Searching for authors named "Nikos Ntarmos" – sorted by Relevance.

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5 documents found, showing 1 through 5.

Counting at large: Efficient cardinality estimation in internet-scale data networks
by Nikos Ntarmos — 2006 — In Proc. IEEE ICDE
…Counting in general, and estimating the cardinality of (multi-) sets in particular, is highly desirable for a large variety of applications, representing a foundational block for the efficient deployment and access of emerging internetscale information systems. Examples of such applications range fr…
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SeAl: Managing Accesses and Data in Peer-to-Peer Sharing Networks
by Nikos Ntarmos, Peter Triantafillou — 2004 — Peer-to-Peer Computing
…We present SeAl , a novel data/resource and dataaccess management infrastructure designed for the purpose of addressing a key problem in P2P data sharing networks, namely the problem of wide-scale selfish peer behavior. Selfish behavior has been manifested and well documented and it is widely acc…
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Range query optimization leveraging peer heterogeneity
by Nikos Ntarmos, Theoni Pitoura, Peter Triantafillou — 2005 — In 3rd International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P
…Abstract. In this work we address the issue of efficient processing of range queries in DHT-based P2P data networks. The novelty of the proposed approach lies on architectures, algorithms, and mechanisms for identifying and appropriately exploiting powerful nodes in such networks. The existence of s…
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Decentralized searc...
by Sebastian Michel, Matthias Bender, Nikos Ntarmos, Peter Triantafillou, Gerhard Weikum, Christian Zimmer
…Peer-to-Peer (P2P) search requires intelligent decisions for query routing: selecting the best peers to which a given query, initiated at some peer, should be forwarded for retrieving additional search results. These decisions are based on statistical summaries for each peer, which are usually organ…
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Discovering and exploiting keyword and attribute-value co-occurrences to improve p2p routing indices
by Sebastian Michel, Matthias Bender, Nikos Ntarmos, Peter Triantafillou, Gerhard Weikum, Christian Zimmer — 2006 — In CIKM
…Peer-to-Peer (P2P) search requires intelligent decisions for query routing: selecting the best peers to which a given query, initiated at some peer, should be forwarded for retrieving additional search results. These decisions are based on statistical summaries for each peer, which are usually organ…
Cited by 12 (6 self) – Add To MetaCart

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