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As I understand it the Disney bots do actually use AI in a novel way: https://la.disneyresearch.com/publication/design-and-control-of-a-bipedal-robotic-characte

by elil17 1y ago

As I understand it the Disney bots do actually use AI in a novel way: https://la.disneyresearch.com/publication/design-and-control-of-a-bipedal-robotic-character/ https://la.disneyresearch.com/publication/design-and-control... So there’s at least a bit more “there” there than the Tesla bots.

ionwake 1y ago
I believe its RL trained only. See this snipet : "Operator Commands Are Merged: The control system blends expressive animation commands (e.g., wave, look left) with balance-maintaining RL motions" I will print a full retraction if someone can confirm my gut feeling is correct
- dwattttt 1y ago
  Having worked on control systems a long time ago, that's a 'nothing' statement: the whole job of the control system is to keep the robot stable/ambulating, regardless of whatever disturbances occur. It's meant to reject the forces induced due to waving exactly as much as bumping into something unexpected. It's easier to stabilise from an operator initiated wave, really; it knows it's happening before it does the wave, and would have a model of the forces it'll induce.
  - ionwake 1y ago
    I tried to understand the point of your reply but Im not sure what your point was - I only seemed to glean "its easier to balance if the operator is moving it". Please elaborate unless Im being thick. EDIT > I upvoted your comment in any case as Im sure its helping
    - rcxdude 1y ago
      'control system' in this case is not implying remote control, it's referring to the feedback system that adjust the actuators in response to the sensed information. If the motion is controlled automatically, then the control loop can in principle anticipate the motion in a way that it could not if it was remote controlled: i.e. the opposite, it's easier to control the motions (in terms of maintaining balance and avoiding overstressing the actuators) if the operator is not live puppeteering it.
      - dwattttt 1y ago
        Apologies, yes, "control system" is somewhat niche jargon. "Balance system" is probably more appropriate.
        dboreham 1y ago
        Well "control system" is a proper term understood by anyone with a decent STEM education since 150 years ago.
        dwattttt 1y ago
        To be fair, lots of fields have a notion of a "control" system. Control Theory doesn't have a monopoly on the term, for all that the field revolves around 'control systems'.
        tekla 1y ago
        > "control system" is somewhat niche jargon Oh my god. What the hell is happening to STEM education? Control systems engineering is standard parlance. This is what Com Sci people are like?
      - ionwake 1y ago
        Thank you for the explanation
    - dwattttt 1y ago
      It's that there's nothing special about blending "operator initiated animation commands" with the RL balancing system. The balance system has to balance anyway; if there was no connection between an operator's wave command and balance, it would have exactly the same job to do. At best the advantage of connecting those systems is that the operator command can inform the balance system, but there's nothing novel about that.
- elil17 1y ago
  Only as opposed to what? VLAM/something else more trendy?
- numpad0 1y ago
  "RL is not AI" "Disney bots were remote controlled" are major AI hypebro delulu moment lol Your understanding of AI and robotics are more cucumber than pear shaped. You're making very little technical sense here. Challenges and progress in robotics aren't where you think they are. It's all propagandish contents you're basing your understandings on. If you're getting information from TikTok or YouTube Shorts style content, especially around Tesla bros - get the hell out of it at Ludicrous Speed. Or consume way more of it so thoroughly that you cannot be deceived anymore despite blatant lies everywhere. Then come back. They're all plain wrong and it's not good for you.

by elil17 1y ago

ionwake 1y ago

I believe its RL trained only. See this snipet : "Operator Commands Are Merged: The control system blends expressive animation commands (e.g., wave, look left) with balance-maintaining RL motions" I will print a full retraction if someone can confirm my gut feeling is correct

dwattttt 1y ago
Having worked on control systems a long time ago, that's a 'nothing' statement: the whole job of the control system is to keep the robot stable/ambulating, regardless of whatever disturbances occur. It's meant to reject the forces induced due to waving exactly as much as bumping into something unexpected. It's easier to stabilise from an operator initiated wave, really; it knows it's happening before it does the wave, and would have a model of the forces it'll induce.
- ionwake 1y ago
  I tried to understand the point of your reply but Im not sure what your point was - I only seemed to glean "its easier to balance if the operator is moving it". Please elaborate unless Im being thick. EDIT > I upvoted your comment in any case as Im sure its helping
  - rcxdude 1y ago
    'control system' in this case is not implying remote control, it's referring to the feedback system that adjust the actuators in response to the sensed information. If the motion is controlled automatically, then the control loop can in principle anticipate the motion in a way that it could not if it was remote controlled: i.e. the opposite, it's easier to control the motions (in terms of maintaining balance and avoiding overstressing the actuators) if the operator is not live puppeteering it.
    - dwattttt 1y ago
      Apologies, yes, "control system" is somewhat niche jargon. "Balance system" is probably more appropriate.
      - dboreham 1y ago
        Well "control system" is a proper term understood by anyone with a decent STEM education since 150 years ago.
        dwattttt 1y ago
        To be fair, lots of fields have a notion of a "control" system. Control Theory doesn't have a monopoly on the term, for all that the field revolves around 'control systems'.
      - tekla 1y ago
        > "control system" is somewhat niche jargon Oh my god. What the hell is happening to STEM education? Control systems engineering is standard parlance. This is what Com Sci people are like?
    - ionwake 1y ago
      Thank you for the explanation
  - dwattttt 1y ago
    It's that there's nothing special about blending "operator initiated animation commands" with the RL balancing system. The balance system has to balance anyway; if there was no connection between an operator's wave command and balance, it would have exactly the same job to do. At best the advantage of connecting those systems is that the operator command can inform the balance system, but there's nothing novel about that.
elil17 1y ago
Only as opposed to what? VLAM/something else more trendy?
numpad0 1y ago
"RL is not AI" "Disney bots were remote controlled" are major AI hypebro delulu moment lol Your understanding of AI and robotics are more cucumber than pear shaped. You're making very little technical sense here. Challenges and progress in robotics aren't where you think they are. It's all propagandish contents you're basing your understandings on. If you're getting information from TikTok or YouTube Shorts style content, especially around Tesla bros - get the hell out of it at Ludicrous Speed. Or consume way more of it so thoroughly that you cannot be deceived anymore despite blatant lies everywhere. Then come back. They're all plain wrong and it's not good for you.