Changelog

To get the latest stable release, go to the Download page, for earlier releases go the SourceForge downloads and for unreleased versions go to the git repository.

FANN 2.2.0 – 2012-01-24

• Added Sarprop training
• Added fann_create_train for creating an empty training data struct
• Added fann_copy for copying an ANN
• Added cascade_min_out_epochs and cascade_min_cand_epochs to improve cascade training
• Added extra checks when training, to ensure that data and network input and output sizes matches
• Added Visual Studio 2010 solution
• Added support for 64bit architecture
• Cleanup in sources
• Moved source from CVS to GIT

FANN 2.1.0 – 2007-02-01

• Added fann_create_train_from_callback for creating training data from a callback function
• Amended fann_create_train_from_callback for dynamic link library compatibility
• Added fann_get_activation_function and fann_get_activation_steepness matching the set functions
• Added a set of functions to allow restricted access to neural network layout, connections, and weights.
• Added FANN_SIN, FANN_COS, FANN_SIN_SYMMETRIC and FANN_COS_SYMMETRIC activation functions
• Changed the create_array functions to indicate that the layers array parameter is const i.e. input only
• Added FANN_API calling convention to fann_get_bit_fail and two cascade functions for dll compatibility
• Added FANN_EXTERNAL/FANN_API calling convention to previous extension functions for dll compatibility
• Removed warning from fann_print_connections with explicit casts
• Added fann_set/get_user_data to allow user programs to refer to their own data during callbacks
• Added documented C++ wrapper and sample C++ program
• Fixed bias count for shortcut networks in fann_get_layer_array and fann_get_bias_array
• Minor fixes of FANN_EXTERNAL/FANN_API for windows dll compatibility
• More advanced scaling functionality
• Added advanced scaling functionality to fann_cpp.h
• Additional documentation and fix of FANN_EXTERNAL for create train callback in fann_cpp.h
• Fixed problems with FANN_GAUSSIAN and FANN_GAUSSIAN_SYMMETRIC activation functions
• Added semi Widrow + Nguyen to initialization of cascade weights
• Fixed problem with RPROP, which makes it go suboptimal in the beginning
• Changed definition of MSE, so that it calculates a value pr output, and not a sum for all outputs. (MSE = MSE/ann->num_output)
• Added more benchmark data
• Added possebility to make benchmark as average of several
• Changed so that RPROP and Quickprop may not alter a weight to more than 1500

FANN 2.0.0 – 2006-01-06

• Added Delphi bindings
• Cascade training
• Momentum parameter
• Steepness and activation function available for single neurons
• New documentation
• Removed some depricated functions
• New set of fann_create functions
• Altered the way the callback function works
• Training can be stopped by counting the number of datasets that fail instead of just MSE
• Fixed a memory leak when copying training data
• More activation functions
• Enums used instead of integers for several parameters.
• Possebility to set default logging facility
• All parameters are saved to configuration file and not just the parameters needed to execute the ANN
• More readable configuration file
• Visual Studio .Net Project Files
• Borland C++ Builder 6.0 Project files

FANN 1.2.0 – 2004-10-09

• Fixes for better compability with different compilers
• Shortcut connections that skip layers
• Changed version of save fileformat
• fann_print_connections function
• More activation functions
• Batch training
• RPROP training (default)
• Quickprop training
• fann_get_training_algorithm and fann_set_training_algorithm functions
• fann_test_data function
• fann_print_parameters function
• Renamed some functions and variables to avoid confusion of terms (kept deprecated functions)

FANN 1.1.0 – 2004-03-31

• Error checking when allocating memory
• Debian package
• RPM package
• Added pkg-config
• Deallocate correctly in case of an error
• Renamed fann_get_error to fann_get_MSE (keeping old one for now)
• Renamed fann_reset_error to fann_reset_MSE (keeping old one for now)
• Rearanged some code for easy access by the newly created fann php module
• Defined more activation functions and documented the old (in fann_activation.h)
• Customize error output
• Added fann_set_error_log, fann_shuffle_train_data, fann_merge_train_data, and fann_duplicate_train_data, fann_init_weights
• Added python bindings
• Created DocBook XML documentation, including API reference
• Rearanged files for easier development
• Added MSVC++ project files

FANN 1.0.5 – 2004-01-06

• Added a new constructor
• Added a callback function for output during training
• Changed compile parameters for further performance
• Error value not set to zero after training
• Thanks to Evan Nemerson for some of these patches

FANN 1.0.4 – 2003-12-11

• Bugfix concerning default activation function

FANN 1.0.3 – 2003-12-09

• Added FANN_SIGMOID_STEPWISE activation function (faster)
• Moved files around and altered some files for easyer benchmarking
• Added a benchmark pdf file, benchmarking the new behavior.
• Better compability with non gnu compilers (should work off the shelf)

FANN 1.0.2 – 2003-11-13

• Added configure script
• Moved files around, to make the transition to configure more easy
• Removed other versions of documentation than pdf

FANN 1.0.1 – 2003-11-03

• Bugfix concerning steepness parameter
• Moved some files around
• Added the changelog

FANN 1.0.0 – 2003-11-01

• Initial release of full functioning library