Neural network implemented with light instead of electrons

Can do basic character, object recognition.

Enlarge / Each of these layers shapes the light that reaches the one behind it, performing calculations in the process. (credit: Ozcan Lab, UCLA)

Neural networks have a reputation for being computationally expensive. But only the training portion of things really stresses most computer hardware, since it involves regular evaluations of performance and constant trips back and forth to memory to tweak the connections among its artificial neurons. Using a trained neural network, in contrast, is a much simpler process, one that isn't nearly as computationally complex. In fact, the training and execution stages can be performed on completely different hardware.

And there seems to be a fair bit of flexibility in the hardware that can be used for either of these two processes. For example, it's possible to train neural networks using a specialized form of memory called a memristor or execute trained neural networks using custom silicon chips. Now, researchers at UCLA have done something a bit more radical. After training a neural network using traditional computing hardware, they 3D printed a set of panels that manipulated light in a way that was equivalent to processing information using the neural network. In the end, they got performance at the speed of light—though with somewhat reduced accuracy compared to more traditional hardware.

Lighten up

So how do you implement a neural network using light? To understand that, you have to understand the structure of a deep-learning neural network. In each layer, signals from an earlier one (or the input from a source) are processed by "neurons," which then take the results and forward signals on to neurons in the next layer. Which neurons they send it to and how strong a signal they pass on are determined by the training they've undergone.

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Garmin Fenix 5S Plus review: So capable, so enviable, so expensive

Garmin demonstrates just how much a fitness wearable can do—for the right price.

Enlarge (credit: Valentina Palladino)

It may not look like it on the surface, but Garmin's new Fenix 5 Plus fitness watches are quite different from last year's models. Yes, they still have a design that tries to mesh sport and style as seamlessly as possible, but inside the 5S, 5, and 5X Plus models have much-needed new features.

Garmin Pay and music storage are now standard on the high-end smartwatches, making them better outdoor companions both when you're out for a run and when you run out for coffee and forget your wallet. All three also have onboard mapping that lets you discover new training routes while also helping you navigate unfamiliar areas without your smartphone. The top-tier Fenix 5X Plus even contains a pulse oximeter to help you avoid dangerous situations during high-altitude training.

All of this comes at a high price—the Fenix 5 Plus series starts at $699. But if you're a sports enthusiast, triathlete, or a Garmin fan, you probably could have guessed that. While ridiculously expensive for most, Fenix smartwatches have a reputation for offering exactly what some sporting people need to monitor their progress and push their training to the next level. The Fenix 5 Plus line is no exception.

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Badezimmerspiegel: Philips Hue kommt ins Bad

Philips hat mit dem Hue Adore einen Badspiegel vorgestellt, der über das Heimautomatisierungssystem Hue gesteuert werden kann. Das Licht lässt sich dimmen und im Weißton verändern. (Hue, Smart Home)

Philips hat mit dem Hue Adore einen Badspiegel vorgestellt, der über das Heimautomatisierungssystem Hue gesteuert werden kann. Das Licht lässt sich dimmen und im Weißton verändern. (Hue, Smart Home)

Apple: iPad Pro künftig kleiner und ohne Kopfhörerbuchse

Es wird allmählich Zeit für neue Ausgaben des iPad Pro. Offenbar soll die nächste Gerätegeneration kleiner werden. Dank schmalerer Ränder soll es bei der Displaygröße aber keine Änderungen geben. Der dedizierte Kopfhöreranschluss wird wohl gestrichen. …

Es wird allmählich Zeit für neue Ausgaben des iPad Pro. Offenbar soll die nächste Gerätegeneration kleiner werden. Dank schmalerer Ränder soll es bei der Displaygröße aber keine Änderungen geben. Der dedizierte Kopfhöreranschluss wird wohl gestrichen. (iPad Pro, Apple)

Origin Access Premier: EA-Flatrate für Battlefield 5 und Fifa 19 geplant

Alle aktuellen PC-Spiele ohne Beschränkungen für 15 Euro im Monat und mit fünf Tagen Vorsprung: Electronic Arts will Ende Juli 2018 seinen schon länger angekündigten Abodienst Origin Access Premier an den Start bringen. (Electronic Arts, Games)

Alle aktuellen PC-Spiele ohne Beschränkungen für 15 Euro im Monat und mit fünf Tagen Vorsprung: Electronic Arts will Ende Juli 2018 seinen schon länger angekündigten Abodienst Origin Access Premier an den Start bringen. (Electronic Arts, Games)

DI.FM Thwarts Pirates But Prefers to Focus on Great Electronic Music

DI.FM, also known as Digitally Imported, offers the most comprehensive selection of electronic music channels available online today. Available in ad-supported and premium flavors, the service has hundreds of thousands of users but until recently also had a piracy problem. TF spoke to founder and CEO Ari Shohat who surprised us with a pragmatic and refreshing approach to the situation.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and more. We also have VPN reviews, discounts, offers and coupons.

Anyone with a keen interest in electronic music styles will probably be aware of DI.FM, aka Digitally Imported. The service, which offers close to 100 channels of curated content, is a goldmine of classics and upcoming tracks covering every conceivable genre.

From Chiptunes to Deep House, from Bassline to Drum and Bass, DI has something for everyone. It’s available for free, ad-supported, or premium if people want zero adverts and high-quality streaming. Of course, premium models tend to attract pirates and DI’s experience is no different.

For several years, a Russia-based service known as DiForFree has, perhaps unsurprisingly, been offering DI.FM for free. All of DI’s channels were mirrored by the service, pumping out 320K audio via a web interface and an Android app. It’s unclear how many people used the pirate product but it’s safe to say that those who used it, loved it.

Back in May, however, DiForFree began to break down. At first, it was unclear why channels were disappearing from the service but a policy change at DI itself provided an explanation.

DI previously offered free premium trials via its site, a feature that was leveraged by DiForFree to obtain access to DI’s high-quality channels. With a switch to free trials only being offered via DI’s iOS and Android apps, DiForFree lost its source for accounts. On May 21, the pirate service announced that it may not be able to continue but was looking for solutions.

The real DI.FM

After a period of literal radio silence, in recent weeks DiForFree began to come back to life. It seemed that they’d solved the trial problem and last week, most if not all channels were working again. Then, during the past few days, everything shut down in a more dramatic way than before.

“You probably already noticed that nothing works. So, we were amused here on all fronts,” DiForFree told its users.

“Since May 25, we have been working on a paid subscription, but now they have an account that is automatically blocked when a certain number of connections are exceeded.”

Adding insult to injury, DiForFree reported that DI had discovered the IP address of the server it had been using to extract content. After that was blocked, nothing worked.

“Most likely this is the end. If we do not come up with anything, then the service will be closed, the code will be published on GitHub or somewhere else, and the domain will be sold and forgotten,” DiForFree said this week.

With things looking pretty final, TF spoke with DI founder and CEO Ari Shohat to find out more about the service and the issues raised by rogue services tapping its content.

“I started DI.FM (then called Digitally Imported) back in 1999. I was in college, and all I wanted to do was to share good music with others,” Shohat informs TF.

“It started with one channel, and evolved into what is now over 90 channels. We also plan on launching a Playlists section as well in the near future, further providing more varieties and combinations of great electronic music.”

So has a war been raging behind the scenes between DI and DiForFree? According to Shohat, not really.

“We haven’t been waging any war. We’ve just finally been getting around to plugging a few inefficiencies of which we were always aware,” he explains.

“All the methods that [DiForFree] (and others) have used in the past, we were aware of them from day one. They and some others started with abusing our free trial system, scripting things to start automatic seven-day trials, among other things. It’s just that to dedicate our limited resources on working around this would bring in diminishing returns, if any at all.”

Shohat says that while winning a battle here and there is possible, losing the war is a likely scenario since there are always people intent on getting something for free. So, instead of spending disproportionate resources on dealing with pirates, the company chose to do what it does best – service its legitimate customers.

“We were focusing on our needs and other development items for actual real users who were happy to use our service as it was, rather than go on a wild chase wasting time. I wish the music industry back in the day took this approach as well, to let pirates do what they do without making a big stink and just work to make different services better and more available for all, to compete with piracy,” he says.

“Recently we found a bit more time, and finally did some of the changes we planned all along which we knew would limit this activity. As everyone knows, this is a constant ‘tug of war’.”

Shohat told us that he’s not pro-piracy and from a business perspective he doesn’t want people short-cutting his premium offer. That being said, he did hint at a grudging admiration for the persistence of pirates and assumes there are some really talented people behind operations like DiForFree.

On the piracy front overall, Shohat acknowledges that it’s not going away anytime soon but believes that a reluctance to innovate years ago fanned the flames under a problem that persists today.

“My outlook on these things is definitely through the prism of what happened in the Napster era. The record industry, it seemed to me, did everything it could to prolong its days of selling CDs rather than evolve digital. And so this meant going to war with ‘pirates’,” he notes.

“But I saw that so many of the people who pirated only did so because there were no legal alternatives – you could have your wallet open and there was no legal and/or good service which could serve your needs. Not only that, it seemed like until Apple they did everything they could to limit innovation and wouldn’t even work on making it happen. And even then they reluctantly went along with Apple. That is what pissed me off most of all.”

Shohat says that in respect of digital services, the landscape today is very different from the one back then. Digital revenues are on the rise but the turnaround could’ve happened so much sooner if the record industry had reacted earlier.

“In my opinion, this could have happened a decade earlier would they just focus on innovation and giving the users what they wanted rather than fighting piracy, which in the end turned out to be not that big a deal once good legal options existed.

“One way to look at piracy is like the canary in the coalmine, if you have a big piracy problem then something is wrong with what you are doing – either your process sucks, you have leaky buckets, or your service sucks and people go elsewhere to get what they want or how they want it.

“It’s a bit like those who short stocks when they feel a company is going to have bad times – it should be a signal to do something different, not to point fingers and blame them for creating a problem,” he concludes.

DI.FM is available here for free but at just a few bucks a month, its premium offer is well worth the money. Android and iOS users can also get a month free trial.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and more. We also have VPN reviews, discounts, offers and coupons.

Mobilfunk: United Internet fühlt sich bei 5G-Lizenzen benachteiligt

Wird United Internet (1&1, Web.de) durch Politik und Konkurrenten am Erwerb einer 5G-Lizenz mit Tricks benachteiligt? Firmenchef Ralph Dommermuth sieht Anzeichen dafür – und eine Beteiligung von Verkehrsminister Andreas Scheuer. (United Internet, Telek…

Wird United Internet (1&1, Web.de) durch Politik und Konkurrenten am Erwerb einer 5G-Lizenz mit Tricks benachteiligt? Firmenchef Ralph Dommermuth sieht Anzeichen dafür - und eine Beteiligung von Verkehrsminister Andreas Scheuer. (United Internet, Telekom)

No, Pirate Sites Are Not the #1 Online Source For Malware

This week UK non-profit Internet Matters published a new guide designed to protect children from the apparent perils of using pirate sites. Like several before it, the report claims that pirate sites are the most common source of malware infection on the Internet and that streaming pirated media puts devices at risk. TF called in security experts – they do not agree.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and more. We also have VPN reviews, discounts, offers and coupons.

Protecting children in our society is one of the noblest things one can do. In both the physical and digital worlds, children need high-quality guidance.

While most of this support should come from parents and others closely involved with a child’s upbringing, groups like UK non-profit Internet Matters are there to provide advice when the adults around need help themselves.

This week the London-based group teamed up with the Mumsnet website to publish a guide titled “Internet safety and the dangers of digital piracy.” Perhaps unsurprisingly given recent trends, the report focuses on the apparent threats posed by “fully-loaded” set-top boxes running Kodi and similar applications.

“[I]f your children stream illegal content online, also known as digital piracy, it can expose them and you to cyber threats, disturbing pop-ups and unexpected harmful content,” the guide notes.

“The risks typically associated with digital piracy can take place on dodgy websites and preloaded streaming devices, sometimes known as Kodi boxes, but they can also occur through any number of illegitimate apps on mobiles, tablets or smart TVs.”

While some of the claims made in the guide are overly generic, it does make some very good points. Accessing content from illegal streaming sites rarely comes with the age restrictions available on services such as Netflix, for example, so parents should always be aware of the risks and act in a supervisory role.

“Explicit adverts may pop up and there’s no standard organization of age-restricted content, meaning 18+ films like Fifty Shades can sit right next to U-rated content such as Finding Nemo,” the guide notes.

The guide also correctly states that some fully-loaded devices can come with porn apps installed. Again, it’s the responsibility of the parent to ensure that their children aren’t left unsupervised to use such a device, particularly (given their child’s age) they were probably the one to buy it.

There are few complaints when it comes to the guide’s legal advice either. As part of the EU, streaming copyrighted content in the UK is illegal, as is marketing and selling pre-loaded devices configured for piracy. All ok so far, but then the guide mixes apples and oranges to spook the unknowledgeable reader.

“Whilst families haven’t yet been the target of police investigations, the consequences
of watching pirated content should be considered, both from a legal standpoint
and the inappropriate content children could be exposed to,” the guide notes.

“For example, a man was recently hit with an £85,000 demand for sharing his stream of a pay-to-view boxing match on Facebook with over 4,250 people.”

The kind of person who can get value from this kind of basic guide isn’t going to appreciate the differences between someone who streams to the public and someone who watches a stream at home. Simply reading “£85,000 demand” might be enough for them to throw their device in the trash (which may have been the intention), but perhaps we’re being a little bit picky here.

Statements like these, however, deserve no such leeway.



Like the majority of claims in the guide, this statement is offered without citing a source. So, we contacted Internet Matters to ask where this information had been obtained. Unfortunately (and despite having several days to do so) they didn’t respond.

The reason we asked is simple: we don’t believe either element of the claim is true. So, we approached some experts for their opinions. We asked two questions based on the precise wording of the Internet Matters claim.

1. Are pirate sites the most common source of malware infection? If not, what is the most common source/vector?

2. Does streaming pirated media put devices at direct risk of infection?

The first responses came back from respected security expert Mikko Hypponen from F-Secure.

“Pirate sites are not the most common source for infections, and it hasn’t been since the early 1990s. Today, the most common ways of getting infected are via malicious email attachments, browser plugins and extensions and web exploit kits,” he told TorrentFreak.

“Streaming pirated media is not a security risk, as long as the user does not install additional applications, browser plugins or codecs to stream.”

We also received a detailed response from Luis Corrons, Security Evangelist at Avast, who told us that the Internet overall is the most common source of malware, but websites are not the sole driver.

“If we look at some of the biggest malware outbreaks, like SQLSlammer, Blaster or the recent WannaCry attack, they all are network worms that have infected millions of computers without having to visit any webpage,” Corrons explained.

“The problem with pirate sites is that it’s hard to know who is behind them. If you visit YouTube or Vimeo, most people are familiar with their parent companies. But in the case of some obscure websites, there’s a chance they could have been built by cybercriminals looking to infect visitors, steal credentials and personal information.”

While it’s certainly possible that pirate sites can be a source of malware, Bogdan Botezatu, Senior E-Threat Analyst at Bitdefender, told us it is extremely difficult to assess the amount of malware on pirate sites, not least since many sites come and go on a regular basis.

However, he did indicate that when content from pirate sites is consumed via set-top devices, there’s less of a risk than when people access it via a web browser.

“Since these web services offer streaming through Kodi add-ons, the user never really get to interact with their home page, but rather with the Kodi dashboard. Most of these addons load content from [pirate] websites and stream it via Kodi. This dramatically minimizes the chances of the user interacting with rogue ads or deceptive links,” Botezatu explained.

So does Botezatu agree with Internet Matters when they claim that streaming pirated media itself “puts devices at direct risk of infection”?

“No, not directly, although I would not recommend anyone to resort to this,” Botezatu said.

“With extremely few exceptions where some vulnerabilities in the user’s video player could be exploited to run arbitrary code, media streaming is safe. I am unaware of any campaigns that use movie files for malware dissemination other than the Wimad Trojan back in 2012.”

The stance that streaming media is not inherently dangerous is shared by Corrons at AVAST.

“Streaming media does not pose any particular risk level of infection. It doesn’t matter if the media is pirated or not,” he said.

While it’s a bit of a shame that Internet Matters had to claim things that aren’t true to drive its point home, they’re by no means the only organization to do so.

Earlier this year, the Industry Trust for IP Awareness made a similar claim, noting that “Illegal streaming websites are now the number one propagation mechanism for malicious software as 97% of them contain malware.”

With assistance from Adam Kujawa, Director of Malware Intelligence at Malwarebytes, we debunked that statement back in February. It’s disappointing but not entirely surprising we’ve having to do so again several months later.

There are plenty of valid reasons for not letting kids loose with piracy-configured boxes, not least since they could see content that adults might prefer them not to. Notably, however, the exact same thing can be said about YouTube and Facebook, or even the Internet in general.

When anyone uses the Internet for anything there are security risks, so parents should always tell their kids to be cautious when they’re online, no matter what the device or content being consumed.

Surprisingly, the Internet Matters report – which has a strong focus on malware – doesn’t even mention installing anti-virus or anti-malware software to protect devices. Concerned parents should note that both can be obtained for free and are easy to install.

The Internet Matters guide (which despite the criticism does contain great advice on parental responsibility) is available here (pdf)

Source: TF, for the latest info on copyright, file-sharing, torrent sites and more. We also have VPN reviews, discounts, offers and coupons.

Asus NovaGo review pt 1: Windows 10 S on ARM really isn’t ready for prime time (yet)

Microsoft has been changing the way we think about Windows over the past few years. Windows 10 is a software-as-a-service release. Instead of asking users to pay to upgrade to a new version a few years after launching Windows 10, Microsoft has been rel…

Microsoft has been changing the way we think about Windows over the past few years. Windows 10 is a software-as-a-service release. Instead of asking users to pay to upgrade to a new version a few years after launching Windows 10, Microsoft has been releasing about two major updates per year… while still calling the operating […]

The post Asus NovaGo review pt 1: Windows 10 S on ARM really isn’t ready for prime time (yet) appeared first on Liliputing.

Review: Azul, board game of the year?

A modern “classic” is born.

Enlarge (credit: Nate Anderson)

Welcome to Ars Cardboard, our weekend look at tabletop games! Check out our complete board gaming coverage at cardboard.arstechnica.com.

At a local game night this week, my table was playing Splendor. If you don't know it, the game is a light "engine building" affair in which you gather gems, then use those gems to buy cards, which in turn help you by more expensive cards. You do this until you've racked up a certain number of points.

The game has few rules. Still, the new player at our table was bug-eyed as each of them was explained. When told that the symbols in one corner of the card were the cost to purchase, while the symbol in another corner was its effect, and the number in a third corner was its point value, a look of glazed bafflement descended upon him. When told that each player could choose between taking three gems of different colors or two gems of the same color—but only if four or more of that color gem were available–he looked like his mind had been blown apart. When told that each player could never have more than 10 chips in front of them at the end of a turn, he looked like he was going to leave the table.

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