https://nalar.dev/tags/positional-encoding/ Recent content in Positional Encoding on Nalar Hugo en-us Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/understand-positional-information-in-transformer-models/ Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/understand-positional-information-in-transformer-models/ <p>Self-attention can compare every token with other tokens in a context, but the comparison alone does not tell the model where those tokens occur. A sentence is not just a collection of words: changing their order can change the meaning.</p> <p>Transformer models therefore need a way to represent <strong>positional information</strong>. This mechanism lets the network distinguish, for example, the first occurrence of a token from a later occurrence and reason about relationships such as &ldquo;the previous token&rdquo; or &ldquo;far earlier in the document.&rdquo;</p>