We find that it shows a greater resemblance between A and B in the second case, compared to the first. Indeed, if the percentage of agreement is the same, the percentage of agreement that would occur „by chance“ is much higher in the first case (0.54 vs. 0.46). Multiply z.B 0.5 per 100 to get a total agreement of 50 percent. If you want to calculate z.B. the match percentage between the numbers five and three, take five minus three to get the value of two for the meter. Note that Cohen Kappa`s agreements are only concluded between two advisors. For a similar level of match (Fleiss` kappa) used if there are more than two spleens, see Fleiss (1971). The Fleiss kappa is, however, a multi-rated generalization of Scott Pi`s statistic, not Cohen`s kappa.
Kappa is also used to compare performance in machine learning, but the steering version, known as Informedness or Youdens J-Statistik, is described as the best for supervised learning.  The dissent rate is 14/16 or 0.875. The disagreement is due to the quantity, because the assignment is optimal. Kappa is 0.01. where in is the relative correspondence observed between advisors (identical to accuracy), and pe is the hypothetical probability of a random agreement, the observed data being used to calculate the probabilities of each observer who sees each category at random. If the advisors are in complete agreement, it`s the option “ 1″ „textstyle“ „kappa – 1.“ If there is no agreement between advisors who are not expected at random (as indicated by pe), the „textstyle“ option is given by the name „. The statistics may be negative, which implies that there is no effective agreement between the two advisers or that the agreement is worse than by chance. Cohens coefficient Kappa () is a statistic used to measure reliability between advisors (and also the reliability of inter-raters) for qualitative (categorical) elements.  It is generally accepted that this is a more robust indicator than a simple percentage of the agreement calculation, since the possibility of a random agreement is taken into account. There are controversies around Cohens Kappa because of the difficulty of interpreting the indications of the agreement. Some researchers have suggested that it is easier, conceptually, to assess differences of opinion between objects.  For more details, see Restrictions.