Arrhythmia (2% of outliers version#01)

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 (33.7 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	0.23770	0.27756	0.26572	0.40000	0.39016	0.72387
KNN	95	0.25000	0.23770	0.29908	0.28759	0.40000	0.39016	0.79303
KNNW	1	0.25000	0.23770	0.27799	0.26615	0.40000	0.39016	0.71875
KNNW	100	0.25000	0.23770	0.28730	0.27562	0.40000	0.39016	0.76742
LOF	1	0.25000	0.23770	0.28861	0.27695	0.40000	0.39016	0.70287
LOF	99	0.25000	0.23770	0.28563	0.27392	0.40000	0.39016	0.76742
SimplifiedLOF	1	0.25000	0.23770	0.29034	0.27871	0.40000	0.39016	0.70031
SimplifiedLOF	97	0.25000	0.23770	0.28264	0.27088	0.40000	0.39016	0.75000
LoOP	1	0.25000	0.23770	0.29034	0.27871	0.40000	0.39016	0.70031
LoOP	97	0.25000	0.23770	0.28253	0.27077	0.40000	0.39016	0.75000
LDOF	2	0.25000	0.23770	0.26418	0.25211	0.40000	0.39016	0.51537
LDOF	37	0.25000	0.23770	0.28437	0.27264	0.40000	0.39016	0.75512
ODIN	71	0.25000	0.23770	0.09326	0.07839	0.25000	0.23770	0.76281
ODIN	80	0.25000	0.23770	0.11242	0.09787	0.28571	0.27400	0.75666
ODIN	87	0.25000	0.23770	0.11407	0.09954	0.28571	0.27400	0.76537
ODIN	88	0.25000	0.23770	0.11397	0.09944	0.28571	0.27400	0.76639
FastABOD	4	0.25000	0.23770	0.26989	0.25792	0.40000	0.39016	0.63012
FastABOD	15	0.25000	0.23770	0.29435	0.28279	0.40000	0.39016	0.77152
KDEOS	2	0.00000	-0.01639	0.01582	-0.00032	0.03226	0.01639	0.40779
KDEOS	10	0.00000	-0.01639	0.03770	0.02192	0.11111	0.09654	0.65164
KDEOS	97	0.00000	-0.01639	0.03042	0.01453	0.06897	0.05370	0.66803
LDF	9	0.00000	-0.01639	0.07676	0.06163	0.19048	0.17721	0.85656
LDF	33	0.25000	0.23770	0.08696	0.07200	0.25000	0.23770	0.72746
LDF	59	0.25000	0.23770	0.28789	0.27622	0.40000	0.39016	0.76332
LDF	76	0.25000	0.23770	0.34556	0.33483	0.40000	0.39016	0.70697
INFLO	1	0.25000	0.23770	0.28204	0.27027	0.40000	0.39016	0.70492
INFLO	97	0.25000	0.23770	0.28936	0.27771	0.40000	0.39016	0.79508
COF	1	0.25000	0.23770	0.29034	0.27871	0.40000	0.39016	0.70031
COF	3	0.25000	0.23770	0.28852	0.27685	0.40000	0.39016	0.76639

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