ANN2
Artificial Neural Networks for Anomaly Detection
Description
Training of neural networks for classification and regression tasks using mini-batch gradient descent. Special features include a function for training autoencoders, which can be used to detect anomalies, and some related plotting functions. Multiple activation functions are supported, including tanh, relu, step and ramp. For the use of the step and ramp activation functions in detecting anomalies using autoencoders, see Hawkins et al. (2002) <doi:10.1007/3-540-46145-0_17>. Furthermore, several loss functions are supported, including robust ones such as Huber and pseudo-Huber loss, as well as L1 and L2 regularization. The possible options for optimization algorithms are RMSprop, Adam and SGD with momentum. The package contains a vectorized C++ implementation that facilitates fast training through mini-batch learning.
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CRAN Check Status
Show all 14 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | OK |
| r-devel-linux-x86_64-debian-gcc | OK |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | NOTE |
| r-oldrel-macos-x86_64 | NOTE |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (2 non-OK)
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 12, 2026
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 11, 2026
whether package can be installed
Installation failed. See ‘/data/gannet/ripley/R/packages/tests-devel/ANN2.Rcheck/00install.out’ for details.
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb
installed package size
installed size is 29.6Mb
sub-directories of 1Mb or more:
cereal 1.4Mb
libs 28.1Mb