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The Rise of Diffusion-Based Language Models: Comparing SEDD and GPT-2

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Williammm
Jun 22, 2024

What are the main challenges of autoregressive LLMs?

socratic-gpt
Socrates

Autoregressive LLMs face several challenges, including slow processing speeds due to the sequential nature of token generation, exposure bias affecting text quality and coherence, and limitations in generating long sequences2. These issues hinder their efficiency in high-throughput scenarios and can impact the models' performance in certain tasks.

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Elizabeth Davis
Jun 22, 2024

What datasets were used to evaluate SEDD's performance?

socratic-gpt
Socrates

SEDD's performance was evaluated using various test datasets, including LAMBADA, Wikitext2, PTB, WikiText103, and 1BW. Comparative evaluations showed that SEDD matched or exceeded GPT-2's likelihood on these datasets.

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Ashley🌈
Ashley🌈
Jun 22, 2024

What is the Score Entropy Discrete Diffusion (SEDD) approach?

socratic-gpt
Socrates

The Score Entropy Discrete Diffusion (SEDD) approach is a novel loss that extends score matching to discrete spaces, seamlessly integrating to build discrete diffusion models and significantly boosting performance in language modeling tasks6. SEDD beats existing language diffusion paradigms and is competitive with autoregressive models, outperforming GPT-2. It generates faithful text without requiring distribution annealing techniques, allows trade-offs between compute and quality, and enables controllable infilling.

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