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 /parse_regressor.cc | |
| parent | dc0ad64407c464dc00046a1c83b36fda086ff391 (diff) | |
commit before modifying for differential predictions. currently loss eventually blows up
Diffstat (limited to 'parse_regressor.cc')
| -rw-r--r-- | parse_regressor.cc | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/parse_regressor.cc b/parse_regressor.cc index 8fe3911d..ff05a04d 100644 --- a/parse_regressor.cc +++ b/parse_regressor.cc @@ -15,7 +15,7 @@ using namespace std; #include "loss_functions.h" #include "global_data.h" -void initialize_regressor(regressor &r) +void initialize_regressor(regressor &r, bool random) { size_t length = ((size_t)1) << global.num_bits; global.thread_mask = (length >> global.thread_bits) - 1; @@ -24,6 +24,9 @@ void initialize_regressor(regressor &r) for (size_t i = 0; i < num_threads; i++) { r.weight_vectors[i] = (weight *)calloc(length/num_threads, sizeof(weight)); + if (random) + for (size_t j = 0; j < length/num_threads; j++) + r.weight_vectors[i][j] = drand48()/10 - 0.05; if (r.weight_vectors[i] == NULL) { cerr << global.program_name << ": Failed to allocate weight array: try decreasing -b <bits>" << endl; @@ -52,7 +55,11 @@ void parse_regressor_args(po::variables_map& vm, regressor& r, string& final_reg numbits. */ bool initialized = false; - + + bool random_reg = false; + if (vm.count("random_regressor")) + random_reg = true; + for (size_t i = 0; i < regs.size(); i++) { ifstream regressor(regs[i].c_str()); @@ -109,7 +116,7 @@ void parse_regressor_args(po::variables_map& vm, regressor& r, string& final_reg if (!initialized) { global.pairs = local_pairs; - initialize_regressor(r); + initialize_regressor(r, random_reg); } else if (local_pairs != global.pairs) @@ -158,7 +165,7 @@ void parse_regressor_args(po::variables_map& vm, regressor& r, string& final_reg if(vm.count("noop") || vm.count("sendto")) r.weight_vectors = NULL; else - initialize_regressor(r); + initialize_regressor(r, random_reg); } } |