Arrhythmia (2% of outliers version#05)

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 (30.6 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	0.52541	0.51763	0.66667	0.66120	0.85553
KNN	3	0.50000	0.49180	0.52906	0.52134	0.66667	0.66120	0.86680
KNNW	1	0.50000	0.49180	0.52885	0.52112	0.66667	0.66120	0.87090
LOF	1	0.50000	0.49180	0.54405	0.53657	0.66667	0.66120	0.86270
LOF	4	0.50000	0.49180	0.53766	0.53008	0.66667	0.66120	0.88422
SimplifiedLOF	1	0.50000	0.49180	0.34979	0.33913	0.57143	0.56440	0.94365
SimplifiedLOF	3	0.50000	0.49180	0.55329	0.54597	0.66667	0.66120	0.87807
SimplifiedLOF	4	0.50000	0.49180	0.55329	0.54597	0.66667	0.66120	0.90061
LoOP	1	0.50000	0.49180	0.34979	0.33913	0.57143	0.56440	0.94365
LoOP	3	0.50000	0.49180	0.55893	0.55170	0.66667	0.66120	0.87705
LDOF	2	0.25000	0.23770	0.29226	0.28066	0.44444	0.43534	0.97439
LDOF	10	0.50000	0.49180	0.47909	0.47055	0.57143	0.56440	0.87602
LDOF	11	0.50000	0.49180	0.55205	0.54471	0.66667	0.66120	0.86066
ODIN	49	0.15385	0.13997	0.10401	0.08933	0.23529	0.22276	0.86680
ODIN	80	0.50000	0.49180	0.26864	0.25665	0.50000	0.49180	0.81148
ODIN	100	0.50000	0.49180	0.35222	0.34160	0.57143	0.56440	0.80225
FastABOD	6	0.50000	0.49180	0.40224	0.39244	0.50000	0.49180	0.87398
FastABOD	9	0.50000	0.49180	0.53040	0.52270	0.66667	0.66120	0.88934
KDEOS	8	0.25000	0.23770	0.10502	0.09035	0.25000	0.23770	0.80328
KDEOS	15	0.00000	-0.01639	0.09864	0.08386	0.20000	0.18689	0.87910
KDEOS	24	0.25000	0.23770	0.28405	0.27231	0.40000	0.39016	0.80430
KDEOS	26	0.25000	0.23770	0.28477	0.27305	0.40000	0.39016	0.80738
LDF	70	0.25000	0.23770	0.39233	0.38237	0.40000	0.39016	0.86783
LDF	74	0.50000	0.49180	0.42642	0.41701	0.50000	0.49180	0.84734
LDF	91	0.50000	0.49180	0.53139	0.52370	0.57143	0.56440	0.86373
LDF	99	0.50000	0.49180	0.52407	0.51627	0.66667	0.66120	0.82275
INFLO	1	0.50000	0.49180	0.53408	0.52645	0.66667	0.66120	0.83811
INFLO	2	0.50000	0.49180	0.57503	0.56806	0.66667	0.66120	0.84631
INFLO	4	0.50000	0.49180	0.56124	0.55404	0.66667	0.66120	0.90061
COF	1	0.50000	0.49180	0.34979	0.33913	0.57143	0.56440	0.94365
COF	3	0.50000	0.49180	0.52376	0.51595	0.66667	0.66120	0.81660

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