Tagged Questions

Questions about machine-learning functionality of Mathematica, for instance involving, but not restricted to, `Predict`, `Classify`, `FindClusters` and the various regression functions.

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1
vote
1answer
70 views

Classify Function : Sentiment Polarity

I have been working on a project involving the new Classify[] function. More specifically, the sentiment analysis function. It works perfectly well, as in the documentation: ...
5
votes
1answer
116 views

Using Predict on images

I have a dataset of some (grayscale) images (stored as a list in inputImages) varying in size and content (this is example data from Wolfram, so you can run the ...
5
votes
1answer
97 views

Sentiment analysis of tweets

I want to use Mathematica for a sentiment analysis on tweet-messages. For that purpose i selected several tweets. Each tweet is interpreted by myself as positive (pos) of negative (neg). For example: ...
4
votes
2answers
100 views

Importing multiple images for machine learning classification

I want to create a ML classifier using images just like this example. I have two classes of images in two different folders. Is there an easier way to import all images from both folders rather than ...
5
votes
1answer
253 views

How to split a Dataset into training and testing for machine learning?

Suppose I have iris data In the Dataset Format. How to split the iris data Into training and testing for Machine learning? For example,Transform the data for Classify.
6
votes
2answers
89 views

ClassifierInformation's “ClassPriors” misreporting?

To the TLDR people It seems to me that when you explicitly set ClassPriors when running Classify, it creates a ...
9
votes
1answer
163 views

How can I export my learned ClassiferFunction[] and PredictorFunction[]s?

Mathematica 10 provides beautiful high-level machine learning functionality. Sadly, the learned functions once created are rather opaque objects. I need to use them in other projects, so here is my ...
2
votes
0answers
83 views

How do I obtain the Fisher Information Matrix from a data set?

My apologies in so much as this is probably in large part a problem of me not being aware of the necessary mathematics but since this should be a common issue in machine learning and Mathematica now ...
10
votes
1answer
326 views

Classify command in Mathematica 10

Where can I find documentation about the methods used in the Classify command in Mathematica 10? Specifically, how does the method ...
2
votes
3answers
186 views

Clustering data sets with multiple variables

I am learning how to cluster large datasets and this maybe a newbie question, but I haven’t found a suitable answer in the Documentation or on this board. My question is best illustrated by an ...
2
votes
0answers
227 views

Classify the classic tennis example

When using the classic tennis data (reference here) with Classify ...