860 reputation
316
bio website memming.wordpress.com
location
age 35
visits member for 2 years, 10 months
seen 22 hours ago

I do research in machine learning, information theory, and computational neuroscience.


Dec
12
awarded  Nice Question
Sep
30
awarded  Explainer
Sep
26
comment Asymptotes. Calculus.
it's asymptotically linear as x goes to $\pm\infty$.
Sep
24
awarded  Autobiographer
Sep
18
revised How to compute the topological entropy of a permutation?
making it clear which entropy we are talking about here
Sep
18
comment How to compute the topological entropy of a permutation?
I'm not sure what this 'induced matrix' is, how is shannon entropy defined for a permutation (what is the random variable here?). Can you clarify?
Sep
18
suggested approved edit on How to compute the topological entropy of a permutation?
Sep
8
comment Complexity of FFT Algorithm
correct, and welcome. I don't think this question is appropriate for math.SE though. It doesn't have enough details to benefit future visitors...
Sep
7
revised Using a matrix to answer Ax=b question
matrix form formatting
Sep
7
suggested approved edit on Using a matrix to answer Ax=b question
Sep
2
comment Is this function concave or can it be made concave?
Well, clearly you asked a similar question on both SE's: stats.stackexchange.com/q/113872/8960
Aug
31
comment The probability of having $k$ successes before $r$ failures in a sequence of independent Bernoulli trials
Isn't this exactly the negative binomial distribution?
Aug
29
comment Linear Algebra problem (related to transpose matrices)
what's $A$? Please define all the terms.
Aug
26
comment How does dot product work in matrix algebra?
Ohhhhh, same answer!
Aug
26
answered How does dot product work in matrix algebra?
Aug
21
answered Analyzing the logical form of “All married couples fight”
Aug
17
answered Distance measures for binary data
Aug
17
comment Similarity measurement for strings of letters
Indeed, edit distance is a good first choice. See also: en.wikipedia.org/wiki/String_metric
Aug
16
comment Numerically approximate the maximum of an element of a vector after a series of matrix multiplications.
This is dual of fitting the first layer of a multilayer perceptron. There's no easy method for this. Good luck!
Aug
16
comment Maximizing “log det + log sum exp” function
Actually, this might not work...