Locutusque_-_gpt2-xl-conversational-4bits

Quantization made by Richard Erkhov.

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gpt2-xl-conversational - bnb 4bits

• Model creator: https://huggingface.co/Locutusque/
• Original model: https://huggingface.co/Locutusque/gpt2-xl-conversational/

Original model description:

license: mit datasets:

• Locutusque/InstructMix language:
• en metrics:
• bleu
• perplexity
• loss
• accuracy pipeline_tag: text-generation widget:
  • text: >- <|USER|> Design a Neo4j database and Cypher function snippet to Display Extreme Dental hygiene: Using Mouthwash for Analysis for Beginners. Implement if/else or switch/case statements to handle different conditions related to the Consent. Provide detailed comments explaining your control flow and the reasoning behind each decision. <|ASSISTANT|>
  • text: >- <|USER|> Write me a story about a magical place. <|ASSISTANT|>
  • text: >- <|USER|> Write me an essay about the life of George Washington <|ASSISTANT|>
  • text: >- <|USER|> Solve the following equation 2x + 10 = 20 <|ASSISTANT|>
  • text: >- <|USER|> Craft me a list of some nice places to visit around the world. <|ASSISTANT|>
  • text: >- <|USER|> How to manage a lazy employee: Address the employee verbally. Don't allow an employee's laziness or lack of enthusiasm to become a recurring issue. Tell the employee you're hoping to speak with them about workplace expectations and performance, and schedule a time to sit down together. Question: To manage a lazy employee, it is suggested to talk to the employee. True, False, or Neither? <|ASSISTANT|> inference: parameters: temperature: 0.8 do_sample: True top_p: 0.14 top_k: 41 max_new_tokens: 250 repetition_penalty: 1.176

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Model Card

Model Details

• Model Name: gpt2-xl-conversational
• Model Type: Language Modeling
• Task: Generating Conversational Responses
• Hardware: 1x Nvidia Titan V
• Description: This model is trained on a dataset of conversations between a user and an AI assistant, with the goal of generating a coherent and relevant response to the user's input. It uses the GPT-2 architecture, a state-of-the-art transformer-based language model that is capable of generating high-quality text with a wide range of styles and tones. The model is fine-tuned on the conversational data using maximum likelihood estimation, and is evaluated based on its ability to generate responses that are both grammatically correct and semantically relevant to the user's input.

Intended Use

This model is intended to be used for generating conversational responses in a variety of contexts, such as chatbots, virtual assistants, and customer service applications. It is designed to provide natural and engaging responses to user input, with a focus on maintaining a consistent tone and style throughout the conversation. The model is suitable for use in both text-based and voice-based interfaces, and can be easily integrated into existing applications using the PyTorch and Transformers frameworks.

Training Data

The model is trained on a large dataset of conversational data, consisting of interactions between users and an AI assistant. The data is preprocessed to remove any sensitive information and is formatted in a way that is suitable for training a language model. The training data is split into a training set and a validation set, with the training set used to update the model parameters and the validation set used to evaluate the model performance. The model was trained on 300,000 examples and achieved excellent metrics.

Model Architecture

The model architecture used in this model is GPT-2, a transformer-based language model that is capable of generating high-quality text with a wide range of styles and tones. The GPT-2 architecture consists of a multi-layered decoder-only transformer, with self-attention mechanisms that allow the model to capture long-term dependencies and generate coherent text.

Evaluation Metrics

The model is evaluated based on several metrics, including loss, reward, penalty, BLEU score, and perplexity. The loss metric is calculated during training and reflects the difference between the predicted output and the actual output. The reward metric is based on the number of correct words generated by the model, while the penalty metric penalizes the model for repeating words consecutively. The BLEU score measures the similarity between the generated text and the ground truth text, while the perplexity metric measures how well the model is able to predict the next word in a sequence. During training, the model achieved the following metrics:

• BLEU score: 52
• Accuracy: 53
• perplexity: 4.3

Evaluation metrics:

Limitations and Bias

This model is not suitable for all use cases due to its limited training time on a weak computer. As a result, it may produce irrelevant or nonsensical responses. For optimal performance, I recommend using a GPU with at least 16 GB of VRAM and downloading the model manually instead of using the Transformers library. Here's how you should deploy the model:

import torch
from transformers import GPT2LMHeadModel, AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained("Locutusque/gpt2-xl-conversational")
model = GPT2LMHeadModel.from_pretrained("Locutusque/gpt2-xl-conversational", torch_dtype=torch.float16)
model.resize_token_embeddings(len(tokenizer))
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
model.to(device, dtype=torch.float32)
def generate_text(model: SENTIAForCausalLM, tokenizer, prompt, max_length=256):
    prompt = f'<|USER|> {prompt} <|ASSISTANT|> '
    input_ids = tokenizer.encode(prompt, add_special_tokens=True, max_length=max_length, truncation=True, return_tensors="pt").to(device)
    output = model.generate(input_ids, do_sample=True, temperature=0.3, top_p=0.7, top_k=23, repetition_penalty=1.176, max_length=max_length, pad_token_id=tokenizer.pad_token_id, eos_token_id=tokenizer.eos_token_id)
    output_ids = tokenizer.decode(output[0], skip_special_tokens=False)
    return output_ids
# Loop to interact with the model
while True:
    prompt = input("Enter a prompt (or 'q' to quit): ")
    if prompt == "q":
        break
    output_text = generate_text(model, tokenizer, prompt, max_length=1022)
    print(output_text)

Deploying and training the model

The model has been fine-tuned on a specific input format that goes like this "<|USER|> {user prompt} <|ASSISTANT|> {model prediction} ".