Quality-driven disorder handling for concurrent windowed stream queries with shared operators
Yuanzhen Ji, Anisoara Nica, Zbigniew Jerzak, Gregor Hackenbroich, Christof W. Fetzer · 2016
Handling timestamp-disorder among stream tuples is a basic requirement for data stream processing, and involves an inevitable tradeoff between the latency and the quality of stream query results. To meet the tradeoff requirements of diverse streaming applications, the approach of buffer-based, quality-driven disorder handling (QDDH) was proposed recently, which aims to minimize sizes of stream-sorting buffers, thus the result latency, while honoring user-specified result-quality requirements.