Arrhythmia (2% of outliers version#04)

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 (28.2 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	0.50000	0.49180	0.53114	0.52345	0.66667	0.66120	0.82787
KNN	19	0.50000	0.49180	0.53986	0.53231	0.66667	0.66120	0.84221
KNN	33	0.50000	0.49180	0.54440	0.53693	0.66667	0.66120	0.83811
KNNW	1	0.50000	0.49180	0.53275	0.52509	0.66667	0.66120	0.84426
KNNW	40	0.50000	0.49180	0.53955	0.53200	0.66667	0.66120	0.83607
LOF	1	0.50000	0.49180	0.53139	0.52371	0.66667	0.66120	0.89344
LOF	100	0.50000	0.49180	0.53810	0.53053	0.66667	0.66120	0.79713
SimplifiedLOF	1	0.50000	0.49180	0.44850	0.43946	0.57143	0.56440	0.89344
SimplifiedLOF	2	0.50000	0.49180	0.52592	0.51814	0.66667	0.66120	0.84221
SimplifiedLOF	11	0.50000	0.49180	0.55475	0.54745	0.66667	0.66120	0.86066
LoOP	1	0.50000	0.49180	0.44850	0.43946	0.57143	0.56440	0.89344
LoOP	2	0.50000	0.49180	0.52480	0.51701	0.66667	0.66120	0.83504
LoOP	12	0.50000	0.49180	0.55787	0.55063	0.66667	0.66120	0.86168
LDOF	3	0.50000	0.49180	0.46129	0.45246	0.57143	0.56440	0.78791
LDOF	4	0.50000	0.49180	0.54502	0.53756	0.66667	0.66120	0.85041
LDOF	12	0.50000	0.49180	0.56292	0.55575	0.66667	0.66120	0.88320
LDOF	18	0.50000	0.49180	0.56603	0.55891	0.66667	0.66120	0.87090
ODIN	28	0.10526	0.09060	0.08917	0.07424	0.20000	0.18689	0.83402
ODIN	99	0.50000	0.49180	0.28453	0.27280	0.50000	0.49180	0.79867
ODIN	100	0.50000	0.49180	0.28693	0.27524	0.50000	0.49180	0.80020
FastABOD	3	0.50000	0.49180	0.45721	0.44831	0.57143	0.56440	0.82480
FastABOD	4	0.50000	0.49180	0.53820	0.53062	0.66667	0.66120	0.80020
FastABOD	8	0.50000	0.49180	0.56138	0.55419	0.66667	0.66120	0.86168
FastABOD	12	0.50000	0.49180	0.58983	0.58310	0.66667	0.66120	0.84016
KDEOS	3	0.25000	0.23770	0.07791	0.06280	0.25000	0.23770	0.56250
KDEOS	12	0.00000	-0.01639	0.14788	0.13391	0.33333	0.32240	0.84836
KDEOS	13	0.00000	-0.01639	0.10856	0.09395	0.23077	0.21816	0.85348
LDF	43	0.25000	0.23770	0.32362	0.31254	0.40000	0.39016	0.88012
LDF	76	0.50000	0.49180	0.40004	0.39020	0.50000	0.49180	0.80123
LDF	99	0.50000	0.49180	0.59896	0.59238	0.66667	0.66120	0.80225
INFLO	1	0.50000	0.49180	0.52183	0.51399	0.66667	0.66120	0.84324
INFLO	5	0.50000	0.49180	0.54116	0.53363	0.66667	0.66120	0.86373
INFLO	12	0.50000	0.49180	0.55781	0.55056	0.66667	0.66120	0.86066
COF	1	0.50000	0.49180	0.44850	0.43946	0.57143	0.56440	0.89344
COF	2	0.50000	0.49180	0.53036	0.52266	0.66667	0.66120	0.86270

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