Prepositional Phrase Attachment through a Backed-Off Model
<|reference_start|>Prepositional Phrase Attachment through a Backed-Off Model: Recent work has considered corpus-based or statistical approaches to the problem of prepositional phrase attachment ambiguity. Typically, ambiguous verb phrases of the form {v np1 p np2} are resolved through a model which considers values of the four head words (v, n1, p and n2). This paper shows that the problem is analogous to n-gram language models in speech recognition, and that one of the most common methods for language modeling, the backed-off estimate, is applicable. Results on Wall Street Journal data of 84.5% accuracy are obtained using this method. A surprising result is the importance of low-count events - ignoring events which occur less than 5 times in training data reduces performance to 81.6%.<|reference_end|>
@article{collins1995prepositional,
    title={Prepositional Phrase Attachment through a Backed-Off Model},
    author={Michael Collins, James Brooks (University of Pennsylvania)},
    journal={arXiv preprint arXiv:cmp-lg/9506021},
    year={1995},
    archivePrefix={arXiv},
    eprint={cmp-lg/9506021},
    primaryClass={cmp-lg cs.CL}
}