi-Fi 6 dual-band mesh (2.4-GHz and 5-GHz) is easy to set up and delivered solid results in my tests. It's not the speediest mesh, but if your internet connection is 500 Mbps or less, it's likely enough.

Amazon Prime Day is now almost a week. Prime Day started today and will go on for three more days. We'll be dangerously caffeinated and working shifts 20 hours a day from now through Friday, July 11. The WIRED Reviews team has been prepping for weeks to bring you real savings on the very best tech, and we only recommend products we've actually tested and approved. If you're looking for up-to-the-minute coverage of check out our Amazon Prime Day liveblog, which will run from 5 am to midnight daily. Deals on computers, routers, monitors, tablets, keyboards, and more. The Google Pixel Tablet (7/10, WIRED Recommends) is a good Android tablet. Where it really shines, though, is its ability to be paired with the charging speaker dock to transform into a smart speaker when you aren't using it as a tablet. Right now, only the tablet version is on sale, and it's a good price if you want to buy it for the sharp screen and overall solid performance. Enjoy simple, set-and-forget Wi-Fi courtesy of Amazon's Eero mesh systems. The tri-band Eero Pro 6E (7/10, WIRED Recommends) adds 6 GHz to the familiar 2.4-GHz and 5-GHz bands, for fast and dependable Wi-Fi. The Eero Plus subscription is expensive ( 10 per month or 100 per year) but includes comprehensive parental controls, advanced security, ad blocking, and even a password manager and VPN service. As the budget pick in our best mesh Wi-Fi systems guide, the Deco X20 is already a bargain. This Wi-Fi 6 dual-band mesh (2.4-GHz and 5-GHz) is easy to set up and delivered solid results in my tests. It's not the speediest mesh, but if your internet connection is 500 Mbps or less, it's likely enough. Each router has two gigabit Ethernet ports, and the vaselike design blends in easily on shelves or tables. This tri-band Wi-Fi 6E mesh system from TP-Link scores a place in our best mesh Wi-Fi systems guide. Easy to set up and configure through the mobile app, each unit has one 2.5 Gbps Ethernet port and two gigabit ports. It offers fast speeds at close range on the 6-GHz band, but was also fast on 5 GHz, and offered a decent range on 2.4 GHz. There are optional subscriptions for parental controls and enhanced security. Cheap laptops don't have to be terrible, and the HP Chromebook Plus x360 proves it. While there are more premium Chromebooks out there, none sell for so little on discount. It has a 14-inch 1080p screen, and unlike some Chromebooks at this price, it also comes with enough RAM and storage.

The sale event of the summer is here, and the Amazon Prime Day Kindle deals (and other Amazon device deals!) are ones you can count on being great to shop. As someone who tests Amazon gear for a living--Echo speakers, Kindles, Amazon's smart plugs, you name it--I'm always tracking what in Amazon's lineup is worth buying. I have a ton of favorites, from the best of the best, like the Kindle Paperwhite and Echo Show 8, to the Kindle Scribe and Echo Spot. It's the perfect time to shop all of those and more. Not only is everything in this guide WIRED-tested and WIRED-approved, but it's on sale right now. Try our Absolute Best Amazon Prime Day Deals roundup and Prime Day liveblog.

On TikTok, Gyasi Alexander likes to hold "yap sessions" about all sorts of vulnerable topics--self-image issues, anxiety, why you shouldn't romanticize forgiveness. He started posting videos like that last summer, following the end of an 11-year relationship, after a group of friends encouraged him to use the platform as an outlet to talk about his healing process. Lately, though, the 28-year-old retail sales worker who lives in Providence, Rhode Island, has decided to fully embrace, and talk about, his most vulnerable trait--being a yearner. "Yearning is a little bit different from love in that it's more intense," he says. It feels like you're constantly reaching for more.

Amazon Prime Day is here, and the deals are dropping like the bass at a Skrillex show. This year, Amazon has expanded the event to four days, with most of the best Prime Day deals launching in the early hours of Tuesday morning and sitting on the metaphorical shelf through 11:59 pm PT on Friday, July 11. There are tens of thousands of products on sale this week, but comparatively few deserve your time and money. The WIRED Reviews team spends weeks prepping for Prime Day and will be working in shifts for 20 hours a day throughout the event to keep our coverage updated--all so you can score real savings on products we've tested and approved. If you're looking for up-to-the-minute coverage of lightning deals, this year's trending products, and fast sellers, along with what will surely be increasingly unhinged commentary, check out our Amazon Prime Day liveblog, which will run from 5 am to midnight daily. How Does WIRED Spot Deals? We start searching for the best Prime Day deals weeks ...