Update README.md

README.md

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 ## Version: v20241225_162244
 
-This model detects topic drift in conversations using an enhanced attention-based architecture. Trained on the [leonvanbokhorst/topic-drift](https://huggingface.co/datasets/leonvanbokhorst/topic-drift) dataset.
+This model detects topic drift in conversations using an enhanced attention-based architecture. Trained on the [leonvanbokhorst/topic-drift-v2](https://huggingface.co/datasets/leonvanbokhorst/topic-drift-v2) dataset.
 
 ## Model Architecture
 - Multi-head attention mechanism (4 heads)