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https://github.com/moses-smt/mosesdecoder.git
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70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#include "Optimizer.h"
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#include <iostream>
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namespace MosesServer
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{
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using namespace std;
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Optimizer::
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Optimizer()
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{
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// signature and help strings are documentation -- the client
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// can query this information with a system.methodSignature and
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// system.methodHelp RPC.
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this->_signature = "S:S";
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this->_help = "Optimizes multi-model translation model";
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}
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void
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Optimizer::
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execute(xmlrpc_c::paramList const& paramList,
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xmlrpc_c::value * const retvalP)
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{
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#ifdef WITH_DLIB
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const params_t params = paramList.getStruct(0);
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params_t::const_iterator si;
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if ((si = params.find("model_name")) == params.end()) {
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string msg = "Missing name of model to be optimized";
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msg += " (e.g. PhraseDictionaryMultiModelCounts0)";
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throw xmlrpc_c::fault(msg, xmlrpc_c::fault::CODE_PARSE);
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}
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const string model_name = xmlrpc_c::value_string(si->second);
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if ((si = params.find("phrase_pairs")) == params.end()) {
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throw xmlrpc_c::fault("Missing list of phrase pairs",
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xmlrpc_c::fault::CODE_PARSE);
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}
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vector<pair<string, string> > phrase_pairs;
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xmlrpc_c::value_array pp_array = xmlrpc_c::value_array(si->second);
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vector<xmlrpc_c::value> ppValVec(pp_array.vectorValueValue());
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for (size_t i = 0; i < ppValVec.size(); ++i) {
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xmlrpc_c::value_array pp_array
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= xmlrpc_c::value_array(ppValVec[i]);
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vector<xmlrpc_c::value> pp(pp_array.vectorValueValue());
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string L1 = xmlrpc_c::value_string(pp[0]);
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string L2 = xmlrpc_c::value_string(pp[1]);
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phrase_pairs.push_back(make_pair(L1,L2));
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}
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// PhraseDictionaryMultiModel* pdmm
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// = (PhraseDictionaryMultiModel*) FindPhraseDictionary(model_name);
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PhraseDictionaryMultiModel* pdmm = FindPhraseDictionary(model_name);
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vector<float> weight_vector = pdmm->MinimizePerplexity(phrase_pairs);
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vector<xmlrpc_c::value> weight_vector_ret;
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for (size_t i=0; i < weight_vector.size(); i++)
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weight_vector_ret.push_back(xmlrpc_c::value_double(weight_vector[i]));
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*retvalP = xmlrpc_c::value_array(weight_vector_ret);
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#else
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string errmsg = "Error: Perplexity minimization requires dlib ";
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errmsg += "(compilation option --with-dlib)";
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std::cerr << errmsg << std::endl;
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*retvalP = xmlrpc_c::value_string(errmsg);
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#endif
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}
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}
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