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Carlos Aya
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  • Sydney, NSW
  • Australia
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Carlos Aya commented on Vincent Granville's blog post The Fundamental Statistics Theorem Revisited
"Mr Granville, there are few "simplifications" in your post that deserve clarification - even more if you aim to reach a wide audience, only with high school level education. First, there is an importan caveat in the CTL: it only applies…"
Dec 8, 2016
Carlos Aya commented on Jacob Joseph's blog post Outlier Detection with Parametric and Non-Parametric methods
"Please note that "The density curve for the actual data is shaded in ‘pink’" must be read with a bit of salt. There is no density curve for actual data; you have density approximations using a number for nonparametric…"
Apr 11, 2016
Carlos Aya commented on Sean McClure's blog post The Only Skill you Should be Concerned With
"Problem solving through Mathematics! (Statistics is just a branch, but without maths' wider toolset you are certainly lost)"
Mar 31, 2016
Carlos Aya commented on Brian Rowe's blog post Is deep learning a Markov chain in disguise?
"If the weights in a NN stabilise/converge, they are a fixed point of the learning & recurrence equations.  The Markov comment is just a hunch: what you are saying reminded me of autoregressive models and their characteristic equation.…"
Feb 28, 2016
Carlos Aya commented on Brian Rowe's blog post Is deep learning a Markov chain in disguise?
"Interesting read, an argument worth taking to the formal level (if not done already) > For this post, I used a sequence of length 5, so the Markov chain is picking a next state based on the previous five states. I bet you are uncovering a 5…"
Feb 25, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"Sione, the news you mention about gravitational waves is quite pertinent. If one reaches the news in a specialised source (Physics Letters if I recall), you will find that the researchers applied the model I mentioned below (from Terry Speed's…"
Feb 14, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"> All right Carlos, I agree. We simply have different perspectives Meaning "I agree but I don't" ? > For you, mathematics axioms that are true by themselve are all. Sad you put in my mouth things I have never…"
Feb 12, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"Carlos, mathematics has been enriched over 2000 years by looking at data from real problems. Topology is just an abstraction that has been proved useful. Is it possible to find new concepts in topology (or statistics or maths) by looking at…"
Feb 11, 2016
Carlos Aya replied to L.V.'s discussion A Tough Calculus Question
"a^(1/r) is not the inverse of a^r in the complex plane. Therefore, you cannot apply power laws to sqrt(_) as it embodies the choice of a particular branch of a^(1/2) in the complex plane, namely the one for which (-1)^(1/2) = (0,1) = i [the other…"
Feb 11, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"Carlos, it seems you are not supporting your claims with data. Sad. I recommend to you reading http://businessoverbroadway.com/empirically-based-approach-to-understanding-the-structure-of-data-science ..."
Feb 9, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"Sione, wavelet theory was sourced by the work of physicist, engineers and mathematicians - mainly those working on PDE and approximation theory. Being within the realm of mathematics, statisticians naturally pick them up :) The intro on this book…"
Jan 19, 2016
Carlos Aya commented on Vincent Granville's blog post 16 analytic disciplines compared to data science
""statistics has become a narrow field not adapting to new data, and not innovating"  Oh, ignorance..."
Jan 19, 2016
Carlos Aya commented on Vincent Granville's blog post What statisticians think about data scientists
"You all should read D. Donoho's "50 years of data science" too. http://courses.csail.mit.edu/18.337/2015/docs/50YearsDataScience.pdf"
Jan 19, 2016
Carlos Aya commented on Vincent Granville's blog post 10 Modern Statistical Concepts Discovered by Data Scientists
"Dear Vincent, "unaware of any statistical science contribution to data science" -> Tongue in cheek, right :) ? I do acknowledge that data abundance and (more importantly) the universal availability of computers have posed a tremendous…"
Mar 6, 2015

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