Searchplex Blog
Writing on retrieval engineering, production search systems, migration decisions, and what we are learning in the field.
Types of Search Queries: A Practical Map
A query has several characteristics. Which ones matter depends on the engineering decision.
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The Search Evaluation Ladder
LLM judges can score search results, but they cannot tell whether a failure began in indexing, retrieval, or ranking. Test each layer in the right order.
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What Is Your LLM Judge Actually Measuring?
LLM judges generate relevance labels for search evaluation, but the evaluation setup decides whether the retriever comparison holds.
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When Reranking Becomes a System Boundary
A reranker only sees what retrieval allows to survive. That changes evaluation, system boundaries, and ownership of relevance.
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When Search Becomes Expensive to Improve
Why mature search systems keep working while each meaningful improvement takes more coordination, validation, serving cost, and risk.
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When a Search Stack Starts to Strain
How to recognize when a working search stack is entering a straining regime, and what recurring cracks usually mean.
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What Makes Search Hard
Search gets hard when retrieval, filtering, ranking, and business rules must behave like one coherent system under real production pressure.
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How AI Can Turn Your Publishing Archives Into a New Source of Engagement
Surface hidden gems from your archive, automatically, right before you hit publish.
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Introducing Find & Mind: The Search & AI Meetup for Netherlands
Launching Find & Mind, a new Amsterdam-based community meetup for Search, IR, RAG, and Applied AI.
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Berlin Buzzwords 2025: What the Conversations Revealed
Search infrastructure, AI, and what changed in real conversations at Berlin Buzzwords 2025.
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Searchplex Becomes Official Partner of Vespa.ai
Searchplex announces its official Vespa.ai partnership and what that means for search, retrieval, and implementation work.
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