M.S. Final Oral Exam: Ge Luo

Ge Luo
Wednesday, June 22, 2022 - 3:00pm
Event Type: 

Towards End-to-End Reference-Free Summarization Evaluation Via Negative Sampling

Evaluating machine-generated summaries without a human-written reference summary has been a need for a long time. In this paper, we present a proof-of-concept study to a summary evaluation approach without the presence of reference summaries. By negative sampling, massive data in existing summarization datasets are transformed for training by pairing documents with corrupted reference summaries. Two learning schemes are explored: weakly supervised learning with explicit number labels and preference learning with inexplicit labels. Extensive experiments on several datasets show that our approaches can produce scores highly correlated with human ratings.

Committee: Forrest Bao (major professor), Qi Li, and Wensheng Zhang

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