Profil picture of Clément Renault

Clément Renault

Co-Founder and Tech Lead @meilisearch. 2013 Alumni @42School.


  1. Meilisearch Expands Search Power with Arroy's Filtered Disk ANN

    This is part 3 of a series of blog posts. You can find the part 1 and part 2 on my blog. We can store vectors in arroy and efficiently compute the search tree nodes, but we still need some features to make it usable in Meilisearch. Our full-text search engine has great support for filtering; selecting subsets of documents is an essential feature to support. For instance, one of our biggest clients requires the ability to filter through over 100 million YouTube video metadata and their associated image embeddings to effectively select videos released within specific time frames, such as a single day or week. This represents the scalability and responsiveness challenges we aim to address with our filtering system, making it a perfect use case to tailor our developments.

  2. Multithreading and Memory-Mapping: Refining ANN Performance with Arroy

    This is part 2 of a series of blog posts. You can find the part 1 and part 3 on my blog. Wouldn't it be great to show you how a single-threaded, memory-mapped key-value store can be more efficient than a hand-written memory-mapped solution? I faced issues while porting the Spotify disk-based Approximate Nearest Neighbors library to Rust and, more specifically, to LMDB. Those issues were primarily due to LMDB and memory safety. Here is the story.

  3. Spotify-Inspired: Elevating Meilisearch with Hybrid Search and Rust

    This is part 1 of a series of blog posts. You can find the part 2 and part 3 on my blog. Uniting Keyword and Semantic Search At Meilisearch we are working hard on hybrid search, mixing the widespread keyword search algorithm with the not-so-common semantic search. The former is very good at exact matching, while the latter finds stuff you can

  4. Using Rust and the GitHub CI for my blog

    This blog post will talk about how I created my first-ever blog website, and you are currently reading the first post of it. It is hosted on GitHub Pages and uses GitHub CI extensively. Before creating this website by hand, I hesitated with