Arrhythmia (5% of outliers version#10)

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, 256 objects, 12 outliers (4.69%)

Download raw algorithm results (2.3 MB) Download raw algorithm evaluation table (44.4 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	1	0.25000	0.21311	0.15584	0.11432	0.27273	0.23696	0.76742
KNNW	1	0.25000	0.21311	0.16281	0.12164	0.28571	0.25059	0.75444
KNNW	6	0.25000	0.21311	0.15288	0.11121	0.27273	0.23696	0.76161
LOF	2	0.16667	0.12568	0.13934	0.09702	0.24000	0.20262	0.78381
LOF	12	0.25000	0.21311	0.17371	0.13307	0.30303	0.26875	0.76708
LOF	14	0.25000	0.21311	0.17447	0.13387	0.29412	0.25940	0.76400
SimplifiedLOF	11	0.25000	0.21311	0.16624	0.12524	0.34483	0.31261	0.75239
SimplifiedLOF	24	0.16667	0.12568	0.18077	0.14048	0.31250	0.27869	0.77493
LoOP	11	0.16667	0.12568	0.16070	0.11943	0.34483	0.31261	0.74590
LoOP	12	0.25000	0.21311	0.16106	0.11980	0.34483	0.31261	0.74590
LoOP	24	0.16667	0.12568	0.17757	0.13712	0.31250	0.27869	0.77117
LDOF	19	0.25000	0.21311	0.13588	0.09338	0.25000	0.21311	0.71960
LDOF	30	0.16667	0.12568	0.14962	0.10780	0.29412	0.25940	0.74624
LDOF	36	0.16667	0.12568	0.16627	0.12526	0.25000	0.21311	0.74898
LDOF	38	0.16667	0.12568	0.16085	0.11958	0.25641	0.21984	0.75478
ODIN	40	0.20000	0.16066	0.14568	0.10367	0.32258	0.28926	0.73992
ODIN	49	0.23077	0.19294	0.14832	0.10643	0.28571	0.25059	0.73788
ODIN	95	0.16667	0.12568	0.16531	0.12426	0.23256	0.19482	0.74146
ODIN	100	0.16667	0.12568	0.15458	0.11300	0.24390	0.20672	0.74522
FastABOD	8	0.25000	0.21311	0.12826	0.08539	0.25000	0.21311	0.71653
FastABOD	12	0.25000	0.21311	0.15393	0.11232	0.31579	0.28214	0.72746
FastABOD	16	0.25000	0.21311	0.16891	0.12804	0.28571	0.25059	0.72199
FastABOD	30	0.16667	0.12568	0.13734	0.09492	0.24000	0.20262	0.73873
KDEOS	59	0.16667	0.12568	0.10087	0.05665	0.19048	0.15066	0.69672
KDEOS	76	0.16667	0.12568	0.09755	0.05317	0.22222	0.18397	0.70116
KDEOS	91	0.16667	0.12568	0.11282	0.06919	0.20513	0.16604	0.71858
KDEOS	99	0.08333	0.03825	0.10960	0.06581	0.22222	0.18397	0.72609
LDF	1	0.16667	0.12568	0.14592	0.10391	0.24490	0.20776	0.73344
LDF	28	0.08333	0.03825	0.16831	0.12741	0.19048	0.15066	0.67999
LDF	74	0.00000	-0.04918	0.14093	0.09868	0.32258	0.28926	0.76093
INFLO	2	0.25000	0.21311	0.14312	0.10098	0.28571	0.25059	0.71380
INFLO	4	0.16667	0.12568	0.16374	0.12261	0.26923	0.23329	0.77186
INFLO	23	0.16667	0.12568	0.15972	0.11839	0.32258	0.28926	0.76400
COF	9	0.33333	0.30055	0.22852	0.19058	0.34783	0.31575	0.79645
COF	10	0.25000	0.21311	0.22823	0.19027	0.33333	0.30055	0.81148
COF	23	0.33333	0.30055	0.19673	0.15723	0.40000	0.37049	0.71960

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