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GIS
2009
ACM
15 years 4 months ago
LBS (k, T)-anonymity: a spatio-temporal approach to anonymity for location-based service users
We propose a location-based query anonymization technique, LBS (k,T)-anonymization, that ensures anonymity of user's query in a specific time window against what we call know...
Amirreza Masoumzadeh, James Joshi, Hassan A. Karim...
INFOCOM
2011
IEEE
14 years 10 months ago
Bayesian-inference based recommendation in online social networks
—In this paper, we propose a Bayesian-inference based recommendation system for online social networks. In our system, users share their content ratings with friends. The rating ...
Xiwang Yang, Yang Guo, Yong Liu
OOPSLA
2005
Springer
16 years 3 days ago
Relational queries over program traces
Instrumenting programs with code to monitor runtime behavior is a common technique for profiling and debugging. In practice, instrumentation is either inserted manually by progra...
Simon Goldsmith, Robert O'Callahan, Alexander Aike...
VLDB
1999
ACM
140views Database» more  VLDB 1999»
15 years 11 months ago
Combining Histograms and Parametric Curve Fitting for Feedback-Driven Query Result-size Estimation
This paper aims to improve the accuracy of query result-size estimations in query optimizers by leveraging the dynamic feedback obtained from observations on the executed query wo...
Arnd Christian König, Gerhard Weikum
SIGIR
2008
ACM
15 years 6 months ago
Learning query intent from regularized click graphs
This work presents the use of click graphs in improving query intent classifiers, which are critical if vertical search and general-purpose search services are to be offered in a ...
Xiao Li, Ye-Yi Wang, Alex Acero