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» Queries and Updates in the coDB Peer to Peer Database System
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WWW
2004
ACM
14 years 9 months ago
RDFPeers: a scalable distributed RDF repository based on a structured peer-to-peer network
Centralized Resource Description Framework (RDF) repositories have limitations both in their failure tolerance and in their scalability. Existing Peer-to-Peer (P2P) RDF repositori...
Min Cai, Martin R. Frank
GIS
2010
ACM
13 years 7 months ago
Exploiting local node cache in top-k queries within wireless sensor networks
Top-k queries are a popular type of query in Wireless Sensor Networks. Typical solutions rely on coordinated root-tonodes and nodes-to-root messages and on maintaining filters at...
Johannes Niedermayer, Mario A. Nascimento, Matthia...
EDBT
2009
ACM
108views Database» more  EDBT 2009»
14 years 1 months ago
Reverse k-nearest neighbor search in dynamic and general metric databases
In this paper, we propose an original solution for the general reverse k-nearest neighbor (RkNN) search problem. Compared to the limitations of existing methods for the RkNN searc...
Elke Achtert, Hans-Peter Kriegel, Peer Kröger...
ICDE
2007
IEEE
115views Database» more  ICDE 2007»
14 years 10 months ago
SPRITE: A Learning-Based Text Retrieval System in DHT Networks
In this paper, we propose SPRITE (Selective PRogressive Index Tuning by Examples), a scalable system for text retrieval in a structured P2P network. Under SPRITE, each peer is res...
Yingguang Li, H. V. Jagadish, Kian-Lee Tan
ICMCS
2007
IEEE
126views Multimedia» more  ICMCS 2007»
14 years 2 months ago
Learning from Relevance Feedback Sessions using a K-Nearest-Neighbor-Based Semantic Repository
This paper introduces a flexible learning approach for image retrieval with relevance feedback. A semantic repository is constructed offline by applying the k-nearest-neighborbase...
Matthew Royal, Ran Chang, Xiaojun Qi