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  1. Super Data Science: ML & AI Podcast with Jon Krohn
  2. 1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson
1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn · Aug 11, 2026

MongoDB's Pete Johnson reveals why only 1 in 5 firms see AI ROI, detailing effective RAG, vector search, and agentic memory strategies.

Matryoshka Embeddings from MongoDB Drastically Cut Iteration Time for Vector Dimension Tuning

Testing different vector dimensions usually requires costly re-embedding of the entire dataset. Matryoshka embeddings are ordered, allowing developers to test smaller dimensions by simply truncating a larger vector. This “Russian nesting doll” approach dramatically reduces developer friction and experimentation time.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

MongoDB's Shared Embedding Spaces Allow Free Local Development Against Production Vector Databases

Embeddings from different sizes of Voyage AI models are compatible. This lets teams embed production data with a large model while developers use a free, local “Nano” model for queries. This novel approach eliminates token costs during development and testing, improving developer experience.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

Mature AI Teams Measure Business Outcomes Like Shipping Speed, Not Vanity Metrics

Early AI adoption metrics focused on usage (e.g., tokens consumed), leading to wasteful “token maxing.” Successful teams quickly pivoted to measuring real business impact, such as the overall speed of the software delivery lifecycle, to gauge AI effectiveness and drive true ROI.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

Sophisticated Agentic Memory Caches LLM Responses to Reduce Costs and Ensure Consistency

Advanced agentic memory can act as a cache for LLM-generated answers. For similar queries, an agent can retrieve a cached response via vector search and validate it with a cheap evaluative LLM. This avoids expensive generative calls, combating “token maxing” and preventing inconsistent answers.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

Early AI ROI Comes From Employee-Facing Tools with Pre-Existing Success Metrics

The 1 in 5 companies succeeding with AI target internal workflows where performance is already measured. This allows them to clearly attribute metric improvements to AI and calculate ROI, while also lowering data security risks compared to customer-facing applications.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

Your RAG Pipeline's Success Hinges on a High-Quality, Non-Commoditized Embedding Model

Teams often default to convenient embedding models from their cloud provider, treating them as interchangeable. This is a critical mistake. The choice of embedding model directly impacts retrieval quality, with specialized models offering double-digit performance gains that can unlock new capabilities.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

NoSQL Databases Prioritize Time Over Storage, Reversing SQL's 1970s Design Philosophy

SQL's normalized structure optimized for expensive disk space in the 1970s, requiring multiple "joins" to retrieve data. NoSQL, designed for an era of cheap storage, denormalizes data to optimize for the new scarce resource: time. This results in faster, single-read queries.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

The "Field CTO" Title Signals Peer-Level Credibility for C-Suite Enterprise Sales

A Field CTO is more than a senior sales engineer; the title signifies decades of industry experience, granting them peer-level credibility when speaking with client CIOs and CTOs. This role is designed for strategic, architectural conversations rather than just technical product demos.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago

Jevons' Paradox Predicts AI Will Augment and Grow Jobs, Like ATMs Did for Bank Tellers

Automation doesn't always eliminate jobs. As with bank tellers after ATMs arrived, AI will handle redundant tasks, freeing humans for higher-value work like relationship building. This leads to job transformation and growth, not just obsolescence, for roles with potential for value-add.

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson thumbnail

1017: Vector Search, Agentic Memory and Effective RAG, with MongoDB’s Pete Johnson

Super Data Science: ML & AI Podcast with Jon Krohn·2 months ago