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Cuchulainn
Posts: 20252
Joined: July 16th, 2004, 7:38 am
Location: 20, 000

Re: Is the type of mathematics found in finance limited?

July 15th, 2018, 7:57 pm

Eh?  I have spoken my mind plenty of times.  Why can you not stay on the subject?
Put up or shut up guys, forget the snarky comments about AI, forget waffling about FD schemes, what interesting maths should we be using? What problem can you solve differently?
When do you need an answer? 
Snarky comments about AI? not at all.

What is the 'distribution' of your 600 posts? I need a refresher.
 
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Gamal
Posts: 1284
Joined: February 26th, 2004, 8:41 am

Re: Is the type of mathematics found in finance limited?

July 15th, 2018, 8:33 pm

Is that your business, Cuch?
 
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Cuchulainn
Posts: 20252
Joined: July 16th, 2004, 7:38 am
Location: 20, 000

Re: Is the type of mathematics found in finance limited?

July 15th, 2018, 8:44 pm

Is that your business, Cuch?
It's nice to know who I am speaking to, instead of a nameless avatar. Feels like a gatecrasher.
 
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Gamal
Posts: 1284
Joined: February 26th, 2004, 8:41 am

Re: Is the type of mathematics found in finance limited?

July 15th, 2018, 9:10 pm

In discussion forums we speak to nameless avatars, that's the standard. But there are places where you know who you are speaking to.
 
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katastrofa
Posts: 7440
Joined: August 16th, 2007, 5:36 am
Location: Alpha Centauri

Re: Is the type of mathematics found in finance limited?

July 15th, 2018, 10:08 pm

There's no such thing as "nameless" in the Internet.
 
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ISayMoo
Posts: 2332
Joined: September 30th, 2015, 8:30 pm

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 3:41 am

 Are you saying that Mathematical Biology doesn't exist? 
Of course it doesn't. There's only some mathematics loosely inspired by the vocabulary of biology. Biologists don't understand it, don't care and are completely right.
Have you read any biology papers recently? There is a lot of mathematics in biology. Statistics is widely used, for one. Population modelling uses mathematical models. Evolutionary biology uses maths.
 
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Paul
Topic Author
Posts: 6604
Joined: July 20th, 2001, 3:28 pm

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 1:18 pm

Gamal has been traumatised. Leave him alone. I once tried to read “The Handmaid’s Tale.” It was years before I could read another Atwood.
 
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Cuchulainn
Posts: 20252
Joined: July 16th, 2004, 7:38 am
Location: 20, 000

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 2:34 pm

What's the compelling business reason for using 'interesting' mathematics? Aft all, it doesn't grow on trees.
 
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Paul
Topic Author
Posts: 6604
Joined: July 20th, 2001, 3:28 pm

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 2:40 pm

You live in the Netherlands, you must be desperate for something interesting!

Finance is the perfect field for something interesting. I have spoken in lectures about economists having physics envy when it should be the other way around.
 
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Cuchulainn
Posts: 20252
Joined: July 16th, 2004, 7:38 am
Location: 20, 000

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 3:15 pm

You live in the Netherlands, you must be desperate for something interesting!

Finance is the perfect field for something interesting. I have spoken in lectures about economists having physics envy when it should be the other way around.
Physics is mostly hype (string theory almost ruined maths department).
There's nothing stopping people doing interesting maths, but  before they are 25. After that it's Fourier series and linear regression.
 
User avatar
Cuchulainn
Posts: 20252
Joined: July 16th, 2004, 7:38 am
Location: 20, 000

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 4:05 pm

 Are you saying that Mathematical Biology doesn't exist? 
Of course it doesn't. There's only some mathematics loosely inspired by the vocabulary of biology. Biologists don't understand it, don't care and are completely right.
Have you read any biology papers recently? There is a lot of mathematics in biology. Statistics is widely used, for one. Population modelling uses mathematical models. Evolutionary biology uses maths.
Metaheuristics?
 
 
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TinMan
Posts: 21
Joined: September 21st, 2006, 9:42 am

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 6:15 pm

Eh?  I have spoken my mind plenty of times.  Why can you not stay on the subject?
Put up or shut up guys, forget the snarky comments about AI, forget waffling about FD schemes, what interesting maths should we be using? What problem can you solve differently?
When do you need an answer? 
Snarky comments about AI? not at all.

What is the 'distribution' of your 600 posts? I need a refresher.
What an odd response.  If you want to know the distribution of my posts off you go and count them.
 
User avatar
katastrofa
Posts: 7440
Joined: August 16th, 2007, 5:36 am
Location: Alpha Centauri

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 6:45 pm

I gave you an example of a new field of mathematics on which finance could embark. Our comments about "AI"/ML are not just snarky, but contain valid and often constructive criticism: insufficient or incorrect theoretical foundations, from those commonly recognised ones (problems with SGD discussed by Cuchulainn, who's an expert in a related field - he doesn't need to prove himself so tone down a bit if you please) to major statistical errors such as confusing observational associations with causal inference from data.
 
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TinMan
Posts: 21
Joined: September 21st, 2006, 9:42 am

Re: Is the type of mathematics found in finance limited?

July 16th, 2018, 7:06 pm

I gave you an example of a new field of mathematics on which finance could embark. Our comments about "AI"/ML are not just snarky, but contain valid and often constructive criticism: insufficient or incorrect theoretical foundations, from those commonly recognised ones (problems with SGD discussed by Cuchulainn, who's an expert in a related field - he doesn't need to prove himself so tone down a bit if you please) to major statistical errors such as confusing observational associations with causal inference from data.
I'm not the one asking people to prove themselves, so it's not me you need to tell to tone it down.

Posting ML afficiandos claim they can solve 100-dimensional PDEs before breakfast is a snarky comment about AI, which nobody has suggested using in this thread.  In fact the only people mentioning AI are those who want to have a grumble about it.

What is this new field you're speaking of, are you referring to "I do simulations of microdynamics of systems of higher complexity than markets."
Why does it have to be a new field?  I just think it's weird that with all these mathematicians and physicists, and 10+ years since the start of the crisis and critiquing of financial models, nobody can say "I'd model X with Y, it's better than a parabolic PDE, or RN valuation or whatever".