Ddhuet

/**
 * Claude Index Normalization Function
 *
 * This module provides functions to normalize rating data, particularly useful for:
 * - Teacher/evaluator ratings that suffer from central tendency bias
 * - Ratings where evaluators use different parts of the scale
 * - Compressed or shifted rating distributions
 *
 * The core function blends original ratings with normalized scores based on
 * a configurable alpha parameter, with automatic adjustment for compression.