📄 Lm Eval Harness¶

templates.qa.multiple_choice.with_context.lm_eval_harness

type: MultipleChoiceTemplate
input_format: "Context: {context}\nQuestion: {question}\nChoices:\n{choices}\nAnswer:"
target_field: answer
choices_separator: "\n"
postprocessors: 
  - processors.first_character
[source]

Explanation about MultipleChoiceTemplate¶

Formats the input that specifies a multiple-choice question, with a list of possible answers to choose from, and identifies the correct answer.

Args:

target_prefix (str): Optional prefix that can be added before the target label in
generated prompts or outputs.

choices_field (str): The key under which the multiple choices are stored in the
input and reference dictionaries.

target_field (str): The key under which the correct choice is stored in the
reference dictionary (can be integer index or textual label).

choices_separator (str): A string used to join formatted choices (e.g. “, “). source_choice_format (str): A Python format string used for displaying each choice

in the input fields (e.g. “{choice_numeral}. {choice_text}”).

target_choice_format (str): A Python format string used for displaying each choice
in the target or final output (e.g. “{choice_numeral}”).

enumerator (str): Determines how choice numerals are enumerated. Possible values
include “capitals”, “lowercase”, “numbers”, or “roman”.

shuffle_choices (bool): If True, shuffle the choices. The shuffling seed can be
set with shuffle_choices_seed.

shuffle_choices_seed (int, optional): If provided, the choices are shuffled with
this fixed integer seed for reproducibility.

sort_choices_by_length (bool): If True, sorts choices by their length (ascending). sort_choices_alphabetically (bool): If True, sorts choices in alphabetical order. reverse_choices (bool): If True, reverses the order of the choices after any

sorting has been applied. Defaults to False to preserve backward compatibility.

References: processors.first_character