Liuy write up for Jansche and Abney

This is a review of Jansche_2002_information_extraction_from_voicemail_transcripts by user:liuy.

The paper introduces a two-layer (extraction grammar and classifier) method that outperforms that state-of-the-art methods for extracting information from voice mail. It shows that, to locate caller names and important phrases in a voice message, positional cues should be taken into account. Some empirical study in the paper shows positional feartures (plus lexical features) can be used to get desirable results in extracting caller information.

I like the two-layer design and the empirical evidence on the combined performance However, in real life, to identify what is calling, the system will need multiple sources of information, thus the combination of these sources is more interesting.