Entity alignment and product matching

A data processing module for aligning entities between a first knowledge graph, KG1, and a second knowledge graph, KG2, the data processing module comprising:

• an encoder configured to embed each entity node of KG1 and KG2 to generate a basic entity representation of each knowledge graph;
• an aggregator configured to:
• generate a relation representation of each knowledge graph using a first graph attention mechanism;
• generate an entity embedding including the relation representation using a second graph attention mechanism;
• concatenate the entity embedding including the relation representation with the basic entity representation to generate a relation-aware entity representation of each knowledge graph;
• and
• generate an enhanced entity representation of each knowledge graph comprising a single vector for each embedded entity node using a third graph attention mechanism;
• and
• a comparator configured to compare each node of the enhanced entity representation of KG1 with each node of the enhanced entity representation of KG2 to generate a similarity matrix between KG1 and KG2.