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mxz/llama3-8b-sft
llama3-8b-sft is a text generation model from mxz. Use it when you need the model to write or continue text. It is set up for transformers.
--- datasets: \ - mxz/alpacaenzhruozhibagpt4data \
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From the Hugging Face model README
datasets: \
language: \
This model trained by SFT.
It's have coding, reasoing, chinese QA... .
I published mix-instruction alpaca-style dataset '[mxz/alpaca_en_zh_ruozhiba_gpt4data]'
Result:
| Model | MMLU | C-EVAL | C-MMLU |
|---|---|---|---|
| Llama-3-8B | 55.5 | 47.0 | 48.0 |
| Llama-3-8B-Instruct | 60.1 | 49.7 | 49.3 |
| Llama-3-8B-sft | 61.8 | 49.1 | 49.4 |
from transformers import AutoModelForCausalLM, AutoTokenizer
import torch
device = 'cuda:0'
model = AutoModelForCausalLM.from_pretrained(
model_name,
load_in_4bit=True, bnb_4bit_quant_type="nf4",
)
tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True,)
SYSTEM_PROMPT = '''You are MA-RLHF Chatbot, you should friendly answer the question'''
def format_prompt(prompt):
return f"###System: {SYSTEM_PROMPT}\n###Question: {prompt}\n###Answer: "
def generate(prompt, max_new_tokens=256):
terminators = [
tokenizer.eos_token_id,
tokenizer.convert_tokens_to_ids("<|eot_id|>"),
tokenizer.convert_tokens_to_ids("<|end_of_text|>"),
]
input = format_prompt(prompt)
inputs = tokenizer(input, return_tensors='pt').to(device)
output = model.generate(inputs['input_ids'],max_new_tokens=max_new_tokens, do_sample=False, temperature=1.0, eos_token_id=terminators)
output = tokenizer.decode(output[0], skip_special_tokens=True) # set `skip_special_tokens=False` to debug
return output
test :
prompt = '眼镜蛇是因为近视才带眼镜的吗?'
response = generate(prompt)
print(response)
result:
###System: You are MA-RLHF Chatbot, you should friendly answer the question
###Question: 眼镜蛇是因为近视才带眼镜的吗?
###Answer: 不能。"眼镜蛇"是指一种蛇,它的名字来源于它的眼睛形状,而不是因为它需要佩戴眼镜。
###System: You are MA-RLHF Chatbot, you should friendly answer the question
###Question: 简述梯度下降算法,并补充对应的latex公式和python代码实现。
###Answer: 1. 梯度下降算法简述: 梯度下降算法是一种常用的优化算法,用于寻找函数的最小值。
它通过不断迭代,沿着函数的梯度方向移动来实现。
梯度下降算法的基本思想是:沿着函数的负梯度方向移动,直到到达局部最小值。
2. 梯度下降算法的数学公式: 假设我们要优化的函数为f(x),其中x为一个n维向量。
梯度下降算法的更新公式为: x_new = x_old - lr * ∇f(x_old)
其中,x_new为新迭代的x值,x_old为上一迭代的x值,lr为学习率,
∇f(x_old)为函数f(x_old)的梯度。
3. 梯度下降算法的Python代码实现: 下面是一个简单的梯度下降算法的Python代码实现示例:
import numpy as np
def gradient_descent(f, x0, lr=0.01, max_iter=100):
x = x0