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SIGIR
2006
ACM
15 years 10 months ago
Regularized estimation of mixture models for robust pseudo-relevance feedback
Pseudo-relevance feedback has proven to be an effective strategy for improving retrieval accuracy in all retrieval models. However the performance of existing pseudo feedback meth...
Tao Tao, ChengXiang Zhai
DASFAA
2005
IEEE
136views Database» more  DASFAA 2005»
15 years 9 months ago
Distributed Intersection Join of Complex Interval Sequences
In many different application areas, e.g. space observation systems or engineering systems of world-wide operating companies, there is a need for an efficient distributed intersect...
Hans-Peter Kriegel, Peter Kunath, Martin Pfeifle, ...
ICRA
2005
IEEE
151views Robotics» more  ICRA 2005»
15 years 9 months ago
Landmark Based Position Estimation for Pinpoint Landing on Mars
- Many of NASA's planned missions for the coming decade will require a pinpoint landing (PPL) capability, whether for sample acquisition and return or for precise insertion in...
Yang Cheng, Adnan Ansar
SACMAT
2005
ACM
15 years 9 months ago
Role mining with ORCA
With continuously growing numbers of applications, enterprises face the problem of efficiently managing the assignment of access permissions to their users. On the one hand, secur...
Jürgen Schlegelmilch, Ulrike Steffens
ADBIS
2005
Springer
163views Database» more  ADBIS 2005»
15 years 9 months ago
XML Databases and Beyond - Plenty of Architectural Challenges Ahead
A key observation is that the invariants in database management determine the mapping steps of the supporting architecture. Referring to the multi-layered architecture of record-or...
Theo Härder