All Questions
Tagged with machine-learning data
15 questions
3
votes
1
answer
77
views
StandardizedVector returned by FeatureExtract/FeatureExtraction is not the same as Standardize
The documentation would suggest that the "StandardizedVector" option of FeatureExtract and FeatureExtraction should give the same results as Standardize ("numeric data processed with ...
- 3,388
0
votes
0
answers
26
views
Neural Network erros in NetEncoders?
I'm making a fairly complex neural network, and I've listed all the ports, the network flow, and the layers well. However, when I tried to run the NetGraph, it gave me the error message
...
9
votes
2
answers
803
views
A strategy to create good initial guess for Lorentzian model fit
I was preparing an answer for a question that got deleted, so I will post this anyhow.
Given a set of data with a hump
...
- 37.4k
3
votes
1
answer
40
views
Retain Values in new column when Appending a column to an existing dataset
I am working on a basketball data set. I am trying to append a "Class" column which looks at the "Pos" column and assigns a 1 if a forward (C, PF, SF) or a 2 if a guard (PG, SG). I ...
- 41
4
votes
1
answer
171
views
3
votes
1
answer
643
views
How can I normalize a dataset relative to data already given previously?
Some scientific libraries, like Scikit-Learn for Python are able to create normalizing/standardizing functions based on data that is previously given. Looking at the documentation for ...
- 1,447
1
vote
0
answers
246
views
Machine Learning / Deep learning using Mathematica? [closed]
I am looking forward to the recommendation to learn ML/DL in Mathematica
I know that there are plenty of resources web sites and books, MOOC to learn Machine Learning and Deep Learning mostly in ...
- 545
4
votes
1
answer
114
views
Detecting Lines in Data
I have some data representing a vaguely periodic signal, here is a sample
...
- 829
15
votes
2
answers
1k
views
How to do Independent Component Analysis?
The new experimental function in 10.3.1 DimensionReduce[], has the following three options for Method:
...
- 31.8k
2
votes
1
answer
143
views
Using Predict to fill in missing data
I am attempting to use Predict[] to fill in the missing data in the dataset below;
...
- 847
0
votes
0
answers
128
views
Creating a prediction/distribution based on several years of data
So I have several years of data from a survey. For each year I've used FindDistribution and Predict to see if I can fit the data. Here's one example
Where I used FindDistribution to get
...
- 409
4
votes
0
answers
513
views
Using Machine Learning techniques for text-analysis
I am analysing a bunch of tweets and I want to understand which political party the authors support.
Let say, for example that I have five parties labelled by a number: ...
- 1,688
1
vote
0
answers
135
views
K-medians clustering computation
Is there a built-in function for data clustering using k-medians algorithm? I found out about the ClusterDissimilarityFunction of the ...
- 113
4
votes
0
answers
101
views
Candidate sampling for softmax neural networks in mathematica
Though I've been using mathematica for a few years, I've never really delved into its ML capabilities (except for the occasional clustering). I'm curious if anyone who has some experience using ...
- 173
2
votes
1
answer
236
views
Convert table data to Classifier data
I want to convert excel data into Classifier acceptable data. For Eg, the inbuilt Titanic data for Classifier is structured as below:
{"1st", 29., "female"} -> "survived"
I have 4 columns in Excel ...
- 23