All Questions
Tagged with machine-learning or machine-learning
682 questions
0
votes
1
answer
94
views
Classify does not work with my training set [closed]
I tried using Classify. It gives the wrong answer even for training data.
c = Classify[trainingset];
c[13]
...
- 108k
8
votes
1
answer
724
views
Train your own CycleGAN style translator
I have a set of images (a few hundred) that represent a certain style and I would like to train an unpaired image to image translator with CycleGAN.
I'm looking for a tutorial on how one would do ...
- 3,388
1
vote
1
answer
156
views
Recognizing letters in grid with TextRecognize
Here is the test image:
You might recognize this as a Boggle board. I want to translate the image into a 4x4 array of letters. Not quite sure how to deal with rotated letters and ambiguous letters ...
- 25.9k
3
votes
1
answer
158
views
Fitted equation with Predict
Is there a way to know the fitted curved from the function Predict when choosing the linear regression method.
I am using this data:
...
- 401k
5
votes
1
answer
332
views
How can I plot this one-dimensional Self Organizing (Kohonen) Map?
Mathematica used to have a package called NeuralNetworks that is not currently working. With that package, you could create a Kohonen or Self Organizing Map (https://en.wikipedia.org/wiki/Self-...
- 71.2k
4
votes
1
answer
114
views
Detecting Lines in Data
I have some data representing a vaguely periodic signal, here is a sample
...
- 25.9k
2
votes
0
answers
119
views
Create New Type of Layer For Neural Network
I'm doing some work exploring modelling neural networks in which each neuron could represent a different type of physical system. What I want to do is, I think, quite different to what an ordinary ...
- 236k
2
votes
0
answers
78
views
What are all the machine learning methods that can be used for Predict?
When I'm writing code for the Predict function, it allows me to choose what method I want to use. There are 7 options available from the drop-down after I type in <...
- 539
6
votes
1
answer
1k
views
Save neural network after training
I've written quite a few projects that involve training a neural network through the Classify and Predict functions, but every ...
- 13.2k
4
votes
0
answers
168
views
Probem of Classify's Tree Method in Batch Predict
$Version
12.1.0 for Microsoft Windows (64-bit) (March 14, 2020)
...
- 8,649
7
votes
1
answer
294
views
Decoding Music in Staff Notation using ImageIdentify
I wrote this Code fragment
Which is a E (quarter) note in Treble Clef. Instead Mathematica simply classified it as a "musical note"
Can we do better?
CommunityBot
- 1
6
votes
2
answers
4k
views
Neural network: Line detection in Image
I am playing around with Mathematica's new Neural Network toolbox and am trying to teach a network to detect lines in quite noisy images.
An example Input image would look like the following:
The ...
- 1,535
2
votes
1
answer
124
views
LogitModelFit crashes with large learning set
I am using LogitModelFit to implement a classification system for handwritten digits, based on the MNIST ExampleData set. The ...
0
votes
0
answers
132
views
Neural network symbolic inputs and weights
If I create a neural network like, for example, so:
...
- 3,167
0
votes
0
answers
126
views
Interpolated Hyperbolic tangent as a layer of a neural network
It is necessary to specify piecewise linear interpolation of the hyperbolic tangent. And substitute this function as a layer of a neural network. I tried a lot of things, please suggest your options.)
...
- 11
0
votes
0
answers
94
views
Network training error InvalidJSON
I want to insert piecewise linear interpolation of the hyperbolic tangent into the neural network. An error occurs at the stage of training the network.
trainingData:
...
- 11
21
votes
4
answers
564
views
Find best region to put text onto image
Given an image upon which you want to inset text, the question arises:
What is the best sub-region to place text?
For example, given a background image I want to find the rectangle in the image (...
- 19.1k
5
votes
1
answer
440
views
How to paraphrase text?
I'm looking to train or use pre-trained models in order to re-phrase text. Are there any natural language models in the Wolfram Neural Repository (or elsewhere) that can be used to paraphrase text?
...
- 31.8k
15
votes
1
answer
377
views
Advanced usage of BayesianMaximization?
There’s an example in the docs for BayesianMaximization for optimizing two suboptions of a classifier with a fixed method. I would like to optimize over multiple options for Method and their various ...
5
votes
0
answers
241
views
Seq2Seq RNN with an AttentionLayer
In many Sequence to Sequence machine learning tasks, an Attention Mechanism is incorporated.
Before Transformer Networks, introduced in the paper: Attention Is All You Need, mainly RNNs were used to ...
- 428
2
votes
0
answers
33
views
Retrain an existing ClassifierFunction with new data
Classify[] and Predict[] generate nice ClassifierFunnction, but it is not clear to me whether these can be retrained on new data, without the data originally used for training.
4
votes
1
answer
5k
views
GPU support on latest MacBook Pro, especially for deep learning
I'm thinking about getting some new top of the line computer hardware, specifically a MacBook Pro from Apple. These have AMD Radeon Pro 5500M GPUs, which while a bit slower than something like an ...
- 13.2k
12
votes
1
answer
391
views
Can Predict/Classify be parallelized?
Being able to parallelize Predict /Classify would be useful on multiple fronts:
Performance/Scale
Streaming
Pedagogical
...
- 236k
3
votes
0
answers
76
views
Clarity on Classify's ClassPriors option
I'm looking for clarity on Classify's ClassPriors option, and I've listed some specific questions below. According to the documentation:
ClassPriors is an option ...
- 236k
0
votes
0
answers
66
views
Unable to replicate Predict/NeuralNetwork example from Help Pages
I am trying to replicate an example right out of the help manual (ref/method/NeuralNetwork). This example compares the convolutional NN versus a fully-connected NN....
- 236k
4
votes
0
answers
133
views
Neural network for a simple game?
I'm taking a class that is based on the Mathematica coding language, and we must do a 6-week final project. I am considering coding a neural network for a simple game like 2048, pacman, snake, etc. ...
- 73.4k
9
votes
2
answers
327
views
Can I use Mathematica to generate candle scents?
I found this blog (which is highly entertaining). It has an interesting post where the author uses the GPT-2 neuro-network with candle scent training data to generate new candle scents. The AI comes ...
- 4,778
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
9
votes
1
answer
311
views
How to implement BlazeFace?
BlazeFace is a lightweight and well-performing face detector tailored for mobile GPU inference. It runs at a speed of 200-1000+ FPS on flagship devices. How to implement BlazeFace in Mathematica?
- 9,621
3
votes
2
answers
349
views
How to make Hinton diagrams
I just start studying machine learning with Mathematica and, I want to know how make Hinton diagrams. Can someone give an idea, please?
- 401k
14
votes
0
answers
604
views
How to plug holes in an Image (with partial convolutions)?
NVIDIA recently published a new way to reconstruct images with holes. They use a new type of convolutional layer which is described in the paper Image Inpainting for Irregular Holes Using
Partial ...
- 3,820
48
votes
3
answers
3k
views
Generalized Backpropagation for Neural Networks (e.g. DeepDream)
Is there currently any way to abuse NetTrain to maximize an arbitrary cost/utility -function in some hidden layer and/or even modify the input to increase neuron ...
- 10.4k
5
votes
0
answers
167
views
Is there a way to get the decision trees used by machine learning methods like `RandomForest`?
I was looking at a tutorial of SimFin, a new German-based financial data provider.
There is a nice example of machine learning using sklearn in python. The package ...
4
votes
1
answer
184
views
Adding Noise in Neural Net via ElementwiseLayer
I am trying to add noise to a neural net to train a denoising autoencoder. I don't want to pre-calculate the noisy data. Rather, I'd like the noise be applied via a function using the ElementwiseLayer....
- 13.2k
1
vote
0
answers
57
views
Training with GPU and tuning parameters with ParallelTable
We intend to train a neural network. It has a hyperparameter, such as the learning rate. We want to compare the training results of different hyperparameters. Our computer has two multi-core CPUs and ...
- 11
2
votes
2
answers
133
views
Usage and meaning of "ProbabilityHistogram"
When doing a classification one can determine the ClassifierMeasurements to get Information about the classifier. I now wanted to get a histogram of the computed probabilities for a classifier. Maybe ...
- 42.9k
0
votes
2
answers
122
views
What's wrong with FindFormula after I set the value of x from 100 to 1000?
The first code here.
x = 100;
list4 = Table[i^2, {i, 3, x}]; list5 = Table[3 i, {i, 3, x}];
Transpose[{list4, list5}] // FindFormula
Output:
...
CommunityBot
- 1
6
votes
0
answers
186
views
How can I prevent errors with ReplicateLayer[]?
I am trying to build a NetGraph[] that takes input of the form {{0.6},{0.6},...,{0.8},{0.8}} and multiplies the last sequence ...
- 1,447
8
votes
2
answers
946
views
Resources to learn about Neural Nets using Mathematica?
I'm interested in learning about Neural Nets and I'd really like my instruction to be in Mathematica if possible.
For instance, a tutorial like this one: http://neuralnetworksanddeeplearning.com/...
- 38k
2
votes
0
answers
76
views
Fuzzy Logic and Neural Networks
Is anyone working on building a Fuzzy Logic module that can be used for the output of Neural Networks?
Thank You
Michel
- 191
2
votes
0
answers
417
views
is the code of this reinforcement learning example correct?
I am trying to learn reinforcement learning from an article on Wolfram.com, and after several days I still cannot quite get everything right. Now I wonder about the correctness of a piece of code ...
- 131
2
votes
1
answer
111
views
How can I use ThreadingLayer to perform operations with layers of different dimmensions?
Is there a way that I can achieve subtraction between a scalar and a vector within NetGraph[], similar to what happens when I perform ...
- 619
4
votes
1
answer
209
views
Controlling learning rate decay or cyclic learning rate in Mathematica's neural nets
I am using Mathematica's NetTrain[] function for training neural nets. There is a way to set the learning rate (LearningRate and ...
- 67.7k
7
votes
1
answer
156
views
Logistic Regression classifier in Versions 12 vs 11.3
There is a mysterious "LogisticRegression" method in MMA, which could be applied as a substitution for missing multinomial logit functionality.
In version 11.3 I had the following simple 3-category ...
- 2,780
14
votes
3
answers
605
views
Importing a grid of numbers from an image (sudoku like)
Can anyone see a way to import a grid of numbers from
http://www.mit.edu/~puzzle/2019/puzzle/lantern_festival.html
into Mathematica? TextRecognize doesn't seem ...
- 1,589
3
votes
1
answer
654
views
Rounding the output Vector of a Neural Network layer to prepare it for the next layer
I am attempting to Round up the output Vector of a Neural Network layer to prepare it for the next layer
Ex. Layer output {.1.,2.2,3.3} and I need it to be a Vector of Integers for the next layer.
I ...
- 619
1
vote
0
answers
83
views
How to run least confident based uncertainty sampling
This is a rather open-ended question. I am currently using Classify to run a Random Forest and I would like use an active learning algorithm on it. The most conducive would be least confident based ...
- 547
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 ...
- 67.7k
7
votes
1
answer
983
views
How to find similar words from the provided list?
Let's say I have created a list of words that are acceptable in a certain context.
list = {...};
Now given a new or some existing word from the list I want to ...
- 73.4k
11
votes
1
answer
723
views
Deep learning outperforms in symbolic integration and ODE?
There comes a new paper on arXiv (arXiv 1912.01412, Deep Learning for Symbolic Mathematics by
Guillaume Lample, François Charton) claiming that a deep learning model outperforms Mathematica a lot in ...
CommunityBot
- 1