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Machine Learning

Note on Calculating VRAM Consumption for Training and Inference of AI Models

I’ve always used rough formulas to estimate the relationship between the scale of my models and the GPU VRAM consumption; after all, there are too many variables involved—model architecture, number of layers, attention mechanism implementation, sequence length, batch size, data precision used in training or inference… all of these affect our final calculation results.

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Note Of KTOTrainer (Kahneman-Tversky Optimization Trainer)

I’ve been intermittently reading about a fine-tuning method called Kahneman-Tversky Optimization (KTO) from various sources like HuggingFace’s official documents and other online materials. It’s similar to DPO as a way to align models with human values, but KTO’s data preparation format is much more convenient, so I’m quickly applying it to my current tasks before making time to study the detailed content in the related papers.

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Notes on Fine-Tuning a Multi-Modal Large Language Model Using SFTTrainer (Taking LLaVa-1.5 as an Example)

A multi-modal large language model (Multi-Modal Large Language Model) isn’t limited to text only. I know this might sound contradictory, but this is a term that has become widely accepted. What I want to document today is how to fine-tune a multi-modal model using a script.

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[Machine Learning] Vector Quantization (VQ) Notes

The first time I heard about Vector Quantization (VQ) was from a friend who was working on audio processing, which gave me a vague understanding that VQ is a technique used for data feature compression and representation. At that time, I still wasn’t clear on how it differed from dimensionality reduction techniques like PCA.

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Troubleshooting Accelerated Inference of Gemma-2 on V100 GPUs Using vLLM

Problem Description

Recently, I’ve achieved some good application results by fine-tuning Gemma-2. However, I encountered various errors when deploying it on the client’s equipment, which was quite frustrating. Currently, there isn’t a systematic troubleshooting guide online, so I’m documenting it here.

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