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SAC
2009
ACM
14 years 4 months ago
Defending online reputation systems against collaborative unfair raters through signal modeling and trust
Online feedback-based rating systems are gaining popularity. Dealing with collaborative unfair ratings in such systems has been recognized as an important but difficult problem. T...
Yafei Yang, Yan Lindsay Sun, Steven Kay, Qing Yang
IPPS
2007
IEEE
14 years 4 months ago
Online Aggregation over Trees
Consider a distributed network with nodes arranged in a tree, and each node having a local value. We consider the problem of aggregating values (e.g., summing values) from all nod...
C. Greg Plaxton, Mitul Tiwari, Praveen Yalagandula
SIGCOMM
2010
ACM
13 years 10 months ago
Twittering by cuckoo: decentralized and socio-aware online microblogging services
Online microblogging services, as exemplified by Twitter, have become immensely popular during the latest years. However, current microblogging systems severely suffer from perfor...
Tianyin Xu, Yang Chen, Xiaoming Fu, Pan Hui
INFORMATICALT
2002
154views more  INFORMATICALT 2002»
13 years 9 months ago
Adaptive Stable Control of Manipulators with Improved Adaptation Transients by Using On-line Supervision of the Free-Parameters
An adaptive control scheme for mechanical manipulators is proposed. The control loop essentially consists of a network for learning the robot's inverse dynamics and on-line ge...
Manuel de la Sen, Ana Almansa
CASCON
1996
114views Education» more  CASCON 1996»
13 years 11 months ago
Modeling on-line rebalancing with priorities and executing on parallel database systems
Because changes to the database (DB) and workload occur during a DB system's lifetime, the physical DB design must evolve to sustain good performance. These changes are carri...
Daniel C. Zilio