Sequence Alignment with Dynamic Divisor Generation for Keystroke Dynamics Based User Authentication

Table 3

The result of AUC for six algorithms in Dataset number 2. The highest value of AUC result is in bold.

Subject	Algorithm
	SADD	Sequence alignment	Median vector proximity	Mahalanobis	Manhattan	Euclidean
1	0.88624	0.90732	0.87691	0.84844	0.82584	0.79356
2	0.95560	0.95577	0.93895	0.88018	0.86560	0.85034
3	0.98590	0.97993	0.96152	0.96926	0.90524	0.85016
4	0.99222	0.99102	0.99439	0.97216	0.96684	0.93098
5	0.94865	0.96462	0.94441	0.96218	0.93528	0.95348
6	0.98901	0.99115	0.98706	0.97972	0.95880	0.93774
7	0.99928	0.99776	0.99636	0.98944	0.99494	0.98914
8	0.99156	0.98971	0.98889	0.96762	0.96574	0.96284
9	0.99926	0.99839	0.99928	0.97772	0.98964	0.95676
10	0.99645	0.99884	0.98651	0.96102	0.96532	0.94166
11	0.98800	0.98809	0.95766	0.93818	0.88172	0.85402
12	0.91010	0.87188	0.88252	0.91010	0.82332	0.81468
13	0.99851	0.99646	0.99836	0.99184	0.98646	0.97188
14	0.98852	0.98281	0.98131	0.92130	0.90544	0.88206
15	0.99350	0.99477	0.98994	0.97628	0.96714	0.93850
16	0.98241	0.97288	0.95340	0.93130	0.85616	0.84848
17	0.95874	0.96397	0.94673	0.94258	0.94676	0.93334
18	0.99080	0.98800	0.99653	0.98998	0.90300	0.68836
19	0.97484	0.97116	0.99244	0.99272	0.94462	0.87930
20	0.98398	0.98143	0.97688	0.95914	0.94462	0.91040
21	0.99048	0.98306	0.98878	0.97928	0.96214	0.94290
22	0.98967	0.98849	0.98830	0.96448	0.92518	0.86614
23	0.99664	0.98886	0.97813	0.98912	0.96066	0.91082
24	0.98587	0.98621	0.98557	0.96422	0.96584	0.93000
25	0.91843	0.90906	0.95942	0.91256	0.92510	0.86990
26	0.84544	0.85266	0.85673	0.84346	0.76024	0.73304
27	0.87100	0.93043	0.82663	0.79592	0.81164	0.83336
28	0.93937	0.93577	0.93986	0.93832	0.82262	0.6955
29	0.97335	0.98495	0.91598	0.89790	0.82654	0.77378
30	0.94988	0.94329	0.89873	0.93106	0.81544	0.78808
31	0.99886	0.99779	0.99926	0.99964	0.98600	0.96808
32	0.97698	0.98168	0.94639	0.94178	0.92584	0.88910
33	0.98258	0.97630	0.97367	0.95766	0.93922	0.90810
34	0.99577	0.99215	0.99290	0.94522	0.93410	0.90136
35	0.95729	0.92842	0.96261	0.87956	0.75252	0.61538
36	0.99026	0.98381	0.99333	0.93214	0.92598	0.87978
37	0.99893	0.99773	0.99888	0.96974	0.98948	0.96940
38	0.99652	0.99269	0.99730	0.99290	0.96702	0.90490
39	0.97834	0.97180	0.95770	0.97590	0.94078	0.90424
40	0.97330	0.96871	0.94501	0.93078	0.91412	0.91472
41	0.83326	0.88258	0.78742	0.80208	0.68962	0.74806
42	0.99272	0.99254	0.99048	0.97140	0.95918	0.93112
43	0.95977	0.94853	0.98591	0.93964	0.60102	0.52690
44	0.98470	0.97880	0.97269	0.95566	0.92728	0.89918
45	0.94854	0.95723	0.94442	0.94778	0.94986	0.95918
46	0.99973	0.99959	0.99874	0.99286	0.99284	0.98012
47	0.99938	0.99902	0.99711	0.99086	0.99500	0.97770
48	0.96373	0.96001	0.94336	0.95596	0.96554	0.96292
49	0.99758	0.99742	0.99736	0.99504	0.99928	0.99722
50	0.99167	0.98757	0.97627	0.94522	0.94132	0.93674
51	0.98904	0.98974	0.97148	0.95238	0.92646	0.93746
Total; Wins	49.48265; 23	49.47285; 14	49.02047; 10	48.25168; 2	46.53034; 1	44.94286; 1