diff options
Diffstat (limited to 'vowpalwabbit/kernel_svm.cc')
| -rw-r--r-- | vowpalwabbit/kernel_svm.cc | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/vowpalwabbit/kernel_svm.cc b/vowpalwabbit/kernel_svm.cc index 9a88f17e..ed917cda 100644 --- a/vowpalwabbit/kernel_svm.cc +++ b/vowpalwabbit/kernel_svm.cc @@ -648,7 +648,7 @@ namespace KSVM else { for(size_t i = 0;i < params.pool_pos;i++) { - float queryp = 2.0f/(1.0f + expf((float)(params.active_c*fabs(scores[i]))*pow(params.pool[i]->ex.example_counter,0.5f))); + float queryp = 2.0f/(1.0f + expf((float)(params.active_c*fabs(scores[i]))*(float)pow(params.pool[i]->ex.example_counter,0.5f))); if(rand() < queryp) { svm_example* fec = params.pool[i]; fec->ex.l.simple.weight *= 1/queryp; @@ -790,13 +790,14 @@ namespace KSVM cerr<<"Done with finish \n"; } - - LEARNER::base_learner* setup(vw &all, po::variables_map& vm) { - po::options_description desc("KSVM options"); - desc.add_options() + LEARNER::base_learner* setup(vw &all) { + new_options(all, "KSVM options") + ("ksvm", "kernel svm"); + if (missing_required(all)) return NULL; + new_options(all) ("reprocess", po::value<size_t>(), "number of reprocess steps for LASVM") - ("active", "do active learning") - ("active_c", po::value<double>(), "parameter for query prob") + // ("active", "do active learning") + //("active_c", po::value<double>(), "parameter for query prob") ("pool_greedy", "use greedy selection on mini pools") ("para_active", "do parallel active learning") ("pool_size", po::value<size_t>(), "size of pools for active learning") @@ -805,8 +806,9 @@ namespace KSVM ("bandwidth", po::value<float>(), "bandwidth of rbf kernel") ("degree", po::value<int>(), "degree of poly kernel") ("lambda", po::value<double>(), "saving regularization for test time"); - vm = add_options(all, desc); + add_options(all); + po::variables_map& vm = all.vm; string loss_function = "hinge"; float loss_parameter = 0.0; delete all.loss; |