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#include "ff_wordset.h"
#include "hg.h"
#include "fdict.h"
#include "filelib.h"
#include <boost/algorithm/string.hpp>
#include <sstream>
#include <iostream>
using namespace std;
void WordSet::parseArgs(const string& args, string* featName, string* vocabFile, bool* oovMode) {
vector<string> toks(10);
boost::split(toks, args, boost::is_any_of(" "));
*oovMode = false;
// skip initial feature name
for(vector<string>::const_iterator it = toks.begin(); it != toks.end(); ++it) {
if(*it == "-v") {
*vocabFile = *++it; // copy
} else if(*it == "-N") {
*featName = *++it;
} else if(*it == "--oov") {
*oovMode = true;
} else {
cerr << "Unrecognized argument: " << *it << endl;
exit(1);
}
}
if(*featName == "") {
cerr << "featName (-N) not specified for WordSet" << endl;
exit(1);
}
if(*vocabFile == "") {
cerr << "vocabFile (-v) not specified for WordSet" << endl;
exit(1);
}
}
void WordSet::loadVocab(const string& vocabFile, unordered_set<WordID>* vocab) {
ReadFile rf(vocabFile);
if (!rf) {
cerr << "Unable to open file: " << vocabFile;
abort();
}
string line;
while (getline(*rf.stream(), line)) {
boost::trim(line);
if(line.empty()) continue;
WordID vocabId = TD::Convert(line);
vocab->insert(vocabId);
}
}
void WordSet::TraversalFeaturesImpl(const SentenceMetadata& /*smeta*/ ,
const Hypergraph::Edge& edge,
const vector<const void*>& /* ant_contexts */,
SparseVector<double>* features,
SparseVector<double>* /* estimated_features */,
void* /* context */) const {
double addScore = 0.0;
for(vector<WordID>::const_iterator it = edge.rule_->e_.begin(); it != edge.rule_->e_.end(); ++it) {
bool inVocab = (vocab_.find(*it) != vocab_.end());
if(oovMode_ && !inVocab) {
addScore += 1.0;
} else if(!oovMode_ && inVocab) {
addScore += 1.0;
}
}
features->set_value(fid_, addScore);
}
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