11. The method of claim 7 , wherein probabilities of individual potential matching symbols that are included in relatively more occurrences in the dataset are weighted higher than probabilities of other individual potential matching symbols that are included in relatively fewer occurrences in the dataset.
11. The method of claim 7 , wherein probabilities of individual potential matching symbols that are included in relatively more occurrences in the dataset are weighted higher than probabilities of other individual potential matching symbols that are included in relatively fewer occurrences in the dataset. 12. The method according to claim 11 , further comprising: updating the relative probabilities after further user entries are received.