A Word is Worth A Thousand Dollars: Adversarial Attack on Tweets Fools Stock Prediction

Anonymous

Paper Link: https://openreview.net/forum?id=l_Wlug2cgDi

Paper Type: Short paper (up to four pages of content + unlimited references and appendices)

Abstract: More and more investors and machine learning models rely on social media (e.g., Twitter and Reddit) to gather information and predict movements stock prices. Although text-based models are known to be vulnerable to adversarial attacks, whether stock prediction models have similar vulnerability given necessary constraints is underexplored. In this paper, we experiment with a variety of adversarial attack configurations to fool three stock prediction victim models. We address the task of adversarial generation by solving combinatorial optimization problems with semantics and budget constraints. Our results show that the proposed attack method can achieve consistent success rates and cause significant monetary loss in trading simulation by simply concatenating a perturbed but semantically similar tweet.

Presentation Mode: This paper will be presented virtually

Virtual Presentation Timezone: UTC-7

Copyright Consent Signature (type Name Or NA If Not Transferrable): yong xie

Copyright Consent Name And Address: Yong Xie, University of Illinois Urbana Champaign