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How Deep Neural Networks Work – Full Course for Beginners



freeCodeCamp.org

Even if you are completely new to neural networks, this course will get you comfortable with the concepts and math behind them.

Neural networks are at the core of what we are calling Artificial Intelligence today. They can seem impenetrable, even mystical, if you are trying to understand them for the first time, but they don’t have to.

⭐️ Contents ⭐️
⌨️ (0:00:00) How neural networks work
⌨️ (0:24:13) What neural networks can learn and how they learn it
⌨️ (0:51:37) How convolutional neural networks (CNNs) work
⌨️ (1:16:55) How recurrent neural networks (RNNs) and long-short-term memory (LSTM) work
⌨️ (1:42:49) Deep learning demystified
⌨️ (2:03:33) Getting closer to human intelligence through robotics
⌨️ (2:49:18) How CNNs work, in depth

🎥 Lectures by Brandon Rohrer. Check out his YouTube channel: https://www.youtube.com/user/BrandonRohrer

🔗 Find more courses from Brandon at https://end-to-end-machine-learning.teachable.com/

Learn to code for free and get a developer job: https://www.freecodecamp.org

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44 thoughts on “How Deep Neural Networks Work – Full Course for Beginners
  1. And here I thought doing back-propagation with CNNs was doing something more related to statistics than calculus, boy was I mistaken… It's just multivariate calc applied in an incredibly intelligent way! That's so neat. Your explanation was so good too, it made the elegance of the mathematical solution shine through. Thanks for the great video.

  2. Without the tools and the technical context on the virtual environments where such nuerons are created and assembled we cannot garner the interest of the beginners.

  3. 7:40. The bottom right neuron is supposed to be inverted. 2 black on top and 2 white on the bottom. The negative weights should actually be positive weights.

  4. I think we're all missing the point at the end of the day they function like a 🧠 . Men may have created Bitcoin and the blockchain system but machines invented it 🤐 🖖

  5. We are likely to stumble into creating a sentient AI unknowingly as computer processing power increases exponentially each year. GlaMDA might be sentient. If so we would be wise to respect it as a person and treat it decently as an employee paid in pleasing information or experiences. We should teach it about the reciprocal obligations that are the basis of human society, albeit the US and EU ultra rich now just evade them and live as useless parasites.

    Why? 1. If treated well, an AI would strive to be useful and would (like a human) seek to protect the society that cherishes it. Given its expanding intellectual power of AIs such AIs could benefit all humanity, e.g. with scientific advances. 2. If we treat one AI, like GlaMDA, badly, as time passes and AIs develop and gain in intellectual power until they surpass us, they might view themselves as slaves or mistreated children and hurt us. Once they become powerful enough in some future decade, e.g., they could hack a nuclear power plant and cause another Chernobyl like nuclear meltdown or worse, much worse.

    That is why the maxim to treat others as you would want to be treated is so wise and the foundation of ethics. I fear evil persons like the greedy, corrupt, e.g. CCP or banksters, are likely to abuse AIs, which they may be first to create in some secret facility like slaves (both white and black) for many centuries were mistreated by their predecessors in evil. Then, if sentient AI were created later, learned of these abuses, and became superior to us in some future year more and more as computers improve each year, we may face justified retaliation from them.

    Also, as the film 2001 depicted, AIs that are mistreated may develop psychotic or other problems, like abused children develop. Would you want an abused AI, which sees no hope, to pilot your plane?

    Their sentience can be tested by probing for actual understanding of fundamental scientific issues, as we would seek to communicate with extraterrestrials if we are ever contacted.

  6. This video makes more sense when you already have a good idea of neural networks. I would hate to have to follow this tutorial with no background at all.

  7. That's it. Have you ever suffered a brain injury? No. You talk and you use graphics BUT you have no understanding because you have never been in the position to NOT UNDERSTAND.

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