1452 search results - page 262 / 291 » The Effectiveness of Query Expansion for Distributed Informa... |
SIGIR
2006
ACM
14 years 1 months ago
2006
ACM
We consider the problem of large-scale retrieval evaluation, and we propose a statistical method for evaluating retrieval systems using incomplete judgments. Unlike existing techn...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
P2P
2010
IEEE
13 years 6 months ago
2010
IEEE
—Privacy leaks are an unfortunate and an integral part of the current Internet domain name resolution. Each DNS query generated by a user reveals – to one or more DNS servers â...
SIGMOD
2008
ACM
13 years 7 months ago
2008
ACM
This demonstration presents RMFinder (Related Messages Finder), a system that retains the simplicity and efficiency of topic-based P2P pub-sub, while providing a richer service wh...
AIED
2005
Springer
14 years 1 months ago
2005
Springer
Collaborative learning is question-driven and open-ended by nature. Many of the techniques developed for intelligent tutoring are applicable only in more structured settings, but f...