Introduction to Parameter Efficient Fine-Tuning with Low-Rank Adaptation (LoRA) At its core, the theory behind LoRA revolves around matrix factorization and the principle of low-rank approximations. In linear algebra, any given matrix can be decomposed into several matrices of lower rank....
lora_alpha: LoRA中的随机失活正则化项的系数,值越大正则化强度越大。这里设置为32。 lora_dropout: LoRA中使用的dropout比例,用于防止过拟合。这里设置为0.01。 target_modules: 指定微调哪些transformer模块的参数。这里设置为['query'],即只调整query层的权重矩阵。 我们最终都设定为,在序列分类任务上微调模型,采...
However, the resource requirements of these MoEs remain challenging, particularly for consumer-grade GPUs with less than 24GB memory. To tackle these challenges, we propose MixLoRA, an approach to construct a resource-efficient sparse MoE model based on LoRA. MixLoRA inserts multiple LoRA-based ...
LoRA 另外一个非常重要的特性是：可重用性。由于LoRA不改变原模型的参数，它在多任务或多场景的应用中具有很高的可重用性。不同任务的低秩矩阵可以分别存储和加载，灵活应用于不同任务中。比如在手机终端上，要跑应用的终端大模型。一个应用的模型会处理不同的任务，可以针对不同的任务，训练不同的 LoRA ...
DataCollatorWithPadding, TrainingArguments, Trainer) from peft import PeftModel, PeftConfig, get_peft_model, LoraConfig import evaluate import torch import numpy as np 2.4.2. 微调数据构造 # # load imdb data imdb_dataset = load_dataset("stanfordnlp/imdb") ...
This is a super helpful response, wondering how this changes with the QLora + FSDP implementation? Launching with accelerate and FSDP, it still appears as though the entire initialization process happens on 1 GPU and if it the quantized model doesn't fit it errors out due to OOM. ...
We have had many requests (rightfully so) for allowing to fine-tune the text encoder with LoRA (such as #2683). This is quite useful for improving the quality of the generated samples. This issue thread aims to discuss a solution candida...
LoRA LoRA(Layerwise Optimized Rates and Annes) 是一种新的微调策略，与Fine-tuning和 Prompt-tuning ...
#frompretrainednetworkwithshapeinput_dimxoutput_dimW_A=nn.Parameter(torch.empty(input_dim,rank))#...
If you're interested in fine-tuning the SDXL model with accelerate and transformers, check out the SDXL DreamBoot LoRA Colab Notebook. The notebook is a bit outdated, and you might have to make changes in order to run it properly. Setting Up Before we run the DreamBooth script, we sh...