I have a multiclass classification problem where, in the test set, there is only one entry for each possible class. In my particular problem we want to guess the author of a text, and we have 20 different authors. The test set contains 20 texts, one of each author.
I have many texts of each authors in the training data. I can't change the content of the test set, it's these specific texts that I need to classify.
Does this kind of task has a name, so I can google previous work on it more easily ? I'm not talking about author identification specifically, but having 1 entry for each class.
Do you have any suggestion of algorithm that would work well for this task ? Maybe something that gives ranked results or a confidence value ?