Percepta: High Performance Stream Processing at the Edge

Clarisse Sousa, Tiago Fonseca, Luis Lino Ferreira, Ricardo Venâncio, Ricardo Severino INESC - TEC/ Instituto Superior de Engenharia do Porto Porto, Portugal {cassa, calof, llf, ravrf, sev } @isep .ipp.pt Abstract -- The rise of real - time data and the proliferation of Internet of Things (IoT) devices have highlighted the limitations of cloud - centric solutions, particularly regarding latency, bandwidth, and privacy. These challenges have driven the growth of Edge Computing. Associated with IoT appears a set of other problems, like: d ata rate harmonization between multiple sources, protocol conversion, handling the loss of data and the integration with Artificial Intelligence ( AI) models . This paper presents Percepta, a lightweight D ata S tream P rocess ing (DSP) system tailored to support AI workloads at the edge, with a particular focus on such as Reinforcement Lear ning (RL). It introduces specialized features such as reward function computation, data storage for model retraining, and real - time data preparation to support continuous decision - making. Additional functionalities include data normalization, harmonization across hetero geneous protocols and sampling rates, and robust handling of missing or incomplete data, making it well - suited for the challenges of edge - based AI deployment .