understanding about LLM

#14
by Iamexperimenting - opened

Hi, I have few general questions to clarify with you.

  1. currently, I'm use my data(20 files) to create embedding from HuggingFaceEmbeddings. Even if I have 2 millions files do I need to follow the same steps like 1.create embedding from HuggingFaceEmbeddings, 2. do similarity test, and 3. pass it to model?
  2. At what stage I need to retrain the LLM?
  3. is it possible to retrain the LLM with my own data? or is there a concept "retraining" in LLM?
  4. currently, I'm using chromadb as vector db, In case if I want to move it production how do I host it? where do I store all my data(embeddings)?
  5. do I need to store all embedding in any database, if yes, could you please recommend any?
  6. how do I evaluated "google/flan-t5-xl" LLM with my data?
  7. currently, I noticed "google/flan-t5-xl" model with my data gives one wrong answer. so, how do I correct the model? if it is other model like text classification I would correct the label and retrain the model with corrected label. how do I do it here?
  8. how to do I get same answer whenever I run the model? like reproducibility having torch.manual_seed(0), should I mention this to get reproducibility?

Answers from ChatGPT (Not all are corrects, but kick start your thinking process):

  1. If you have a larger dataset of 2 million files, you would generally follow a similar process to create embeddings from HuggingFaceEmbeddings. However, you might need to consider the computational resources required for processing such a large dataset. You could divide the dataset into smaller batches or use distributed computing techniques to handle the large volume of data efficiently. The overall steps would still involve creating embeddings, performing similarity tests, and passing the embeddings to the model for further processing.

  2. The Language Model (LLM) in the FLAN-T5-XL model is pretrained on a vast corpus of text data. The need to retrain the LLM depends on the specific requirements of your application and the nature of your data. If you have a specialized domain or specific tasks for which the pretrained LLM doesn't perform well, you might consider fine-tuning or retraining the model on your data. However, keep in mind that retraining a large-scale model like FLAN-T5-XL from scratch requires substantial computational resources and labeled training data.

  3. The concept of retraining in the context of Language Models usually involves fine-tuning or transfer learning, where you take a pretrained model and further train it on a specific task or dataset. However, in the case of models like FLAN-T5-XL, which are trained by Google, the specific details of retraining the model might not be publicly available. Generally, training or retraining such models requires access to significant computational resources, large amounts of data, and expertise in deep learning techniques.

  4. If you want to move your ChromaDB-based vector database to a production environment, you would need to set up appropriate infrastructure for hosting the database. This could involve deploying it on dedicated servers, cloud platforms, or containerized environments. The choice of hosting method depends on your specific requirements, scalability needs, and available resources. You would store your data (embeddings) in the database and ensure it is accessible to the hosting environment.

  5. Storing embeddings in a database can be beneficial for efficient retrieval and querying. Some popular databases for storing embeddings include Elasticsearch, Apache Cassandra, MongoDB, and PostgreSQL. The choice of database depends on factors such as scalability requirements, indexing capabilities, query performance, and ease of integration with your existing system. You should evaluate the specific needs of your application and consider the trade-offs offered by different database solutions.

  6. To evaluate the "google/flan-t5-xl" LLM with your data, you can use various metrics depending on your specific task. For text generation tasks, you can assess the quality of generated text using human evaluations or automated metrics like BLEU, ROUGE, or perplexity. For other tasks like text classification or information retrieval, you can use metrics such as accuracy, precision, recall, or F1 score. The choice of evaluation metric depends on the nature of your task and the desired evaluation criteria.

  7. If you notice that the "google/flan-t5-xl" model gives incorrect answers for your data, you can't directly correct the model itself since it is a pretrained model provided by Google. However, you can fine-tune the model on your specific data to adapt it to your task and potentially improve its performance. Fine-tuning involves training the model on your labeled dataset, adjusting the model's parameters to better align with your data distribution and desired outputs. The process of fine-tuning can be complex and may require expertise in machine learning and access to computational resources.

  8. Reproducibility in machine learning experiments depends on various factors. While setting the random seed with torch.manual_seed(0) can help control the randomness in the model's initialization and training process, it might not be sufficient to guarantee exact reproducibility across different systems or frameworks. To achieve reproducibility, you should ensure consistent versions of software libraries, fix the random seed for random number generators of all involved components (including numpy, torch, and others), and control other sources of variability, such as hardware differences or multi-threading. Additionally, documenting the specific versions of software and hardware used in your experiments is important for reproducibility.

Sign up or log in to comment