Search Results for author: Arun Chaganty

Found 3 papers, 1 papers with code

The price of debiasing automatic metrics in natural language evalaution

no code implementations ACL 2018 Arun Chaganty, Stephen Mussmann, Percy Liang

For evaluating generation systems, automatic metrics such as BLEU cost nothing to run but have been shown to correlate poorly with human judgment, leading to systematic bias against certain model improvements.

Abstractive Text Summarization Image Captioning +1

Importance sampling for unbiased on-demand evaluation of knowledge base population

no code implementations EMNLP 2017 Arun Chaganty, Ashwin Paranjape, Percy Liang, Christopher D. Manning

Our first contribution is a new importance-sampling based evaluation which corrects for this bias by annotating a new system{'}s predictions on-demand via crowdsourcing.

Information Retrieval Knowledge Base Population +1

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