Microsoft added "flashlight" function to Windows VR head-mounted camera

Headsets running Microsoft Windows Mixed Reality platforms, such as Acer, Lenovo and Samsung, can use the latest Windows 10 Insider version to access new features.

If your headphone does not test the voice command feature, you will need to connect a microphone, but the "MR Flashlight" can also be activated in other ways. This feature projects an intuitive view of the camera on the head display to any position on the controller.

You can open a real-world portal at any time via the Start menu, button shortcuts or voice commands. This will turn on the low-latency pass-through camera feed connected to the controller. It's comfortable, intuitive, and immersive.

The new Windows-based system allows people to interact with both realities at the same time. Using object recognition to start pulling objects from the real environment into the virtual environment is an interesting content. Unfortunately, there are no similar things in this update, but it is a direction for technology giants such as Microsoft, Facebook and Google. Make VR heads easier to use and safer in the next few years. This "MR flashlight" looks like Microsoft's first step.

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Samsung smartphone display 26 drops test "unbreakable"

What was your thought in the moment when the phone fell? The author has also witnessed many such human tragedies. Fortunately, it is natural that the corners are traced. It is unnecessary to say that it is a bitter. This is almost a problem for every smartphone user, so many mobile phone manufacturers are trying to stop this potential crisis.

Samsung is developing a new smartphone display, the main slogan is "unbreakable." Samsung’s display has just passed the certification of Underwriters Laboratories (UL), which says it can be used not only in smartphones, but also in cars, military equipment, portable game consoles, etc. The field is put into use.

The Samsung display mainly starts from two aspects, the durability of the substrate and the adhesion of the matching device. The manager of Samsung's electronic communication team said that because most of the displays will have a glass film, this layer of glass. The film usually cracks during impact, so in order to avoid this problem, the company's product does not use a glass layer.

The company uses a reinforced plastic layer that is also suitable for portable electronic devices. Compared to glass, the lightness, transmission and hardness are comparable, but they are stronger than glass.

UL confirmed Samsung's claim that UL has performed a rigorous real-time durability test based on military experimental standards developed by the US Department of Defense. This experiment was performed 26 times in a row, falling from a height of 4 feet (about 1.2 meters), and the results showed no damage. Then the experimental height was upgraded and dropped equally from the height of 6 feet, with the same result without any damage.

Samsung did not announce which smartphone the display will be installed on, but said it will soon meet consumers.

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Yu Chengdong feels heartache, Huawei Mate10Pro North American market price avalanche

This year, smartphones have always been an unforgettable topic that may be Huawei and the US market.

In order to enter the North American market, Huawei invested a billion yuan in the early stage, who can think of the end will be such an ending. In desperation, Huawei can only choose to sell its flagship model on the e-commerce platform, and Huawei this time to enter the US market, but the most flagship Huawei Mate 10 Pro this model. But sometimes efforts don't necessarily pay off, and the results disappoint everyone. There is no way for this irresistible factor. But in the early stage, you have to sell the goods prepared for entering the US market!

The latest news shows that some of Huawei's previous e-commerce platform in the US has begun to cut prices and clear inventory. Note that in the US Amazon self-operated store, the 6+128G version of Huawei Mate 10 Pro has been reduced by 300 US dollars (about 2,000 yuan), the current price is 499.99 US dollars, about 3384 yuan. Now this price should be the lowest in history.

The price of 3,384 yuan is about 1,000 yuan cheaper than the domestic one. Now the current price of the 6+128G version of the domestic Huawei Mate 10 Pro is still above 4,300 yuan. As the flagship of Huawei's flagship flagship in the United States for only 3,384 yuan, it is estimated that Yu Chengdong's heart is bleeding, but he can do nothing. If the goods are shipped back to the domestic market, the loss may be even greater, and it is probably the best choice when it is urgent to cut prices.

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Toyota's fifth-generation Supra is coming. It will be Toyota's last internal combustion engine power sports car.

Toyota announced last week that Supra will return in the NASCAR Xfinity Series series next year. The car that almost killed the 1969 Dodge Charger 500 in the hands of Paul Walker is a rare opponent of the Nissan Skyline GT-R.

From the birth in 1978 to the suspension of the fourth-generation model in 2002, Toyota Supra witnessed the rise of Japanese super-runs in the 1980s and 1990s and the decline of Japanese super-runs under the emission regulations of the early 21st century.

However, the fifth generation of Supra, code-named A90, has been determined to be back, and its production version information is gradually being exposed.

The fifth generation of Supra, which Toyota has developed with BMW since 2012, has always touched people's hearts.

At the Goodwood Speed ​​Festival, which was held last week, the Toyota Supra fifth-generation model was unveiled. The new car captures the front face design language of the previous FT-1 concept car and the overall proportion of the body. The front LED headlights are very unique in shape. The front and rear fenders and the short and high-pitched tails show a sense of movement, and the Toyota 86 of the same-door sports car. More sharp than that.

At the end, the fifth-generation Supra uses a triangular LED taillight, and the overall layout is very similar to the fourth-generation Supra. The upturned rear spoiler looks more pronounced from the rear of the car. The tail exhaust is a two-sided, two-out layout.

Inside, the fifth-generation Supra is equipped with a three-spoke multi-function steering wheel, silver shift paddles, electronic gear, full LCD instrument, central control large screen and so on.

According to foreign media reports, the fifth generation Supra will be equipped with BMW's B48 2.0T inline four-cylinder and B58 3.0T in-line six-cylinder two engines. The 2.0T engine has a maximum power of 262 hp, and the 3.0T engine has a maximum power of 340 hp. The BMW M240i and other 40i models use similar engine tuning.

Tetsuya Tada, a Toyota engineer who led the development of the fifth-generation Supra in 2012, said: “The acceleration of the fifth-generation Supra is almost the same as that of the Lexus F-series.” The Lexus GS F and RC F both use a 5.0-liter V8 engine with peak torque. 538 Nm.

“Although the power parameters are quite different, Supra will be about 300 kilograms lighter than the F series,” he added.

In fact, the 5th generation Supra's 0-100km/h acceleration time is only 4.5 seconds, 0.5 seconds faster than the GS F.

Although the fifth-generation Supra has a platform with the Z4, it will have its own chassis tuning. Gerald Killmann, head of Toyota's European R&D, said that most of the car's research and development work was done by Toyota in Japan. So its relationship with Z4 does not become a twin relationship between 86 and BRZ.

Tetsuya Tada said that Supra will use rear-wheel drive like the previous four-generation models, instead of the rumored four-wheel drive.

As the chief engineer of Toyota 86, he said that he will apply the experience of developing after-drive to Supra, and will design a 50:50 front-to-weight ratio, and the center of gravity will be lower than 86.

It is known that the body size of the new car is 4379×1854×1290mm, the wheelbase is 2469mm, and the weight is expected to be 1490kg. Compared with the fourth-generation Supra, it is a bit shorter, a little taller and a bit wider.

According to Shigeki Tomoyama, the boss of Toyota's Gazo Racing division, Toyota President Akio Toyoda also played a very important role in the development of Supra. He hopes Supra can have a more flexible tail.

Finally, the company revealed that the fifth-generation Supra will be Toyota's last high-performance sports car that does not use any hybrid system.

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Secret data leakage from more than 100 depots such as Tesla Volkswagen

PingWest products on July 23, quoted Lei Feng.com, security researcher of network security company UpGuard reported that more than 100 car manufacturers' confidential data was leaked, including General Motors, Fiat Chrysler, Ford, Tesla, Toyota, Volkswagen Wait. The source of the data leaks points to Level One Robotics, the common server provider for these depots, involving 47,000 confidential documents.

The leaked data includes a series of confidential information such as product design charts, consumer invoice contract information, and work development plans of the above-mentioned car manufacturer's detailed blueprint.

The above company uses a common file transfer protocol, rsync, for backing up large data sets. Since there is no security password protection set, users can access private data without access and connect to the rsync port. Any client has the right to download data. On July 10th, Level One took the off-line offline method to temporarily cut off the leaked path.

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TSMC's performance in the second half of the year will rise sharply: each processor is the focus

TSMC's revenue in April-June continued to decline, which caused investors to worry that the impact of the off-season cycle in the first half of the year, smartphone shipments were not as expected, and the collapse of the digital currency market also led to the decline of ASIC chips, affecting the performance of TSMC. However, in the two quarters of the second half of 2018, TSMC's Q3 and Q4 quarter revenues are expected to continue to grow, mainly due to the smart phone season in the second half of the year, Apple will mass produce 7nm A12 chips, Huawei HiSili will also launch 7nm Kirin 980 chip, NVIDIA's next-generation GPU will also be shipped in Q4.

In the past June, TSMC's revenue decreased by 13% from the previous month. The total revenue in Q2 decreased by 6%. The revenue was NT$233.28 billion, equivalent to US$7.63 billion. The decline was mainly due to the bite mainland mining machine. The chip and NVIDIA's GPU chip orders declined. However, in the second half of the year, TSMC's revenue will continue to rise. Digitimes quoted industry insiders as saying that the processors used in the new iPhone and Huawei Mate series phones have already started mass production. The revenue of TSMC in Q3 and Q4 will resume continuously. Growth, in which Q3 quarter growth is relatively mild, Q4 quarter will reach the highest level in history.

The processor used by Apple's iPhone is still the main growth driver of TSMC. This year, Apple will launch three iPhones, and the processor will be upgraded to A12, which will use TSMC's 7nm process.

TSMC predicts that iPhone handset processor shipments will peak between October and November, but sources say TSMC will also OEM Huawei's Kirin 980 processor, which is also a 7nm process and is expected to be in the Mate 20 series. Starting on the phone.

In addition to orders from Apple and Huawei's mobile phone processors, NVIDIA's next-generation GPU orders will also become the growth driver for TSMC's Q4 quarter. For us, this news is actually more interesting. What is the NVIDIA chip in Q4? At the end of August this year, NVIDIA is said to release a new 12nm process Turing graphics card. It is reasonable to say that the stocking peak should be in the Q3 quarter. If it is a 12nm process chip, it is unlikely that the shipment will peak in the Q4 quarter.

Digitimes also broke the news that TSMC will produce 7nm chips for NVIDIA in Q4 quarter, but it will not be released until early next year. This stocking cycle is much more reasonable.

There are many different opinions about NVIDIA's 7nm chips. The existing analysis believes that the GPU released in Q3 is based on the 12nm process. Both the Volta architecture and the Turing Turing architecture are the same, but there are also sporadic reports that NVIDIA will skip the 12nm process node. Directly introduced 7nm process chip.

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Samsung chip technology once again broke through, the three major memory chip industry layout completed

Last year, Samsung’s memory and flash memory prices soared, and the revenue was quite good. Of course, this is related to Samsung’s own strength. After all, Samsung is the largest market share of memory and flash memory. In terms of technical strength, Samsung is second to none in the world. Today, Samsung announced that its fifth-generation mobile products have been developed with memory, that is, LPDDR5 memory chips. In addition to mobile products, Samsung has achieved technological breakthroughs in DDR memory and graphics card GDDR memory in the computer field.
In December of 2017, Samsung's sixth-generation memory chips were mass-produced. In February of this year, Samsung's fifth-generation computer memory chips were mass-produced, and now mobile products are mass-produced with fifth-generation memory chips. In the three major areas of memory chips, Samsung has achieved breakthroughs in technology. In fact, on the fourth generation of LPDDR memory chips, Samsung is the first to achieve mass production. After four years, Samsung has taken the lead in mass production on the fifth generation, which has increased the speed of the chip by 1.5 times, but the power consumption has decreased. 30%.

Faster speed, lower power consumption, this is undoubtedly the biggest boon for mobile products, especially in the current rapid development of 5G and AI technology, such memory chips will gain market favor, especially consumption. In terms of power, it is especially important for mobile products, and Samsung also admitted that 5G and AI will be the main application scenarios of its chips.
At present, Samsung's factory in Pyeongtaek is making full efforts to produce LPDDR5, GDDR6 and DDR5 DRAM chips. It is foreseeable that Samsung will have a good year of revenue this year.

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A number of Ferraris are produced by it. The company is now building a $2 million electric sports car.

Whether it is Lamborghini, Ferrari, or Porsche, a large number of highly beautiful and powerful high-end sports cars that emerged in the world in the late 20th century are many people's favorite. They represent more than just a sports car. People are more a symbol of wealth and status, but at the same time, the high astronomical price tag attached to these luxury sports car brands is naturally discouraged by many people, but with a large number of equally powerful performances, it also has a curvaceous beauty. With the advent of electric supercars, the advantages of these traditional luxury car brands do not seem so obvious.

As an old Italian car designer, Pininfarina was founded in 1930. It has designed a variety of Ferrari and Lamborghini sports cars, and the design brand that has been over 90 in recent years has also been announced. Entering the fast-growing luxury high-end electric sports car industry, it is working on a PFO super-electric sports car with a speed of 250 mph, which is also the first high-end design and manufacturing of Pininfarina. Sports car.

The current CEO of Pininfarina, Michael Perschke, mentioned in an interview with foreign media that the single-charge cruising range of this sports car will reach 480 kilometers. In the traditional luxury brand super sports car field, no company can reach it. For this goal, Perschke also said that the car can be filled with 80% of electricity in 10 minutes to 15 minutes, and its performance is super powerful, and the starting speed can reach 96 kilometers per hour in two seconds.

We can see from the image that this two-seat super sports car has a very cool curve design, two light strips are shot from the front of the car body, and the information transmitted by Pininfarina is very clear - this one is very Italian The style sports car will combine beauty and speed of light. The smoke signal may indicate that we are penetrating the upcoming electric car era, and let the electric car brand such as Tesla end the traditional gasoline luxury sports car. Also began to tremble.

In January of this year, Ferrari followed the Porsche Mission E Concept and the BMW i8 Roadster and announced the start of the electric supercar. McLaren also quickly followed the pace and announced that it is spending $2.1 billion to realize the electric transformation of the sports car. This time, Pininfarina's PFO electric sports car will take a step forward at the Geneva Motor Show in 2019 and will be officially launched in the second half of 2020. The company also said that it will show at this week's Monterey Motor Show. After this car model, it will officially begin accepting scheduled orders.

The company has also provided design for thousands of well-known luxury sports car brands such as Alfa Romeo, Maserati and Cadillac, and has recently transformed into a design for many new energy vehicles, such as the 2010 Nodo electric concept car, and H2 Speed. Concept car, this is a 2016 hydrogen-powered racing car, and this super-running design company was acquired by the Indian Mahindra Group in 2015. Since then, Ma Hengda has been hoping to create the Automobiliti brand, using electric cars to take Pininfarina from Pininfarina. The sports car industry has pulled back to the center of the stage, and now Automobiliti Pininfarina has developed well. This week they also announced that formula Formula One and Formula E's famous racer Nick Heidfeld will join the company's R&D leadership team. .

Pininfarina is also actively seeking partnerships with other large technology companies to strengthen the hardware inside of their cars. CEO Perschke also said: "We hope to attract like Larry Ellison (Oracle CEO) Customers, and working with technology companies like Apple, Google and Salesforce to integrate more new technologies into our systems, software apps like in-car entertainment systems can help our sports cars become more versatile and provide users with more Interesting ride experience."

But to convince customers to choose the high-cost electric sports car from Pininfarina, in addition to the long-standing historical reputation, the company certainly needs to come up with some unique advantages, and Pininfarina has always been aesthetic and artistic. Fortunately, the classic classic car Cisitalia 202 is the first sports car to be recorded in the Museum of Modern Art Permanent Collection. Its chief designer Luca Borgogno said that for Pininfarina, the aesthetic design is the most Important, but we don't want our sports car to be over-engineered, but to achieve a simple yet perfect state.

In order to build this PFO electric sports car, Perschke also said that it will cooperate with many electric vehicle companies, suppliers and assembly partners to conduct in-depth research and exploration on hydrogen energy and electric energy vehicles, and between 2023 and 2025. To truly create a brilliant luxury electric super sports car brand, to achieve this purpose, Pininfarina also needs to sharply grasp the psychology of customers.

If the trend and era of electric vehicles are coming, the key components of traditional gasoline vehicles will disappear, and the cost of electric vehicle battery technology and lightweight body-building materials will begin to decline after a large number of high-end electric vehicles. Maintaining such high prices is clearly unacceptable to many consumers. By then, what will these traditional luxury brands rely on to maintain their high-end image?

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Dubai Air Taxi, Super large UAV with 18 propellers

Dubai conducted the first test of the “UAV Taxi” concept service. It hopes to use a huge drone as an air taxi to provide air taxi services for the already crowded Dubai traffic to ease ground traffic pressure.

This is a drone that looks like a drone in China. It is only a hundred times the size of a large UAV. The huge white body is a passenger compartment. It can carry 2 people. It should be noted that this is 2 Passengers, not pilots.

Above the passenger compartment is a beam structure similar to the DJI UAV, with a total of 18 rotors. The aircraft made a five-minute flight on a bay beach. The United Arab Emirates Crown Prince Sheikh Hamdan bin Muhammad watched the test flight of this "unmanned aerial taxi"!

Dubai is the capital of the UAE and a very modern city. Dubai's urban construction is moving towards a smart city, so drones and robots are at the heart of its plans. Dubai has positioned itself as the smartest city in the world, and ambitiously hope that by 2030, autonomous vehicles will account for a quarter of the world's total travel. They are not satisfied with self-driving cars, and now they are starting up with autonomous vehicles!

In fact, this drone was not designed by the UAE itself, but by Volocopter of Germany. The company expressed the hope that the unmanned taxi in the air would be put into operation within five years.

The company's CEO, Florian Reuter, said: "In terms of implementation, you can use your own smartphone, have an app, and book an air taxi to pick you up, then carry You go to the next destination."

Although this large aircraft has a crew cabin, it does not have a driving device. All the flights are operated intelligently. The mobile APP will plan the flight route for them, and then the taxi will take you to the target location!

Noel Sharkey, a computer scientist and robotics expert at Sheffield University in the United Kingdom, said that the biggest challenge would be to other air taxis, buildings, and birds. Class and drone dynamic obstacle avoidance."

“Will the sky in Dubai become crowded?” The ground of the city may become a dark place full of conspiracy and mystery like “Blade Runner” and “Fifth Element”.

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The Swedish bank has let AI leave, and it seems that artificial intelligence will also face performance pressure.

If you have been worried that future work may be replaced by artificial intelligence, then this news may make you not afraid

According to the Swedish media DAGENS INDUSTRI, a Swedish online bank, Nordnet, is preparing to “lay off” its own AI employee, Amelia. The most direct reason is that the performance of the AI ​​assistant failed to meet expectations, and the cruelty of the financial industry is evident.

In the summer of last year, Nordnet invited Amelia, the world-renowned AI assistant, to work with normal staff. Its job is to help customers speed up their business, help customers complete their accounts, and improve customer satisfaction. It is reported that Ameila can recognize words and phrases in more than 100 languages.

"But it didn't do both," said Nordnet CEO Peter Dahlgren. "We have brought new attempts to our customers, and the customer's response is OK, but it has not received overwhelming praise, so in the short term we It is possible to invest AI technology in other businesses."

The investment in AI technology has also brought greater costs to Nordnet, according to which Nordnet's 2017 operating profit was SEK 247 million, the lowest since 2012.

The AI ​​assistant Amelia adopted by Nordnet is not a self-developed artificial intelligence assistant, but a product launched in 2017 with the American technology company IPsoft. This veteran service provider has a 20-year history of innovation, taught by New York University. Founded by Chetan Dube, IPsoft's AI system ranked first in the world last year.

Amelia is considered to be one of the best AI systems in the world and is currently used in the medical and financial industries.

Although it suffered a defeat in Nordnet, overall AI technology is still widely optimistic, including Credit Suisse and Swedish SEB Bank also “hiring” IPsoft's Amelia Smart Assistant. Unlike Nordnet's helplessness, SEB is a tribute to Ameila, and SEB has won the AI ​​Industry Award for its performance.

It seems that artificial intelligence also appears to be "unemployed", but like human employees, if AI is facing the "unemployment" dilemma, either its performance is not up to expectations, or it will be stronger and smarter. Replaced by AI technology.


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In Netflix's algorithmic world, film critics and five-star scoring have become redundant.

Last month's biggest shock in Hollywood was Netflix, a $160 billion streaming media giant, who surpassed the $158 billion Disney at the time and became the real king of entertainment. The battle between Silicon Valley Technology and traditional Hollywood. Small and medium wins.

Netflix has nearly 130 million global subscribers. It not only uses "algorithms" to create content, but also uses "algorithms" to keep users at home and watch content on their own platforms one by one. This has been a tradition for cinema lines. The distribution channel has had a fatal impact.

The life of the release is not enough, Netflix also has to change the life of the opinion leader - the user's subjective comment is not important!

In the past few years, the Internet company has had a premeditated, planned, and step-by-step weakening of "subjective reviews." At the end of this summer, Netflix will completely abandon the "user reviews" feature.

What is the logic behind Netflix's move? How does it affect the future trend of Internet content?

Replace “Five Stars” with “Yes/No Votes”

Initially, the user evaluation system on Netflix was divided into two categories, namely, “Popular Review APP” and “Douban Movie”, which are familiar to us: “Five Stars” and “User Film Review”.

“Five-Star Rating”: The audience uses five stars to rate TV shows or movies;

"User Critics": After viewing the content, viewers can write subjective comments of 80-1999 characters.

In April last year, Netflix replaced the "five-star scoring" system with a simpler and more rude "thumbth up/down" like system.

The user's judgment of the content is only "thumbs up - good" or "thumb down - bad".

Netflix says the product's inspiration is matched by the left and right sliding algorithms on the dating site. The product manager believes that a percentage-based evaluation system can provide viewers with a more effective selection reference.

This change brings two practical benefits:

First, the fuzzy area of ​​user evaluation is removed, making algorithm learning more efficient:

In order to highlight their own viewing quality, some users have "three stars" for their favorite works. The meaning of these is ambiguous to humans, and the machine learning is less efficient. The "black" or "no" judgment is used to eliminate the gray area.

Second, let the user's feedback no longer "tangled", lower the feedback threshold, increase the number of feedback users, and the machine learning results are more accurate:

Relative to the five options of “five stars”, “whether” or two options are easier and closer to instinct; thus users prefer feedback and help increase the sample size of participating users, which can increase the accuracy of machine learning. .

A Netflix report shows that the "thumbs up/down" system has increased user ratings by 200% during the beta.

Netflix believes that the role of "five-star scoring" is overrated, and it is more suitable for those who have a lot of free time to brag about their views online:

“Give a clear signal and let me know that you are interested in this content, we will be able to better understand your preferences and recommend more similar content to you;

Use the downward thumb to tell us that you are not a fan of this content, it will no longer appear on your homepage.

The direction of the thumb helps us understand and learn your unique taste, so that we can recommend your favorite story more intelligently. ”

Kill that annoying movie review

After abolishing the "five-star", Netflix started the "user reviews": as of July 30 this year, you will not be able to write new reviews in the comment area; by mid-August, you will not even see previous user reviews. Arrived.

A Netflix spokesperson told the media that because the use of the "user comment" feature continued to decline, the decision to completely remove it was made.

However, from the beginning Netflix seems to be less willing to let users leave subjective comments: Netflix's APP does not see the "comment" feature, only on the PC side; and the platform has never seriously developed this feature.

There are two real reasons for stopping User Video Criticism:

In the streaming mode, the importance of comments to the Netflix business has dropped.

During the DVD rental service period, user comments still make sense: after all, mailing a DVD takes two or three days. If the user receives a particularly ugly movie, it will take another two or three days to change one.

However, if you watch a bad movie on the Netflix streaming service, you can immediately stop it and replace it. The cost of trial and error is extremely low. It is better to look at other people's subjective evaluations than to move their fingers.

Netflix's self-made content has increased, and it is no harm to let go of the user's subjective film reviews.

Netflix is ​​no longer just a distribution channel for film and television content. Today it is a real production company.

"House of Cards", "Weird Story", "The Crown"... These are the original plays of real money, and the bad reviews and malicious word-of-mouth are the most intolerable of the film.

The use of "brushing negative word of mouth" on the Internet to lower program ratings or movie attendance is endless: the recent comedy star Amy Schumer's Netflix talk show has become a victim of "negative word-of-mouth bombing."

"Amy Schumer: Leather Special" online word-of-mouth wall inside the wall

Last year, Amazon's IMDB closed the user forum on the grounds that "they no longer provide a positive and useful experience for most users." Netflix may also feel the same.

In order to avoid being badly rated, Netflix decided to start with a strong first, and first of all these annoying film reviews - at least on their own platform.

For those who want to seriously watch the film review, there are countless sources outside: you can go to IMDB and rotten tomatoes to see the score, or go to the social platform to search for word of mouth, more real can also find some more subdivided professional media reviews.

Compared with professional fans, Netflix considers more of the feeling of “eat melons” – “user reviews” may not significantly increase ratings, and once a negative evaluation occurs, it will seriously damage the viewing data, which is not worth the candle.

So why keep this "time bomb" next to your own content?

The algorithm is the ultimate weapon of "low-dimensional strike"

Netflix is ​​now most dependent on the "percent match" algorithm based on your viewing habits.

The core standard of this algorithm is your personalized preferences (up and down), which are tailored to your interests and tailored to your expectations.

Netflix users enter their personal homepage, the first and third lines are algorithm recommendations

For example, if I am a sci-fi fan, I will often receive sci-fi and sci-fi movies recommended by the platform, and most of them are in line with my preferences.

Even if the content quality is not as good as expected, I will still click to watch it - because this is recommended by Netflix, the cost of trial and error is so low, why not try it? Big deal, "thumbs down" afterwards.

Netflix will also provide "friends' favorite programs" for your reference: you can see "10 of your friends also like "Fable Story"" below the show, which is more lethal than strangers' random comments.

It is somewhat similar to the presentation logic of the WeChat public article and is an attempt to "socialize content."

However, the most frustrating drawback of the Netflix algorithm is that it will make the audience very passive - sitting there, waiting for the system to "feed" to its content; in the long run, the user's initiative in content selection may disappear," The ability to jump out of the preferences framework will also be lost, and the user's cognitive system will become single and full of prejudice.

As the world's most acclaimed media giant in the capital market, Netflix did not hesitate to stand up for the "algorithm" and speed up the road on the algorithm paved.

At this point, Netflix is ​​developing a more expensive subscription service, Ultra (superuser), with a monthly subscription fee of nearly $20, which allows an account to simultaneously "stream" Ultra HD content onto four terminal devices.

Netflix, a barbaric Internet company, needs a simpler and clearer way to improve the efficiency and value of the platform. There is no time or energy.

More exciting content, focus on Titanium Media WeChat (ID: taimeiti), or download Titanium Media App.

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Bitcoin has a natural economic flaw and it is never possible to replace gold.

If you believe that Bitcoin has the power to replace the traditional global financial system, then an economic analyst here will give you a blow to your beliefs.

When discussing digital currency, the main players were liberals and computer geeks, but the popularity of cryptocurrency has attracted the attention of scholars, such as University of Chicago scholar Eric Budish. In the latest report, Eric Budish evaluated the Bitcoin incentive system, and he concluded that if Bitcoin wants to have a significant impact on the economy, it will certainly encounter many inherent economic constraints.

Some "bitcoin majority members" (who want digital currency to crowd out all competitors) believe that bitcoin is like gold: it has storage value, although efficiency is not as high as real money. Budish said that if Bitcoin is really close to gold in value, then people will attack the Bitcoin network for profit.

Before we join the debate, we need to understand the background: in the past year or so, the size of the Bitcoin market has swung between $100-200 billion. The value of the gold reserve is about $7.5 trillion. Therefore, from the digital point of view, Bitcoin has far less influence on the economy than gold.

Budish believes that its influence will never be comparable to gold. why? Because even if the specification becomes large enough, it cannot be tolerated due to the design constraints of Bitcoin.

The security of Bitcoin stems from the competition of members of the blockchain network (ie miners). Every miner is looking for opportunities to add new deals to the blockchain to get Bitcoin in return. Miners use powerful computing power to fight for complex digital problems. An attacker can't beat the system unless it has a powerful computing system that can smash the system and manipulate transaction records. If so, the attacker can reuse the same bitcoin. Such attacks (known as Majority Attack, most people's attacks) are the biggest threat to Bitcoin, but for now, mining is more profitable than subversion systems, so the system is temporarily safe.

But Budish believes that this protection mechanism is costly. In order for the Bitcoin network to function properly, the power consumed is similar to that consumed by Ireland. Although in theory, the value of Bitcoin can be continuously added, there is no limit, but the security of the blockchain can only be linearly enhanced, and more computing power will be added to the network. This security mechanism is not the same as other forms of security, such as the cryptographic mechanism used by traditional financial systems. The traditional method is equivalent to adding a lock to the door, and the protection cost is relatively low.

According to Budish's calculations, today the Bitcoin blockchain is running at about $100,000 per 10 minutes, but the cost of attacking the system is about $1.5 billion to $2 billion. Why is the attack cost so high? Mainly because the current bitcoin mining work is mainly from the chip, these chips are used exclusively for mining, there is no way to do other things. If an attack is launched, the price of Bitcoin will be greatly reduced, and the value of bitcoin held by the attacker will be reduced. If someone just wants to destroy Bitcoin and does not seek profit, there is no way to stop it.

Budish's report is supported by other economists, but cryptocurrency enthusiasts do not agree. BlockTower Capital co-founder Ari Paul said Bitcoin's survivability is indeed likely to be limited because the cost of stopping damage is too high, but it has been discussed for a long time in popular web forums. He believes that the report did not add new data or new logic to the discussion.

Joshua Gans, an economist at the University of Toronto, believes that online discussion lacks scientific rigor. He also said that economists have just been involved in the discussion, Budish has integrated all the factors, research is quite rigorous, which can benefit the entire research community, such research methods will make science to the next level.

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Nespi case está diseñado específicamente para la Raspberry PI 3, 2 y B +, con botones funcionales de potencia y RESET.

The world's first 3D printing car, has not produced tens of thousands of orders

In recent years, the most popular technology can be said to be 3D printing. When many people are still lamenting this technology, some people have used 3D printing technology to print out a car. You should never think it is a car model. But the real car that can drive on the road. The car was made by a Chinese company and an Italian car company using 3D printing called LSEV.

The car's 3D printing technology is visible in all visible parts except the seat, glass and chassis. Its size is very similar to Smart. This car is very environmentally friendly and intelligent. Its body is made of high-grade environmentally friendly materials, which is very suitable for the current zero pollution standards.

The plastic parts used in this car have been reduced from the original 2,000 to the current 57, greatly reducing the pollution and consumption of the car. The car uses a lithium iron phosphate battery as the power source, which can last up to 15 kilometers and the fastest speed can reach 7 kilometers.

Because of the use of 3D printing technology, the car has less than 450 kilograms without a battery, and the time to build the car is less than three days. Although it has not yet been officially mass-produced, it has already received near abroad. Ten thousand orders, it is expected to officially put into mass production in April next year.

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There is no secret in the World Cup: Someone squats in the corner and quietly reads the player's lips.

Halfway through the World Cup, the brutal knockout is about to enter the quarterfinals. Compared to the passion of the players in the field and the enthusiasm of the fans, the off-site reports on each team are also dizzying. One of the most curious, it is probably some conversation between the coach and the players.

For example, the penalty shootouts in Spain and Russia. When the Spanish coach Jero decided to let Cork kick the penalty, Costa expressed disagreement and repeatedly exchanged with Jero, Cork and captain Ramos. However, this is not very useful. Cork still kicked the third penalty and successfully lost the penalty, which led to the end of the World Cup in Spain.

A similar situation occurred when the group match Argentina 1:1 temporarily settled in Nigeria, Sang Baoli went to ask Messi whether to go to Aguero, only to see Messi nodded, then Aguero was replaced.

The problem is, as if we watched the ball in addition to the shouts of the fans on the scene, the most heard is the sound of playing football. The communication between the coaches and the players is only seen by others. How did those TV stations know what they said? Is it an interview in the background?

of course not. In fact, it is very simple to understand what they are saying, that is, the mouth shape. The formal saying is: read lip language.

Does it sound so high?

From "manual era" to AI.

The use of lip language is to help people with hearing impairments to obtain language information and let them live a normal life. In this sense, it works equally well in sign language. But unlike sign language, reading lip language is a very difficult task, and even if you try your best to practice it, you don't necessarily learn something.

Learning lip language first has good eyesight. Legend has it that the British professional lip language cracked Queen Jessica said that she can crack the contents of others by reading the lips 40 meters away.

It is precisely because there are few people in control, and there are not many people in reality. Reading lip language has become a mysterious and tall thing. In this era, we can turn it into a "manual era" of lip language.

In the past two years, the long-term lip language that relies on personal efforts to maintain the status quo suddenly became a fire, and it seems that it has become a simple matter overnight. The root cause of this phenomenon is the development of AI visual recognition technology. Perhaps we can call it the AI era of lip language recognition. For example, in Machine Ji, the robot Eve reads the mouth movements of Nathan and Jiale to identify the content. So, what is the performance of AI recognition lip language in reality?

From a technical point of view, reading lip language is suitable for AI. Through the capture of the continuous movement of the speaker's mouth, and then matching it with the pronunciation of the word, and finally through the correction, the most coordinated sentences of action, pronunciation and semantics are obtained, thus achieving the cracking of the lip language.

For example, in 2016, Deepmind and Oxford University launched the AI lip language recognition system. By training the system for more than 5,000 hours and 11,800 news videos, it achieved a 46.8% recognition accuracy rate in the final video test, compared with 12.4% for humans. This gap can be said to be quite obvious.

What is certain is that, with the continuous improvement of visual recognition technology, lip recognition will soon be transformed from a legendary "secret" into a daily tool that everyone can equip. But is it really easy to turn a lip language into a universal language aid?

Reading lip language is not easy for people, AI is also like

We know that the deep learning of AI is based on a large number of related materials, such as Deepmind training an AI of lip language recognition, the total duration is 5,000 hours, and the recognition success rate is less than 50%. However, for the current identification, this is already a very good data. After all, the top human lip recognition experts have a success rate of more than 10%. So, since lip recognition is so difficult, what problems should AI need to pay attention to when it wants to take it?

First, we must solve the problem of inconsistent mouth shape. The problem of inconsistent mouth is reflected in two aspects.

On the one hand, because of the difference in pitch, not all people will produce the same action when they send the same syllable. This action may be difficult to detect from a human perspective, but from the time of AI that is good at identifying micro-expressions, a slight difference in motion may cause misjudgment. For example, a fool is unclear, and people sound hard, not to mention lip recognition.

On the other hand, the same language may have different pronunciation patterns due to different regions. Then, in identifying the dialect, the troubles encountered by AI are not small.

Second, the tone of AI lip language recognition. Since it is to identify the content of the speech, it is inevitable to involve the tone of the speaker. The same word, the same sentence, may also have different semantics due to the different tone of the speaker. Simply recognizing the speaker's language content will limit the function of lip language recognition. How to unify the speaker's expression, movement, scene and other factors related to expression into lip language recognition is also a problem to be considered.

Third, in many cases we don't need a humanoid robot. We don't have to make lip recognition a know-how. When training, we can carry out special material collection according to the specific scene used. For example, if the subway station automatically sells tickets, it only needs to focus on the training of the site name. This avoids the cumbersome work caused by invalid work in a specific scenario.

More importantly, language is a very large knowledge base. If you want to accurately recognize the lip language in various situations, massive voice and action training will be a time-consuming task.

Although the lip language is small, the potential is large.

There is no doubt that when the lip recognition technology is mature, its application prospects are very optimistic, such as the following aspects.

1. Security field. The home camera function and scene are relatively simple, and generally there will be a microphone for sound collection. However, in a larger number of outdoor monitoring systems, basically only the picture can be seen without sound. This is a big flaw in electronic surveillance. Then, after the introduction of lip language recognition, it is equivalent to technically making a sound. The content of the offender's communication in front of the camera will be captured, and this is likely to become an important clue to solve the case. The British police used Jessica's lip language ability to crack an airport robbery.

2. The field of medical health. The most primitive role of lip language is to help people with hearing impairments to communicate as normal people, but the cost of learning is undoubtedly huge and may take years or even decades. Even if vision and perseverance are not good, they can only communicate with very troublesome sign language. Then, with the help of lip recognition technology, hearing-impaired patients will not have to spend such learning costs and can communicate directly with normal people.

3. Real-time voice conversion is more accurate. Nowadays, whether it is real-time subtitles in smart courts or simultaneous interpretation in international conferences, it basically relies on pure speech recognition. Through the addition of lip language recognition technology, it will change from a simple "listening" to a "seeing" and "listening", which is more in line with the characteristics of human acceptance of language information. Therefore, the application of AI in real-time subtitles, simultaneous interpretation and other scenarios will be more mature.

In addition, using lip language to recognize speech will have a positive impact on the resolution of speech separation. Before the team separated the voice through the comparison of video and voice, lip language can become a point worthy of attention.

4. Promote the construction of multimodal Internet of Things. For example, the voice ticket introduced by the subway is to determine the arrival station and the ticket holder by double recognition of the voice and face of the passenger. Based on this, combining lip language recognition technology with speech recognition will open up a larger imagination for the construction of the Internet of Things. In the home Internet of Things scene, the entrance represented by the smart speaker can not only rely on the voice recognition command, but also add lip language reading to improve the accuracy of recognition. After all, watching people talking and closing their eyes to listen to others is very different for the recipient of the message.

But lip recognition is also a very vigilant technique. After all, nature limits the distance of vocal transmission, just to protect the privacy of individuals. Once the lip language recognition is rampant, everyone may have no more secrets. The first thing to talk about to pout and go home is to pull the curtains and drive the opaque car film... This kind of world may not be willing to wait.

In any case, lip recognition is a worthwhile technology. Although it is still immature, it is necessary to consider many real problems that are likely to have adverse effects in the future. However, when it shows positive meaning to human society, we should not refuse to give it a hug.

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The world's largest motor home, using solar and wind power to generate all the facilities

Many people like to travel, and they all like to travel by car. If there is a RV, then it would be better, even the money for accommodation can be saved. Recently, a company has launched a supercar scarbane, which has been paid attention to by many rich people around the world.

The car is uniquely designed to generate electricity from solar and wind energy because it is designed to be low-carbon and green. At the bottom of the car is an electric turntable that is designed to track the sun. There is a solar panel on the roof. There is also a parabolic receiver and a spherical window that absorbs more sunlight. So many energy harvesting devices not only provide the power of the car, but also provide lighting and power.

It was built using a 7.8-meter-long towed car, with two bedrooms and some other facilities unfolded on one side, and an outdoor deck on the other side. There is also a longitudinal axis wind turbine that can be telescoped. When there is no sun, there is wind power. Compared with many times, wind power is more regulated than solar power.

On one corner of the car, there is also a simple bar, next to the mini kitchen and dining table, and a variety of facilities, such as dishwashers, microwaves, refrigerators, bathrooms, washing machines, toilets and more. And it doesn't feel crowded at all, it's very suitable for short-term travel, is there something moving? But this car can't be afforded by ordinary people, and it can only be thought of.

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Collaborative Intelligence: The Combination of Humans and AI

Both humans and AI have their own advantages, and how companies redesign their business models will be the focus of future development.

Artificial intelligence has been involved in more and more human work, such as disease diagnosis, language conversion and customer service, and the speed of AI improvement is also amazing. Because of this, some people even think that AI will one day Substituting humans has become a major player in the economy.

The result is really like this? Can you avoid it? In fact, the greater impact of AI technology will be to complement and enhance human capabilities, not to replace them.

Many companies have used AI technology in automated processes, but for companies that only use AI to save staff costs, such practices are short-sighted and will not benefit in the long run.

The Harvard Business Review (HBR) conducted a study of 1,500 companies and found that among the companies with the highest performance levels, the work of employees and machines is combined.

That is to say, through the collaborative wisdom of humans and AI, including the leadership, teamwork, creativity and social skills of the former, as well as the corresponding speed, scale expansion and quantitative ability of the latter, the complementary advantages of each other are actively enhanced. It is.

For another example, it is a natural thing for humans to make jokes, but it becomes a tricky problem for machines. For machines, analyzing gigabytes of data is simple, and humans are almost It is impossible to complete.

Now that you know the benefits of human-computer cooperation, how to maximize this advantage becomes the next key point for the company to consider.

Human assisted machine

In this case, humanity will play three decisive roles: training, interpretation and maintenance.

First, they must train the machine to perform certain tasks. Second, explain the results of the task, especially when the results are not intuitive or controversial. Finally, make sure that the machine does not harm humans.

People must let the machine learning algorithm know how to perform the designed work, which requires a lot of test data. In addition, it is important to let the AI ​​system know what is the best form of interaction with humans.

Machine assists humans

In turn, from a machine perspective, its intelligence is helping humans expand their capabilities in three ways.

Specifically, it enhances human cognition; interacts with customers and employees, allowing humans to engage in higher-level work; and acquiring skills to extend human physical mobility.

American computer software company Autodesk's Dreamcatcher AI can provide more imagination for the best designers. GM also cooperates with this company to design a variety of unique and higher-performance auto parts through software.

Another application is from Microsoft's personal virtual assistant Cortana, which can record meetings and send them to participants who are unable to attend.

The virtual assistant Aida used by the Swedish bank SEB is similar. It can establish communication with millions of customers and can detect the tone of the other party. However, in the process of human-computer communication, about 30% of the problems are caused by the machine alone. In this case, Aida will be transferred to the manual service.

In manufacturing, automation equipment is evolving from potentially dangerous and “stupid” industrial machines to intelligent, environmentally sensitive cobots. For example, a cobot arm may handle repetitive actions that require a large amount of weight extraction, and the worker can perform additional tasks that require dexterity or human judgment.

Hyundai used to showcase an exoskeleton robotic device at the auto show that is said to allow workers to work with superhuman endurance and strength.

Redesigning the business

In order to get the most value from AI, companies need to redesign the process. To do this, companies must first identify areas of operation that can be improved.

Next, companies need to develop new solutions in the form of joint creation, the most important thing is to let shareholders know how to cooperate with the AI ​​system to improve operational efficiency. The third step of the company is to expand this scale and maintain a viable solution.

According to the analysis of HBR, there are five main aspects of the company's business processes that need to be improved: flexibility, speed, scale, decision making and personalization. This means that when redesigning a process, consider which one is the core transformation goal, how to use intelligent collaboration to solve the problem, and how to coordinate with other process characteristics changes.

The last point to make is that reimagining a business process involves not only the realization of AI technology, but also the commitment to ensure the development of personnel's “integration skills” so that they can cooperate in human-machine cooperation. Work effectively.

Human-computer interaction requires humans to use different new methods, and at the same time, make new ideas. However, at present, only a very small number of companies have begun to redesign their business processes in order to optimize human-machine cooperation.

But one thing is clear. Organizations that use AI technology only to replace employees will eventually miss most of the benefits they bring. Those who can become industry leaders will be those who know how to apply and transform AI technology. A company with the same level of importance as employees and machines.

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