Papers › Handling Rare Items in Data-to-Text Generation

Handling Rare Items in Data-to-Text Generation

1 Nov 2018WS 2018 11archive 2025-07-28

Anastasia Shimorina, Claire Gardent

Neural approaches to data-to-text generation generally handle rare input items using either delexicalisation or a copy mechanism. We investigate the relative impact of these two methods on two datasets (E2E and WebNLG) and using two evaluation settings. We show (i) that rare items strongly impact performance; (ii) that combining delexicalisation and copying yields the strongest improvement; (iii) that copying underperforms for rare and unseen items and (iv) that the impact of these two mechanisms greatly varies depending on how the dataset is constructed and on how it is split into train, dev and test.

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