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Unveiling our new Quantum AI campus

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11–20 of 77 posts

Re: Unveiling our new Quantum AI campus

#11
The hardware side has been up there for a long time, and the theoretical side of the team has been in the Venice office. I guess they got a new building in Santa Barbara and wanted an announcement. I wonder if they are forcing the theorists to move up north?

Re: Unveiling our new Quantum AI campus

#13
I think QNN are very interesting from a compsci perspective, and interesting from a quantum tech perspective, but not so much from a real world perspective.

As I understand it loading classical data into a quantum computer - into quantum ram - is a big bottleneck. So running a QNN over a picture of a cat can't give a speedup vs. running it on a classical machine. Is this wrong HN?

I haven't found a result showing QNN's do offer strong speedups for training or testing - I have found papers saying it looks good - but I haven't found the result. I think this may be a literature search fail by me though.

For generalisation I have seen papers claiming that there will be better generalisation with QNN but I have failed to understand this result and do need to work harder!

I also believe that the most promising algorithm for quantum ML (HHL) has been "dequantized" I think that Grover's and QMC are pretty secure but also only quadratic in speed up (I say only - this is because that means there is a window of quantum advantage that may or may not be useful before the quantum algorithms fall off a cliff as well.

Ok - I need to understand this stuff for real, so please shoot me to bits !

Re: Unveiling our new Quantum AI campus

#14
post #2

Why is it called Quantum AI? What does that mean?

It means you brute force problems with linear algebra on a quantum computer, but quantum computers big enough to brute force things don't exist yet, so they've got a couple-hundred year plan to bootstrap themselves up there.

Re: Unveiling our new Quantum AI campus

#15
post #13

I think QNN are very interesting from a compsci perspective, and interesting from a quantum tech perspective, but not so much from a real world perspective. As I understand it loading classical data into a quantum computer - into quantum ram - is a big bottleneck. So running a QNN over a picture of a cat can't give a speedup vs. running it on a classical machine. Is this wrong HN? I haven't found a result showing QNN…

QC for optimization and other hard search problems is an interesting area for deeper exploration. It's possible that quantum optimizers could be exponentially faster than existing optimization techniques by evaluating multiple minima simultaneously.

Throwing AI on the research campus does help focus what researchers will do there - e.g. research algorithms which can plausibly improve training, inference, and generalization of neural networks/ML models. Rather than researching other more "practical" QC applications such as cryptography.

Re: Unveiling our new Quantum AI campus

#16
post #15
post #13

I think QNN are very interesting from a compsci perspective, and interesting from a quantum tech perspective, but not so much from a real world perspective. As I understand it loading classical data into a quantum computer - into quantum ram - is a big bottleneck. So running a QNN over a picture of a cat can't give a speedup vs. running it on a classical machine. Is this wrong HN? I haven't found a result showing QNN…

QC for optimization and other hard search problems is an interesting area for deeper exploration. It's possible that quantum optimizers could be exponentially faster than existing optimization techniques by evaluating multiple minima simultaneously. Throwing AI on the research campus does help focus what researchers will do there - e.g. research algorithms which can plausibly improve training, inference, and generali…

> It's possible that quantum optimizers could be exponentially faster than existing optimization techniques by evaluating multiple minima simultaneously.

Is there any known quantum algorithm that gives a speedup over classical algorithms? I don't mean "call Grover as a subroutine" during your standard classical optimization algorithm.

Re: Unveiling our new Quantum AI campus

#17
post #13

I think QNN are very interesting from a compsci perspective, and interesting from a quantum tech perspective, but not so much from a real world perspective. As I understand it loading classical data into a quantum computer - into quantum ram - is a big bottleneck. So running a QNN over a picture of a cat can't give a speedup vs. running it on a classical machine. Is this wrong HN? I haven't found a result showing QNN…

I think Preskill just had a paper out showing average case advantages for common QML tasks.

Re: Unveiling our new Quantum AI campus

#18
post #16
post #15

Earlier quoted context omitted.

QC for optimization and other hard search problems is an interesting area for deeper exploration. It's possible that quantum optimizers could be exponentially faster than existing optimization techniques by evaluating multiple minima simultaneously. Throwing AI on the research campus does help focus what researchers will do there - e.g. research algorithms which can plausibly improve training, inference, and generali…

> It's possible that quantum optimizers could be exponentially faster than existing optimization techniques by evaluating multiple minima simultaneously. Is there any known quantum algorithm that gives a speedup over classical algorithms? I don't mean "call Grover as a subroutine" during your standard classical optimization algorithm.

I don't understand this question? Grover's algorithm is itself faster than classical search algos.

It is as of yet unknown whether quantum computers are more powerful than classical computers; there is no proof that BQP is strictly bigger than P. There is oracle separation but that's not the same thing.

Re: Unveiling our new Quantum AI campus

#19

I was sceptical because 'AI' and 'quantum' seems to be used interchangeably and fits your regular snakeoil salestalk but google has done enormous amounts of research into non-classical computing. They've also done their AI projects to solve protein folding faster and more accurate than any contemporary solving models[1]. which is why the name sort of makes sense even though many on HN would appreciate nuance. "Nature…

>"Already we run quantum computers that can perform calculations beyond the reach of classical computers"

Yea this isn't true. Their 54 qubit machine can simulate random circuits pretty fast but

1) that's not at all useful and specifically contrived as a test of "quantum supremacy".

2) totally debatable whether it's actually out of reach:

>In the paper, it is argued that their device reached “quantum supremacy” and that “a state-of-the-art supercomputer would require approximately 10,000 years to perform the equivalent task.” We argue that an ideal simulation of the same task can be performed on a classical system in 2.5 days and with far greater fidelity

https://www.ibm.com/blogs/research/2019/10/on-quantum-suprem...

Re: Unveiling our new Quantum AI campus

#20

I was sceptical because 'AI' and 'quantum' seems to be used interchangeably and fits your regular snakeoil salestalk but google has done enormous amounts of research into non-classical computing. They've also done their AI projects to solve protein folding faster and more accurate than any contemporary solving models[1]. which is why the name sort of makes sense even though many on HN would appreciate nuance. "Nature…

> I was sceptical because 'AI' and 'quantum' seems to be used interchangeably and fits your regular snakeoil salestalk

That was my first take - and akin to saying "quantum intelligence" which just reeks of marketing on a synergy overdrive mission.

Of course they are just using quantum hardware/software approach towards AI type problems. So for me it may of been better to say Quantum Annealed AI. But then, as a campus name, it don't have that marketing ring going for it.

One question though that will arise down the line will be ethics, with a classical computer you can drill down and understand fully every bit of decision making if needs be. With a quantum computer, not so easy at all. Maybe possible that they create a good quantum AI system but equally at the same time it is also an evil AI system, only that they observe only the good as that is what they are looking for.

Philosophy is going to have a whole avenue of debate over this in years to come and who knows - AI psychology might be the future job we never expected to happen.

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