Questions tagged [julia]

For questions regarding the Julia Programming language

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13
votes
5answers
12k views

Best Julia library for neural networks

I have been using this library for basic neural network construction and analysis. However, it does not have support for building multi-layered neural networks, etc. So, I would like to know of any ...
6
votes
0answers
176 views

Julia programming language [closed]

I've heard a lot of buzz for Julia programming language and how it's the future of AI. Should I buy into the hype and start learning Julia? Or do you think its better to stick to a better established ...
5
votes
2answers
2k views

Does anyone use Julia programming language? [closed]

Is anyone using Julia (http://julialang.org/) for professional jobs? Or using it instead of R, Matlab, or Mathematica? Is it a good language? If you have to ...
4
votes
1answer
347 views

Gradient Check is failing for RNN

I am trying out POS tagging using RNN but not able to figure out what's wrong in my implementation because of which the gradient check is failing. Please help. I am pasting the relevant part below: <...
3
votes
1answer
2k views

Neural network for MNIST: very low accuracy

I am working on solving the handwritten digit recognition problem by implementing a neural network. But the accuracy of the network is coming out to be very low, around 11% for the train dataset. I am ...
2
votes
0answers
89 views

Julia - Identity matrix - eye() alternative

I'm working with what I guess is an older textbook that is using an older version of Julia as they are using the eye() function to create an identity matrix, which appears to not exist in the version ...
1
vote
1answer
345 views

What should I master better for professional data science in economics and finance? [closed]

First, excuse me for the noob and long question which is probably doesn’t even belong to here, I know there are several question been answered like this out there, but I think this is going to be up-...
1
vote
1answer
15 views

Do I load all files at once or one at a time?

I currently have $1700+$ CSV files. Each of them is in the same format and structure, give or take a row or possibly a column at the end. Each CSV is $\approx 3.8$ MB. I need to perform a ...
1
vote
0answers
38 views

Is there a gradient descent-based optimization algorithm that works with non-linear constraints?

I have a function to optimize with ca. 200 parameters + one constraint (sum of squares of the parameters must be equal one) This problem can be solved using Lagrange Multipliers and my intuition ...
1
vote
1answer
188 views

Is there any way to collect categorical features quickly in Julia DataFrames?

I'm using Julia 0.6.3 with Dataframes.jl I was wondering if there was any way to get categorial features easily in Julia? For large datasets it can be impossible to enter everything by hand. My ...
0
votes
1answer
806 views

Julia - To Learn or Not to Learn? [closed]

I'm relatively new to data science, having done some machine learning projects at work. My background is in R, although I have some experience in Python. I'm considering choosing one language and ...
0
votes
1answer
26 views

How to limit a Julia notebook to a single core?

I'm running a Julia 1.4 notebook, via Jupyter lab. I need to limit the notebook to a single logical CPU core, on average. In Python I use the following incantation to restrict Numpy's CPU usage: ...
0
votes
0answers
17 views

dimensionality reduction of (partly) categorical metadata

I have several datasets, each with with hundreds of samples. I have different metadata for each data set, which contains about 50 variables per sample. Some of this metadata is clearly redundant. For ...