A hierarchical anisometric positional encoding that combines distance-indexed in-route and depot-anchored angular cross-route components improves transformer-based solvers for vehicle routing problems over index-based alternatives.
Self-attention with relative position representations
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Rethinking Positional Encoding for Neural Vehicle Routing
A hierarchical anisometric positional encoding that combines distance-indexed in-route and depot-anchored angular cross-route components improves transformer-based solvers for vehicle routing problems over index-based alternatives.