Method and apparatus for presenting candidate character string, and method and apparatus for training discriminative model

A mobile terminal for presenting a candidate character string, comprising:

• at least one processor;
• and
• a storage device,
• wherein the storage device stores an instruction executable by the at least one processor, and the instruction, when executed by the at least one processor, causes the processor to perform operations comprising:
• acquiring a character string of alphabetic words inputted by a user;
• determining a character transition weight of the character string, the character transition weight being used to characterize a transition probability of a character;
• generating a sort weight corresponding to the character string based on a pre-acquired basic weight matching the character string and the character transition weight;
• and
• selecting, according to an order indicated by the sort weight, at least two candidate character strings matching the character string from a pre-acquired candidate character string set for presentation, thereby improving the accuracy of the candidate character strings, and presenting the at least two candidate character strings at the mobile terminal,
• wherein generating the sort weight comprises
• multiplying the pre-acquired basic weight and the character transition weight by pre-acquired coefficients respectively to generate a first result, and
• performing post-processing based on the first result to generate a second result as the sort weight corresponding to the character string.