Intro to vector embeddings

Vector embeddings are numerical representations of data, such as text, images, or events, that capture their meaning in a format that computers can efficiently compare and analyze.

In practice, an embedding is a list of floating-point numbers (a vector) that encodes the semantic relationships between inputs. Similar inputs produce similar vectors.

For example:

Input Embedding (simplified)
"error: failed to connect" [0.11, -0.42, 0.87, …]
"connection refused" [0.10, -0.39, 0.85, …]
"user logged in" [-0.72, 0.14, -0.33, …]

The first two messages have similar vectors because they describe related concepts — both are connection errors — while the third one is far apart.

Why embeddings matter

Embeddings allow you to perform semantic search, clustering, anomaly detection, and AI-powered analytics on your data without needing to write explicit rules or string matches.

In Better Stack Warehouse, you can use embeddings to:

  • Search events by meaning, not just keywords
  • Implement Retrieval Augumented Generation (RAG) systems with just two HTTP requests
  • Detect outliers or unusual patterns in high-volume data
  • Power AI-driven summaries and recommendations