How to Train LLM on Your Own Data: A Step-by-Step Guide

Generative AI applications are gaining significant popularity in various fields, including finance, healthcare, law, and e-commerce. Large language models (LLMs) are an important component of GenAI applications as they understand and produce human-readable content. However, pre-trained LLMs can assist you only to a limited extent if you want to use them for specialized domains like finance or the legal sector.

To overcome the limitations of pre-trained LLMs, you can train them on your own datasets. Here, you will learn how to train LLM on your own data through a stepwise procedure to develop LLM applications for your intended usage.

Why it Makes Sense to Train Your Own LLM?

LLMs utilize deep learning algorithms to automate a range of natural language processing tasks, including text generation, translation, summarization, or voice recognition. They are trained on massive datasets collected from various sources and standardized using a suitable set of tools. The functioning of LLMs is based on a neural network (NN) architecture called a transformer. The transformer model learns the context of sequential data, such as words or sentences, and uses it to generate new data.

Some popular LLMs include ChatGPT, Gemini, Llama, Bing Chat, and Copilot. You can use them in varied areas, including content creation for advertising or education. However, these LLMs also present challenges, such as less accurate or biased results and threats to sensitive data. To overcome these limitations, you can choose to train LLM on your own datasets.

Some of the prominent reasons why you should train LLM with your own data are as follows:

To Get Accurate Responses

For specialized industries like banking, pharma, agriculture, or media industry, responses tailored to domain-specific queries are crucial. The LLMs trained on generalized datasets may lack the contextual accuracy required in these specialized fields. As a result, opting to train LLM on domain-related data allows it to understand industry-specific terminology and provide responses that are relevant.

Improve LLM Performance

The volume of domain-related data is usually less than that of the generalized dataset. So, when you train an LLM on the focused dataset, it does not have to process large amounts of data to find precise answers to your queries. This improves the performance of LLMs and also makes your business workflow efficient.

To Control Training Datasets

To train LLMs on your own data, you first need to prepare your industry-specific dataset. This process involves collecting and transforming this data into a suitable format. Performing these processes helps you to curate a dataset according to your requirements and ensure that it is of high quality and bias-free.

Enhance Data Security

By training LLMs on your local infrastructure or secured cloud services, you can ensure the protection of your organizational data. You can implement role-based access control, encryption, or multi-step authentication mechanisms. Complete control over your dataset also allows you to follow data regulatory frameworks like GDPR or HIPAA.

To Develop Multi-lingual Solutions

If your organization operates on a global level, training LLMs on region-specific language can help models learn language with relevant idioms and phrases. This enhances customer service by improving communication and reduces churn rates by offering personalized interactions.

Step-by-Step Guide on Training LLM on Your Own Custom Data

For advantageous use of LLMs and to get more accurate results, it is important to know the procedure of how to train LLMs on your own data. Let’s try to understand how to achieve this step-by-step.

Step 1: Define Your Goals

Clearly define the objectives for which you want to utilize the LLM trained on your dataset. These may include generating specialized content, answering customer queries, or creating legal contracts. Outlining goals beforehand also gives you an idea about the computational resources and budget you will need to train LLMs.

Step 2: Collect and Prepare Your Data

To prepare your own dataset for LLM training, collect data relevant to your field and consolidate it at a unified location. You can then transform this data using suitable data cleaning techniques to convert it into a standardized form.

To simplify the process of making your data LLM-ready, you can use a data movement platform like Airbyte. It offers an extensive library of 400+ pre-built connectors, which you can use to extract data from various sources and load it into a desired destination system.

While using Airbyte, you can directly load semi-structured or unstructured data into vector databases such as Pinecone or Weaviate. These vector databases can then be integrated with LLM frameworks to optimize response quality. By loading data directly into vector data stores, you can streamline your GenAI workflows.

Here are some eye-catching features of Airbyte that make it a powerful choice for managing the data workflows required to build and maintain effective LLM-based applications:

• Flexibility to Develop Custom Connectors: Airbyte allows you to build custom connectors through its Connector Builder, Low Code Connector Development Kit (CDK), Python CDK, and Java CDK.
• ‍AI-powered Connector Creation: You can utilize AI assistant to streamline the custom connector configuration process while creating custom connectors through Connector Builder. This automates and simplifies the connector development process, reducing the time required for data preparation during LLM training.
• ‍Build Developer-Friendly Pipeline: PyAirbyte is an open-source Python library that provides a set of utilities for using Airbyte connectors in the Python ecosystem. Using PyAirbyte, you can extract data from any source and load it into SQL caches. You can also use PyAirbyte with frameworks like LangChain or LlamaIndex to develop LLM-based applications.
• ‍Change Data Capture (CDC): Airbyte's CDC feature helps you capture incremental changes made at the source data system and reflect them in the target system. By leveraging this feature, you can ensure that your LLM application users get accurate responses based on the updated data.
• ‍RAG (Retrieval-Augmented Generation): If you are training LLMs based on frameworks like LangChain or LlamaIndex, you can integrate them with the Airbyte platform to streamline the data ingestion process for RAG workflows. With Airbyte, you can load relevant unstructured data into vector databases, enabling efficient chunking and indexing.
• ‍Deployment Flexibility: When using Airbyte, you can choose from three deployment options. One is self-managed, which you can deploy locally or on your own infrastructure set-up. The second is the cloud-hosted edition, where you can focus on moving data while Airbyte manages the infrastructure. The third is the hybrid deployment option, which allows you to utilize Airbyte locally as well as remotely.
• ‍Detects Dropped Records: Data records that you extract from the source but cannot make it to the destination are called dropped data records. Airbyte enables you to detect dropped data records through improved state messages and record counting, which helps enhance data quality and LLM response generation.

Step 3: Set Up the Environment

Next, set up the infrastructural environment by organizing the necessary hardware and software tools. During this process, select the right machine learning framework, such as Tensorflow, PyTorch, or Hugging Face. This is imperative as the right framework will aid in efficient model training that fulfills your project’s demands. While choosing this framework, you should consider the availability of elements such as data size, computational resources, and budget.

Step 4: Choose Model Architecture

Several pre-trained LLM architectures are available, including GPT, T5, or BERT, and you can choose any of these architectures according to your requirements. GPT is a good option for effective text generation for article writing but produces less accurate results due to unidirectionality. In unidirectional LLM, language is processed only from left to right.

Conversely, BERT excels in generating more accurate context-based responses due to its bidirectionality. T5 is also bidirectional and can be used for a wide range of use cases, such as translation or text classification.

Step 5: Tokenize Your Data

LLM tokenization is a process of breaking down textual data into smaller units called tokens. These can be words, letters, characters, or punctuation. First, you must encode the input text into tokens using a tokenizer and then assign an index number to each token.

The tokens are then passed to the model, which consists of an embedding layer and transformer blocks. The embedding layer allows you to convert tokens into vectors to capture semantic meanings. The transformer block then facilitates the processing of these vector embeddings to enable LLM to understand the context and generate correct responses.

Step 6: Train the Model

First, configure the hyperparameters, such as learning rate, batch size, and number of training epochs. Then, start the training process. The model will generate predictions that you can compare with test data predictions. To optimize the predictions, you can use techniques such as stochastic gradient descent (SGD)  to reduce errors while training machine learning models.

Step 7: Evaluate and Fine-tune the Model

You should monitor the performance of LLM trained on your custom dataset. This can be done using evaluation metrics such as accuracy, precision, F1-score, or recall. You can further refine the LLM performance by fine-tuning it on smaller domain-specific datasets. Depending on your needs, you can opt for instruction fine-tuning, full fine-tuning, parameter efficient fine-tuning (PEFT), or any other fine-tuning methods.

Step 8: Implementation of LLM

Finally, you can deploy the LLM trained on your own dataset into your business workflow. This may include integrating the LLM with your website or application. You should also create an API endpoint to use the LLM with any application in real time.

To ensure proper functioning after deployment, you should continuously monitor your LLM, take feedback, and retrain it with updated datasets.

Conclusion

Training LLM with your own data is an efficient way for its targeted usage. This can ensure that the LLMs understand the requirements and terminologies related to your work. It also gives you more control over the quality of data used for training purposes, which helps you avoid biases in LLMs responses. To avoid data breaches or cyberattacks while using LLMs, you can further set up robust security mechanisms such as encryption or role-based access control.

This blog comprehensively explains how to train LLM on your own data using detailed steps. You can utilize this information to leverage AI smartly for your business growth.