ElMaestro
★★★

Denmark,
2017-10-27 16:58
(2363 d 03:15 ago)

Posting: # 17933
Views: 6,405
 

 Earth-mover's distance [Nonparametrics]

Hi all,

re. FDA Ciclosporine draft guidance:

Does anyone know where I should start to get to grips with Earth-mover's distance for real and in practice?
Wikipedia, the reference indicated in the guidance and some random googling hasn't given me a solid basis for understanding anything, much less for doing anything of value with it.

Note that the footnote opens up the possibility of using some other statistical similarity measures, and I hope to go that way, but let us for the purpose of this thread discuss EMD only :-D:confused::pirate:

Pass or fail!
ElMaestro
Helmut
★★★
avatar
Homepage
Vienna, Austria,
2017-10-27 17:17
(2363 d 02:56 ago)

@ ElMaestro
Posting: # 17934
Views: 5,287
 

 Earth-mover's distance

Hi ElMaestro,

❝ […] Earth-mover's distance …


OT: Wow, what a term! Reminds me on

Δῶς μοι πᾶ στῶ καὶ τὰν γᾶν κινάσω.
Give me the place to stand, and I shall move the earth.
    Archimedes of Syracuse


Bonus question: Who the heck is Stolfi?

Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
ElMaestro
★★★

Denmark,
2017-10-27 17:24
(2363 d 02:50 ago)

@ Helmut
Posting: # 17935
Views: 5,176
 

 Earth-mover's distance

Hi Hötzi,

❝ Bonus question: Who the heck is Stolfi?


What????
I don't think I know anyone with that name or with that handle. Sounds like a German side dish.
"Einmal Currywurst mit Stolfi und dazu ein Fassbier, bitte!"

Pass or fail!
ElMaestro
Helmut
★★★
avatar
Homepage
Vienna, Austria,
2017-10-27 17:32
(2363 d 02:41 ago)

@ ElMaestro
Posting: # 17936
Views: 5,272
 

 Earth-mover's distance

Hi ElMaestro,

❝ ❝ Bonus question: Who the heck is Stolfi?

❝ I don't think I know anyone with that name or with that handle.


Acc. to the original publication the lad* who coined the term (personal communication 1994).

❝ Sounds like a German side dish.

❝ "Einmal Currywurst mit Stolfi und dazu ein Fassbier, bitte!"


Reminds me on the German release of Disney’s Lady and the Tramp (“Susi und Strolch”).


Edit: Jorge Stolfi.

Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
nobody
nothing

2017-10-28 19:31
(2362 d 00:42 ago)

@ Helmut
Posting: # 17937
Views: 5,199
 

 Earth-mover's distance

"Informally, if the distributions are interpreted as two different ways of piling up a certain amount of dirt over the region D, the EMD is the minimum cost of turning one pile into the other; where the cost is assumed to be amount of dirt moved times the distance by which it is moved."

https://en.wikipedia.org/wiki/Earth_mover%27s_distance

Seriously?

Mayby some quantum effects might come into play... I'm out (never in).

Kindest regards, nobody
UA Flag
Activity
 Admin contact
22,984 posts in 4,822 threads, 1,651 registered users;
48 visitors (0 registered, 48 guests [including 7 identified bots]).
Forum time: 20:14 CEST (Europe/Vienna)

You can’t fix by analysis
what you bungled by design.    Richard J. Light, Judith D. Singer, John B. Willett

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5