Knowledge graph (KG) construction pipelines must continuously integrate newly arriving entities into a growing graph. Unlike inserting triples between existing nodes, a newly arriving entity has no gr...
SNAP‑KG is a framework that assigns new entities to semantic communities in a growing knowledge graph using only raw features, without graph access or retraining at inference time. The authors evaluate it on five multi‑view benchmarks and a large OGB‑WikiKG2 graph, all of which contain at least one homophilous view, and find strong performance. Extending the evaluation to three heterophilous graphs shows that when no homophilous view exists, clustering quality drops sharply for both SNAP‑KG and transductive baselines; the key factor is the homophily of the relation rather than the number of relations, and multi‑view fusion only helps if at least one homophilous relation is present.
"whyItMatters":"The study reveals that SNAP‑KG’s effectiveness relies on the homophily assumption, highlighting a limitation for heterophilous knowledge graphs and suggesting a direction for future research on heterophily‑aware models."
By Jui-Chien Lin, Oshani Seneviratne
arXiv:2607. 03154v1 Announce Type: cross Abstract: Multi-domain knowledge graph completion (MKGC) aims to improve missing triple prediction in a target KG by transferring knowledge from other support KGs.
By Jiawei Sheng, Taoyu Su, Xixun Lin, Xiaodong Li, Tingwen Liu
arXiv:2606. 16509v1 Announce Type: new Abstract: Link prediction in knowledge graphs fundamentally depends on the quality of learned embeddings for entities and relations.
By Mohommad Esmaei Khani, Mahdieh Hasheminejad, Ali Taherkhani, Hossein Hajiabolhassan
FedV-KGQA addresses multi‑hop question answering over vertically partitioned knowledge graphs where each silo holds disjoint relation types. The system trains local embeddings, concatenates silo‑specific entity views, anchors questions at a topic entity, and ranks candidates without sharing raw triples. Experiments show federated fusion nearly matches centralized accuracy, that anchoring and enrichment are more critical than embedding choice, and that the cheapest encoder depends on target accuracy.
By Md Saikat Islam Khan Bappy, Oshani Seneviratne
arXiv:2510. 09711v2 Announce Type: replace-cross Abstract: Large Language Models (LLMs) have recently emerged as a powerful paradigm for Knowledge Graph Completion (KGC), offering strong reasoning and generalization capabilities beyond traditional embedding-based approaches.
By Wenbin Guo, Xin Wang, Jiaoyan Chen, Lingbing Guo, Zhao Li, Zirui Chen