Sciweavers

2145 search results - page 148 / 429
» Answering Queries Using Views
Sort
View
DCG
2010
289views more  DCG 2010»
15 years 3 months ago
Algorithms for Approximate Shortest Path Queries on Weighted Polyhedral Surfaces
We consider the well known geometric problem of determining shortest paths between pairs of points on a polyhedral surface P, where P consists of triangular faces with positive we...
Lyudmil Aleksandrov, Hristo Djidjev, Hua Guo, Anil...
PODS
2012
ACM
297views Database» more  PODS 2012»
13 years 6 months ago
Query-based data pricing
Data is increasingly being bought and sold online, and Webbased marketplace services have emerged to facilitate these activities. However, current mechanisms for pricing data are ...
Paraschos Koutris, Prasang Upadhyaya, Magdalena Ba...
ICDE
2009
IEEE
205views Database» more  ICDE 2009»
16 years 5 months ago
Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
Thanh Tran, Haofen Wang, Sebastian Rudolph, Philip...
SIGMOD
2007
ACM
232views Database» more  SIGMOD 2007»
16 years 3 months ago
BLINKS: ranked keyword searches on graphs
Query processing over graph-structured data is enjoying a growing number of applications. Keyword search on a graph finds a set of answers, each of which is a substructure of the ...
Haixun Wang, Hao He, Jun Yang 0001, Philip S. Yu
ICDE
2010
IEEE
214views Database» more  ICDE 2010»
16 years 3 months ago
Differential Privacy via Wavelet Transforms
Privacy preserving data publishing has attracted considerable research interest in recent years. Among the existing solutions, -differential privacy provides one of the strongest p...
Xiaokui Xiao, Guozhang Wang, Johannes Gehrke