FRINK Linked Data Fragments server

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• W2894217539 abstract "Wide-area data analytics has gained much attention in recent years due to the increasing need for analyzing data that are geographically distributed. Many of such queries often require real-time analysis on data streams that are continuously being generated across multiple locations. Yet, analyzing these geo-distributed data streams in a timely manner is very challenging due to the highly heterogeneous and limited bandwidth availability of the wide-area network (WAN). This paper examines the opportunity of applying multi-query optimization in the context of wide-area streaming analytics, with the goal of utilizing WAN bandwidth efficiently while achieving high throughput and low latency execution. Our approach is based on the insight that many streaming analytics queries often exhibit common executions, whether in consuming a common set of input data or performing the same data processing. In this work, we study different types of sharing opportunities and propose a practical online algorithm that allows streaming analytics queries to share their common executions incrementally. We further address the importance of WAN awareness in applying multi-query optimization. Without WAN awareness, sharing executions in a wide-area environment may lead to performance degradation. We have implemented our WAN-aware multi-query optimization in a prototype implementation based on Apache Flink. Experimental evaluation using Twitter traces on a real wide-area system deployment across geo-distributed EC2 data centers shows that our technique is able to achieve 21% higher throughput while saving WAN bandwidth consumption by 33% compared to a WAN-aware, sharing-agnostic system." @default.
• W2894217539 created "2018-10-05" @default.
• W2894217539 creator A5006850370 @default.
• W2894217539 creator A5014274842 @default.
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• W2894217539 date "2018-10-11" @default.
• W2894217539 modified "2023-10-03" @default.
• W2894217539 title "Multi-Query Optimization in Wide-Area Streaming Analytics" @default.
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• W2894217539 doi "https://doi.org/10.1145/3267809.3267842" @default.
• W2894217539 hasPublicationYear "2018" @default.
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