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IMVC 2024 - Dr. Elad Levi, Sightful / Democratizing Large Language Models

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💫 Short Summary

The video discusses democratizing large language models, highlighting challenges, advancements, and extending capabilities. Meta released Lama models with 30 billion parameters, surpassing GPT3. Different approaches to generating responses using models like GPT-4 and Wizard LW are explored, along with parameter-efficient tuning methods. The process of embedding and aligning modality tokens with the diffusion model is demonstrated. The effectiveness of reinforcement learning and concerns about competition from the open-source community are discussed. Overall, techniques for obtaining high-quality models affordably and efficiently are emphasized.

✨ Highlights
📊 Transcript
Highlights of democratizing large language models by Elad Lavi at Slightful talk.
01:26
Elad discussed challenges in building high-quality LLMs and recent advancements enabling cost-effective high-quality LLMs.
Emphasized the importance of data sets like GPT-3 containing half a trillion tokens for training models.
Mentioned significant costs and challenges in training and serving large models.
OpenAI's data curation and instruction tuning processes were crucial for achieving high model performance.
Meta released new foundation models called Lama with 30 billion parameters, surpassing GPT3's 175 billion.
05:04
The larger dataset size of 1-1.5 trillion tokens allowed for better training and performance.
New models like Lama 2 and Mistral outperformed previous versions.
Google's Gemma model excelled on various benchmarks.
Training the Lama 7 billion model took only three hours and $600, producing powerful results.
Discussion on response generation using GPT-4 and Wizard LW models.
10:56
Method of evolving instructions for more nuanced responses is emphasized.
Importance of loss functions and limitations of current objectives in encouraging model behavior are mentioned.
Offline reinforcement learning is introduced as a solution to improve model performance by incorporating human feedback.
Training with reinforcement learning leads to significant performance improvements compared to traditional fine-tuning methods.
Using AI feedback for generation comparison and Model Behavior steering.
16:17
Parameter-efficient tuning methods like prefix tuning involve adding tokens before the prompt tokens for efficient training.
The LLm model can easily be extended for new capabilities like multimodality using the prefix tuning framework.
The ultimate goal is to align the LLm output with conditioning textual tokens for effective results.
The process of embedding involves training the model to extract modality tokens and aligning them with the diffusion model textual embedding.
18:46
The video showcases the use of large models in the GPT framework, with only 1% of parameters being trainable.
The model is capable of answering questions, generating audio, and can be customized based on objectives.
The enforcement learning framework is noted as highly effective.
Research suggests that Google and open AI may face competition from the open-source community, raising concerns for big companies.