The Evolution of Language Models: From Word2Vec to GPT-4
Understanding key papers that led to the invention of LLMs like GPT-4
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Understanding key papers that led to the invention of LLMs like GPT-4
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Over the past decade, natural language processing (NLP) has undergone remarkable advancements, thanks to groundbreaking research and innovative techniques. From the initial development of Word2Vec to the emergence of large-scale pre-trained models like GPT and BERT, each step has significantly impacted the capabilities and applications of NLP systems. In this post, we explore the key research papers and ideas that have shaped the field, tracing the evolution from Word2Vec to GPT-4.
Word2Vec: Introduced the concept of learning word embeddings that capture semantic meaning by predicting surrounding words in a sentence.
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Seq2Seq: Built on word embeddings to develop the encoder-decoder architecture using RNNs for mapping input sequences to output sequences. 📃
Attention Mechanism: Improved seq2seq models by enabling networks to focus on relevant parts of the input when generating output. 📃
Transformers: Introduced a novel NLP architecture that relied solely on attention mechanisms, discarding RNNs and CNNs. 📃
GPT: Applied unsupervised pre-training and task-specific fine-tuning using the Transformer architecture to achieve impressive performance. 📃
BERT: Extended pre-training with masked language modeling, enabling bidirectional context learning and achieving state-of-the-art performance. 📃
T5: Adopted a unified text-to-text framework, demonstrating the importance of a unified approach for various NLP problems. 📃
GPT-2: Increased model size and training data, demonstrating remarkable text generation abilities and raising ethical concerns. 📃
GPT-3: Made a major leap forward with a larger model and more diverse training data, showcasing impressive few-shot learning capabilities. 📃
LoRA: Addressed limitations of fine-tuning large-scale language models by introducing a low-rank adaptation technique, enabling efficient and effective fine-tuning. 📃
InstructGPT: Extended GPT-3 by training it to follow instructions, demonstrating improved performance on downstream tasks with fewer examples. 📃
GPT-4: The latest iteration, building on the successes of predecessors with further refinements and improvements, achieving state-of-the-art performance. 📃