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Table 5 The contingency tables for χ2 comparing PSI-BLAST with HIall and HIseq in the twilight zone. The numbers in brackets are the expected values.

From: Homology Induction: the use of machine learning to improve sequence similarity searches

  PSI-BLAST HIall  
True Positives 460 (512.68) 312 (259.32) 772
False Positives 574 (521.32) 211 (263.68) 785
  1034 523 1557
  PSI-BLAST HIseq  
True Positives 460 (490.21) 208 (177.79) 668
False Positives 574 (543.79) 167 (197.21) 741
  1034 375 1409