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PVLDB
2008
167views more  PVLDB 2008»
15 years 2 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
CEC
2009
IEEE
15 years 8 months ago
Grammatical Evolution of L-systems
— L-systems are parallel generative grammars that can model branching structures. Taking a graphical object and attempting to derive an L-system describing it is a hard problem. ...
Darren Beaumont, Susan Stepney
ALIFE
2006
15 years 3 months ago
Genetic Stability and Territorial Structure Facilitate the Evolution of Tag-Mediated Altruism
Evolutionary theorists have long been interested in the conditions that permit the evolution of altruistic cooperation. Recent work has demonstrated that altruistic donation can ev...
Lee Spector, Jon Klein
RECOMB
2002
Springer
16 years 3 months ago
DNA sequence evolution with neighbor-dependent mutation
We introduce a model of DNA sequence evolution which can account for biases in mutation rates that depend on the identity of the neighboring bases. An analytic solution for this c...
Peter F. Arndt, Christopher B. Burge, Terence Hwa
VAMOS
2010
Springer
15 years 4 months ago
Variability in Time - Product Line Variability and Evolution Revisited
In its basic form, a variability model describes the variations among similar artifacts from a structural point of view. It does not capture any information about when these variat...
Christoph Elsner, Goetz Botterweck, Daniel Lohmann...