CompaRNA - on-line benchmarks of RNA structure prediction methods

FAQ

Metric	Pknots		PPfold(seed)
MCC	0.532	>	0.102
Average MCC ± 95% Confidence Intervals	0.592 ± 0.187	>	0.050 ± 0.095
Sensitivity	0.462	>	0.020
Positive Predictive Value	0.620	>	0.538
Total TP	165	>	7
Total TN	42642	<	42895
Total FP	116	>	25
Total FP CONTRA	8	>	0
Total FP INCONS	93	>	6
Total FP COMP	15	<	19
Total FN	192	<	350
P-value	6.08519761914e-09

Comparison of performance of Pknots and PPfold(seed). Positive Predictive Value (PPV) is plotted against sensitivity. Each dot represents a single test of each method. See tables below for raw data (individual counts for Pknots and PPfold(seed)).
Average Matthews Correlation Coefficients (MCC) with 95% confidence intervals (CIs) were plotted for different RNA families, for which at least 3 members were present in the benchmarking dataset. 'n' denotes the number of MCCs used to calculate the average and CI. See tables below for raw data (individual counts for Pknots and PPfold(seed)).
Comparison of average Matthews Correlation Coefficients (MCCs) for Pknots and PPfold(seed). The whiskers correspond to 95% confidence intervals (CIs). 'n' denotes the number of MCCs used to calculate average MCCs and CIs. See tables below for raw data (individual counts for Pknots and PPfold(seed)).

Total Scores
MCC	0.532
Average MCC ± 95% Confidence Intervals	0.592 ± 0.187
Sensitivity	0.462
Positive Predictive Value	0.620
Nr of predictions	11

RNA Chain	Rfam family	MCC	SENS	PPV	TP	TN	FP	FP CONTRA	FP INCONS	FP COMP	FN
2LC8_A	GP_knot1 links to Rfam database...	0.79	0.75	0.83	15	1522	3	1	2	0	5
3AMU_B	tRNA links to Rfam database...	0.86	0.74	1.00	20	2983	2	0	0	2	7
3J16_L	tRNA links to Rfam database...	0.34	0.30	0.41	9	2753	13	0	13	0	21
3RKF_A	Purine links to Rfam database...	0.77	0.62	0.95	21	2189	1	0	1	0	13
3SD1_A	THF links to Rfam database...	0.65	0.52	0.81	22	3889	5	0	5	0	20
3UZL_B	tRNA links to Rfam database...	0.75	0.59	0.96	22	3547	1	0	1	0	15
4A1C_3	5S_rRNA links to Rfam database...	0.25	0.22	0.29	12	7099	29	1	28	0	42
4A1C_2	5_8S_rRNA links to Rfam database...	0.24	0.24	0.25	8	11749	36	3	21	12	25
4AOB_A	SAM links to Rfam database...	0.17	0.14	0.21	6	4343	23	1	21	1	36
4ENB_A	crcB links to Rfam database...	0.83	0.79	0.88	15	1258	2	1	1	0	4
4ENC_A	crcB links to Rfam database...	0.86	0.79	0.94	15	1310	1	1	0	0	4

Total Scores
MCC	0.102
Average MCC ± 95% Confidence Intervals	0.050 ± 0.095
Sensitivity	0.020
Positive Predictive Value	0.538
Nr of predictions	11

RNA Chain	Rfam family	MCC	SENS	PPV	TP	TN	FP	FP CONTRA	FP INCONS	FP COMP	FN
2LC8_A	GP_knot1 links to Rfam database...	0.47	0.30	0.75	6	1532	2	0	2	0	14
3AMU_B	tRNA links to Rfam database...	0.00	0.00	0.00	0	3003	0	0	0	0	27
3J16_L	tRNA links to Rfam database...	0.00	0.00	0.00	0	2775	0	0	0	0	30
3RKF_A	Purine links to Rfam database...	0.00	0.00	0.00	0	2211	0	0	0	0	34
3SD1_A	THF links to Rfam database...	0.00	0.00	0.00	0	3916	0	0	0	0	42
3UZL_B	tRNA links to Rfam database...	0.00	0.00	0.00	0	3570	0	0	0	0	37
4A1C_3	5S_rRNA links to Rfam database...	0.00	0.00	0.00	0	7140	0	0	0	0	54
4A1C_2	5_8S_rRNA links to Rfam database...	0.08	0.03	0.20	1	11776	23	0	4	19	32
4AOB_A	SAM links to Rfam database...	0.00	0.00	0.00	0	4371	0	0	0	0	42
4ENB_A	crcB links to Rfam database...	0.00	0.00	0.00	0	1275	0	0	0	0	19
4ENC_A	crcB links to Rfam database...	0.00	0.00	0.00	0	1326	0	0	0	0	19

Matthews Correlation Coeffient, Sensitivity and Positive Predictive Value have been calculated based on the paper by Gardener & Giegerich, 2004.