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SIGIR
2008
ACM
13 years 8 months ago
A simple and efficient sampling method for estimating AP and NDCG
We consider the problem of large scale retrieval evaluation. Recently two methods based on random sampling were proposed as a solution to the extensive effort required to judge te...
Emine Yilmaz, Evangelos Kanoulas, Javed A. Aslam
CIKM
2009
Springer
14 years 22 days ago
Efficient feature weighting methods for ranking
Feature weighting or selection is a crucial process to identify an important subset of features from a data set. Removing irrelevant or redundant features can improve the generali...
Hwanjo Yu, Jinoh Oh, Wook-Shin Han
WWW
2005
ACM
14 years 9 months ago
A convenient method for securely managing passwords
Computer users are asked to generate, keep secret, and recall an increasing number of passwords for uses including host accounts, email servers, e-commerce sites, and online finan...
J. Alex Halderman, Brent Waters, Edward W. Felten
MOBICOM
2006
ACM
14 years 2 months ago
Boundary recognition in sensor networks by topological methods
Wireless sensor networks are tightly associated with the underlying environment in which the sensors are deployed. The global topology of the network is of great importance to bot...
Yue Wang, Jie Gao, Joseph S. B. Mitchell
SAC
2005
ACM
14 years 2 months ago
Formal modeling and quantitative analysis of KLAIM-based mobile systems
KLAIM is an experimental language designed for modeling and programming distributed systems composed of mobile components where distribution awareness and dynamic system architect...
Rocco De Nicola, Diego Latella, Mieke Massink