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RoFormer and Rotary Position Embedding: Revolutionizing Positional Encoding in Transformers

Implementation of RoPE Rotary Position Embedding (RoPE) is a positional encoding method introduced in the 2021 RoFormer paper ( https://arxiv.org/pdf/2104.09864 ). This technique overcomes the limitations of absolute positional encoding and enhances a Transformer model's ability to capture sequence order and relative positions effectively. 1. Limitations of Traditional Positional Encoding Since Transformers cannot inherently model token order, positional encodings are added to token embeddings. Early models used sinusoidal encodings, and later learnable embeddings were introduced. However, these approaches have several drawbacks: They encode absolute rather than relative positions, reducing contextual precision Struggle with generalizing to sequences of varying lengths Increase model parameters and often degrade in long-range dependencies ...