What is the formula of the sigmoid/logistic function as a multivariable function? [on hold]Need function for 2D sigmoid-shaped monotonic SurfaceLogistic regression: Prove that the cost function is convexCost function of logistic regression: $0 cdot log(0)$What is a saturated function?Loss function for logistic regressionHow does the softmax function come about?Layman's explanation of how we can deduce certain qualitative properties of the sigmoid function from its formula?Logistic regression - Transposing formulasPartial derivative of sigmoid function with sum (sigma) inputHow should I calculate cost function based on SSE and Sigmoid values?Why Sigmoid function is so popular in every field of science?
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What is the formula of the sigmoid/logistic function as a multivariable function? [on hold]
Need function for 2D sigmoid-shaped monotonic SurfaceLogistic regression: Prove that the cost function is convexCost function of logistic regression: $0 cdot log(0)$What is a saturated function?Loss function for logistic regressionHow does the softmax function come about?Layman's explanation of how we can deduce certain qualitative properties of the sigmoid function from its formula?Logistic regression - Transposing formulasPartial derivative of sigmoid function with sum (sigma) inputHow should I calculate cost function based on SSE and Sigmoid values?Why Sigmoid function is so popular in every field of science?
$begingroup$
For one variable $sigma(x)= dfrac11+e^-x$
What about multivariable sigmoid i.e. $sigma(x,y,z,...)$ what is the formula?
logistic-regression
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
$endgroup$
put on hold as off-topic by Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh Mar 12 at 2:03
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh
|
show 1 more comment
$begingroup$
For one variable $sigma(x)= dfrac11+e^-x$
What about multivariable sigmoid i.e. $sigma(x,y,z,...)$ what is the formula?
logistic-regression
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
$endgroup$
put on hold as off-topic by Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh Mar 12 at 2:03
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh
$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28
|
show 1 more comment
$begingroup$
For one variable $sigma(x)= dfrac11+e^-x$
What about multivariable sigmoid i.e. $sigma(x,y,z,...)$ what is the formula?
logistic-regression
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
$endgroup$
For one variable $sigma(x)= dfrac11+e^-x$
What about multivariable sigmoid i.e. $sigma(x,y,z,...)$ what is the formula?
logistic-regression
logistic-regression
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
edited Mar 11 at 22:07
Mosab Shaheen
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
asked Mar 11 at 20:30
Mosab ShaheenMosab Shaheen
1167
1167
put on hold as off-topic by Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh Mar 12 at 2:03
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh
put on hold as off-topic by Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh Mar 12 at 2:03
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, Hans Lundmark, Lee David Chung Lin, Vinyl_cape_jawa, Shailesh
$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28
|
show 1 more comment
$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28
$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28
|
show 1 more comment
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$begingroup$
What is the definition of the function in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:27
$begingroup$
@user that is what I am asking
$endgroup$
– Mosab Shaheen
Mar 11 at 21:32
$begingroup$
Not exactly. For example the logistic function was introduced as solution of ODE $f_x=k f (F-f)$. What is the framework in the multidimensional case?
$endgroup$
– user
Mar 11 at 21:48
$begingroup$
@user I edited my question to be multivariable function. By the way what do you mean by ODE (what is the full form of ODE)?
$endgroup$
– Mosab Shaheen
Mar 11 at 22:05
$begingroup$
ordinary differential equation
$endgroup$
– user
Mar 11 at 22:28