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Xiaomi launches its own smart glasses, of course – TechCrunch

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Xiaomi challenges Facebook to launch unique smart glasses to the field. In addition to taking photos, the device can display messages and notifications, make calls, provide navigation, and translate real-time text right in front of you. Like Facebook, Xiaomi focuses on the lightness of the device despite its functionality. However, it weighs 51 grams, which is a bit heavier than social media. Ray-Ban Story .. In addition, the glasses also have indicator lights which indicate that a 5 megapixel camera is in use.

Xiaomi’s smart glasses are powered by a quad-core ARM processor and run on Android. It also uses MicroLED imaging technology, which is known to have higher brightness and longer lifespan than OLED. According to the company, the structure of this technology was simpler, allowing it to create compact screens with individual pixels of 4 m. However, it is not possible to display images taken in color – Xiaomi states that it has chosen to use a monochrome display solution “to allow sufficient light to pass through complex optics”.

The company explains:

“The etched lattice structure inside the lens allows light to be refracted in a unique way and safely direct it into the human eye. The refraction process bounces the rays countless times and is perfect for the human eye. You can see the picture, which greatly improves the ease of use when worn. It’s quite simple, rather than using the complex system of multiple, mirror or half-mirror lenses like other products. It is done with the objective of. “

According to Xiaomi, smart glasses are more than just a second screen for mobile phones. You can do a lot of things independently, like choosing the most important notifications to show, such as smart home alarms and important contact messages. The device’s navigation function can display a map and direction in front of you. You can also view the number of the person who is currently calling or use your smartglass’ built-in microphone and speaker to make a call.

The microphone can also pick up voice, and Xiaomi’s unique translation algorithm can translate in real time. The glasses translation feature also works for text and text in photos captured through the camera. Unfortunately, the company has yet to announce the price or release date for the glasses, but will keep you posted when they do.

Editor’s Note: This article was originally published Engadget ..

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How fast are algorithms improving?

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Scientists at MIT provide the first systematic and quantitative proof that algorithms are one of the most important sources of improvement in computing.

MIT Scientists show how quickly algorithms improve in various examples, demonstrating the critical importance of algorithms in computer advancements.

Algorithms are like the parents of a computer. They teach computers how to understand the meaning of information, and then allow them to do something useful with it.

The more efficient the algorithm, the less the computer has to work. For all of the technological advancements in computer hardware and for the many discussed lifetimes of Moore’s Law, computer performance is only one aspect of the big picture.

Behind the scenes, the second trend is happening. The improved algorithm requires less computing power. The efficiency of the algorithm may not get a lot of attention, but if a reliable search engine suddenly slows down by a tenth, or if moving large data sets feels like it’s going through mud. You will definitely notice.

As a result, scientists at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) asked: How quickly will the algorithm improve?

The existing data on this issue was largely anecdotal and consisted of case studies of specific algorithms believed to represent a wider range. Faced with this lack of evidence, the team set out to process data from 57 textbooks and over 1,110 research treatises to trace the history of algorithm improvement. Some research treatises directly report the quality of the new algorithm, while others have been reconstructed by the author using “pseudocode”, an abbreviated version of the algorithm that explains the basic details. I had to.

The team examined a total of 113 “algorithm families”. This is a set of algorithms that solve the same problems that have been highlighted as the most important in computer textbooks. For each of the 113, the team reconstructed its history, tracked each time a new algorithm was proposed for the problem, and paid particular attention to a more efficient algorithm. From the 1940s to the present day, the team has a wide performance spectrum, broken down into decades, and has found an average of eight algorithms per family, two of which improve efficiency. To share this assembled knowledge database, the team also created Algorithm-Wiki.org.

Scientists have illustrated how quickly these families have improved, focusing on the most analyzed function of the algorithm, how quickly it can be guaranteed to solve the problem (IT speaking). For example, “worst-case time complexity”). What emerged was not only great variability, but also important information about how transformative algorithmic improvements were made to computing.

For large-scale computational problems, 43% of the algorithm family saw improvements equal to or greater than the many advantages of Moore’s Law. In 14% of the problems, the performance gains from the algorithms far outweighed the performance gains from the hardware gains. These advancements have become more important in recent decades, as the benefits of algorithmic improvements have been particularly important for big data issues.

The single most significant change observed by the author occurred when the family of algorithms went from exponential complexity to polynomial complexity. The effort required to solve an exponential problem is like a person trying to guess a lock combination. If you only have one 10-digit number, it’s easy. With four dials like a bike lock, no one can steal your bike, but chances are you can always try all the combinations. At 50, that’s almost impossible – it takes too many steps. Problems of exponential complexity are similar to those of computers. As problems multiply, computers quickly exceed their ability to handle them. Finding a polynomial algorithm often solves this, allowing you to solve the problem in a way that cannot be improved by hardware.

As the roar of Moore’s Law, which comes to an end, quickly permeates global conversations, researchers must increasingly look into areas such as algorithms to improve the performance of computer users. Is called. According to the team, the results confirm that historically the benefits of the algorithm have been huge, so the possibility is there. But if they benefit from algorithms rather than hardware, they are different. Moore’s Law hardware improvements run smoothly over time, and algorithms typically benefit from significant but rare milestones.

“This is the first article to show how quickly the algorithm improves in a wide range of examples,” said Neil Thompson, researcher at MIT and lead author of the new article at CSAIL and the Sloan School of Business. I am. “Through our analysis, we were able to tell how many more tasks could be done with the same amount of computing power after improving the algorithm. The problem is billions or trillions of data. As this increases, improvements in algorithms are practically more important than improvements in hardware. In an age of growing concern about the footprint of the IT environment, this has no problem for businesses or other organizations. It’s a way to improve. “

See also: “How fast is the algorithm improving?” »Yash Sherry and Neil C. Thompson, September 20, 2021 IEEE minutes..
DOI: 10.1109 / JPROC.2021.3107219

Thompson wrote a treatise with Yash Sherry, a visiting student at MIT. The article is published in IEEE minutes.. This work was funded by the Tides Foundation and the MIT Digital Economy Initiative.

How fast are algorithms improving? Source link How fast are algorithms improving?

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Best home theater systems of 2021

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Vizio Elevate soundbar lifts the roof with Dolby Atmos

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If you want to upgrade the sound of your TV, there are a lot of options available, but first you need to decide to buy. Sound bar or home theater system.. There is nothing better than getting the best possible performance. AV Receiver And multi-speakers Dolby Atmos For setup, if you want something simple and affordable, the Soundbar is the answer.

The soundbar is compact and offers plenty of performance in an affordable package. You can also get one with advanced features like Atmos and Wi-Fi streaming. One of the things that isn’t usually possible is the ability to upgrade them. However, some sound bars are paired with an optional separate subwoofer and rear speakers. If you want to use a combination of speakers, the AV receiver is the best choice.

The receiver offers a lot in a fairly bulky housing, and unlike the soundbar, it has a large number of HDMI inputs to accommodate many different sources. speaker As you can see, adjustment is also an attractive hobby. Surround sound The system, at least not at first. I used a pair of Marantz receivers and Bowers and Wilkins floorstanding speakers in a stereo-only home theater system for about five years, and didn’t feel like I missed them.

Whether you choose the soundbar or the AV system route, you have a variety of options, including different combinations of cinema speakers or surround sound speakers. There should be something here for you. These are the best home theater systems available today. We update this list regularly as new options come to market.

When it comes to making money, it’s never better than the Roku Streambar home theater system. This speaker offers both a dialogue-enhancing soundbar and a 4K streamer integrated into a single housing. If you need more bass or surround speakers, you can upgrade your system as well. You can choose the speaker pack.

Read Roku Streambar’s review.

Sarah Tew / CNET

Initially priced at $ 1,200, the Klipsch Reference Theater Pack is now priced at a third party. Packed with powerful sound from a compact 5.1-channel audio system, this set is the perfect home theater option for your apartment or playroom. Great for movies and not bad for music. Just add a receiver.

Read a review of the Klipsch Reference Drama Pack.

Ty Pendlebury / CNET

If there’s one thing we settle for an affordable stereo speaker, the Bookshelf Speaker 3030 offers great movie and music playback for $ 469. Between $ 350 Elac Debut 2.0 B6.2s Q Acoustics are much cheaper, more transparent, fairer, and have better bass response. This makes the 3030i more suitable for home theater situations, especially if you’re not using a subwoofer.

Read the Q Acoustics 3030i review.

Sarah Tew / CNET

It was a few years ago and I haven’t used 8K video, but frankly I don’t want to buy what I can do now. The Onkyo TX-NR696 continues to win CNET Editor’s Choice Award and has almost everything a receiver needs, including Dolby Atmos and Chromecast streaming. It is also wonderful.

Ty Pendlebury / CNET

Rotating speakers are cool, but the best Vizio soundbars we love the most are the sounds. This Dolby Atmos system includes a subwoofer and rear channel speakers, making it a hybrid between a receiver-based system and a soundbar.

Read the Vizio Elevate P514A-H6 review.

Sound United

I’m going to go out and say 8K compatible receivers are confused now. Currently, apart from the fact that 8K video is practically unavailable, it is affected by a bug that prevents playback of some 4K video sources. Still, future fixes, and there are workarounds, but if you need an 8K receiver right now, the Denon AVR-S960H is for you.

Read the Denon AVR-S960H review.

Sarah Tew / CNET

If you want the best Dolby Atmos performance from a single soundbar, nothing better than the Sennheiser Ambeo sound system. It’s not cheap, it’s not small, but it’s perfect if you want the best sound.

Best Home Theater Systems of 2021 Source Link Best Home Theater Systems of 2021

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Watch The Witcher Season 2 Trailer, First Previews, and Blood Origin Prequel Preview

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The Witcher was Netflix’s most popular new series at the time of its release.

Netflix

Season 2 of The Witcher officially kicks off with a trailer and two preview videos on Saturday. Netflix’s First Tudum Event.. Oh, and a monster fight series starring Henry Cavill has been confirmed in Season 3.

Netflix has seen another animated series set in the family animated series and the world of The Witcher, As if that wasn’t enough, as well as a behind-the-scenes teaser for the first series, The Witcher: Blood Origins. Fall.

Here is the trailer for season 2.

Check out the first glimpse of The Witcher as Gerald reconnects with his old friend Niberen:

In the second clip, it’s not just Ciri and Geralt …

And you can get a preview of the first part of the series “The Witcher: Blood Origin” guided by showrunner Declan de Barra.

After a long and difficult process Shooting during a pandemicIn Season 2, Henry Cavill’s Gerald and Freyja Allen’s Siri understand their new dynamic destined to meet as guardian and ward. The Season 1 spinoff is obviously still fresh, so it will take some time to figure things out. Back at Kaer Morhen’s The Witcher Heaven, the audience introduces all of the other The Witchers, much more talkative than dirty Gerald.

But, as always in the life of The Witcher, there are so many monsters and villains that we never rest for the villains. What about fan favorites Yennefer and Jaskie? I do not know yet.

Now you have to wait for it in Kaer Morhen until December 17th.


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