Arrhythmia (2% of outliers version#03)

Data set contains patient records classified as normal or as exhibiting some type of cardiac arrhythmia. In total, there are 14 types of arrhythmia and 1 type that brings together all the other different types. However, 3 types of arrhythmia have no data. Again, we treat healthy people as inliers and patients suffering from arrhythmia as outliers.

Download all data set variants used (9.2 MB). You can also access the original data. (arrhythmia.data)

Normalized, without duplicates
Not normalized, without duplicates

Normalized, without duplicates

This version contains 259 attributes, 248 objects, 4 outliers (1.61%)

Download raw algorithm results (2.2 MB) Download raw algorithm evaluation table (30.9 kB)

Best Parameters

The following table contains the best (overall and per-method) results for each method and evaluation measure (when the same score was achieved twice, only the smallest k is given).
The Maximum F1-Measure is complimentary in addition to the measures in the original publication.

Algorithm	k	P@n	Adj. P@n	AP	Adj. AP	Max-F1	Adj. MF1	ROC AUC
KNN	15	0.50000	0.49180	0.47439	0.46577	0.50000	0.49180	0.95287
KNN	32	0.50000	0.49180	0.55278	0.54545	0.66667	0.66120	0.96311
KNN	62	0.50000	0.49180	0.55441	0.54711	0.66667	0.66120	0.96516
KNNW	43	0.50000	0.49180	0.47500	0.46639	0.50000	0.49180	0.95389
KNNW	75	0.50000	0.49180	0.52564	0.51786	0.60000	0.59344	0.95902
KNNW	91	0.50000	0.49180	0.52703	0.51927	0.60000	0.59344	0.96107
LOF	1	0.25000	0.23770	0.15083	0.13691	0.33333	0.32240	0.63525
LOF	94	0.25000	0.23770	0.47316	0.46453	0.50000	0.49180	0.96107
SimplifiedLOF	1	0.25000	0.23770	0.30021	0.28874	0.40000	0.39016	0.82275
SimplifiedLOF	95	0.25000	0.23770	0.41389	0.40428	0.42857	0.41920	0.95902
SimplifiedLOF	97	0.25000	0.23770	0.41627	0.40670	0.42857	0.41920	0.96107
LoOP	1	0.25000	0.23770	0.30021	0.28874	0.40000	0.39016	0.82275
LoOP	95	0.25000	0.23770	0.40377	0.39400	0.40000	0.39016	0.95902
LDOF	2	0.50000	0.49180	0.45229	0.44331	0.57143	0.56440	0.90574
LDOF	94	0.25000	0.23770	0.36706	0.35669	0.40000	0.39016	0.94877
ODIN	65	0.25000	0.23770	0.14155	0.12748	0.25000	0.23770	0.91445
ODIN	68	0.25000	0.23770	0.16131	0.14756	0.28571	0.27400	0.91803
ODIN	94	0.25000	0.23770	0.16684	0.15318	0.28571	0.27400	0.92572
ODIN	100	0.25000	0.23770	0.16389	0.15018	0.28571	0.27400	0.92623
FastABOD	3	0.25000	0.23770	0.30590	0.29452	0.40000	0.39016	0.64857
FastABOD	99	0.25000	0.23770	0.40474	0.39498	0.42857	0.41920	0.93135
FastABOD	100	0.25000	0.23770	0.40504	0.39529	0.42857	0.41920	0.93238
KDEOS	14	0.00000	-0.01639	0.12493	0.11058	0.27273	0.26080	0.91393
KDEOS	19	0.00000	-0.01639	0.13113	0.11689	0.28571	0.27400	0.88012
KDEOS	21	0.25000	0.23770	0.12520	0.11086	0.25000	0.23770	0.82787
LDF	7	0.75000	0.74590	0.61417	0.60784	0.75000	0.74590	0.89959
LDF	24	0.75000	0.74590	0.79545	0.79210	0.85714	0.85480	0.98156
LDF	25	0.75000	0.74590	0.80000	0.79672	0.85714	0.85480	0.98361
LDF	43	0.50000	0.49180	0.45833	0.44945	0.66667	0.66120	0.98873
INFLO	1	0.25000	0.23770	0.29106	0.27944	0.40000	0.39016	0.77818
INFLO	95	0.25000	0.23770	0.41726	0.40771	0.40000	0.39016	0.95902
COF	26	0.25000	0.23770	0.38289	0.37277	0.40000	0.39016	0.91803
COF	48	0.75000	0.74590	0.69590	0.69092	0.75000	0.74590	0.88115
COF	49	0.75000	0.74590	0.75800	0.75403	0.85714	0.85480	0.87602
COF	62	0.75000	0.74590	0.75877	0.75482	0.85714	0.85480	0.88730

Plots

Precision at n

Adjusted precision at n

Average precision

Adjusted average precision

Maximum F1 score

Adjusted maximum F1 score

ROC AUC

Diversity

A: KNN, B: KNNW, C: LOF, D: SimplifiedLOF, E: LoOP, F: LDOF
G: ODIN, H: KDEOS, I: COF, J: FastABOD, K: LDF, L: INFLO

Not normalized, without duplicates