Knowledge Graphs as Agentic Memory with Daniel Chalef
Mar 25, 2025
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Daniel Chalef, Founder of Zep, discusses the innovative use of temporal Knowledge Graphs to tackle AI's challenge with contextual memory. He emphasizes how these graphs can help agents maintain long-term information and improve decision-making. Joined by Kevin Ball, the conversation highlights Zep’s advanced graph search capabilities, outperforming older systems. They delve into the potential of ambient AI agents and the philosophical implications of agentic memory, offering a glimpse into the future of intelligent systems.
Current AI models struggle with contextual memory retention, limiting their effectiveness in simulating human-like cognitive functions over time.
Zep's innovative approach using temporal knowledge graphs aims to enhance AI agents' long-term memory, enabling better decision-making in dynamic environments.
Deep dives
Challenges of Contextual Memory in AI
Current AI models face significant challenges in retaining and recalling relevant information over time, which limits their ability to simulate human-like memory. Unlike humans, who build long-term semantic relationships effortlessly, AI systems often rely on fixed context windows, resulting in the loss of important past interactions. This becomes particularly problematic in applications requiring extensive context for accurate decision-making. The development of contextual memory is essential for creating more autonomous AI agents that can act effectively in dynamic environments.
Innovation with Temporal Knowledge Graphs
ZEP, a startup founded in 2023, aims to address the contextual memory challenge by implementing a memory layer for AI agents through temporal knowledge graphs. These graphs allow AI to represent complex relationships over time using a structured approach, which enhances the retention of contextual information. The use of knowledge graphs can enable AI to perform better retrieval and reasoning tasks by connecting various entities in a dynamic way. This innovative approach supports the goal of creating more agentic applications that operate sensibly in complex real-world scenarios.
Multi-Dimensional Memory Types
Memory in AI can be categorized into short-term and long-term memory, similar to human cognition. Short-term memory is necessary for current interactions, allowing agents to comprehend ongoing conversations, while long-term memory involves storing procedural and semantic memories for future reference. The latter type poses challenges for AI as it must draw connections between diverse data points to form cohesive knowledge. The implementation of expansive memory mechanisms, enabling both episodic and semantic memory, is vital for improving the agent's ability to recall and utilize relevant information accurately.
The Future of Ambient AI Agents
The concept of ambient AI agents represents an exciting direction in the field of artificial intelligence, where agents actively monitor environmental changes and respond without direct user prompts. These agents can enhance daily life by managing tasks such as home automation or providing real-time assistance based on situational awareness. The development of these agents raises significant questions about the implications of AI acting independently and the potential risks associated with such capabilities. As interest in ambient intelligence grows across various sectors, so too does the need for addressing safety, compliance, and ethical considerations.
Contextual memory in AI is a major challenge because current models struggle to retain and recall relevant information over time. While humans can build long-term semantic relationships, AI systems often rely on fixed context windows, leading to loss of important past interactions.
Zep is a startup that’s developing a memory layer for AI agents using temporal Knowledge Graphs, enabling agents to retain long-term contextual information. It was founded in 2023 and was part of the Y Combinator batch of Winter 2024.
Daniel Chalef is the Founder of Zep. He joins the show with Kevin Ball to talk about the challenge of contextual memory in AI, temporal knowledge graphs, ambient AI agents, and more.
Full Disclosure: This episode is sponsored by Zep.
Kevin Ball or KBall, is the vice president of engineering at Mento and an independent coach for engineers and engineering leaders. He co-founded and served as CTO for two companies, founded the San Diego JavaScript meetup, and organizes the AI inaction discussion group through Latent Space.