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Questions tagged [elki]

ELKI is an open source data mining software with the focus on cluster analysis and outlier detection. It uses index structures for accelerating these algorithms.

ELKI is an open source data mining software with the focus on cluster analysis and outlier detection. In contrast to most other tools, it has support for index structures.

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ELKI how to increase the precision?

I am using ELKI mini GUI for clustering my data points. I have some 1300 GPS data points which I would like to cluster my GPS points (DBSCAN and OPTICS). As an input file for dbc.in I am using a csv file with only 2 columns (X,Y). The problem is, my…
user26161
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Why does ELKI need db.in file in addition to distance matrix? Also what should db.in file contain?

I tried to follow this tutorial on using ELKI with pre-computed distances for clustering. http://elki.dbs.ifi.lmu.de/wiki/HowTo/PrecomputedDistances I used the following set of command line options: -dbc.filter FixedDBIDsFilter -dbc.startid 0…
jason
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Very basic thing about ELKI

In fact, it seems to be so basic but Google did not give me an answers. I have downloaded ELKI, this gave me a .jar file. Now where do I put that archive/what do I do with it to be then able to use ELKI functions in my code? I know this has to be…
newnewbie
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How to use ELKI for DBSCAN with precomputed distance matrix

I've a precomputed distance matrix for all the points in my database. I'm trying to invoke ELKI gui with following command: /usr/share/java/elki.jar -dbc.in xml_files.1000 -dbc.filter FixedDBIDsFilter …
Yantra
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ELKI - input distance matrix

I'm trying to use ELKI for outlier detection ; I have my custom distance matrix and I'm trying to input it to ELKI to perform LOF (for example, in a first time). I try to follow http://elki.dbs.ifi.lmu.de/wiki/HowTo/PrecomputedDistances but it is…
Tilly
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How to use ELKI clustering with LatLngDistanceFunction

The default settings for clustering seems to work fine- specifically the EuclideanDistanceFunction. However, I want to run the clustering with spatial data in the form of lng/lat and when I change the distance function elki crashes on me: Running:…
tcb
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Running OPTICS algorithm on ELKI

I'm normally an R user (a beginning R user, but I'm starting to get the hang of it). However, I have heard positive things about ELKI--in particular, its speed. I came across this old post "How to group nearby latitude and longitude locations…
whistler
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how to install ELKI on windows?

I would like to install ELKI on windows and use clustering methods from python source code. The official documentation on the installation and use of their methods is not clear, which makes it difficult to handle their tool.
pedro colombino
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KMeans usage in ELKI, comprehensive example

I'd like to use the KMeans clustering algorithm, for example, Elkan's kmeans from ELKI in Scala to get the centroids of the clusters. A comprehensive example would be great because it's a bit difficult to navigate through the ELKI documentation.
Artavazd Balayan
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What will be the distanceFunction parameter for elki DBSCAN?

DBSCAN dbscan = new DBSCAN(distanceFunction,0.5,10); dbscan.run(db); Here what should I put in distanceFunction
Pinku
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How to run algorithms within elki-tutorial-0.7.0.jar?

I can run elki's algorithm with command like this: java -jar elki-bundle-0.7.1.jar But how to run algorithms within elki-tutorial-0.7.0.jar?
Alex Luya
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clustering geographic data in Java

My aim is to use a machine learning library so that I can cluster points (Lat/Long) and (x, y). I want to use an API that allows me to easily switch between different clustering algorithms. I started using Java-ML…
MTA
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How to generate multidimensional data with specific clustering properties?

In section 5.A of a research paper the researcher used the following synthetic datasets: GAUSS consisted of six Gaussian clusters with identity covariance, each with 500 points in five dimensions. Their means were randomly assigned a value from…
Ramseyl
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cluster external validation

I am using ELKI in order to perform location clustering with DBSCAN and OPTICS. My data set include 30 participants but it is not labeled but I do have pair of coordinates (e.g. home, work, etc) as each participant's frequent places. I want to know…
user1124825
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