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... (0704-0188) Washington, DC 20503. (DD-MM-YYYY) collation, and usage for tactical updates, post-mission operational analysis, and watch turnover. The informal nature of chat communications allows the relay of far more information than the technical content of messages. This AFRL in-house project combined components of the methodology applied in a Syracuse University project for IARPA's AQUAINT program with additional research activities to analyze databases of military chat. The project proposed to conduct a study of how humans recognize connotative cues expressing uncertainty, perception of personal threat, and urgency; formulate linguistic and non-linguistic means for recognizing such cues; develop algorithms to automatically perform that recognition, and evaluate the prototype recognition algorithms. The project built a matrix of speech "cues" representative of uncertainty, perception of personal threat, and urgency, but also applied maximum entropy analysis and a combined rule-based/statistical algorithm. Recall, precision and F-score measures for each methodology were determined. 15. SUBJECT TERMS text chat, urgency, uncertainty, Maximum Entropy 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT UU 18. NUMBER OF PAGES 29 19a. NAME OF RESPONSIBLE PERSON PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE