Tag: technology

Getting and Installing Linux – Part 3

6:01 am

UEFI and booting Linux on Win 8.1 & 10 machines

by James Stephens

Unified Extensible Firmware Interface (UEFI) is intended to be a modern alternative to BIOS. Ideally UEFI-(Secure Boot) blocks malware from being loaded when the computer is booted by using digital keys which software must possess in order to be booted onto the computer. UEFI supplants the traditional BIOS and it’s post screen, appreciably shortening boot times but sometimes adding a few more steps to set up a computer to boot into Linux. If necessary UEFI-(Secure Boot) may be disabled to allow access to the BIOS and the booting of non-UEFI complaint operating systems, such as 32 bit Linux or legacy Windows, and set up the computer to boot into Linux as I described in the previous post. But I recommend using UEFI if at all possible.
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Why I use Linux

2:27 pm

Linux can be a pain sometimes, and it requires a bit more hands-on work by the user to make it function, but overall in the ten years since I abandoned Windows and switched to Linux (first with the Debian operating system and now with Kubuntu) I have found my work on my computer to be far more satisfying and successful. I can mostly get things done the way I like to do them, not as dictated by some software geek working at Microsoft’s headquarters.

Which is why this story interested me: “I thought my daughter clicked on ransomware – it was the damn Windows 10 installer.” It describes a number of stories where Windows 10 took control of a person’s computer and imposed an upgrade, against their will.

This story, among many others, only confirmed for me that my decision in 2006 was a wise one. I will never return to Windows, and if I was certain that computer projectors could read Linux laptops I’d switch the laptop to Linux as well.

It is just a shame however that so many people still stick with Windows, as it often makes doing their work difficult, if not impossible. When a product doesn’t work for you, you find another product. That’s how freedom and competition work.

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South Korea commits almost a billion dollars to AI research

8:56 am

In reaction to the recent Go victory by a computer program over a human, the government of South Korea has quickly accelerated its plans to back research into the field of artificial intelligence with a commitment of $863 million and the establishment of public/private institute.

Scrambling to respond to the success of Google DeepMind’s world-beating Go program AlphaGo, South Korea announced on 17 March that it would invest $863 million (1 trillion won) in artificial-intelligence (AI) research over the next five years. It is not immediately clear whether the cash represents new funding, or had been previously allocated to AI efforts. But it does include the founding of a high-profile, public–private research centre with participation from several Korean conglomerates, including Samsung, LG Electronics and Hyundai Motor, as well as the technology firm Naver, based near Seoul.

The timing of the announcement indicates the impact in South Korea of AlphaGo, which two days earlier wrapped up a 4–1 victory over grandmaster Lee Sedol in an exhibition match in Seoul. The feat was hailed as a milestone for AI research. But it also shocked the Korean public, stoking widespread concern over the capabilities of AI, as well as a spate of newspaper headlines worrying that South Korea was falling behind in a crucial growth industry.

South Korean President Park Geun-hye has also announced the formation of a council that will provide recommendations to overhaul the nation’s research and development process to enhance productivity. In her 17 March speech, she emphasized that “artificial intelligence can be a blessing for human society” and called it “the fourth industrial revolution”. She added, “Above all, Korean society is ironically lucky, that thanks to the ‘AlphaGo shock’, we have learned the importance of AI before it is too late.”

Not surprisingly, some academics are complaining that the money is going to industry rather than the universities. For myself, I wonder if this crony capitalistic approach will produce any real development, or whether it will instead end up to be a pork-laden jobs program for South Korean politicians.

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What next for the computer Go program?

9:07 am

Link here.

The software uses neural networks to learn from experience. For example, to train for its Go match the computer program studied 30 million Go board positions from human games, then played itself again and again to improve its skills.

DeepMind’s founder and chief executive Demis Hassabis mentioned the possibility of training a version of AlphaGo using self-play alone, omitting the knowledge from human-expert games, at a conference last month. The firm created a program that learned to play less complex arcade games in this manner in 2015. Without a head start, AlphaGo would probably take much longer to learn, says Bengio — and might never beat the best human. But it’s an important step, he says, because humans learn with such little guidance.

DeepMind, based in London, also plans to venture beyond games. In February the company founded DeepMind Health and launched a collaboration with the UK National Health Service: its algorithms could eventually be applied to clinical data to improve diagnoses or treatment plans. Such applications pose different challenges from games, says Oren Etzioni, chief executive of the non-profit Allen Institute for Artificial Intelligence in Seattle, Washington. “The universal thing about games is that you can collect an arbitrary amount of data,” he says — and that the program is constantly getting feedback on what’s a good or bad move by playing many games. But, in the messy real world, data — on rare diseases, say — might be scarcer, and even with common diseases, labelling the consequences of a decision as ‘good’ or ‘bad’ may not be straightforward.

Hassabis has said that DeepMind’s algorithms could give smartphone personal assistants a deeper understanding of users’ requests. And AI researchers see parallels between human dialogue and games: “Each person is making a play, and we have a sequence of turns, and each of us has an objective,” says Bengio. But they also caution that language and human interaction involve a lot more uncertainty.

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It’s a sweep!

8:44 am

Google’s AlphaGo computer program today completed a three game sweep of Go professional champion Lee Sedol.

This might be the best quote from the article:

The algorithm seems to be holding back its power. Sometimes it plays moves that lose material because it is seeking simply to maximise its probability of reaching winning positions, rather than — as human players tend to do — maximise territorial gains. Jackson thinks that some of these odd-looking moves may have fooled Lee into underestimating the machine’s skills at the beginning of game 1 — which, I suppose, makes AlphaGo a kind of computerized hustler.

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A new lightweight and very strong metal

9:03 am

Engineers have developed a new superlight and very strong metal.

A team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has created a super-strong yet light structural metal with extremely high specific strength and modulus, or stiffness-to-weight ratio. The new metal is composed of magnesium infused with a dense and even dispersal of ceramic silicon carbide nanoparticles. It could be used to make lighter airplanes, spacecraft, and cars, helping to improve fuel efficiency, as well as in mobile electronics and biomedical devices.

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The modern glassmaker

6:01 pm

An evening pause: Though the last two minutes are a commercial and can be ignored, the rest of this video shows the modern way glass is produced for our technological society. Most fascinating, especially because the way it is done surprised me.

Hat tip Rocco.

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Boeing’s 747 is finally heading for retirement

10:19 pm

After 45 years of service, Boeing’s 747, the world’s first jumbo jet, is finally facing retirement as airlines consider more modern planes for their fleets.

The plane that so audaciously changed the shape of the world is now on the wrong side of history. Airlines are retiring older 747s – JAL no longer flies them – and Boeing’s attempt at catch-up, the latest 747-8 model, has had technical problems and is selling only very slowly. The air above my garden will not be troubled by 747s for very much longer.

The article gives brief but detailed outline of the 747’s history, and why passengers and pilots still love it. I love it because of this:

The 747 was America at its proud and uncontaminated best. ‘There’s no substitute for cubic inches,’ American race drivers used to say and the 747 expresses that truth in the air. There is still residual rivalry with the upstart European Airbus. Some Americans, referring to untested new technologies, call it Scarebus. There’s an old saying: ‘If it ain’t Boeing, I ain’t going.’

A comparison to the European Concorde is illuminating. The supersonic Anglo-French plane was an elite project created for elite passengers to travel in near space with the curvature of the Earth on one hand and a glass of first growth claret on the other. The 747 was mass-market, proletarianising the jet set. It was Coke, not grand cru and it was designed by a man named Joe. Thus, the 747’s active life was about twice that of Concorde.

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Hackers demonstrate they can remotely take over moving vehicle

9:33 am

Does this make you feel safer? In a demonstration of the vulnerability of modern cars that are linked to the internet, two hackers took over the operation of an unmodified moving Jeep Cherokee.

A pair of Missouri-based hackers have put on an extraordinary demonstration by logging into a Jeep Cherokee remotely, while it was being driven by a Wired reporter Andy Greenberg, and systematically taking over the car’s functionality. First, they hit him with cold air through the air-con system, then they blasted Kanye West through the stereo at full volume, rendering the volume knob completely useless. They flashed up a picture of themselves on the car’s console and set the windscreen wipers going full blast, squirting cleaning fluid onto the windscreen and making it difficult to see.

But these were just warmups to the main event – next, they took over the engine and shut it off completely, leaving the driver powerless and coasting on the freeway as traffic flashed past around him. Then, once he was off the highway, they showed how they could completely disable the brakes, and take over the steering of the car – only at slow speeds and in reverse, but they’re working on unlocking new abilities every day.

This suggests to me that linking any car directly to the internet is probably a very bad idea.

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