MUHAMMAD ISMAIL; AZEEM AKRAM. WHEN DOES GRAPH-STRUCTURED MEMORY HELP MULTI-SESSION LLM AGENTS? AN EMPIRICAL STUDY OF HYGRAM, A HYBRID GRAPH–VECTOR MEMORY ARCHITECTURE. Spectrum of Engineering Sciences, [S. l.], v. 4, n. 6, p. 2901–2914, 2026. Disponível em: https://www.thesesjournal.com/index.php/1/article/view/3354. Acesso em: 27 jun. 2026.