PA Sequence labelling & post editing for NER in tweets.
Channel: Leon Derczynski
Date: 2014-04-29

Passive-Aggressive Sequence Labeling with Discriminative Post-Editing for Recognising Person Entities in Tweets

Talk given at EACL 2014; introduction by chair Phil Blunsom

Recognising entities in social media text is difficult. NER on newswire text is conventionally cast as a sequence labeling problem. This makes implicit assumptions regarding its textual structure. Social media text is rich in disfluency and often has poor or noisy structure, and intuitively does not always satisfy these assumptions. We explore noise-tolerant methods for sequence labeling and apply discriminative post-editing to exceed state-of-the-art performance for person recognition in tweets, reaching an F1 of 84%.

Full paper: http://derczynski.com/sheffield/papers/person_tweets.pdf