NLIP reading group: Semi-Supervised Recursive Autoencoders for Predicting Sentiment Distributions

Add to your list(s) Download to your calendar using vCal

• Diarmuid Ó Séaghdha (University of Cambridge)
• Thursday 10 November 2011, 12:00-13:00
• GS15, Computer Laboratory.

If you have a question about this talk, please contact Jimme Jardine.

Diarmuid will be covering the following:

Richard Socher; Jeffrey Pennington; Eric H. Huang; Andrew Y. Ng; Christopher D. Manning Semi-Supervised Recursive Autoencoders for Predicting Sentiment Distributions

http://aclweb.org/anthology-new/D/D11/D11-1014.pdf

We introduce a novel machine learning framework based on recursive autoencoders for sentence-level prediction of sentiment label distributions. Our method learns vector space representations for multi-word phrases. In sentiment prediction tasks these representations outperform other state-of-the-art approaches on commonly used datasets, such as movie reviews, without using any pre-defined sentiment lexica or polarity shifting rules. We also evaluate the model’s ability to predict sentiment distributions on a new dataset based on confessions from the experience project. The dataset consists of personal user stories annotated with multiple labels which, when aggregated, form a multinomial distribution that captures emotional reactions. Our algorithm can more accurately predict distributions over such labels compared to several competitive baselines.

This talk is part of the Natural Language Processing Reading Group series.

This talk is included in these lists:

• Cambridge Forum of Science and Humanities
• Cambridge Language Sciences
• Cambridge talks
• Chris Davis' list
• GS15, Computer Laboratory
• Guy Emerson's list
• Natural Language Processing Reading Group

Note that ex-directory lists are not shown.