RAG model

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Discover adesso's Retrieval-Augmented Generation (RAG) Model, a breakthrough in AI that enhances large language models (LLMs) with up-to-date, external knowledge. This model promises smarter, cost-effective AI solutions by dynamically adapting to new information. Explore the core of RAG Model, its advantages, and the advanced technology behind it to leverage your internal database, guided by Rafael Dubach, one of the AI experts at adesso.

The RAG model decoded

What exactly is Retrieval-Augmented Generation (RAG)?

RAG enhances how large language models (LLMs) produce responses by integrating them with an external, authoritative knowledge base beyond their initial training data. LLMs, which learn from massive datasets and utilize billions of parameters, are adept at creating responses for tasks such as answering questions, translating between languages, and completing text. RAG boosts the LLMs' capabilities by linking them to specific domains or an organization's proprietary knowledge-base, thereby enriching their outputs without the necessity for retraining. This method offers a cost-efficient way to ensure the outputs of LLMs stay relevant, precise, accurate to you ground truth and valuable across various applications. So the two benefits of RAG are the cost-effective implementation and the access to current information without extensive retraining.

A closer look

At its core, this RAG employs a two-step process involving the creation and utilization of embeddings, a form of vector representation that captures the semantic essence of data. Firstly, the RAG model extracts data from pdfs and .txt files with the LangChain framework and by scrapping content of given websites with BeautifulSoup. It then processes this information to generate embeddings. These embeddings are high-dimensional vectors that encode the contextual and semantic features of the external data, effectively translating raw text into a mathematical format that machines can understand and analyze. This transformation is crucial as it allows the model to compare and contrast different pieces of information based on their semantic content rather than their surface-level characteristics.

Once these embeddings are created, they are stored in a specialized database optimized for vector operations. This database acts as a reservoir of knowledge that the RAG model can query to retrieve relevant information. When a user poses a question, the RAG model operates in two phases. In the initial phase, the 'retriever' component of the model searches the embedding database for vectors that are semantically close to the query's embedding. This process identifies the most relevant external data that matches the context or internal information related to the asked question. Subsequently, in the generation phase, the model passes the identified embeddings, alongside the original question, to a large language model (LLM). The LLM, equipped with the context provided by the embeddings, generates answers that are informed by the content of the external data sources. This step ensures that the answers are not only based on the model's pre-existing knowledge but are also supplemented with up-to-date information from the external sources.

By integrating the retrieval of external data with the generative capabilities of language models, the RAG system significantly enhances the accuracy and relevance of its responses. This approach allows for more informed and contextually aware answers, bridging the gap between static knowledge bases and the dynamic, evolving nature of human inquiry.

Under the hood

Diving deeper, the RAG model's strength lies in its use of these advanced packages:

  • Ollama: Ollama is a cutting-edge artificial intelligence framework designed for implementing and scaling AI models efficiently, with a focus on versatility and performance.
  • ChromaDB: Chroma is the open-source embedding database. Chroma makes it easy to build LLM apps by making knowledge, facts, and skills pluggable for LLMs.
  • LangChain: LangChain is a comprehensive framework designed for creating applications powered by language models, focusing on delivering context-aware and reasoning capabilities. It allows applications to seamlessly connect a language model to various sources of context, such as prompt instructions, few-shot examples, and specific content to ground its responses in. Additionally, it empowers applications to rely on a language model for reasoning, guiding them on how to answer based on the provided context and determining the appropriate actions to take.
  • BeautifulSoup4: BeautifulSoup4 is a Python library for parsing HTML and XML documents, widely used for web scraping due to its simplicity and capability to navigate, search, and modify the parse tree.
  • ChainLit (UI): Chainlit is an open-source Python package to build production ready Conversational AI.

Elevating AI with adesso's RAG Model

In conclusion, this RAG Model significantly leverages LLMs for more accurate, relevant, and timely responses. The innovative approach integrates dynamic, external knowledge bases with AI's computational power, offering practical, cost-effective enhancements to AI applications directly on your computer. By incorporating state of the art technologies like Ollama, ChromaDB, and LangChain, the RAG Model not only enriches AI's capabilities but also adapts to evolving information landscapes, supporting your journey towards more intelligent and adaptable solutions.

adesso is committed to driving forward AI innovations, making technology work smarter for you. Our RAG Model is a step towards a future where AI more effectively serves as a partner in innovation, ready to meet the challenges of an ever-changing world. Let’s continue to innovate together, harnessing the full potential of AI with your own RAG Model.


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Picture Rafael Dubach

Author Rafael Dubach

Rafael Dubach is a Junior Software Engineer at adesso and thus a tech enthusiast and innovator. His adventure in tech has led him to specialize in AI, where he is constantly amazed at its potential to redefine our world.

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