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PODS
2004
ACM
115views Database» more  PODS 2004»
14 years 4 months ago
Foundations of Semantic Web Databases
The Semantic Web is based on the idea of adding more machine-readable semantics to web information via annotations written in a language called the Resource Description Framework ...
Claudio Gutiérrez, Carlos A. Hurtado, Alber...
PODS
2004
ACM
96views Database» more  PODS 2004»
14 years 4 months ago
Roads, Codes and Spatiotemporal Queries
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
Sandeep Gupta, Swastik Kopparty, Chinya V. Ravisha...
PODS
2004
ACM
95views Database» more  PODS 2004»
14 years 4 months ago
Conjunctive Queries over Trees
Georg Gottlob, Christoph Koch, Klaus U. Schulz
PODS
2004
ACM
189views Database» more  PODS 2004»
14 years 4 months ago
The Lixto Data Extraction Project - Back and Forth between Theory and Practice
We present the Lixto project, which is both a research project in database theory and a commercial enterprise that develops Web data extraction (wrapping) and Web service definiti...
Georg Gottlob, Christoph Koch, Robert Baumgartner,...
PODS
2004
ACM
148views Database» more  PODS 2004»
14 years 4 months ago
Deterministic Wavelet Thresholding for Maximum-Error Metrics
Several studies have demonstrated the effectiveness of the wavelet decomposition as a tool for reducing large amounts of data down to compact wavelet synopses that can be used to ...
Minos N. Garofalakis, Amit Kumar
PODS
2004
ACM
128views Database» more  PODS 2004»
14 years 4 months ago
Replicated Declustering of Spatial Data
The problem of disk declustering is to distribute data among multiple disks to reduce query response times through parallel I/O. A strictly optimal declustering technique is one t...
Hakan Ferhatosmanoglu, Aravind Ramachandran, Ali S...
PODS
2004
ACM
158views Database» more  PODS 2004»
14 years 4 months ago
Composing Schema Mappings: Second-Order Dependencies to the Rescue
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
PODS
2004
ACM
133views Database» more  PODS 2004»
14 years 4 months ago
Comparing and Aggregating Rankings with Ties
Ronald Fagin, Ravi Kumar, Mohammad Mahdian, D. Siv...
PODS
2004
ACM
95views Database» more  PODS 2004»
14 years 4 months ago
Specification and Verification of Data-driven Web Services
Alin Deutsch, Liying Sui, Victor Vianu