Elastic Enterprise Search can now be centrally managed in Kibana, the single management interface for all Elastic solutions. Users can access App Search and Workplace Search features with consistent, cross-platform navigation to create new engines, tune query relevance, manage user access, and customize visualizations. Elastic also introduces precision tuning, now in beta and available in. and via the App Search API, and content source flexibility and synonym support for Workplace. Search engine can narrow or broaden their search results by adjusting precision and recall settings on their search engine.
Source: https://www.helpnetsecurity.com/2021/08/07/elastic-enterprise-search-kibana/

