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Paper · 2006.04771 · 2020

Copy that! Editing Sequences by Copying Spans

arXiv · PDF · Open in the Atlas

Code that ran

We lifted 3 functions out of this paper's own repositories and ran 3 of them in a sandbox. "Ran" means the function executed on a synthesized input and returned a value. It is not a reproduction of the paper's results.

RepositoryRoleRan
microsoft/aaai21-copy-that canonical 3 of 3
FunctionStatusWhere it lives
compute_bleu Ran microsoft/aaai21-copy-that/model/testencdec.py
code served (permissive licence) · get_code("912f05720e2aef3a")
get_token_types Ran microsoft/aaai21-copy-that/model/testencdec.py
code served (permissive licence) · get_code("0bde2258f9638e6c")
is_num_literal Ran microsoft/aaai21-copy-that/model/testencdec.py
code served (permissive licence) · get_code("b05b10e0e86b1bcb")

Repositories linked to this paper

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Abstract

Neural sequence-to-sequence models are finding increasing use in editing of documents, for example in correcting a text document or repairing source code. In this paper, we argue that common seq2seq models (with a facility to copy single tokens) are not a natural fit for such tasks, as they have to explicitly copy each unchanged token. We present an extension of seq2seq models capable of copying entire spans of the input to the output in one step, greatly reducing the number of decisions required during inference. This extension means that there are now many ways of generating the same output, which we handle by deriving a new objective for training and a variation of beam search for inference that explicitly handles this problem. In our experiments on a range of editing tasks of natural language and source code, we show that our new model consistently outperforms simpler baselines.

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