Live data from Hacker News

Ping-pong robot beats top-level human players

reuters.com

131–140 of 280 posts

Re: Ping-pong robot beats top-level human players

#133

Don't table tennis players learn to predict how the ball will act based on their opponents movements? Seems like if they aren't able to do that with a robot opponent (who doesn't look or behave like a human) then they wouldn't be able to play at their best.

Exactly. There are cues that an opponent provides when approaching a ball that help the player prepare for and limit the range of possible responses (this happens with most racket games). With these robots, the players only find out after the ball is already coming in their direction.

I wonder how much practice these players had against the machine in the weeks leading up to the actual game. That would be significant to ensure they are playing at their pro level.

Re: Ping-pong robot beats top-level human players

#134

My biggest fear at the moment is robot armies and police forces. Case in point : we're all expecting China needs to invade Taiwan soon, or they will run out of soldiers because of the one child policies of the 70s/80s. Meanwhile, Ukraine is holding up against a "modern" army with quickly assembled drones. So it all seems a bit like "they'll never put tanks through the Ardennes", sort of ? Where and when will the firs…

Ah geez, again this China invading Taiwan nonsense, China ain't USA, Israel or Russia attacking sovereign countries, they just use money to take over, they will do exactly same with Taiwan. Eventually Taiwanese people will figure out that siding with agressive country run by crazy old men is worse option than siding with China.

China has all time in the world not being run by crazies with 5 year election terms rushing to keep their mark in the history, not necessarily positive...

Re: Ping-pong robot beats top-level human players

#135

Don't table tennis players learn to predict how the ball will act based on their opponents movements? Seems like if they aren't able to do that with a robot opponent (who doesn't look or behave like a human) then they wouldn't be able to play at their best.

You can predict the movement of the ball (speed, direction, spin) based on the movement of the bat relative to the ball. What the rest of the player's body is doing is irrelevant to predicting what the ball will do - but relevant to predicting where they will be when you make the return shot.

The movement of the "bat" is tied to the physical limitations of the arm and the positioning of the body. Something that can't be deduced or even perceived clearly from the movements of this robot.

As I mentioned in a previous comment, it would be important to know how many weeks of preparation and training against this sort of robot the player had before the match.

Re: Ping-pong robot beats top-level human players

#136
post #2

A year ago this [0] table tennis robot backed by Google DeepMind was discussed on HN. It plays much worse and the HN discussion is anchored around whether it's OK to call it "human-level" or if the authors should have clarified that they meant a human who doesn't actually play table tennis. But it was accepted as being SOTA at that time. What happened since then? This looks like the kind of level of advance we see in…

As a human player (of a not-high standard) I cannot see the spin of the ball directly. I can only infer it from the movement of my opponents bat. So I would wonder that a camera could pick it up in real time. Also IT'S TABLE TENNIS, NOT PING PONG!

乒乓. I don't know how it could be more clear that it's not "table tennis".

Re: Ping-pong robot beats top-level human players

#137
post #32

My biggest fear at the moment is robot armies and police forces. Case in point : we're all expecting China needs to invade Taiwan soon, or they will run out of soldiers because of the one child policies of the 70s/80s. Meanwhile, Ukraine is holding up against a "modern" army with quickly assembled drones. So it all seems a bit like "they'll never put tanks through the Ardennes", sort of ? Where and when will the firs…

Marching humanoid terminator robots will never be as cheap as a drone. Autonomous suicide drone swarms are what should terrify you.

Not marching, but Ukraine uses continuous track machine gun robots seemingly very effectively. They aren’t suicide ones.

https://archive.is/dpNsN

Re: Ping-pong robot beats top-level human players

#138
I find Sony's work valuable. In my opinion, the primary purpose of AI is still, first and foremost, to relieve us of the physical labor we don't want to do. The next step to be taken is to create a universal basic income. Evolution will then unfold, as creative people will be able to dedicate their whole life undisturbed to the problems they deem important.

Here a video where one can actually see the robot in action:

https://youtu.be/lWp6XNHaWRk

Re: Ping-pong robot beats top-level human players

#139

Earlier quoted context omitted.

To be honest, if Chinese folks are fine with calling it "ping pong" (乒乓), I'm fine, too. (Also, you sorta can infer the spin from the ball arc or even if you catch a glimpse of the rotating label)

In french, we call that ping pong too. So yeah for ping pong.

That is simply not true. We call it "tennis de table" when it comes to the sport, and we call it "ping pong" when you play at a camping in flip flops.

Re: Ping-pong robot beats top-level human players

#140
post #97
post #86

Earlier quoted context omitted.

They can also sit in one spot guarding a position without using much battery. Ukraine recently took territory from Russian forces using ground bots, the first time it's been done without using soldiers on the ground. Now they're starting to scale the bots up to mass production.

the issue is remote control. Ground position means a lot of obstacles in addition to the widespread jamming. One can try to control the bot from the fiber-optic controlled drone hanging over, yet such complication has its own drawbacks. That means that ground bots are in real need of making them autonomous.

[dead]
Post reply on HN