Speech Acts (IMAGE) University of Southern California Caption The ISI study characterized online posts according a schema of speech acts. While some speech-act characterization was done by hand in this study to test the results, the ISI group has already developed effective software to accomplish the task automatically. Credit USC Information Sciences Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.