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PODS
2003
ACM
104views Database» more  PODS 2003»
14 years 10 months ago
Maintaining time-decaying stream aggregates
We formalize the problem of maintaining time-decaying aggregates and statistics of a data stream: the relative contribution of each data item to the aggregate is scaled down by a ...
Edith Cohen, Martin Strauss
PODS
2007
ACM
131views Database» more  PODS 2007»
14 years 10 months ago
Provenance semirings
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
Todd J. Green, Gregory Karvounarakis, Val Tannen
ALDT
2009
Springer
162views Algorithms» more  ALDT 2009»
14 years 4 months ago
Compact Preference Representation in Stable Marriage Problems
Abstract. The stable marriage problem has many practical applications in twosided markets like those that assign doctors to hospitals, students to schools, or buyers to vendors. Mo...
Enrico Pilotto, Francesca Rossi, Kristen Brent Ven...
PKDD
2009
Springer
144views Data Mining» more  PKDD 2009»
14 years 4 months ago
Compositional Models for Reinforcement Learning
Abstract. Innovations such as optimistic exploration, function approximation, and hierarchical decomposition have helped scale reinforcement learning to more complex environments, ...
Nicholas K. Jong, Peter Stone
CEC
2008
IEEE
14 years 4 months ago
Real-time evolution of an embedded controller for an autonomous helicopter
— In this paper we evolve the parameters of a proportional, integral, and derivative (PID) controller for an unstable, complex and nonlinear system. The individuals of the applie...
Benjamin N. Passow, Mario A. Góngora, S. Co...