ELKI Multi-View Clustering Data Sets Based on the Amsterdam Library of Object Images (ALOI)

These data sets were originally created for the following publications:

M. E. Houle, H.-P. Kriegel, P. Kröger, E. Schubert, A. Zimek
Can Shared-Neighbor Distances Defeat the Curse of Dimensionality?
In Proceedings of the 22nd International Conference on Scientific and Statistical Database Management (SSDBM), Heidelberg, Germany, 2010.

H.-P. Kriegel, E. Schubert, A. Zimek
Evaluation of Multiple Clustering Solutions
In 2nd MultiClust Workshop: Discovering, Summarizing and Using Multiple Clusterings Held in Conjunction with ECML PKDD 2011, Athens, Greece, 2011.

The outlier data set versions were introduced in:

E. Schubert, R. Wojdanowski, A. Zimek, H.-P. Kriegel
On Evaluation of Outlier Rankings and Outlier Scores
In Proceedings of the 12th SIAM International Conference on Data Mining (SDM), Anaheim, CA, 2012.

They are derived from the original image data available at https://aloi.science.uva.nl/

The image acquisition process is documented in the original ALOI work: J. M. Geusebroek, G. J. Burghouts, and A. W. M. Smeulders, The Amsterdam library of object images, Int. J. Comput. Vision, 61(1), 103-112, January, 2005

Additional information is available at: https://elki-project.github.io/datasets/multi_view

The following views are currently available:

Feature type
Description
Files

Object number
Sparse 1000 dimensional vectors that give the true object assignment
objs.arff.gz

RGB color histograms
Standard RGB color histograms (uniform binning)
aloi-8d.csv.gz aloi-27d.csv.gz aloi-64d.csv.gz aloi-125d.csv.gz aloi-216d.csv.gz aloi-343d.csv.gz aloi-512d.csv.gz aloi-729d.csv.gz aloi-1000d.csv.gz

HSV color histograms
Standard HSV/HSB color histograms in various binnings
aloi-hsb-2x2x2.csv.gz aloi-hsb-3x3x3.csv.gz aloi-hsb-4x4x4.csv.gz aloi-hsb-5x5x5.csv.gz aloi-hsb-6x6x6.csv.gz aloi-hsb-7x7x7.csv.gz aloi-hsb-7x2x2.csv.gz aloi-hsb-7x3x3.csv.gz aloi-hsb-14x3x3.csv.gz aloi-hsb-8x4x4.csv.gz aloi-hsb-9x5x5.csv.gz aloi-hsb-13x4x4.csv.gz aloi-hsb-14x5x5.csv.gz aloi-hsb-10x6x6.csv.gz aloi-hsb-14x6x6.csv.gz

Color similiarity
Average similarity to 77 reference colors (not histograms) 18 colors x 2 sat x 2 bri + 5 grey values (incl. white, black)
aloi-colorsim77.arff.gz (feature subsets are meaningful here, as these features are computed independently of each other)

Haralick features
First 13 Haralick features (radius 1 pixel)
aloi-haralick-1.csv.gz

Front to back
Vectors representing front face vs. back faces of individual objects
front.arff.gz

Basic light
Vectors indicating basic light situations
light.arff.gz

Manual annotations
Manually annotated object groups of semantically related objects such as cups
manual1.arff.gz

Outlier Detection Versions

Additionally, we generated a number of subsets for outlier detection:

Feature type
Description
Files

RGB Histograms
Downsampled to 100000 objects (553 outliers)
aloi-27d-100000-max10-tot553.csv.gz aloi-64d-100000-max10-tot553.csv.gz

Downsampled to 75000 objects (717 outliers)
aloi-27d-75000-max4-tot717.csv.gz aloi-64d-75000-max4-tot717.csv.gz

Downsampled to 50000 objects (1508 outliers)
aloi-27d-50000-max5-tot1508.csv.gz aloi-64d-50000-max5-tot1508.csv.gz