Prática de Shadowing: AI for Everyone by Andrew Ng - Aprenda a falar inglês com vídeo

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Welcome to AI for Everyone.
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AI is changing the way we work and live.
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This non-technical course will teach you how to navigate the rise of AI.
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Whether you want to know what's behind the buzzwords, or whether you want to perhaps use AI yourself,
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either in the personal context or in a corporation or other organization, this course will teach you how.
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And if you want to understand how AI is affecting society and how you can navigate that, you also learn that from this course.
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In this first week, we'll start by cutting through the hype and giving you a realistic view of what AI really is.
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Let's get started.
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You've probably seen news articles about how much value AI is creating.
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According to a study by McKinsey Global Institute,
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AI is estimated to create an additional 13 trillion US dollars of value annually by the year 2030.
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Even though AI is already creating tremendous amounts of value in the software industry,
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a lot of the value to be created in the future lies outside the software industry in sectors such as retail,
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travel, transportation, automotive, materials, manufacturing, and so on.
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I have a hard time thinking of an industry
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that I don't think AI will have a huge impact on in the next several years.
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My friends
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and I used to challenge each other to name an industry where we don't think AI will have a huge impact.
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And my best example was the hairdressing industry because you know how to use AI robotics to automate hairdressing.
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But I once said this on stage
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and one of my friends who is a robotics professor was in the audience
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that day that day and she actually stood up
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and she looked at me in the eye
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and she said you know Andrew most people's hairstyles I couldn't get a robot to cut their hair that way.
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But she looked at me and said, your hairstyle, Andrew, that a robot can do.
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There is a lot of excitement, but also a lot of unnecessary hype about AI.
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One of the reasons for this is because AI is actually two separate ideas.
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Almost all the progress we are seeing in AI today is artificial narrow intelligence.
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These are AIs that do one thing, such as a smart speaker or self-driving car
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or AI to do web search or AI applications in farming or in a factory.
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These types of AI are one-trick ponies, but when you find the appropriate trick, this can be incredibly valuable.
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Unfortunately, AI also refers to a second concept of AGI or artificial general intelligence.
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That is the goal to build AI that can do anything a human can do, or maybe even be super intelligent and do even more things than any human can.
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I'm seeing tons of progress in ANI, artificial narrow intelligence, and almost no progress toward AGI, or artificial general intelligence.
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Both of these are worthy goals, and unfortunately, the rapid progress in ANI, which is incredibly valuable.
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That has caused people to conclude that there's a lot of progress in AI, which is true, but that has caused people to falsely think
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that there might be a lot of progress in AGI as well,
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which is leading to some irrational fears about evil color robots coming over to take over humanity anytime now.
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I think AGI is an exciting goal for researchers to work on, but it'll take multiple technological breakthroughs before we get there.
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And it may be decades or hundreds of years or even even thousands of years away.
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Given how far away AGI is, I think there is no need to unduly worry about it.
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In this week, you will learn what ANI can do and how to apply them to your problems.
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Later in this course, you also see some case studies of how ANI,
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these one-trick ponies, can be used to build really valuable applications such as smart speakers and self-driving cars.
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In this week, you will learn what is AI.
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You may have heard of machine learning and the next video will teach you what is machine learning.
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You also learn what is data and what types of data are valuable, but also what types of data are not valuable.
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You learn what it is that makes a company an AI company or an AI first company,
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so that perhaps you can start thinking if there are ways to improve your company or other organization's ability to use AI.
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And importantly, you also learned this week what machine learning can and cannot do.
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In our society, newspapers as well as research papers tend to talk only about the success stories of machine learning and AI.
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And we hardly ever see any failure stories because they just aren't as interesting to report on.
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But for you to have a realistic view of what AI and what machine learning can and cannot do, I think it's important that you see examples of both
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so they can make more accurate judgments about what you may and maybe should not try to use these technologies for.
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Finally, a lot of the recent rise of machine learning has been driven through the rise of deep learning, sometimes also called neural networks.
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In the final two optional videos of this week,
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you can also see an intuitive explanation of deep learning so that you will better understand what they can do,
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particularly for a set of narrow ANI tasks.
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So that's what you learned this week.
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And by the end of this week, you have a sense of AI technologies and what they can and cannot do.
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In the second week, you learn how these AI technologies can be used to build valuable projects.
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You learn what it feels like to build an AI project
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as well as what you should do to make sure you select projects that are technically feasible
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as well as valuable to you or your business or other organization.
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After learning what it takes to build AI projects, in the third week, you learn how to build AI in your company.
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In particular, if you want to take a few steps toward making your company good at AI,
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you see the AI transformation playbook and learn how to build AI teams and also build complex AI products.
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Finally, AI is having a huge impact on society.
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In the fourth and final week, you learn about how AI systems can be biased and how to diminish or eliminate such biases.
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You also learn how AI is affecting developing economies and how AI is affecting jobs,
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and be better able to navigate this rise of AI for yourself and for your organization.
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By the end of this four-week course, you'll be more knowledgeable
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and better qualified than even the CEOs of most large companies in terms of your understanding of AI technology,
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as well as your ability to help yourself or help your company or other organization navigate the rise of AI.
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And so I hope that after this course, you'll be in a position to provide leadership to others as well as they navigate these issues.
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Now, one of the major technologies driving the recent rise of AI is machine learning.
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But what is machine learning?
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Let's take a look in the next video.

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Vídeo recomendado

Vocabulário e dicas de fala para esta lição

Este vídeo tem 78 frases e 1231 palavras para praticar shadowing. A fala dura 7:35. O falante fala em ritmo natural, cerca de 162 palavras por minuto, próximo de uma conversa do dia a dia. 85% das palavras estão entre as 3.000 mais comuns do inglês; vale a pena estudar o restante antes de começar.

Vocabulário principal deste vídeo

15 palavras menos comuns do vídeo, com pronúncia e significado:

  • navigate /ˈnæv.ɪ.ɡeɪt/ (verbo) — navegar. To plan, control and record the position and course of a vehicle, ship, aircraft, etc., on a journey; to follow a planned course.
  • artificial /ˌɑː.tɪˈfɪʃ.əl/ (adjetivo) — artificial. Man-made; made by humans; of artifice.
  • trick /ˈtɹɪk/ (substantivo) — artimanha, truque. Something designed to fool, dupe, outsmart, mislead or swindle.
  • narrow /ˈnæɹəʊ/ (adjetivo) — estreito, estreita. Having a small width; not wide; having opposite edges or sides that are close, especially by comparison to length or depth.
  • robot /ˈɹoʊ.bɑt/ (substantivo) — robot, robô. An intelligent mechanical being designed to look like a human or other creature, and usually made from metal.
  • incredibly /ɪŋˈkɹɛdɪbli/ (advérbio) — incrivelmente. In an incredible manner; not to be believed.
  • bias /ˈbaɪ.əs/ (substantivo) — predisposição, inclinação. Inclination towards something.
  • realistic /ˌɹɪəˈlɪs.tɪk/ (adjetivo) — realístico. Expressed or represented as being accurate, practicable, or not idealistic.
  • hype /haɪp/ (substantivo) — promoção, propaganda. Promotion or propaganda, especially exaggerated claims.
  • pony /ˈpoʊni/ (substantivo) — pônei, pónei. A small horse; specifically, any of several small breeds of horse under 14.2 hands at the withers.
  • robotics /ɹoʊˈbɑ.tɪks/ (substantivo) — robótica. The science and technology of robots, their design, manufacture, and application
  • refer /ɹɪˈfɜː/ (verbo) — encaminhar. To direct the attention of (someone toward something).
  • select /sɪˈlɛkt/ (verbo) — escolher, selecionar. To choose one or more elements of a set, especially a set of options.
  • explanation /ˌɛkspləˈneɪʃən/ (substantivo) — explicação, explanação. The act or process of explaining.
  • rapid /ˈɹæp.ɪd/ (adjetivo) — rápido. Very swift or quick.

Phrasal verbs que você vai ouvir

  • look at (verbo) — observar, ver. To observe or watch.
  • stand up (verbo) — levantar. To rise from a lying or sitting position.
  • take over (verbo) — tomar posse de, apoderar-se de. To assume control of something, such as a business or enterprise, and sometimes by force.

Pronúncia para ficar de olho

O falante usa 10 contrações e formas reduzidas, como don't, you'll, aren't. Diga-as na forma curta, do jeito que você ouve.

  • Os sons de “th”: worthy /ˈwɝ.ði/, breakthrough /ˈbɹeɪk.θɹuː/
  • Os sons de “sh” e “zh”: artificial /ˌɑː.tɪˈfɪʃ.əl/, explanation /ˌɛkspləˈneɪʃən/, transformation /ˌtɹæns.fɔɹˈmeɪ.ʃən/, optional /ˈɑp.ʃə.nəl/, irrational /ɪˈɹæʃ.(ə.)nəl/
  • Palavras longas — acerte a sílaba tônica: artificial /ˌɑː.tɪˈfɪʃ.əl/, incredibly /ɪŋˈkɹɛdɪbli/, explanation /ˌɛkspləˈneɪʃən/, humanity /hjuˈmænɪti/, intelligent /ɪnˈtɛlɪd͡ʒənt/

Como praticar com este vídeo

  1. Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
  2. Comece na velocidade 0,75×, faça shadowing frase por frase e volte à velocidade normal quando ficar fácil.
  3. Grave a sua voz e compare com o original, prestando atenção a palavras como navigate, artificial, trick.

Gramática neste vídeo

As estruturas que o falante mais usa, com as palavras exatas do vídeo:

EstruturaNo vídeo
Voz passiva be + particípio passado — o foco está no que acontece, não em quem fazis estimated · be created · has been driven
Present perfect have/has + particípio passado — uma ação passada que ainda importa agoraYou've probably seen · has caused · has been driven
Orações relativas who / which + oração — informação extra sobre uma pessoa ou coisafriends who is · ANI, which is

O que é a Técnica de Shadowing?

Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.

Técnica de shadowing: leia o guia completo passo a passo →