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| Type | Journal Article |
| Scope | Discipline-based scholarship |
| Title | A framework for differentially-private knowledge graph embeddings |
| Organization Unit | |
| Authors |
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| Item Subtype | Original Work |
| Refereed | Yes |
| Status | Published in final form |
| Language |
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| Journal Title | Journal of Web Semantics |
| Publisher | Elsevier |
| Geographical Reach | international |
| ISSN | 1570-8268 |
| Volume | 72 |
| Page Range | 100696 |
| Date | 2022 |
| Abstract Text | Knowledge graph (KG) embedding methods are at the basis of many KG-based data mining tasks, such as link prediction and node clustering. However, graphs may contain confidential information about people or organizations, which may be leaked via embeddings. Research recently studied how to apply differential privacy to a number of graphs (and KG) analyses, but embedding methods have not been considered so far. This study moves a step towards filling such a gap, by proposing the Differential Private Knowledge Graph Embedding (DPKGE) framework. DPKGE extends existing KG embedding methods (e.g., TransE, TransM, RESCAL, and DistMult) and processes KGs containing both confidential and unrestricted statements. The resulting embeddings protect the presence of any of the former statements in the embedding space using differential privacy. Our experiments identify the cases where DPKGE produces useful embeddings, by analyzing the training process and tasks executed on top of the resulting embeddings. |
| Official URL | https://www.sciencedirect.com/science/article/pii/S1570826821000640 |
| Digital Object Identifier | 10.1016/j.websem.2021.100696 |
| Other Identification Number | merlin-id:21765 |
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