Reading
Explore an enterprise-grade document search platform based on Retrieval-Augmented Generation (RAG) technology. This platform combines vector databases, large language models, and cloud-native architecture to enable intelligent semantic search and context-aware Q&A across enterprise documents such as PDFs, Word files, and emails.
Section 01
Explore an enterprise-grade document search platform based on Retrieval-Augmented Generation (RAG) technology. This platform combines vector databases, large language models, and cloud-native architecture to enable intelligent semantic search and context-aware Q&A across enterprise documents such as PDFs, Word files, and emails.
Section 02
Section 03
Enterprise document management has long faced several key pain points:
Information Silo Problem: Enterprise knowledge is scattered across multiple formats and storage locations such as PDFs, Word documents, emails, and knowledge bases, making it difficult for employees to quickly find the information they need.
Limitations of Traditional Search: Keyword-based search cannot understand user intent, often returning a large number of irrelevant results or missing truly relevant content.
Knowledge Update Lag: Static document libraries cannot reflect the latest business changes, and employees may make decisions based on outdated information.
Lack of Context Understanding: Traditional search cannot grasp the deep meaning of queries and cannot provide context-aware accurate answers.
This project addresses these pain points by building an intelligent search platform that can understand semantics and provide context-aware answers.
Section 04
The platform adopts a modern cloud-native architecture, where core components work together to form a complete intelligent search pipeline.
Section 05
The system uses a layered architecture design, with clear separation of responsibilities from user interaction to underlying storage:
User Layer: Provides a web interface and chat-based interaction interface, allowing users to ask questions in natural language.
Gateway Layer: The API Gateway handles request routing, load balancing, and security authentication, serving as the unified entry point for the system.
Core Service Layer: Includes key components such as search API, RAG engine, embedding service, and LLM service, which handle the actual search and generation logic.
Data Layer: The vector database is responsible for semantic indexing, and object storage saves original documents, forming a dual-track storage system.
Section 06
Retrieval-Augmented Generation (RAG) is the core technology of this platform. Its workflow is as follows:
Document Processing Stage: The system first parses and chunks uploaded documents such as PDFs and Word files, splitting long documents into fragments suitable for processing.
Vectorization Stage: Uses an embedding model to convert text fragments into high-dimensional vectors, which capture the semantic information of the text.
Index Construction: Vectors are stored in a dedicated vector database to support efficient similarity search.
Query Processing: When a user asks a question, the system first converts the query into a vector, then finds the most relevant document fragments in the vector space.
Answer Generation: The retrieved relevant fragments and the user's question are sent to a large language model to generate fact-based, context-aware answers with source references.
This design ensures the accuracy and traceability of answers, avoiding the hallucination problem that pure generative models may have.
Section 07
The platform uses a dedicated vector database to store and retrieve high-dimensional vectors. Vector databases are optimized for similarity search and can find the most similar entries from millions of vectors in milliseconds. This is crucial for a real-time search experience.
Section 08
The embedding service uses a pre-trained language model to convert text into vector representations. These vectors capture the semantic meaning of the text, so semantically similar texts are closer in the vector space. Even if the query terms are different from those used in the document, as long as the semantics are relevant, the system can find matching content.
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