OrgLion-ML
/
dlib
mirror of https://github.com/davisking/dlib.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Fixed a bug in randomize_samples(). It forced each element of the input arrays 

to move to a new position but was random amongst all permutations with such
moves.  However, this isn't really fully random so this function has been fixed
so it does exactly what the spec says it should.
This commit is contained in:
Davis King 2014-02-22 13:04:44 -05:00
parent 6d32e8c804
commit ea60f62286
1 changed files with 12 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
dlib/svm/svm.h
View File

@ -954,11 +954,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t(idx), t(n));
@ -996,11 +993,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t[idx], t[n]);
@ -1055,11 +1049,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t(idx), t(n));
@ -1093,11 +1084,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t[idx], t[n]);
@ -1144,11 +1132,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t(idx), t(n));
@ -1171,11 +1156,8 @@ namespace dlib
long n = t.size()-1;
while (n > 0)
{
// put a random integer into idx
unsigned long idx = r.get_random_32bit_number();
// make idx be less than n
idx %= n;
// pick a random index to swap into t[n]
const unsigned long idx = r.get_random_32bit_number()%(n+1);
// swap our randomly selected index into the n position
exchange(t[idx], t[n]);