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Hi h r, I'm not sure what you mean by "expression number". Are you trying to recursively define a function "In", so that In[i] depends on In[i-1] ? Or are you trying to define a List "In", so that In[[i]] depends on In[[i-1]] ?...
Sometimes when a press release uses "Neural Net" or "AI" they are sweeping a lot under the rug. A feed-forward neural network is a static filter whose coefficients are determined empirically by iterative optimization - referred to as "training" in...
Thank you Gianluca, I have implemented this in Graph[] as EdgeStyle -> Arrowheads[.05] I notice this is a scaled value, which must be tinkered with for each graph. Is there a means of setting an absolute size, e.g. in printers points? ...
Thank you Daniel, this is an eye-opener on how to use List or other Heads as the function in Outer and mapping operations.
Wow, thank you!
Daniel, In the case of a vector domain, some datasets will produce a numerically ill-conditioned covariance matrix. Some practitioners do not check or pay heed to error messages when the inverse is computed and thus the resulting measures can fail...
For text cleanup, I found that my old friend Regex was needed to clear punctuation. Also, I found occurrences of prefixed and postfixed adjectives (e.g., colors) in the names so I ended up sorting the words within a name: testCase =...
Please use the button (third from left) to provide some example rows of your table and also the operations you are trying to use.
Don't assume that Functional programming will always give you a faster runtime. Also don't assume that all Wolfram functions are purely single stream with no loops under the covers. Much of Mathematica's performance comes from platform-compiled...
Whether dynamic or static, discrete or continuous, a neural network is a probability density function. Back-propagation is a means of determining weights in a static feed-forward neural network. GE employed them in clothes dryers for automatic...