
Why do we use k-means instead of other algorithms?
Other clustering algorithms with better features tend to be more expensive. In this case, k-means becomes a great solution for pre-clustering, reducing the space into disjoint smaller sub-spaces …
clustering - How to decide on the correct number of clusters? - Cross ...
The L Method is described here: Determining the Number of Clusters/Segments in Hierarchical Clustering/Segmentation Algorithms Stan Salvador and Philip Chan Essentially this evaluates the fit …
Choosing a clustering method - Cross Validated
Because of the strong non-linear cluster in the second data set, the linkage and density clustering algorithms work far better than any centroid-based method. There is no similarity measure that will …
Applying clustering algorithms after t-SNE in R - Cross Validated
Apr 2, 2024 · So I'm doing my bachelor`s work and I'm applying different clustering algorithms on certain data. Before all the clustering of course I'm using a dimensionality reduction algorithm such as t-SNE …
What are the most common metrics for comparing two clustering ...
For clustering results, usually people compare different methods over a set of datasets which readers can see the clusters with their own eyes, and get the differences between different methods results. …
Clustering Algorithm for labeled data - Cross Validated
Nov 7, 2016 · Clustering algorithms will always perform much much worse compared to classification methods. If you have labels, use classification or regression instead of clustering!
Is it important to scale data before clustering? - Cross Validated
Mar 12, 2014 · I found this tutorial, which suggests that you should run the scale function on features before clustering (I believe that it converts data to z-scores). I'm wondering whether that is necessary.
Evaluation measures of goodness or validity of clustering (without ...
Jan 27, 2012 · Internal indices are used to measure the goodness of a clustering structure without external information (Tseng et al., 2005). For external indices, we evaluate the results of a clustering …
clustering - What algorithm should I use to cluster a huge binary ...
No need to use a specific binary clustering algorithm. kmeans is simple and clustering 650K vectors should be easily feasible on a decent desktop. 4 - If you wish to have binary cluster vectors as the …
Is there a decision-tree-like algorithm for unsupervised clustering?
May 5, 2016 · What you're looking for is a divisive clustering algorithm. Most common algorithms are agglomerative, which cluster the data in a bottom up manner - each observation starts as its own …