Commits · e89d424e5e270436e0d6b8e8f7b82eb0176e7274 · 钟尚武 / dlib

25 Mar, 2011 1 commit

Davis King authored Mar 24, 2011

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e89d424e

24 Mar, 2011 12 commits

minor change to avoid compiler warning in visual studio. · 4162c18f
Davis King authored Mar 24, 2011
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4162c18f

updated docs · f6ddef17

Davis King authored Mar 24, 2011

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f6ddef17

Added a unit test for the new svm_multiclass_linear_trainer. · e11cf36f
Davis King authored Mar 24, 2011
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e11cf36f

Filled out spec and cleaned up code. · 2b4b5e54

Davis King authored Mar 24, 2011

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2b4b5e54

Added some missing DLIB_ASSERT statements. · 0cd9fbd9
Davis King authored Mar 24, 2011
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0cd9fbd9
Moved the new multiclass svm trainer into dlib. Still need to clean up the code · 640acab2
Davis King authored Mar 24, 2011
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and setup the abstract file.

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640acab2

Fixed compile time error · 7cf342f9

Davis King authored Mar 24, 2011

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7cf342f9

updated docs · ef4523f3

Davis King authored Mar 23, 2011

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ef4523f3

improved spec · 4b2ab507

Davis King authored Mar 23, 2011

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4b2ab507

updated docs · 1580a7a7

Davis King authored Mar 23, 2011

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1580a7a7

updated spec · 660be979

Davis King authored Mar 23, 2011

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660be979

Fixed grammar · 75b0b774

Davis King authored Mar 23, 2011

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75b0b774

23 Mar, 2011 5 commits
- Added a structural SVM solver. · 01d8ff8d
  Davis King authored Mar 23, 2011
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- Minor cleanup, I removed unnecessary code. · 3db2ece6
  Davis King authored Mar 23, 2011
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- Removed inappropriate uses of const on the be_verbose() functions. · 514e0f38
  Davis King authored Mar 23, 2011
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- Added some more tests for the max_cost_assignment() function. · 926c2afa
  Davis King authored Mar 23, 2011
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  926c2afa
- Minor change to avoid a compiler warning in gcc. · 4f46a901
  Davis King authored Mar 23, 2011
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22 Mar, 2011 3 commits

updated docs · 0e25de9c

Davis King authored Mar 22, 2011

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0e25de9c

Added the multiclass_linear_decision_function object. · b9a1e0c9
Davis King authored Mar 22, 2011
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b9a1e0c9

It occurred to me that in some cases it is very easy to end up with dense vectors · 1e7659dc

Davis King authored Mar 22, 2011

which are slightly smaller than their corresponding sparse vectors.  So I changed
the requires clause of the dot(sparse,dense) and dot(dense,sparse) functions to not
require that the dense vector's size > sparse vector's size.  Now any combination
of sizes is legal.

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1e7659dc

21 Mar, 2011 3 commits

updated docs · 790f442b

Davis King authored Mar 20, 2011

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790f442b

Renamed assign_dense_to_sparse() to assign() and made it capable of also · bf43a30c

Davis King authored Mar 20, 2011

assigning from sparse to sparse.

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bf43a30c

Clarified spec. · f1d98591

Davis King authored Mar 20, 2011

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f1d98591

20 Mar, 2011 1 commit
- Added a dot() function which can dot a sparse vector with a dense vector. · 02ec16db
  Davis King authored Mar 20, 2011
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19 Mar, 2011 2 commits

updated docs · 57aed828

Davis King authored Mar 18, 2011

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57aed828

This change is mainly about adding a result_type typedef to the various function objects. · aed73cd0

Davis King authored Mar 18, 2011

Prior to this change, different function objects declared their return type in different ways,
now this has all been reconciled.  Now they all declare it as a public typedef named result_type.

I also simplified the cross_validate_multiclass_trainer(), cross_validate_trainer(),
test_binary_decision_function(), and test_multiclass_decision_function().  They now always
return double matrices regardless of any other consideration.

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aed73cd0

18 Mar, 2011 3 commits

Added some tests for the LIBSVM formatted data IO functions · 7e934b9d

Davis King authored Mar 18, 2011

and related routines.

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7e934b9d

updated docs · 4427c91a

Davis King authored Mar 18, 2011

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4427c91a

Added the fix_nonzero_indexing() function. · a6b8cc9b
Davis King authored Mar 18, 2011
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a6b8cc9b

17 Mar, 2011 2 commits

made test more robust · ae79b13a

Davis King authored Mar 16, 2011

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Simplified the oca implementation slightly. It no longer keeps track of the · eef728d2

Davis King authored Mar 16, 2011

best point seen so far.  This change will allow me to use the optimizer in conjunction
with methods for quickly approximating subgradients and risk values without needing
to worry about the optimizer permanently fixating on what it erroneously thinks
is the best point.  Now the optimizer will just keep solving the cutting plane
subproblem and will use that solution as the current iterate and best known
solution.

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eef728d2

16 Mar, 2011 3 commits

updated docs · bc487527

Davis King authored Mar 15, 2011

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bc487527

Renamed max_index_value_plus_one() (a function for working with graphs) to · d0f2eb43

Davis King authored Mar 15, 2011

max_index_plus_one() so that it uses the same name as the essentially identical
function for working with sparse vectors.

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d0f2eb43

Moved some functions for dealing with sparse vectors out of the svm_c_linear_trainer · d8e7ee4c

Davis King authored Mar 15, 2011

implementation and into the sparse_vector.h header.  These are the add_to(), subtract_from(),
and max_index_plus_one() functions.

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d8e7ee4c

15 Mar, 2011 1 commit

Added a value_type typedef to matrix_exp so it's easier to write templates · 392c7758

Davis King authored Mar 15, 2011

which operate on STL containers and matrix objects.

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392c7758

14 Mar, 2011 4 commits

Removed some old comments · 730037dc

Davis King authored Mar 13, 2011

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730037dc

Fixed a bug in the kernel_matrix() function. It didn't compile when used with · 23e169da

Davis King authored Mar 13, 2011

sparse samples which were of type std::vector<std::pair<> >.  Moreover, some of
the trainers have a dependency on kernel_matrix() so this fix makes those trainers
also work with this kind of sparse sample.

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updated docs · 2ee75d5f

Davis King authored Mar 13, 2011

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2ee75d5f

Added an is_pair template for telling if a type is a std::pair object. · 4ecdd03b
Davis King authored Mar 13, 2011
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