3 papers
cs.DB2025
Handling out-of-order input arrival in CEP engines on the edge combining optimistic, pessimistic and lazy evaluation
Styliani Kyrama, Anastasios Gounaris
In Complex Event Processing, handling out-of-order, late, and duplicate events is critical for real-time analytics, especially on resource-constrained devices that process heteroge…
cs.DB2025
Stream DaQ: Stream-First Data Quality Monitoring
Vasileios Papastergios, Anastasios Gounaris
Data quality is fundamental to modern data science workflows, where data continuously flows as unbounded streams feeding critical downstream tasks, from elementary analytics to adv…
cs.DB2024
A survey of open-source data quality tools: shedding light on the materialization of data quality dimensions in practice
Vasileios Papastergios, Anastasios Gounaris
Data Quality (DQ) describes the degree to which data characteristics meet requirements and are fit for use by humans and/or systems. There are several aspects in which DQ can be me…