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Service — Embeddings & Semantic Search
Embeddings turn documents, tickets and product data into vectors that capture meaning, not just keywords. We build semantic search, hybrid retrieval and RAG pipelines on top of them, so your team and your customers find the right answer even when they use different words.
What we build
Semantic & hybrid search
Search across your documents, knowledge base or product catalogue that combines vector similarity with classic keyword ranking (BM25), so exact terms and meaning both count.
RAG pipelines
Retrieval-Augmented Generation on your own content: chunking, embedding, retrieval and reranking, with answers that cite their sources.
Vector database setup
Selection, schema and operation of pgvector, Qdrant or a managed alternative, including metadata filters, access rights and EU hosting.
Retrieval evaluation
Test sets of real questions, metrics such as recall@k and MRR, and regression tests, so changes to models or chunking are measured instead of guessed.
Stack
Relevance you can measure
Search quality is not a feeling. We keep an evaluation set of real queries and track whether the right passage appears in the top results. Model upgrades, new chunking strategies or filters are only rolled out when they improve that score.
How we work
[Build]
[01]
Questions & content auditWe collect real search questions and review the sources: formats, quality, duplicates and permissions.
[02]
Baseline & evaluation setA labelled test set and a simple baseline define what “better” means before we optimise.
[Deliver]
[03]
Pipeline & indexChunking, embedding, hybrid retrieval and reranking are built and compared against the baseline.
[04]
Operate & improveMonitoring, re-indexing and feedback loops keep results relevant as your content grows.
Further reading
RAG, access rights and the cost of an internal assistant.
Article: chunking, retrieval and evaluation from real projects.
Article: when a knowledge graph is worth adding to vector search.
Self-hosted LLMs on your infrastructure or in the EU.
FAQ
An embedding is a list of numbers (a vector) that represents the meaning of a text, image or record. Texts with similar meaning end up close to each other, which lets software find relevant content even when the wording differs.
Keyword search matches the exact words in a query. Semantic search compares meaning via embeddings. In practice, hybrid search that combines both usually gives the most reliable results, especially for product names, codes and technical terms.
Not always. For many projects, pgvector inside an existing PostgreSQL database is enough. A dedicated engine such as Qdrant becomes relevant with very large indexes, demanding filter requirements or high query volumes.
Yes, with a suitable multilingual embedding model. We test candidate models on your own German and English documents before choosing one, because quality differs noticeably between languages and domains.
RAG uses embedding-based retrieval to find relevant passages and then lets a language model answer based on them. Good retrieval is the foundation: if the right passage is not found, the answer cannot be grounded in it.
Yes. Permissions are stored as metadata and applied as filters during retrieval, so a user only receives results from documents they are allowed to see.
Bring a few real questions your team or customers ask. We show you where semantic search would help and how we would measure it.
Get in Touch
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