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ecm...is it additive?

Author
Coreemo
Kenshin Industries.
Kenshin Shogunate.
#1 - 2013-05-02 03:49:14 UTC
If multiple ships are multispectrum jamming one target, will that target eventually be perma-jammed, given enough ships?
1st-Garrentious WispBender
Doomheim
#2 - 2013-05-02 03:51:35 UTC
Coreemo wrote:
If multiple ships are multispectrum jamming one target, will that target eventually be perma-jammed, given enough ships?


It is a game of chance. Similar to when I take a gallentean fleet of 40 against 1-2 wartargets. You see my friend, the Caldari are a very formative enemy and I risk losing the entire fleet.

As ECM is a similar chance based mechanic, there is always the chance of survival.
chatgris
Quantum Cats Syndicate
Of Essence
#3 - 2013-05-02 04:22:20 UTC  |  Edited by: chatgris
1st-Garrentious WispBender wrote:
Coreemo wrote:
If multiple ships are multispectrum jamming one target, will that target eventually be perma-jammed, given enough ships?


It is a game of chance. Similar to when I take a gallentean fleet of 40 against 1-2 wartargets. You see my friend, the Caldari are a very formative enemy and I risk losing the entire fleet.

As ECM is a similar chance based mechanic, there is always the chance of survival.


Awesome character, awesome name! Hairdo is pretty good too.

Wondering about the etymology of the name..

X Gallentius in the name and hair
Deen Wispa in the name (and possibly the sunnies? been a while since I saw the portrait)

Where does the 1-st and Bender come from?
IbanezLaney
The Church of Awesome
#4 - 2013-05-02 04:36:38 UTC  |  Edited by: IbanezLaney
chatgris wrote:
1st-Garrentious WispBender wrote:
Coreemo wrote:
If multiple ships are multispectrum jamming one target, will that target eventually be perma-jammed, given enough ships?


It is a game of chance. Similar to when I take a gallentean fleet of 40 against 1-2 wartargets. You see my friend, the Caldari are a very formative enemy and I risk losing the entire fleet.

As ECM is a similar chance based mechanic, there is always the chance of survival.


Awesome character, awesome name! Hairdo is pretty good too.

Wondering about the etymology of the name..

X Gallentius in the name and hair
Deen Wispa in the name (and possibly the sunnies? been a while since I saw the portrait)

Where does the 1-st and Bender come from?



I was guessing the Bender bit was Garr Earthbender (I think thats his name - soz if wrong)


1st bit - not 100% sure but I have an idea.

EDIT:
Maybe 1st Blood or 1st commander or something? Ones an alt and ones a booster the Gals use.

That's my guess.

EDIT2:
Can't believe I didn't think of this before -
As a female Gallente toon Chatgris - you would know that female Gallente are very easy.(aka loose)

Soooooo - The name might be legit and the poor Gallente mother who had this one just had to add all her clients names from a night 9 months ago together.

So I think that toon is legit, but conceived in a brothel in Eha.
Jack Miton
School of Applied Knowledge
Caldari State
#5 - 2013-05-02 04:40:23 UTC
the chances are independent.
basically in a hypothetical where 1 mod has 50% chance to jam, 2 would have 75%, 3 87.5% ect.
due to the way probability works, it never hits 100% chance. Only way to actually perma 100% jam someone is if you have a 100% chance on a single mod (ie: your jam strength is higher than their sensor strength).

There is no Bob.

Stuck In Here With Me:  http://sihwm.blogspot.com.au/

Down the Pipe:  http://feeds.feedburner.com/CloakyScout

StoneCold
Decadence.
RAZOR Alliance
#6 - 2013-05-02 07:02:51 UTC  |  Edited by: StoneCold
Jack Miton wrote:

[...]
basically in a hypothetical where 1 mod has 50% chance to jam, 2 would have 75%, 3 87.5% ect.
[...]


I have to disagree. If 1 mod got a chance of 50% then 2 mods stilll got the chance of 50% - but 2 times (Laplace).

Sidenote:
Hypothetical you could view your 50% jam chance from your post in boolean 'Yes i jam' and 'no jam,sry guys'.
If you´re now moving your ship in a perfect (and closed) system where all results are equaly distributed you´ll allready
hit a 100% jam-chance with 2 mods (with 50% chance to jam).

Though i might be VERY wrong and just bored at work.

EDIT:

No, it´s not additive. If you have a poor little bugger attacking your scorpion / falcon / rook fleet and you activate 1000 ecms on him (each 50% jam-chance) you still have a chance of 50% to jam him for each module. It´s not 99.9999999999%.
chatgris
Quantum Cats Syndicate
Of Essence
#7 - 2013-05-02 07:13:38 UTC
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.
Jack Miton
School of Applied Knowledge
Caldari State
#8 - 2013-05-02 07:44:39 UTC
StoneCold wrote:
Jack Miton wrote:

[...]
basically in a hypothetical where 1 mod has 50% chance to jam, 2 would have 75%, 3 87.5% ect.
[...]


I have to disagree. If 1 mod got a chance of 50% then 2 mods stilll got the chance of 50% - but 2 times (Laplace).

Sidenote:
Hypothetical you could view your 50% jam chance from your post in boolean 'Yes i jam' and 'no jam,sry guys'.
If you´re now moving your ship in a perfect (and closed) system where all results are equaly distributed you´ll allready
hit a 100% jam-chance with 2 mods (with 50% chance to jam).

Though i might be VERY wrong and just bored at work.

EDIT:

No, it´s not additive. If you have a poor little bugger attacking your scorpion / falcon / rook fleet and you activate 1000 ecms on him (each 50% jam-chance) you still have a chance of 50% to jam him for each module. It´s not 99.9999999999%.

you didnt do well at math in school did you?

There is no Bob.

Stuck In Here With Me:  http://sihwm.blogspot.com.au/

Down the Pipe:  http://feeds.feedburner.com/CloakyScout

StoneCold
Decadence.
RAZOR Alliance
#9 - 2013-05-02 07:50:49 UTC
aye :( a huge and noobish mistake denied me summa *** laude. So i m just a magna *** laude math noob like 80% of all humans :/.
Bad Messenger
Rehabilitation Clinic
#10 - 2013-05-02 13:31:21 UTC
i like to note that jamming cause cancer so better to not use it.
Princess Nexxala
Zero Syndicate
#11 - 2013-05-02 15:00:23 UTC
I endorse this message.

Bad Messenger wrote:
i like to note that jamming cause cancer so better to not use it.

nom nom

Onomerous
Caldari Black Hand
Caldari Tactical Operations Command
#12 - 2013-05-02 16:01:45 UTC
chatgris wrote:
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.


Quote:
basically in a hypothetical where 1 mod has 50% chance to jam, 2 would have 75%, 3 87.5% ect.


^ these two ^



Quote:
i like to note that jamming cause cancer so better to not use it.

lol
Haulie Berry
#13 - 2013-05-02 16:03:45 UTC
StoneCold wrote:
Jack Miton wrote:

[...]
basically in a hypothetical where 1 mod has 50% chance to jam, 2 would have 75%, 3 87.5% ect.
[...]


I have to disagree. If 1 mod got a chance of 50% then 2 mods stilll got the chance of 50% - but 2 times (Laplace).



You... you have to disagree? Because you think it's a 50% chance 2 times, you say?

Guess what aggregate probability that comes out to.

Go on.

Guess.
Gizznitt Malikite
Agony Unleashed
Agony Empire
#14 - 2013-05-02 17:56:04 UTC  |  Edited by: Gizznitt Malikite
chatgris wrote:
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.


Actually, this is much more akin to a Geometric Distribution


TL; DR of the math below...

Number of jammers needed = log ( chance not jammed) / log ( 1 - p); where p = chance of single jammer working.

Example: If you want your opponent to only have a 1 in a million chance of not being jammed with a 33% chance of jamming per jammer, you need n = log (1/million) / log ( 1 - .33) = 34.4 = 35 jammers.

Math:
P(i) = P(Jammed once given x jammers ) = p * q ^ ( x - 1 ), where p = probability of a single jammer working, and q = 1 - p.

P ( Not Jammed with n jammers)
= 1 - Sum(from i=1 to n) [ P(i) ]
= 1 - p - pq - pq^2 - ... - pq^(n-1)
= 1 - p (1 + q + q^2 + .... + q^(n-1))
= 1 - p ( 1 - q^n ) / ( 1-q )
= 1 - p ( 1- q^n) / p
= 1 - 1 + q^n
= q^n
= (1 - p) ^ n

So, is there a magical n such that ( 1 - p ) ^ n = 0? Only if p = 1, or n = inf. is this absolutely true, although you can pragmatically hit it much, much easier, because you really only need it to be close to zero, not exactly zero.

How many jammers does it take for them to have a one in a million chance of not being jammed?
(1-p)^n = 1 / million,
rewritten: n log (1-p) = log ( 1 / million)
n = log ( 1 / million ) / log ( 1- p)
n = -6 / log ( 1 - p)
With a 33% chance of success, you need 35 jammers to jam out your opponent all but once every million cycles. With 18 jammers, they have a 1 in a thousand chance of not being jammed. With 12 jammer they have a 1 in a hundred chance of not being jammed
Bienator II
madmen of the skies
#15 - 2013-05-02 18:19:37 UTC
Coreemo wrote:
If multiple ships are multispectrum jamming one target, will that target eventually be perma-jammed, given enough ships?


2 mods/drones are twice as good as 1 mod/drone at the target. No stacking penalty is applied.

how to fix eve: 1) remove ECM 2) rename dampeners to ECM 3) add new anti-drone ewar for caldari 4) give offgrid boosters ongrid combat value

chatgris
Quantum Cats Syndicate
Of Essence
#16 - 2013-05-02 18:28:55 UTC  |  Edited by: chatgris
Gizznitt Malikite wrote:
chatgris wrote:
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.


Actually, this is much more akin to a Geometric Distribution



Thing is, the Geometric Distribution is effectively a subset of Bernoulli's.

"The probability distribution of the number of X Bernoulli trials needed to get one success"

Pretty much the same thing, and for the given question the Geometric distribution is easier to calculate. However, I tend to use Bernoulli's because I can look at the distribution and see things like "20% of the time, I'll have 2 successes which means I'll be able to try and jam a different target with my free jammer".
Deen Wispa
Sheriff.
United Caldari Space Command.
#17 - 2013-05-02 18:55:02 UTC
chatgris wrote:
Gizznitt Malikite wrote:
chatgris wrote:
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.


Actually, this is much more akin to a Geometric Distribution



Thing is, the Geometric Distribution is effectively a subset of Bernoulli's.

"The probability distribution of the number of X Bernoulli trials needed to get one success"

Pretty much the same thing, and for the given question the Geometric distribution is easier to calculate. However, I tend to use Bernoulli's because I can look at the distribution and see things like "20% of the time, I'll have 2 successes which means I'll be able to try and jam a different target with my free jammer".


Be honest. You just wanted to throw in those words so you can sound smarter than the rest of us.

High Five. Yeah! C'est La Eve .

chatgris
Quantum Cats Syndicate
Of Essence
#18 - 2013-05-02 19:16:59 UTC  |  Edited by: chatgris
Deen Wispa wrote:
chatgris wrote:
Gizznitt Malikite wrote:
chatgris wrote:
Basic stats - http://en.wikipedia.org/wiki/Binomial_distribution

If you flip it around, try to find the probability of 0 successes, and subtract that from 1.


Actually, this is much more akin to a Geometric Distribution



Thing is, the Geometric Distribution is effectively a subset of Bernoulli's.

"The probability distribution of the number of X Bernoulli trials needed to get one success"

Pretty much the same thing, and for the given question the Geometric distribution is easier to calculate. However, I tend to use Bernoulli's because I can look at the distribution and see things like "20% of the time, I'll have 2 successes which means I'll be able to try and jam a different target with my free jammer".


Be honest. You just wanted to throw in those words so you can sound smarter than the rest of us.


I thought I kept my language pretty plain and to the point... :(

I actually do this pretty much every time I am sizing up a target with ECM drones.

EDIT: I don't do it against griffins/falcons much since they can usually close to permajam me with one racial jammer, but I do do it on the rare occasion I pilot my own.
JAF Anders
Adenosine Inhibition
#19 - 2013-05-02 19:30:33 UTC
chatgris wrote:
Deen Wispa wrote:


Be honest. You just wanted to throw in those words so you can sound smarter than the rest of us.


I thought I kept my language pretty plain and to the point... :(

I actually do this pretty much every time I am sizing up a target with ECM drones or a griffin.


I'm really enjoying the technical dialogue here.

The pursuit of excellence and stabbed plexing alts.

chatgris
Quantum Cats Syndicate
Of Essence
#20 - 2013-05-02 19:47:46 UTC
Also, I thought that a large percentage of eve players were Computer Science guys, and this is first year stats.
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