SPICA: Scalable and Personalized Conversational Agent Framework for AAC Users. - Sayantan Pal; Nikhil Murali; Atharva Vikas Jadhav; Jenna Bizovi; Antara Satchidanand; Manohar Golleru; Shalini Agarwal; Todd Hutchinson; Jeff Higginbotham; Rohini K. Srihari (IUI, 2026)