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Output index of ELKI


Output index of ELKI

By : C.Flat91
Date : October 23 2020, 08:10 AM
wish helps you DBIDs are internal; the documentation clearly says that you shouldn't make too much assumptions on them because their implementation may change. The only reason they are written to the output at all is because some methods (such as OPTICS) may require cross-referencing objects by this unique ID.
Because they are meant to be unique identifiers, they are usually continuously incremented. The next time you click on "run" in the MiniGUI, you will get the next n IDs... so clearly, you clicked run more than once.
code :


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ELKI DBSCAN R* tree index

ELKI DBSCAN R* tree index


By : Damian Rybicki
Date : March 29 2020, 07:55 AM
like below fixes the issue The ELKI command line (and MiniGui; which is a command line builder) allow to specify shorthand class names, leaving out the package prefix of the implemented interface.
The full command line documentation yields:
code :
-db.index <object_1|class_1,...,object_n|class_n>
    Database indexes to add.
    Implementing de.lmu.ifi.dbs.elki.index.IndexFactory
    Known classes (default package de.lmu.ifi.dbs.elki.index.):
    -> tree.spatial.rstarvariants.rstar.RStarTreeFactory
    -> ...
de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.rstar.RStarTreeFactory
params.addParameter(AbstractDatabase.Parameterizer.INDEX_ID,
    RStarTreeFactory.class);
// Bulk loading static data yields much better trees and is much faster, too.
params.addParameter(RStarTreeFactory.Parameterizer.BULK_SPLIT_ID, 
    SortTileRecursiveBulkSplit.class);
// Page size should fit your dimensionality.
// For 2-dimensional data, use page sizes less than 1000.
// Rule of thumb: 15...20 * (dim * 8 + 4) is usually reasonable
// (for in-memory bulk-loaded trees)
params.addParameter(AbstractPageFileFactory.Parameterizer.PAGE_SIZE_ID, 300);
ELKI - How get clusters from elki's cluster object order file?

ELKI - How get clusters from elki's cluster object order file?


By : Luiz Fernando Dubiel
Date : March 29 2020, 07:55 AM
Any of those help The OPTICS class does not (by design) produce clusters.
Instead, it produces the cluster order as defined by OPTICS.
Add index to relation in ELKI

Add index to relation in ELKI


By : Nelsoft Android1
Date : March 29 2020, 07:55 AM
Hope that helps To instantiate a class via the parameterization API, you don't need to create a new parameter.
code :
RStarTreeFactory<DoubleVector> f = 
  ClassGenericsUtil.parameterizeOrAbort(RStarTreeFactory.class, params);
How to store index in ELKI?

How to store index in ELKI?


By : syed yusha
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , The disk deserialization code has been unused for years, and thus is likely broken.
I am even not sure if it ever fully supported reading back the index from disk standalone; I assume it was only implemented to simulate an on-disk index for benchmarking purposes (i.e., it will read and write the data from disk, but it probably cannot read an existing index).
elki-cli versus elki gui, I don't get equal results

elki-cli versus elki gui, I don't get equal results


By : Hemanth
Date : March 29 2020, 07:55 AM
this will help Pass cli as first command line parameter to launche the CLI, or minigui to launch the MiniGUI. The following are equivalent:
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