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Kiran Kumār

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Open access Sep 2026

Where Does Streaming State Cost Go? A Reproducible Comparison of Flink and Kafka Streams on Kafka

This paper presents a controlled comparison of exactly-once Kafka pipelines implemented with Apache Flink and Kafka Streams, two engines with different state-management architectures. The state management in Flink occurs through checkpoints in external storage, whereas Kafka Streams restores local state by replaying br...

Kiran N. Kumar, Santhoshkumar Saminathan · 0 citations
Preprint Jul 2026

Task- and Session-Level Model Routing: A Common-Interface Hybrid Evaluation of Four Open-Source Routers Across Four Benchmarks

A common measurement protocol and hybrid evaluation of four router implementations across RouterBench, BFCL v4, tau2-bench, and WebArena shows that, under these configurations and controls, observed gains track selected-tier composition more closely than demonstrated task-specific targeting.

Kiran Kumār, Santhoshkumar Saminathan · 0 citations

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