Sciweavers

53 search results - page 4 / 11
» The Higher-Order Aggregate Update Problem
Sort
View
PODS
2010
ACM
187views Database» more  PODS 2010»
14 years 13 days ago
Incremental query evaluation in a ring of databases
This paper approaches the incremental view maintenance problem from an algebraic perspective. We construct a ring of databases and use it as the foundation of the design of a quer...
Christoph Koch
TON
2010
138views more  TON 2010»
13 years 2 months ago
SUSE: superior storage-efficiency for routing tables through prefix transformation and aggregation
Abstract--A novel storage design for IP routing table construction is introduced on the basis of a single set-associative hash table to support fast longest prefix matching (LPM). ...
Fong Pong, Nian-Feng Tzeng
MOBICOM
2010
ACM
13 years 7 months ago
Differential forms for target tracking and aggregate queries in distributed networks
Consider mobile targets moving in a plane and their movements being monitored by a network such as a field of sensors. We develop distributed algorithms for in-network tracking an...
Rik Sarkar, Jie Gao
SIGMOD
2005
ACM
254views Database» more  SIGMOD 2005»
14 years 7 months ago
Conceptual Partitioning: An Efficient Method for Continuous Nearest Neighbor Monitoring
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
Kyriakos Mouratidis, Marios Hadjieleftheriou, Dimi...
ICDE
2005
IEEE
107views Database» more  ICDE 2005»
14 years 8 months ago
Venn Sampling: A Novel Prediction Technique for Moving Objects
Given a region qR and a future timestamp qT, a "range aggregate" query estimates the number of objects expected to appear in qR at time qT. Currently the only methods fo...
Yufei Tao, Dimitris Papadias, Jian Zhai, Qing Li