【报告时间】：2025年10月28日下午4:00

【报告地点】：王选所106会议室

【报告摘要】：

Entity/Relationship modeling is a great methodology with a fifty year track record of designing high-quality database schemata. Typically, this happens conceptually before translating the model to the logical level, such as relational databases. The talk will promote the recently introduced concept of Entity/Relationship Graphs, which establishes the first graph semantics for Entity/Relationship models. It will be demonstrated that E/R diagrams constitute a subclass of property graph schemata whose instances are E/R graphs that are designed well, referring to the absence of data redundancy and processing difficulty on target workloads. Furthermore, E/R graphs offer new opportunities in the management of entity and referential integrity. As a proof of concept, we showcase how the famous relational TPC-H benchmark performs when its schema, instances and workloads are translated into Neo4j.

Reference:

Philipp Skavantzos, Sebastian Link: Entity/Relationship Graphs: Principled Design, Modeling, and Data Integrity Management of Graph Databases. Proc. ACM Manag. Data 3(1): 40:1-40:26, (2025), https://doi.org/10.1145/3709690

【讲者简介】：

Sebastian Link is a Professor of Computer Science at the University of Auckland, where he is also the Director of Data Science in the birthplace of R, the world’s most used language for statistical analysis. As the Associate Dean International for Science, Sebastian has helped establish many transnational education programmes with leading universities in China and elsewhere. His contributions to data management earned Sebastian the 2013 Chris Wallace Award, the most prestigious research award for mid-career Computer Scientists in Australasia. He was also awarded a Doctor of Science by the University of Auckland in 2015. Sebastian’s research spans data dependency theory, data profiling for which he co-founded the company DataViadotto, conceptual and logical database design for a diverse range of data models. He has published in all top database conferences and journals, is currently on the editorial board of the VLDB Journal and Information Systems, and a regular member of programme committees such as SIGMOD, VLDB, and ICDE. Sebastian has led many prestigious research grants in New Zealand to successful outcomes.