Top "Cluster-analysis" questions

Cluster analysis is the process of grouping "similar" objects into groups known as "clusters", along with the analysis of these results.

Variation on "How to plot decision boundary of a k-nearest neighbor classifier from Elements of Statistical Learning?"

This is a question related to https://stats.stackexchange.com/questions/21572/how-to-plot-decision-boundary-of-a-k-nearest-neighbor-classifier-from-elements-o For completeness, here's the original example from that …

r visualization cluster-analysis nearest-neighbor
Distributed hierarchical clustering

Are there any algorithms that can help with hierarchical clustering? Google's map-reduce has only an example of k-clustering. In case …

algorithm cluster-analysis hierarchical-clustering
mahout lucene document clustering howto?

I'm reading that i can create mahout vectors from a lucene index that can be used to apply the mahout …

indexing lucene cluster-analysis k-means mahout
DBSCAN for clustering data by location and density

I'm using the method dbscan::dbscan in order to cluster my data by location and density. My data looks like …

r machine-learning cluster-analysis data-mining dbscan
Cluster Analysis in R with missing data

So I spent a good amount of time trying to find the answer on how to do this. The only …

r cluster-analysis r-daisy
Clustering time series data in Python

I am trying to cluster time series data in Python using different clustering techniques. K-means didn't give good results. The …

machine-learning time-series cluster-analysis hierarchical-clustering
OPTICS Clustering algorithm. How to get the best epsilon

I am implementing a project which needs to cluster geographical points. OPTICS algorithm seems to be a very nice solution. …

java algorithm cluster-analysis data-mining optics-algorithm
Cluster high dimensional data with python and DBSCAN

I have a dataset with 1000 dimensions and I am trying to cluster the data with DBSCAN in Python. I have …

python cluster-analysis data-mining dbscan n-dimensional
Clustering GPS data using DBSCAN but clusters are not meaningful (in terms of size)

I am working with GPS data (latitude, longitude). For density based clustering I have used DBSCAN in R. Advantages of …

r cluster-analysis dbscan
How to extract clusters using OPTICS ( R package - dbscan , or alternatives )

This might be a mix of a R question and an algorithm question. The question is about both OPTICS in …

r cluster-analysis optics-algorithm