Treebanks gone bad

Treebanks Gone Bad: Generating a Treebank of Ungrammatical English

This paper describes how a treebank of ungrammatical sentences can be created from a treebank of well-formed sentences. The treebank creation procedure involves the automatic introduction of frequently occurring grammatical errors into the sentences in an existing treebank, and the minimal transformation of the analyses in the treebank so that they describe the newly created ill-formed sentence...

Treebanks Gone Bad Parser Evaluation and Retraining using a Treebank of Ungrammatical Sentences

This article describes how a treebank of ungrammatical sentences can be created from a treebank of well-formed sentences. The treebank creation procedure involves the automatic introduction of frequently occurring grammatical errors into the sentences in an existing treebank, and the minimal transformation of the original analyses in the treebank so that they describe the newly created ill-form...

Old cells gone bad

he rising incidence of senescent cells during aging may promote cancer development, according to Judith Campisi (Lawrence Berkeley National Laboratory, Berkeley, CA) and colleagues. They propose that evolution may have selected a useful function for cellular senescence early in life—the switching-off of cells that are prone to becoming cancerous— without any consideration of how these cells mig...

Has Goodwill Accounting Gone Bad?

Screening sinus CT: a good idea gone bad?

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