矢量数据库：一个用于下一代AI应用程序的矢量数据库，提供了高效的矢量索引和检索功能

<p align="center"> <img height="100" src="https://github.com/qdrant/qdrant/raw/master/docs/logo.svg" alt="Qdrant"> </p> <p align="center"> <b>Vector Search Engine for the next generation of AI applications</b> </p> <p align=center> <a href="https://github.com/qdrant/qdrant/actions/workflows/rust.yml"><img src="https://img.shields.io/github/actions/workflow/status/qdrant/qdrant/rust.yml?style=flat-square" alt="Tests status"></a> <a href="https://qdrant.github.io/qdrant/redoc/index.html"><img src="https://img.shields.io/badge/Docs-OpenAPI%203.0-success?style=flat-square" alt="OpenAPI Docs"></a> <a href="https://github.com/qdrant/qdrant/blob/master/LICENSE"><img src="https://img.shields.io/github/license/qdrant/qdrant?style=flat-square" alt="Apache 2.0 License"></a> <a href="https://qdrant.to/discord"><img src="https://img.shields.io/discord/907569970500743200?logo=Discord&style=flat-square&color=7289da" alt="Discord"></a> <a href="https://qdrant.to/roadmap"><img src="https://img.shields.io/badge/Roadmap-2023-bc1439.svg?style=flat-square" alt="Roadmap 2023"></a> <a href="https://cloud.qdrant.io/"><img src="https://img.shields.io/badge/Qdrant-Cloud-24386C.svg?logo=cloud&style=flat-square" alt="Qdrant Cloud"></a> </p> **Qdrant** (read: _quadrant_) is a vector similarity search engine and vector database. It provides a production-ready service with a convenient API to store, search, and manage points—vectors with an additional payload Qdrant is tailored to extended filtering support. It makes it useful for all sorts of neural-network or semantic-based matching, faceted search, and other applications. Qdrant is written in Rust 🦀, which makes it fast and reliable even under high load. See [benchmarks](https://qdrant.tech/benchmarks/). With Qdrant, embeddings or neural network encoders can be turned into full-fledged applications for matching, searching, recommending, and much more! Qdrant is also available as a fully managed **[Qdrant Cloud](https://cloud.qdrant.io/)** ⛅ including a **free tier**. <p align="center"> <strong><a href="./QUICK_START.md">Quick Start</a> • <a href="#clients">Client Libraries</a> • <a href="#demo-projects">Demo Projects</a> • <a href="#integrations">Integrations</a> • <a href="#contacts">Contact</a> </strong> </p> ## Getting Started ### Python ``` pip install qdrant-client ``` The python client offers a convenient way to start with Qdrant locally: ```python from qdrant_client import QdrantClient qdrant = QdrantClient(":memory:") # Create in-memory Qdrant instance, for testing, CI/CD # OR client = QdrantClient(path="path/to/db") # Persists changes to disk, fast prototyping ``` ### Client-Server This is the recommended method for production usage. To run the container, use the command: ```bash docker run -p 6333:6333 qdrant/qdrant ``` Now you can connect to this with any client, including Python: ```python qdrant = QdrantClient("http://localhost:6333") # Connect to existing Qdrant instance, for production ``` ### Clients Qdrant offers the following client libraries to help you integrate it into your application stack with ease: - Official: [Go client](https://github.com/qdrant/go-client) - Official: [Rust client](https://github.com/qdrant/rust-client) - Official: [JavaScript/TypeScript client](https://github.com/qdrant/qdrant-js) - Official: [Python client](https://github.com/qdrant/qdrant-client) - Community: [Elixir](https://hexdocs.pm/qdrant/readme.html) - Community: [PHP](https://github.com/hkulekci/qdrant-php) - Community: [Ruby](https://github.com/andreibondarev/qdrant-ruby) - Community: [Java](https://github.com/metaloom/qdrant-java-client) ### Where do I go from here? - [Quick Start Guide](https://github.com/qdrant/qdrant/blob/master/QUICK_START.md) - End to End [Colab Notebook](https://colab.research.google.com/drive/1Bz8RSVHwnNDaNtDwotfPj0w7AYzsdXZ-?usp=sharing) demo with SentenceBERT and Qdrant - Detailed [Documentation](https://qdrant.tech/documentation/) are great starting points - [Step-by-Step Tutorial](https://qdrant.to/qdrant-tutorial) to create your first neural network project with Qdrant ## Demo Projects ### Discover Semantic Text Search 🔍 Unlock the power of semantic embeddings with Qdrant, transcending keyword-based search to find meaningful connections in short texts. Deploy a neural search in minutes using a pre-trained neural network, and experience the future of text search. [Try it online!](https://qdrant.to/semantic-search-demo) ### Explore Similar Image Search - Food Discovery 🍕 There's more to discovery than text search, especially when it comes to food. People often choose meals based on appearance rather than descriptions and ingredients. Let Qdrant help your users find their next delicious meal using visual search, even if they don't know the dish's name. [Check it out!](https://qdrant.to/food-discovery) ### Master Extreme Classification - E-commerce Product Categorization 📺 Enter the cutting-edge realm of extreme classification, an emerging machine learning field tackling multi-class and multi-label problems with millions of labels. Harness the potential of similarity learning models, and see how a pre-trained transformer model and Qdrant can revolutionize e-commerce product categorization. [Play with it online!](https://qdrant.to/extreme-classification-demo) <details> <summary> More solutions </summary> <table> <tr> <td width="30%"> <img src="https://qdrant.tech/content/images/text_search.png"> </td> <td width="30%"> <img src="https://qdrant.tech/content/images/image_search.png"> </td> <td width="30%"> <img src="https://qdrant.tech/content/images/recommendations.png"> </td> </tr> <tr> <td> Semantic Text Search </td> <td> Similar Image Search </td> <td> Recommendations </td> </tr> </table> <table> <tr> <td> <img width="300px" src="https://qdrant.tech/content/images/chat_bots.png"> </td> <td> <img width="300px" src="https://qdrant.tech/content/images/matching_engines.png"> </td> <td> <img width="300px" src="https://qdrant.tech/content/images/anomalies_detection.png"> </td> </tr> <tr> <td> Chat Bots </td> <td> Matching Engines </td> <td> Anomaly Detection </td> </tr> </table> </details> ## API ### REST Online OpenAPI 3.0 documentation is available [here](https://qdrant.github.io/qdrant/redoc/index.html). OpenAPI makes it easy to generate a client for virtually any framework or programming language. You can also download raw OpenAPI [definitions](https://github.com/qdrant/qdrant/blob/master/docs/redoc/master/openapi.json). ### gRPC For faster production-tier searches, Qdrant also provides a gRPC interface. You can find gRPC documentation [here](https://qdrant.tech/documentation/quick-start/#grpc). ## Features ### Filtering and Payload Qdrant enables JSON payloads to be associated with vectors, providing both storage and filtering based on payload values. It supports various combinations of `should`, `must`, and `must_not` conditions, ensuring retrieval of all relevant vectors unlike `ElasticSearch` post-filtering. ### Rich Data Types The vector payload accommodates diverse data types and query conditions, including string matching, numerical ranges, geo-locations, and more. These filtering conditions empower you to create custom business logic on top of similarity matching. ### Query Planning and Payload Indexes The _query planner_ leverages stored payload information to optimize query execution. For instance, smaller search spaces limited by filters might benefit from full brute force over an index. ### SIMD Hardware Acceleration Utilizi