1 research outputs found
Transfer Learning for Item Recommendations and Knowledge Graph Completion in Item Related Domains via a Co-Factorization Model
With the popularity of Knowledge Graphs (KGs) in recent
years, there have been many studies that leverage the abundant background knowledge available in KGs for the task of item recommendations. However, little attention has been paid to the incompleteness of
KGs when leveraging knowledge from them. In addition, previous studies have mainly focused on exploiting knowledge from a KG for item
recommendations, and it is unclear whether we can exploit the knowledge in the other way, i.e, whether user-item interaction histories can be
used for improving the performance of completing the KG with regard
to the domain of items. In this paper, we investigate the effect of knowledge transfer between two tasks: (1) item recommendations, and (2) KG
completion, via a co-factorization model (CoFM) which can be seen as a
transfer learning model. We evaluate CoFM by comparing it to three competitive baseline methods for each task. Results indicate that considering
the incompleteness of a KG outperforms a state-of-the-art factorization
method leveraging existing knowledge from the KG, and performs better than other baselines. In addition, the results show that exploiting
user-item interaction histories also improves the performance of completing the KG with regard to the domain of items, which has not been
investigated before