dataset for LLM4HGNAS

A heterogeneous graph, also known as a mixed graph, is a type of graph that contains more than one type of edge or node. In contrast to homogeneous graphs, where all nodes and edges are of the same kind, heterogeneous graphs allow for a more nuanced representation of complex systems. They are particularly useful in modeling real-world scenarios where different types of entities and relationships exist, such as social networks, biological systems, and the Semantic Web. In a heterogeneous graph, nodes can represent various entities such as people, organization