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Human Evaluation and Rank Correlation in NLP

Human evaluation collects ratings from people to judge machine-generated text on qualities like surprise or quality, and rank-correlation statistics such as Spearman's rho measure how well an automatic metric agrees with those human rankings. It is the standard way to validate that a proposed metric tracks human judgment.

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Spearman Rank Correlation for Evaluating Semantic Similarity in Natural Language Processing

Spearman rank correlation is a statistical measure utilized in natural language processing to quantify agreement between two ranked lists rather than comparing raw values or absolute similarity score…