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  • Every day, a large portion of the population

  • is at the mercy of a rising technology,

  • yet few actually understand what it is.

  • Artificial intelligence. You know, HAL 9000

  • and Marvin the Paranoid Android?

  • Thanks to books and movies,

  • each generation has formed

  • its own fantasy of a world ruled

  • -- or at leased served -- by robots.

  • We've been conditioned to expect flying cars

  • that steer clear of traffic

  • and robotic maids whipping up our weekday dinner.

  • But if the age of AI is here,

  • why don't our lives look more like the Jetson's?

  • Well, for starters, that's a cartoon.

  • And really, if you've ever browsed Netflix movie suggestions

  • or told Alexa to order a pizza,

  • you're probably interacting with artificial intelligence

  • more than you realize.

  • And that's kind of the point.

  • AI is designed so you don't realize

  • there's a computer calling the shots.

  • But that also makes understanding what AI is,

  • and what it's not, a little complicated.

  • In basic terms, AI is a broad area of computer science

  • that makes machines seem

  • like they have human intelligence.

  • So it's not only programming a computer to drive a car

  • by obeying traffic signals, but it's when that program

  • also learns to exhibit signs of human-like road rage.

  • As intimidating as it may seem,

  • this technology isn't new.

  • Actually, for the past half-a-century,

  • it's been an idea ahead of its time.

  • The term "artificial intelligence" was first coined back in

  • 1956 by Dartmouth professor John McCarthy.

  • He called together a group of computer scientists and mathematicians

  • to see if machines could learn like a young child does,

  • using trial and error to develop formal reasoning.

  • The project proposal says they'll figure out how to make machines

  • "use language, form abstractions and concepts,

  • solve kinds of problems now reserved for humans,

  • and improve themselves."

  • That was more than 60 years ago.

  • Since then, AI has remained for the most part

  • in university classrooms and super secret labs ...

  • But that's changing.

  • Like all exponential curves, it's hard to tell when a line

  • that's slowly ticking upwards is going to skyrocket.

  • But during the past few years, a couple of factors

  • have led to AI becoming the next "big" thing:

  • First, huge amounts of data are being

  • created every minute. In fact, 90% of the world's data

  • has been generated in the past two years.

  • And now thanks to advances in processing speeds,

  • computers can actually make sense

  • of all this information more quickly.

  • Because of this, tech giants and venture capitalists

  • have bought into AI and are infusing the market

  • with cash and new applications.

  • Very soon, AI will become a little less artificial,

  • and a lot more intelligent.

  • Now the question is: Should you brace yourself for yet

  • another Terminator movie, live on your city streets?

  • Not exactly. In fact, stop thinking of robots.

  • When it comes to AI, a robot is nothing more than

  • the shell concealing what's actually used

  • to power the technology.

  • That means AI can manifest itself in many

  • different ways. Let's break down the options.

  • First, you have your bots. They're text-based and

  • incredibly powerful, but they have limitations.

  • Ask a weather bot for the forecast, and it will tell you

  • it's partly cloudy with a high of 57.

  • But ask that same bot what time it is in Tokyo,

  • and it'll get a little confused.

  • That's because the bot's creator only programmed it to

  • give you the weather by pulling from a specific data source.

  • Natural language processing makes these bots

  • a bit more sophisticated.

  • When you ask Siri or Cortana

  • where the closest gas station is,

  • it's really just translating your voice into text,

  • feeding it to a search engine,

  • and reading the answer back in human syntax.

  • So in other words, you don't have to speak in code.

  • At the far end of the spectrum is machine learning,

  • and honestly, it's one of the most exciting areas of AI.

  • Like a human, a machine retains information

  • and becomes smarter over time.

  • But unlike a human, it's not susceptible to things like

  • short-term memory loss, information overload,

  • sleep deprivation, and distractions.

  • But how do these machines actually learn?

  • Well, while it may be easy for a human to know

  • the difference between a cat and a dog,

  • for a computer, not so much.

  • You see, when you're only considering

  • physical appearance, the difference between

  • cats and dogs can be a little gray.

  • You can say cats have pointed ears

  • and dogs have floppy ears,

  • but those rules aren't universal.

  • Between tail length, fur texture, and color,

  • there are a lot of options,

  • and that means a lot of tedious rules someone would

  • have to program manually to help a computer

  • spot the difference.

  • But remember -- machine learning is about making

  • machines learn like humans. And like any toddler,

  • that means they have to learn by experience.

  • With machine learning, programs analyze

  • thousands of examples to build an algorithm.

  • It then tweaks the algorithm

  • based on if it achieves its goal.

  • Over time, the program actually gets smarter.

  • That's how machines like IBM's Watson can

  • diagnose cancer, compose classical symphonies,

  • or crush Ken Jennings at Jeopardy.

  • Some programs even mimic the way

  • the human brain is structured,

  • complete with neural networks that help humans --

  • and now machines -- solve problems.

  • Generations have long imagined the ramifications of AI,

  • visualizing a society where machines seek revenge

  • and wreak havoc on human society.

  • However, the more logical and pressing question is:

  • How will AI affect your job?

  • Will it make your work obsolete?

  • Just like the Industrial Revolution,

  • it's not human versus machine.

  • It's human and machine versus problem.

  • The point is that artificial intelligence

  • helps you accomplish more in less time,

  • taking on the repetitive tasks of your job

  • while you master the strategy and relationships.

  • That way, humans can do what they do bestbe human.

Every day, a large portion of the population

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人工知能(または機械学習)とは? (What is Artificial Intelligence (or Machine Learning)?)

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    Alvin He に公開 2021 年 01 月 14 日
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