Folksonomies provide a rich source of data to study social patterns taking place on the World Wide Web. Here we study the temporal patterns of users’ tagging activity. We show t...
Andrea Capocci, Andrea Baldassarri, Vito Domenico ...
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
Wen-Syan Li, Vishal S. Batra, Vijayshankar Raman, ...
The Internet Distance Map Service (IDMaps) [3] provides distance estimates between any pair of hosts connected to the Internet. The IDMaps system comprises two component types: Tr...
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...
Modern search engines are expected to make documents searchable shortly after they appear on the ever changing Web. To satisfy this requirement, the Web is frequently crawled. Due...