# Questions tagged [clustering]

The tag has no usage guidance.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
288 views

### Connectivity and Clustering using Eigenvectors and the Fiedler Vector

Going off of the answer here: sorting adjacency matrix by the Fiedler vector So here, Jesse the answerer plotted the first 3 eigenvectors associated with non-zero eigenvalues of the Laplacian against ...
123 views

### Clustering similar words and mapping to numbers in Python

I'm familiar with kmeans to cluster data points, but not text.. So I have one column of words in cvs format, which I want to cluster those which have similar word or more, and then mapping those ...
21 views

### Find all recurring subgraphs/patterns of maximal size in a single undirected, labeled, connected graph

I would like to identify all subgraphs of maximal size (maximum number of nodes) that are recurrent in a single undirected, labeled, connected graph. I provide exemples of input and expected output ...
45 views

### What is a performant clustering algorithm for approx 10,000 vectors of approx 30 dimension?

I have a set of real-valed vectors, for example $S = \{v_1, v_2, ..., v_k\}$ $v_i = \begin{pmatrix} age_i \\ height_i \\ weight_i \\ ... \end{pmatrix}$ or whatever. Each vector has on the order of ...
123 views

### Computing only the $k$ biggest eigenvalues and eigenvectors with Scalapack

Given that there are eigensolvers in Scalapack that use a divide and conquer method, is there any way we can use Scalapack functions to only compute the first $k$ dominant eigenvalues and ...
28 views

### Clustering by shared subsequence

I have a question that relates to the classical "longest common subsequence" problem. I'll give the background to the problem, but you could skip to the formulation below if you like Let's think of ...
I have a plant that can be modeled with nonlinear equations as $$f(x,u,p)=0$$ where $x$ is the state vector, $u$ the control vector, and $p$ the model parameters. In order to control this system, I ...