An anti-periodic rotary positional encoding (M\u00f6bius RoPE) on 25% of heads collapses seed-to-seed variance in needle-in-a-haystack retrieval at matched perplexity.
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Anti-Periodic Positional Encoding: M\"obius Boundary Conditions Make In-Context Retrieval Reliable
An anti-periodic rotary positional encoding (M\u00f6bius RoPE) on 25% of heads collapses seed-to-seed variance in needle-in-a-haystack retrieval at matched perplexity.