Vespa Newsletter, November 2022

In the Vespa Newsletter for November 2022, several key updates were highlighted, including performance improvements and new features. Multithreaded pre-filtering in Vespa 8.78.45 enhances approximate nearest neighbor queries by reducing latency through the use of the num-threads-per-search feature. The update also includes better hit estimates from parent document attributes, thanks to the use of fast-search with dictionary data in Vespa 8.84.14, which improves query plan efficiency. Additionally, new sample notebooks for training gradient boosting decision tree models using XGBoost and LightGBM were introduced, aimed at facilitating product search applications. Furthermore, Vespa Cloud, which had been available on AWS since 2019, is now also available in Google Cloud Platform (GCP) zones, expanding its accessibility for users.