Essential Techniques for Production Vector Search Systems, Part 5: Reranking

After implementing vector search systems at multiple companies, I wanted to document efficient techniques that can be very helpful for successful production deployments. I want to present these techniques by showcasing when to apply each one, how they complement each other, and the trade-offs they introduce. This will be a multi-part series that introduces all of the techniques one by one in each article. I have also included code snippets to quickly test each technique.