FTA-Mem: Fact-Time-Affect Anchored Memory for Low-Density Long-Term Dialogue
FTA-Mem introduces a structured memory system for long-term emotional support conversations that struggle with sparse information. It uses Fact-Time-Affect Memory Units (FTA Units) to jointly encode facts, time, and emotion. By segmenting dialogue into situation fragments and fusing partial units across these segments, the system improves question answering by effectively balancing evidence preservation with computational cost.