Package: evtree
Title: Evolutionary Learning of Globally Optimal Trees
Version: 0.1-5
Date: 2014-06-19
Authors@R: c(person(given = "Thomas", family = "Grubinger", role = c("aut", "cre"), email = "Thomas.Grubinger@scch.at"),
person(given = "Achim", family = "Zeileis", role = "aut", email = "Achim.Zeileis@R-project.org"),
person(given = "Karl-Peter", family = "Pfeiffer", role = "aut", email = "Karl-Peter.Pfeiffer@i-med.ac.at"))
Description: Commonly used classification and regression tree methods like the CART algorithm
are recursive partitioning methods that build the model in a forward stepwise search.
Although this approach is known to be an efficient heuristic, the results of recursive
tree methods are only locally optimal, as splits are chosen to maximize homogeneity at
the next step only. An alternative way to search over the parameter space of trees is
to use global optimization methods like evolutionary algorithms. The evtree package
implements an evolutionary algorithm for learning globally optimal classification and
regression trees in R. CPU and memory-intensive tasks are fully computed in C++ while
the partykit package is leveraged to represent the resulting trees in R, providing
unified infrastructure for summaries, visualizations, and predictions.
Depends: R (>= 2.11.0), partykit
Suggests: Formula, kernlab, lattice, mlbench, multcomp, party, rpart,
xtable
LazyData: yes
License: GPL-2
Author: Thomas Grubinger [aut, cre],
Achim Zeileis [aut],
Karl-Peter Pfeiffer [aut]
Maintainer: Thomas Grubinger <Thomas.Grubinger@scch.at>
Packaged: 2014-06-21 21:27:06 UTC; tomturbo
NeedsCompilation: yes
Repository: CRAN
Date/Publication: 2014-07-01 10:31:19

Package: evtree
Title: Evolutionary Learning of Globally Optimal Trees
Version: 1.0-0
Date: 2014-10-14
Authors@R: c(person(given = "Thomas", family = "Grubinger", role = c("aut", "cre"), email = "Thomas.Grubinger@scch.at"),
person(given = "Achim", family = "Zeileis", role = "aut", email = "Achim.Zeileis@R-project.org"),
person(given = "Karl-Peter", family = "Pfeiffer", role = "aut", email = "Karl-Peter.Pfeiffer@i-med.ac.at"))
Description: Commonly used classification and regression tree methods like the CART algorithm
are recursive partitioning methods that build the model in a forward stepwise search.
Although this approach is known to be an efficient heuristic, the results of recursive
tree methods are only locally optimal, as splits are chosen to maximize homogeneity at
the next step only. An alternative way to search over the parameter space of trees is
to use global optimization methods like evolutionary algorithms. The evtree package
implements an evolutionary algorithm for learning globally optimal classification and
regression trees in R. CPU and memory-intensive tasks are fully computed in C++ while
the partykit package is leveraged to represent the resulting trees in R, providing
unified infrastructure for summaries, visualizations, and predictions.
Depends: R (>= 2.11.0), partykit
Suggests: Formula, kernlab, lattice, mlbench, multcomp, party, rpart,
xtable
LazyData: yes
License: GPL-2 | GPL-3
Packaged: 2014-10-15 10:36:17 UTC; grubinger
Author: Thomas Grubinger [aut, cre],
Achim Zeileis [aut],
Karl-Peter Pfeiffer [aut]
Maintainer: Thomas Grubinger <Thomas.Grubinger@scch.at>
NeedsCompilation: yes
Repository: CRAN
Date/Publication: 2014-10-15 13:16:40