The holiday shopping season reaches its peak when Cyber Monday deals roll around. Sales are often better than on Black Friday, but with every retailer promising the best Cyber Monday discounts, it can be tricky to work out what deals to snag and when to pass. Luckily, we have done the hard work for you. WIRED reviewers try countless gadgets, tools, and digital delights of all kinds every week, and we have developed smart shopping tips and tricks to weed out fake discounts and bring you the real deals. We can say with confidence that these are the absolute best Cyber Monday deals you're going to find. You will find regular updates as products go out of stock and prices change, and we'll keep scouring to find more deals worth grabbing. Updated November 27: We've added deals on umbrellas, mobile accessories, and more. We've also updated pricing and availability. We test products year-round and handpicked these deals. Products that are sold out or no longer discounted as of publishing will be crossed out . We'll update this guide through Cyber Monday. If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Just like upgrading the bed you sleep on, few things will improve your life like a good chair. If you park your body in front of a desk all day, it's a good idea to give the humble chair more attention. Some of our favorites are on sale right now. See our Best Office Chairs guide for more. Our top office chair pick is a bit cheaper right now. We've tested more than 35 office chairs in the past year and this is the one to get based on comfort, quality, adjustability, and price. At this price, you'd be hard-pressed to find a cheaper way to get seven points of adjustment. The only thing we don't like is that pet hair tends to cling, so keep a lint roller handy. The Zeph looks wonderful--there are dozens of color customizations--but the only adjustment you can make is to raise the seat up or down. You might think that would make for an uncomfortable chair, but it doesn't. This lack of adjustability is by design as the Zeph is designed to mold to your body. We do suggest you get the seat pad and arms, which add a smidge more comfort, though it does jack the price up a bit. The Zeph is compact, making it a great option for smaller spaces. The humble Hyken is our favorite budget office chair. It reclines, has a breathable mesh fabric on the back and seat, and it's sturdy.

Long gone are the days of camping outside Walmart after Thanksgiving, making small talk with strangers as you prepare to jostle them in the hopes of snagging a doorbuster deal. Swap the coat for pajamas and the tent for your couch--all of the best Walmart Cyber Monday deals are available online. You can even choose free in-store pickup to skip waiting for the mail to come. Updated November 27: We've added the Instax Mini 7, Vitamix 6500 blender, and an Anker Portable Charger. We've also updated pricing and availability throughout. We test products year-round and handpicked these deals. Products that are sold out or no longer discounted as of publishing will be crossed out . We'll update this guide through Cyber Monday.

The holiday shopping season reaches its peak when Cyber Monday deals roll around. Sales are often better than on Black Friday, but with every retailer promising the best Cyber Monday discounts, it can be tricky to work out what deals to snag and when to pass. Luckily, we have done the hard work for you. WIRED reviewers try countless gadgets, tools, and digital delights of all kinds every week, and we have developed smart shopping tips and tricks to weed out fake discounts and bring you the real deals. We can say with confidence that these are the absolute best Black Friday and Cyber Monday deals you're going to find this weekend. You will find regular updates as products go out of stock and prices change, and we'll keep scouring to find more deals worth grabbing. Updated November 27, 2022: We've added deals on umbrellas, mobile accessories, and more. We've also updated pricing and availability. We test products year-round and handpicked these deals. Products that are sold out or no longer discounted as of publishing will be crossed out . We'll update this guide throughout the Cyber Monday weekend. If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Just like upgrading the bed you sleep on, few things will improve your life like a good chair. If you park your body in front of a desk all day, it's a good idea to give the humble chair more attention. Some of our favorites are on sale right now. See our Best Office Chairs guide for more. Our top office chair pick is a bit cheaper right now. We've tested more than 35 office chairs in the past year and this is the one to get based on comfort, quality, adjustability, and price. At this price, you'd be hard-pressed to find a cheaper way to get seven points of adjustment. The only thing we don't like is that pet hair tends to cling, so keep a lint roller handy. The Zeph looks wonderful--there are dozens of color customizations--but the only adjustment you can make is to raise the seat up or down. You might think that would make for an uncomfortable chair, but it doesn't. This lack of adjustability is by design as the Zeph is designed to mold to your body. We do suggest you get the seat pad and arms, which add a smidge more comfort, though it does jack the price up a bit. The Zeph is compact, making it a great option for smaller spaces.

This time of year, all the cute Christmas decor and ornaments are out, which makes trips even more fun. Shopping on its website isn't as fun, sadly, but it's still packed full of holiday sales. Target's Black Friday and Cyber Monday deals have been live for almost every day of the month, but several discounts are even sweeter now. Updated on November 26, 2022: We've added some navigation, the Bose QC Earbuds, and checked over the entire post. We test products year-round and handpicked these deals. Products that are sold out or no longer discounted as of publishing will be crossed out . We'll update this guide throughout the Black Friday and Cyber Monday weekend. If you buy something using links in our stories, we may earn a commission. This helps support our journalism. The retailer is offering a price match guarantee this season. If you purchase an item in-store or online from now through December 24 and the price goes lower, you can request a price match.

As a promising solution for model compression, knowledge distillation (KD) has been applied in recommender systems (RS) to reduce inference latency. Traditional solutions first train a full teacher model from the training data, and then transfer its knowledge (\ie \textit{soft labels}) to supervise the learning of a compact student model. However, we find such a standard distillation paradigm would incur serious bias issue -- popular items are more heavily recommended after the distillation. This effect prevents the student model from making accurate and fair recommendations, decreasing the effectiveness of RS. In this work, we identify the origin of the bias in KD -- it roots in the biased soft labels from the teacher, and is further propagated and intensified during the distillation. To rectify this, we propose a new KD method with a stratified distillation strategy. It first partitions items into multiple groups according to their popularity, and then extracts the ranking knowledge within each group to supervise the learning of the student. Our method is simple and teacher-agnostic -- it works on distillation stage without affecting the training of the teacher model. We conduct extensive theoretical and empirical studies to validate the effectiveness of our proposal. We release our code at: https://github.com/chengang95/UnKD.

Intrigued by an Ars Technica post about Amazon's Alexa that suggested all was not well in the tech company's division that looks after its smart home devices, I went rooting in a drawer where the Echo Dot I bought years ago had been gathering dust. Having found it, and set it up to join the upgraded wifi network that hadn't existed when I first got it, I asked it a question: "Alexa, why are you such a loss-maker?" To which she calmly replied: "This might answer your question: mustard gas, also known as Lost, is manufactured by the United States." At which point, I solemnly thanked her, pulled the power cable and returned her to the drawer, where she will continue to gather dust until I can think of an ecologically responsible way of recycling her. I bought the device on 5 December 2016 (on the basis that one shouldn't pontificate on kit that one hasn't purchased oneself) and wrote about it in January 2017.

Intrigued by an Ars Technica post about Amazon's Alexa that suggested all was not well in the tech company's division that looks after its smart home devices, I went rooting in a drawer where the Echo Dot I bought years ago had been gathering dust. Having found it, and set it up to join the upgraded wifi network that hadn't existed when I first got it, I asked it a question: "Alexa, why are you such a loss-maker?" To which she calmly replied: "This might answer your question: mustard gas, also known as Lost, is manufactured by the United States." At which point, I solemnly thanked her, pulled the power cable and returned her to the drawer, where she will continue to gather dust until I can think of an ecologically responsible way of recycling her. I bought the device on 5 December 2016 (on the basis that one shouldn't pontificate on kit that one hasn't purchased oneself) and wrote about it in January 2017.

The giant TVs and high-end laptops might get the lion's share of attention on Black Friday, but the smaller tech devices are worth checking out too. We put the cap at $50 and came up with over 20 deals on inexpensive gadgets along with a few peripherals and accessories you'll need for this year's higher-end buys. Some gadgets are going for all-time lows, like the new Echo Dot. Others, like the Google Nest Mini and the Roku Streaming Stick 4K are half off their usual price. We added a few storage cards that are seeing big price cuts too, since you can never have too many of those.

Black Friday is finally here and if you haven't started your holiday shopping, now's the best time to do so. While we've seen some of our favorite gadgets go on sale since the start of November, today's the day you're almost guaranteed to find the best prices of the year across laptops, TVs, speakers, tablets, wearables and much more. But, as usual, the sheer volume of deals across the web today makes it even harder to pick out the gems among them. There are absolutely tech "deals" out there today that are not worth your time. To make ease the burden of deal-hunting, we collected the best Black Friday tech deals we could find right here.

Sonos makes some of our favorite speakers because you can seamlessly connect several throughout your home, all without having to wrangle with pesky cables. It started its Black Friday sales early, but they're still going strong. You'll find discounts on some of our favorite speakers, soundbars, and subwoofers. The sale runs through November 28. It's a great opportunity to build a surround sound setup.