Arrhythmia (5% of outliers version#06)

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 (42.1 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	3	0.33333	0.30055	0.39212	0.36223	0.46154	0.43506	0.70236
KNN	10	0.50000	0.47541	0.42389	0.39555	0.52174	0.49822	0.68887
KNN	48	0.50000	0.47541	0.42854	0.40044	0.52174	0.49822	0.68921
KNNW	7	0.33333	0.30055	0.38872	0.35865	0.44444	0.41712	0.69399
KNNW	33	0.41667	0.38798	0.40455	0.37527	0.44444	0.41712	0.68613
KNNW	45	0.41667	0.38798	0.40949	0.38045	0.48000	0.45443	0.68545
KNNW	89	0.41667	0.38798	0.41036	0.38136	0.46154	0.43506	0.68579
LOF	6	0.25000	0.21311	0.33865	0.30612	0.37500	0.34426	0.75342
LOF	8	0.41667	0.38798	0.35119	0.31928	0.42857	0.40047	0.74522
LOF	12	0.41667	0.38798	0.39793	0.36832	0.48000	0.45443	0.72609
LOF	100	0.41667	0.38798	0.40998	0.38097	0.48000	0.45443	0.68204
SimplifiedLOF	11	0.41667	0.38798	0.39264	0.36277	0.44444	0.41712	0.74078
SimplifiedLOF	14	0.41667	0.38798	0.38330	0.35297	0.45455	0.42772	0.74556
SimplifiedLOF	23	0.33333	0.30055	0.40845	0.37935	0.47059	0.44455	0.73122
SimplifiedLOF	25	0.33333	0.30055	0.41029	0.38129	0.47059	0.44455	0.72951
LoOP	10	0.50000	0.47541	0.40091	0.37145	0.50000	0.47541	0.74010
LoOP	14	0.41667	0.38798	0.40373	0.37441	0.45455	0.42772	0.74351
LoOP	21	0.33333	0.30055	0.41101	0.38204	0.47059	0.44455	0.73668
LDOF	4	0.33333	0.30055	0.29748	0.26293	0.34783	0.31575	0.71824
LDOF	19	0.33333	0.30055	0.37128	0.34036	0.40000	0.37049	0.76469
LDOF	68	0.33333	0.30055	0.40667	0.37749	0.47059	0.44455	0.73156
ODIN	6	0.14286	0.10070	0.11280	0.06917	0.22951	0.19162	0.72729
ODIN	55	0.26667	0.23060	0.17714	0.13667	0.38710	0.35695	0.69826
ODIN	67	0.35714	0.32553	0.21597	0.17741	0.36364	0.33234	0.69911
ODIN	100	0.33333	0.30055	0.27037	0.23449	0.38095	0.35051	0.69416
FastABOD	13	0.50000	0.47541	0.40830	0.37920	0.50000	0.47541	0.67008
FastABOD	68	0.33333	0.30055	0.36916	0.33814	0.40000	0.37049	0.70253
KDEOS	13	0.00000	-0.04918	0.11403	0.07046	0.27027	0.23438	0.69911
KDEOS	20	0.16667	0.12568	0.11094	0.06722	0.20896	0.17005	0.72917
KDEOS	91	0.00000	-0.04918	0.11761	0.07421	0.25806	0.22158	0.69672
LDF	51	0.33333	0.30055	0.23892	0.20149	0.42105	0.39258	0.70116
LDF	88	0.41667	0.38798	0.32684	0.29374	0.41667	0.38798	0.65027
LDF	90	0.41667	0.38798	0.38642	0.35624	0.47059	0.44455	0.65301
LDF	91	0.41667	0.38798	0.37327	0.34245	0.47619	0.45043	0.65847
INFLO	10	0.50000	0.47541	0.38636	0.35619	0.50000	0.47541	0.72473
INFLO	12	0.41667	0.38798	0.42457	0.39627	0.47619	0.45043	0.72883
INFLO	19	0.33333	0.30055	0.40432	0.37502	0.47059	0.44455	0.74727
COF	6	0.33333	0.30055	0.28643	0.25134	0.38095	0.35051	0.70765
COF	8	0.33333	0.30055	0.32919	0.29619	0.42105	0.39258	0.70765
COF	9	0.33333	0.30055	0.32586	0.29271	0.40000	0.37049	0.72063
COF	10	0.33333	0.30055	0.33186	0.29900	0.42105	0.39258	0.71585

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