Questions tagged [cluster-analysis]
Questions on the cluster analysis functions of Mathematica, including the Hierarchical Clustering Package.
173 questions
2 votes
2 answers
101 views
FindClusters with custom DistanceFunction
Let we have an array of integers e.g. Range@365. Each index has a specific value by which clusterization of integers should be done. But these values cannot be ...
- 2,590
1 vote
0 answers
60 views
How to compute the weight of each vertex in the generated clustering tree
In the documention of the "ClusteringTree", it is written that the result from ClusteringTree is a binary weighted tree, where the weight of each vertex indicates the distance between the ...
- 597
1 vote
1 answer
208 views
Extract the latent space learned from a Neural Network
I would like to visualize and cluster vectors learned in the latent space of a Neural Network. I am trying to cluster audio tokens, but I don't know what they represent. So the task is to ...
- 467
0 votes
0 answers
117 views
How can I cluster Iris data by GaussianMixture method into three parts?
Iris data has three kinds of labels. ...
- 8,669
5 votes
1 answer
160 views
FindClusters behaves strangely when an argument for number of clusters is passed
I have a question about FindClusters function. It seems that it behaves rather strangely when I pass a specific dataset to it. I am trying to use it in a bigger set ...
- 65
0 votes
0 answers
106 views
Identifying and tracking cluster elements in ClusterClassify for multiple time-steps of data
I have multiple time-steps of {x,y,z}coordinates data for some atoms. I would like to cluster the data for each frame and later identify how cluster compositions change and how each atom changes from ...
- 739
6 votes
1 answer
230 views
K-Mean Clustering Algorithm
I have implemented the k-Means Clustering Algorithm using the Wolfram Language. However, I think it can be more efficient. Do you have any idea how to make it more efficient (e.g., by removing the ...
- 159
2 votes
0 answers
182 views
Implement of faster(maybe paralleled) K-Means clustering
I am writing an algorithm that needs to add noise to the centroid of each iteration on top of KMeans. Therefore, I need to implement a custom KMeans function. I checked out the methods in Mathematica ...
- 544
0 votes
0 answers
35 views
7 votes
1 answer
183 views
How can I add legends in the ClusteringComponents function?
I am trying to do color separation on this image using ClusteringComponents function (following an example on Wolfram Mathematica webpage). I will like to have a legend identifying each segmented ...
- 655
1 vote
0 answers
119 views
FindClusters - Looking for advice in finding Clusters of Parameters
hope you're doing well I'm actually working with sets of parameters. For the sake of simplicity and replicability I'm formulating a general question altough it is related to this other question in ...
- 645
0 votes
1 answer
181 views
Where can I start studying a cluster of points on a scatter plot?
I'm not very experienced with Mathematica, please be patient.. I've a small dataset with just 2 columns that you can download here. The first column represents the amount of money earned every 1000 ...
- 540
1 vote
1 answer
106 views
Why do the points in a curve are connected to those in another after FindClusters?
I have a few questions about the function FindClusters. There's two group points data, and the following figures are obtained from these data. Figure 1-1 is the the ...
- 693
0 votes
1 answer
115 views
How to obtain the grouped separate line curves from the disorder data?
The sample point data and codes are listed as following. The point-image tells us that the data can be divided into nine groups. However, why are they divided into two groups by ...
- 693
0 votes
1 answer
109 views
How to plot clusters with binary matrix and coordinates?
I have to lists, xcor and ycor that contain the $x$-axis and $y$-axis coordinates of $N$ nodes. The nodes are divided into $C$ non overlapping clusters. The clustering information is provided in a ...
- 565