Representing and querying now-relative relational medical data
作者：
Highlights：
• Temporal information plays a crucial role in medicine.
• Current relational approaches have notable limitations in treating “now-relative” data (i.e., holding at the current time).
• We propose an approach to treat now-relative relational data which can be paired with different decision support systems.
• We define a new data model and temporal algebra supporting possible and necessary time, and Allen’s temporal relations.
• We exemplify the impact of our approach, and study its theoretical and computational properties.
摘要
•Temporal information plays a crucial role in medicine.•Current relational approaches have notable limitations in treating “now-relative” data (i.e., holding at the current time).•We propose an approach to treat now-relative relational data which can be paired with different decision support systems.•We define a new data model and temporal algebra supporting possible and necessary time, and Allen’s temporal relations.•We exemplify the impact of our approach, and study its theoretical and computational properties.
论文关键词：Temporal relational data,Relational model and algebra,Now-relative data
论文评审过程：Received 12 June 2017, Revised 22 January 2018, Accepted 26 January 2018, Available online 21 February 2018, Version of Record 6 March 2018.
论文官网地址：https://doi.org/10.1016/j.artmed.2018.01.004
