Datta, AnwitamanAberer, KarlNejdl, Wolfgang2005-07-132005-07-132005-07-132004https://infoscience.epfl.ch/handle/20.500.14299/214742This paper focuses on replication in DHT based structured overlay networks, and presents a theoretical framework for optimal replication in such networks with respect to query frequency. In particular, we determine the optimal replication factor for query-adaptive load balancing, and a topology specific placement strategy for an important class of DHT networks. We also provide a taxonomy of replication strategies in existing systems, discussing them with respect to this optimal scheme, and sketch further issues relevant for implementing this scheme in DHT networks. a.. keywords: Query-adaptivity, Optimal replication, Load-balancing, Distributed Hash TablesNCCR-MICS/CL4NCCR-MICStext::report