Summary of the paper

Title On the Importance of Text Analysis for Stock Price Prediction
Authors Heeyoung Lee, Mihai Surdeanu, Bill Maccartney and Dan Jurafsky
Abstract We investigate the importance of text analysis for stock price prediction. In particular, we introduce a system that forecasts companies’ stock price changes (UP, DOWN, STAY) in response to financial events reported in 8-K documents. Our results indicate that using text boosts prediction accuracy over 10% (relative) over a strong baseline that incorporates many financially-rooted features. This impact is most important in the short term (i.e., the next day after the financial event) but persists for up to five days.
Topics Opinion Mining / Sentiment Analysis
Full paper On the Importance of Text Analysis for Stock Price Prediction
Bibtex @InProceedings{LEE14.1065,
  author = {Heeyoung Lee and Mihai Surdeanu and Bill Maccartney and Dan Jurafsky},
  title = {On the Importance of Text Analysis for Stock Price Prediction},
  booktitle = {Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)},
  year = {2014},
  month = {may},
  date = {26-31},
  address = {Reykjavik, Iceland},
  editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Thierry Declerck and Hrafn Loftsson and Bente Maegaard and Joseph Mariani and Asuncion Moreno and Jan Odijk and Stelios Piperidis},
  publisher = {European Language Resources Association (ELRA)},
  isbn = {978-2-9517408-8-4},
  language = {english}
 }
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