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280 lines
9.1 KiB
280 lines
9.1 KiB
1.04: 2000/6/17, add "load" button to svm-toy. README
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file updated.
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2.0: 2000/8, major updates. Include nu-svm, one-class svm, and svr
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2.01: 2000/9/22, correct the calculation of obj value and number of bounded support vectors
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2.02: 2000/9/29, replace b^2/2 newsvm to regular nu svm.
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2.03: 2000/10/24 some improvements on the computational speed
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2.1: 2000/12/19 Java version included, regression demonstrated in svm-toy
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2.2: 2001/1/16 multi-class classification, nu-SVR, remove epsilon_a
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2.3: 2001/3/15 c+-, cross validation, fix some minor bugs
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2.31: 2001/4/12 fix one bug on one-class SVM, use float for Cache
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2.32: 2001/9/23
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1. max line number of svm-scale now dynamic
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2. gcc 3.0 problem: now g++ always used
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3. java code in a "libsvm" package
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4. avoid a problem when compiled with Borland C++ builder
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2.33: 2001/12/1
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Python interface added
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2.34: 2002/6/15
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Add the subroutine svm_check_parameter in svm.cpp
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--> better error handling
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fix bug of python interface for handling different weights
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fix bug of cross validation in svm-train.c
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2.35: 2002/6/16
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libsvm.jar was not compiled correctly in 2.34
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2.36: 2002/8/4
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grid.py added: contour plot of CV accuracy
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fix several bugs
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2.4: 2003/4/1
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svm.cpp
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non-psd kernel using max(...,0) in svm.cpp
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python interface
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python interface bug (nu-svm)
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grid.py
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-log2c and -log2c for grid.py
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output current best
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coarse grid as default (2)
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ssh for grid.py
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improvements of scaling
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2.5: 2003/11/13
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subroutines for accessing decision values and number of labels.
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for svm.cpp, java, and python interface
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fix bug of svm-scale.c (about -r and -s factors)
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use fscanf but not sscanf in svm-predict.c (faster)
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makefile for windows
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add "using namespace std;" in some .java files
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improve easy.py: output cv rate, error messages printed
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better checking
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better python interface example svm_test.py
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and some minor updates
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2.6: 2004/04/01
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Probability estimates for classification/regression
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Python interface: use swig 1.3 instead of 1.1
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Cross validation becomes a library subroutine
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A few minor corrections: (not completely listed)
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more interface functions such as getting svm_type
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print nu only when Cp=Cn
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floor division in python interface
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2.7: 2004/11/10
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Stratified cross validation
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Better faq
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Scaling: support storing the factor of y
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A few minor updates:
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class QMatrix added
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improve the use of easy.py and grid.py on windows
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grid.py: same CV and same g: use smaller C
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sparse input for python interface
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working set selection: < to <=
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2.71: 2004/11/20
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fix a java bug introduced from 2.6 to 2.7
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2.8: 2005/04/01
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new working set selection via second order information
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fix minor changes/corrections:
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problem when cache size less than two kernel columns
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-v #data -> stratified CV is not loo -> ensure loo is done
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problem of typing "svm-train -c" only
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problem of "svm-train -n 1 -s 3 ..."
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python interface makefile: -fPIC for 32/64bit
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color change in svmtoy
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makefile in building QT svmtoy
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2.81: 2005/11/20
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add a python script subset.py for subsampling
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slightly modify the working set so it's exact the same as the paper
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default cache size to 100 MB
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2.82: 2006/04/01
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precomputed kernel
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directly implement a fast powi() function
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poly degree double to int
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minor corrections:
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java code for CV
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2.83: 2006/11/17
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Fix the bug of -t 3
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better checking load/save in svm-train.c/svm-predict.c/svm.cpp
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remove redundant var pos in svm_predict_values (thanks to Albert Strasheim)
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Better descriptions in README for the precomputed kernel
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2.84: 2007/04/01
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Improve the shrinking code: faster for some cases
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Code more 64-bit friendly: allow large -m
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In Solver, b is replaced by p
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Subroutine max_violating_pair removed. Things are directly
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written in do_shrinking().
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Modify do_shrinking() so variable names are the same as libsvm
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document
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2.85: 2007/11/6
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fix minor memory leak in svm-predict.c
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add tools/checkdata.py
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java to 1.5
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Makefile: CXX?
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Makefile.win: avoid warning from .net 2005
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avoid warning of gcc 4.2
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sigma 0.001 to 1e-12; in Newton direction of prob output
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2 * (long int) l avoid warning of old Visual C++
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grid.py: avoid gnuplot problem on windows
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2.86: 2008/04/01
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svm-scale for java
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version number in svm.h and svm.m4
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rename svmtrain.exe to svm-train.exe
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python: while 1 --> while True, Popen -> call
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show best parameters on the contour of grid.py
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2.87: 2008/10/13
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svm-toy/qt updated to qt4 from qt3
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fix a bug in svm-scale.c
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max feature index of -r file is considered
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Makefile: add make lib; add -Wconversion and -fPIC in Makefile
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Add "rb" in load_model of svm.cpp
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Simplify do_shrinking of svm.cpp
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Change the order of loops in reconstrict_gradient of svm.cpp
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save the number of kernel evaluations
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Add python/setup.py
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2.88: 2008/10/30
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better gradient reconstructions
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issue a warning when -h 0 may be faster
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2.89: 2009/04/01
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reduce input/loading time of svm-train/svm-predict by half
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pointer function so users can specify their own outputs
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remove info_flush()
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a extern variable libsvm_version
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svm-train -q option (disable outputs)
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svm-scale: warning if more nonzero produced
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easy.py: popel.communiate() to avoid some deadlock (if lots of
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outputs when #classes is large)
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2.9: 2009/11/1
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tools/*.py can be run under python 3.0
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svm_set_quiet() in python interface to disable outputs
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check gamma < 0
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internal functions to be static
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2.91: 2010/04/01
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completely new python interface using ctype
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new way to set the print_string function
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Java: able to load model from a BufferedReader directly
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fix grid.py so -log2c can be run under python 2.6 or after
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3.0: 2010/09/13
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Move model structure to svm.h
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Two functions for freeing a model (content or the whole model)
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QD from Qfloat to double (better precision because SSE on 64-bit machines less accurate than i387 on 32-bit
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exit status for checkdata.py
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old python interface (swig) is removed
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3.1: 2011/04/01
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MATLAB interface:
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Merge matlab interface to core libsvm
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Using mexPrintf() when calling info() in MATLAB interface.
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Both 32- and 64-bit windows binary files are provided
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Java:
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Math.random is replaced by Random in java interface
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Python interface:
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i subroutines to get SVs
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relative path to load *.dll and *.so
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svm.cpp:
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null pointer check before release memory in svm_free_model_content()
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svm_destroy_model() no longer supported.
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svm-train.c and svm-predict.c
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Better format check in reading data labels
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svm-toy:
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fix the svm_toy dialog path
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tools:
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Using new string formatting/encoding in tools/*.py
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clearer png output, fix grid.py legend
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3.11: 2011/11/5
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Set max number of iterations in the main loop of solvers
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matlab:
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new make.m for unix/mac/windows and for matlab/octave
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matlab and python:
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fix a problem that decision values returned by svmpredict is empty if number of classes = 1
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3.12: 2012/04/01
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svm-toy: support loading/saving of regression data
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python interface: handle the issue of the "0th" feature if using lists
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tools/grid.py: not redrawing contour if c,g, cv doesn't change
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add setlocale when saving and loading model so not affected by users' locale
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3.13: 2012/11/06
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svm.c and svm.h:
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add sv_indices in model structure, so users can know which training instances are SVs
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two library funs svm_get_sv_indices and svm_get_nr_sv are added
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max_iter warning moved to stderr so -q won't disable it
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svm-train.c:
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usage modified to stress that multiclass is supported
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svm-predict.c:
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add -q for svm-predict
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svm-scale.c:
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issue a warning if feature indices do not start from 1
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issue a warning for inconsistency between scaling-factor file and input file
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tools:
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subset.py is written to be much faster
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3.14: 2012/11/16
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fix a bug: we didn't re-compile windows binary after updating svm.def
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3.15: 2013/1/27
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fix the bug of not freeing sv_indices
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tools/grid.py:
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-null option: allow the search on C or g only
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-resume option: resume tasks from an earlier run
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can be called as a python module
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python interface:
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local package searched first
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libsvm options can be str or list
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param.show() becomes print(param)
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3.16: 2013/1/27
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tools/:
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easy.py fails in 3.15. Fix it by modifying grid.py
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3.17: 2013/04/01
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svm.cpp:
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if class labels are 1 and -1, ensure labels[0] = 1 and labels[1] = -1
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initialize model->sv_indices as null in svm_load_model
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if nr_fold > # data, change nr_fold to be # data and ro leave-one-out cv
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matlab interface:
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handle the problem where output variables are not specified
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3.18: 2014/04/01
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svm.cpp and svm-scale.c:
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check return values of fscanf
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matlab interface:
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Makefile no longer handles octave because make.m should be used
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3.19: 2014/10/27
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svm.cpp:
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use size_t rather than long int in some places for 64-bit windows support
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matlab interface:
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use size_t and mwIndex to avoid type conversions
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python interface:
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use __all__
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3.20: 2014/11/15
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matlab interface:
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fix a bug in libsvmwrite.c introduced in 3.19 (cannot run on windows)
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