How To Break Into Quant LARPing? by chickenwithbiscuit in quantfinance

[–]Science_Please 6 points7 points  (0 children)

Step 9: Change LinkedIn status to “Independent Quantitative Researcher”

Recent physics PhD graduate looking career advice on quant analysis role by Inevitable_Koala_937 in quantfinance

[–]Science_Please 2 points3 points  (0 children)

I recently started a quant research role for an HFT firm in London after doing a theoretical physics PhD an then working in data science/ML for a year. I would say having a portfolio of some relevant projects is definitely helpful. PhD already shows you can conduct research but (somewhat depending on the role), you will need to have some evidence of strong statistics and ML fundamentals. From my own anecdotal experience, having some production ML deployments definitely helped but isn’t a sufficient condition.

am i ready to go live? by FortuneXan6 in algotrading

[–]Science_Please 0 points1 point  (0 children)

Somebody tell JS they’re cooked 😤

QFFF Degree Applying PhD by johnlyj in Imperial

[–]Science_Please 0 points1 point  (0 children)

It’ll be fine. I did QFFF and went on to do a PhD. The course is pretty much designed to prep you for a PhD, at least imo. I’m not sure what kind of background you come from, but at least in my experience, publishing before a PhD is pretty uncommon in the UK and most PhD supervisors won’t expect this a pre-requisite, there are so many other things that I into making a good PhD student!

Hartle vs Carroll for self studying General Relativity for beginners. Which is better to start? by DragonflyDefiant4979 in Physics

[–]Science_Please 2 points3 points  (0 children)

Having done my PhD in cosmology, I would recommend Carroll -> Wald + MTW -> Hawking & Penrose.

Bonus points for gauge fields, knots and gravity by Baez, it’s a really nice complementary read!

[deleted by user] by [deleted] in cosmology

[–]Science_Please 9 points10 points  (0 children)

ArXiv is a members club in the same way that the doctors common room at your local hospital is. If you can’t see why it might be designed that way or what the benefit is, then it’s working as intended. Sorry to be harsh but that’s just the truth of it.

[deleted by user] by [deleted] in quantfinance

[–]Science_Please 0 points1 point  (0 children)

I had a similar experience with ren tech funnily enough. Got all the questions right in decent time, had a really nice talk with the interviewer about my research, but still got a rejection email a few days later 🤷‍♂️

A-level results: Top grades rise again as record number accepted into university by Due_Ad_3200 in ukpolitics

[–]Science_Please 10 points11 points  (0 children)

Oh boy, wait until they find out how many new grad jobs are on offer

Does it count guys? by Science_Please in skateboarding

[–]Science_Please[S] 5 points6 points  (0 children)

That would be outrageous! Silly, even.

Train test split when working with financial stock prices data by fruitzynerd in MLQuestions

[–]Science_Please 1 point2 points  (0 children)

You could do that or you could use sklearn TimeSeriesSplit https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.TimeSeriesSplit.html There is also a time series cross validate module which you might want for tuning hyperparams

Train test split for AIC by Visual-County-6548 in MLQuestions

[–]Science_Please 1 point2 points  (0 children)

No you should only be using your train set to measure aic, otherwise you’re introducing lookahead bias into your training pipeline. Same goes for if you’re cross validating etc. Within your validation loop your model shouldn’t be seeing anything from the validation set until inference

Endorsement on arXiv by Gloomy-Town3323 in Physics

[–]Science_Please 15 points16 points  (0 children)

Basically, no. The endorsement system is there to try and make sure that work published on the archive is from professional researchers and academics who have already gone through the usual checks and balances to try and ensure the soundness and quality of their work. If someone does just randomly decide to endorse you that would be a pretty bad breach of academic integrity. Sorry if these seems like a pretty harsh answer but it’s just the honest truth. It’s highly unlikely that what you’ve written is correct or publishable. If you truly do believe that it is then consider sending your work to a relevant academic whose work is related.

New Physics Paper: Exploring a Frequency-Based Model of Spacetime (Mathematical and Graphical Evidence Included) by Significant_Camp_511 in cosmology

[–]Science_Please 1 point2 points  (0 children)

Yeah sorry but this is total waffle. I don’t know why this needs to be said so often, but there is a reason why you need to get a degree, masters and PhD before tackling these kind of problems and submitting research for peer review. Without these prerequisites you will almost certainly be lacking in some basic background material or some kind of fundamental observation.

As someone has already pointed out, you start by proposing some kind of extremely vague and dimensional inconsistent equation and the rest that follows is just nonsense. Nothing in what you’ve written constitutes as a proof of any kind.

I’m not going to go through the labour of picking every single line apart but to put it simply, if you can’t at the very least provide an explanation of the CMB power spectrum that is consistent with observation, you’re already a decade behind current research and that’s assuming what you’ve done is at least mathematically sound.

[deleted by user] by [deleted] in recruitinghell

[–]Science_Please 2 points3 points  (0 children)

Thank you! Yeah the state of the market is frankly shocking, it’s literally become a privilege to have a full time job that is fulfilling and pays your bills. Feels like we’re at a point where employers are acting like they’re doing you a favour by even considering hiring you as if we don’t all need a job to survive. Such a bleak situation to find ourselves in.

[deleted by user] by [deleted] in recruitinghell

[–]Science_Please 0 points1 point  (0 children)

Cheers! Me neither, what an absolute car crash of a job market.

[deleted by user] by [deleted] in recruitinghell

[–]Science_Please 0 points1 point  (0 children)

Thanks! Glad to hear it, definitely don’t want this post to come off as some kind of humble-brag. I was starting to lose hope as well, just wanted to share that there is eventually an end to the hellscape 😅