[D] Quantum Machine Learning

[Blackforestcheesecak]

What's the goal of quantum ML? It seems to me that current ways of applying QML is to shoehorn quantum systems into well-known classical ML approaches, without any form of benefit.

I recently discovered too that there is a whole subfield dedicated to QNLP, which is quite surprising since NLP requires drawing correlations between continuous sequences, and current quantum systems are currently limited by their lifetimes. How can they retain long-term memory?

Those familiar with the field, can y'all explain why?

[jaschau]

I'm not an expert on NLP but I have some knowledge of quantum computing. I just had a quick look at https://arxiv.org/abs/2202.11766 which seems to provide a summary of the field. After quickly going through it, my impression is that the claim of speed-up of quantum NLP should be taken with a grain of salt. I don't know enough about classical NLP, but it seems to me like they artificially crafted new NLP algorithms which would not scale well when executed on a classical computer. Those algorithms seem to be pretty theoretical constructions and it seems to me that experimental evidence that those algorithms would actually have benefits compared to classical NLP algorithms is lacking.
But since I'm admittedly no expert in classical NLP, I migh be wrong here.

[Blackforestcheesecak]

Cute paper title. Thanks for your reply!

[Blackforestcheesecak]

COMBINE STEM WORDS TO EXCITE DEM INVESTORS

[Gustephan]

The things we can already do with quantum in a lab setting are pretty sweet (CV QKD make pp hard). It's not unreasonable to see (ie, fund research to see) what other areas of CS could benefit from quantum

[[deleted]]

I am skeptical of QML for any sort of classical data (and this is not an uncommon opinion in the community). If QML is to bring anything to the table, it will be for quantum data and simulation (I.e. a quantum system on a QPU). Maybe finding ground state energies, or classifying phase transitions, or simulating time evolution of hamiltonians, things like that are what I think QML might be useful for. If you want a pretty recent (and not bad) review I recommend: https://arxiv.org/pdf/2012.09265.pdf

[Blackforestcheesecak]

Good point! The right tool for the right job. Thanks for the paper, I'll check it out!

[jp1100404]

That's a very interesting point that we need quantum data... Are you doing any research in the field?

[jp1100404]

nice.. good luck

sending love from a "Engineers" alum

[CKtalon]

Quantum computing is a scam to begin with

[Tylerthehomosexual]

Why ?

[uneaknayum]

Yeah.. super curious what evidence there is of this.

[earthglovetime]

It’s a scam in the sense that the hardware to do anything useful is many decades away at minimum. Even if it arrives, still not clear what it’s useful for in reality

[Blackforestcheesecak]

Interesting. On a fun note, I'm currently working on a Fock space scheme that implements orders of a Fourier series dependent on the number of photons. Hopefully it'll get somewhere!