diff options
| author | Jacob Hofman <hofman@research-mm10.corp.sp1.yahoo.com> | 2010-09-22 23:57:57 +0400 |
|---|---|---|
| committer | Jacob Hofman <hofman@research-mm10.corp.sp1.yahoo.com> | 2010-09-22 23:57:57 +0400 |
| commit | 514311c9f089b20c2cf6ac22e823058fd23138ba (patch) | |
| tree | c5d147f1ccd8eb7dfe96fea0916e3d69653a6200 /sparse_dense.cc | |
| parent | dc0ad64407c464dc00046a1c83b36fda086ff391 (diff) | |
commit before modifying for differential predictions. currently loss eventually blows up
Diffstat (limited to 'sparse_dense.cc')
| -rw-r--r-- | sparse_dense.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sparse_dense.cc b/sparse_dense.cc index fe2b1cc6..7320b865 100644 --- a/sparse_dense.cc +++ b/sparse_dense.cc @@ -23,6 +23,12 @@ float sd_offset_add(weight* weights, size_t mask, feature* begin, feature* end, return ret; } +void sd_offset_update(weight* weights, size_t mask, feature* begin, feature* end, size_t offset, float update) +{ + for (feature* f = begin; f!= end; f++) + weights[(f->weight_index + offset) & mask] += f->x * update; +} + void quadratic(v_array<feature> &f, const v_array<feature> &first_part, const v_array<feature> &second_part, size_t thread_mask) { |