Hybrid search explained: Full-text meets vector search

Hybrid search combines full-text and semantic search methods to provide more comprehensive and accurate search results by simultaneously running both approaches and merging their outcomes. This approach addresses the limitations of using either method alone, such as full-text search's inability to recognize synonyms and semantic search's difficulty with precise identifiers. Hybrid search is particularly beneficial for AI/ML applications, as it improves precision and recall by capturing both exact terminology and conceptual relationships, making it ideal for varied user queries in domains like legal, medical, and technical documentation. It also supports multilingual searches by balancing semantic meaning and language-specific terms. While implementing hybrid search involves higher resource usage and tuning complexity, its advantages in faster retrieval, better precision, and the ability to handle diverse query types make it valuable for applications like e-commerce, customer support, and code search. Redis provides a platform for building hybrid search systems by integrating vector and full-text search in a single query, offering efficient retrieval and additional features like category filters and session storage.