Rago-v2-13b

Rago v2 13B

Rago v2 13B is a 13B parameter retrieval-augmented generation-optimized model built by Neural Bridge AI and trained on RAG Full Dataset 20000. It is available under Apache license 2.0.

Model Description

Rago v2 13B model is a retrieval-augmented generation-optimized (RAGO) model, which enhances large language models by integrating an external authoritative knowledge base (context) for generating responses. This integration significantly improves the model's ability to produce relevant, accurate, and context-specific output across specialized domains or internal data without necessitating retraining. It addresses key challenges of large language models (LLMs), such as unpredictability, reliance on potentially outdated data, and the propagation of incorrect information, thereby improving user trust in AI applications. Rago v2 13B, specifically, is an advancement built upon the Llama 2 13B model, optimized for retrieval-augmented generation, making it particularly effective in contextually aware response generation.

from transformers import AutoTokenizer, AutoModelForCausalLM
import transformers
import torch

model = "neural-bridge/Rago-v2-13b"

tokenizer = AutoTokenizer.from_pretrained(model)
pipeline = transformers.pipeline(
    "text-generation",
    model=model,
    tokenizer=tokenizer,
    torch_dtype=torch.bfloat16,
    trust_remote_code=True,
    device_map="auto",
)

def create_prompt(context, question):
  return f"""##CONTEXT## {context} ##QUESTION## {question} ##ANSWER##"""

sequences = pipeline(
   create_prompt(
       context="Neural Bridge AI is a software company developing artificial intelligence (AI) solutions. It is founded in New York in the USA.",
       question="What solutions does Neural Bridge AI develop for its clients?"
   ),
    max_length=200,
    do_sample=True,
    top_k=10,
    num_return_sequences=1,
    eos_token_id=tokenizer.eos_token_id,
)

def print_result(generated_text):
  result_start = "##ANSWER##"
  answer_start = generated_text.find(result_start)
  print(generated_text[answer_start + len(result_start) :].strip())

for seq in sequences:
    print_result(seq["generated_text"])

Model Details

Training Data

Rago v2 13B has been trained using the Neural Bridge's RAG Full 20000 dataset, which comprises a blend of RefinedWeb, gms8k, and RAG Hallucination Dataset 1000.

Training Details

In terms of training specifics, Rago v2 13B is built upon Llama 2 13B employing LoRA to enhance the model's capability to deliver relevant, precise, and context-specific output across specialized domains or internal datasets. This approach aims to tackle significant challenges faced by LLMs, such as unpredictability, reliance on potentially outdated information, and the spread of incorrect data. The architecture of Rago v2 13B mirrors that of Llama 2 13B, augmented with LoRA adapters. The model is trained on a single NVIDIA A100 GPU for approximately two days, utilizing a learning rate of 1e-5 with cosine scheduler, alongside the following LoRA parameters:

• LoRA Rank (R): 64
• LoRA Alpha: 16
• LoRA Dropout: 0.1
• Target Modules: q_proj, k_proj, v_proj, o_proj

Rago v2 13B benefits from a custom data collator designed to boost model performance significantly. Employing a masked language modeling (MLM) strategy, the model is fine-tuned to generate more accurate responses by exclusively masking the answer portion of the training data. This custom data collator has led to noticeable improvements in the model's factuality performance.

Neural Bridge AI Rago Models Index

License

This public extract is made available under Apache license 2.0. Users should also abide to the Llama 2 13B ToU.