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DASFAA
2010
IEEE
176views Database» more  DASFAA 2010»
15 years 6 months ago
Efficient Database-Driven Evaluation of Security Clearance for Federated Access Control of Dynamic XML Documents
Achieving data security over cooperating web services is becoming a reality, but existing XML access control architectures do not consider this federated service computing. In this...
Erwin Leonardi, Sourav S. Bhowmick, Mizuho Iwaihar...
CORR
2002
Springer
104views Education» more  CORR 2002»
15 years 6 months ago
Preprocessing Chains for Fast Dihedral Rotations Is Hard or Even Impossible
We examine a computational geometric problem concerning the structure of polymers. We model a polymer as a polygonal chain in three dimensions. Each edge splits the polymer into t...
Michael A. Soss, Jeff Erickson, Mark H. Overmars
DKE
1999
118views more  DKE 1999»
15 years 5 months ago
Designing Data Warehouses
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
Dimitri Theodoratos, Timos K. Sellis
177
Voted
PVLDB
2008
108views more  PVLDB 2008»
15 years 5 months ago
Taming verification hardness: an efficient algorithm for testing subgraph isomorphism
Graphs are widely used to model complicated data semantics in many applications. In this paper, we aim to develop efficient techniques to retrieve graphs, containing a given query...
Haichuan Shang, Ying Zhang, Xuemin Lin, Jeffrey Xu...
SIGMOD
2012
ACM
250views Database» more  SIGMOD 2012»
13 years 8 months ago
Authenticating location-based services without compromising location privacy
The popularity of mobile social networking services (mSNSs) is propelling more and more businesses, especially those in retailing and marketing, into mobile and location-based for...
Haibo Hu, Jianliang Xu, Qian Chen, Ziwei Yang