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/*
* argument_reorder_model.h
*
* Created on: Dec 15, 2013
* Author: lijunhui
*/
#ifndef ARGUMENT_REORDER_MODEL_H_
#define ARGUMENT_REORDER_MODEL_H_
#include <string>
#include <vector>
#include "alignment.h"
#include "tree.h"
#include "srl_sentence.h"
// an argument item or a predicate item (the verb itself)
struct SSRLItem {
SSRLItem(const STreeItem *tree_item, std::string role)
: tree_item_(tree_item), role_(role) {}
~SSRLItem() {}
const STreeItem *tree_item_;
const std::string role_;
};
struct SPredicateItem {
SPredicateItem(const SParsedTree *tree, const SPredicate *pred)
: pred_(pred) {
vec_items_.reserve(pred->m_vecArgt.size() + 1);
for (int i = 0; i < pred->m_vecArgt.size(); i++) {
vec_items_.push_back(
new SSRLItem(pred->m_vecArgt[i]->m_pTreeItem,
std::string(pred->m_vecArgt[i]->m_pszRole)));
}
vec_items_.push_back(
new SSRLItem(tree->m_vecTerminals[pred->m_iPosition]->m_ptParent,
std::string("Pred")));
sort(vec_items_.begin(), vec_items_.end(), SortFunction);
begin_ = vec_items_[0]->tree_item_->m_iBegin;
end_ = vec_items_[vec_items_.size() - 1]->tree_item_->m_iEnd;
}
~SPredicateItem() { vec_items_.clear(); }
static bool SortFunction(SSRLItem *i, SSRLItem *j) {
return (i->tree_item_->m_iBegin < j->tree_item_->m_iBegin);
}
std::vector<SSRLItem *> vec_items_;
int begin_;
int end_;
const SPredicate *pred_;
};
struct SArgumentReorderModel {
public:
static std::string fnGetBlockOutcome(int iBegin, int iEnd,
SAlignment *pAlign) {
return pAlign->fnIsContinuous(iBegin, iEnd);
}
static void fnGetReorderType(SPredicateItem *pPredItem, SAlignment *pAlign,
std::vector<std::string> &vecStrLeftReorder,
std::vector<std::string> &vecStrRightReorder) {
std::vector<int> vecLeft, vecRight;
for (int i = 0; i < pPredItem->vec_items_.size(); i++) {
const STreeItem *pCon1 = pPredItem->vec_items_[i]->tree_item_;
int iLeft1, iRight1;
pAlign->fnGetLeftRightMost(pCon1->m_iBegin, pCon1->m_iEnd, true, iLeft1,
iRight1);
vecLeft.push_back(iLeft1);
vecRight.push_back(iRight1);
}
std::vector<int> vecLeftPosition;
fnGetRelativePosition(vecLeft, vecLeftPosition);
std::vector<int> vecRightPosition;
fnGetRelativePosition(vecRight, vecRightPosition);
vecStrLeftReorder.clear();
vecStrRightReorder.clear();
for (int i = 1; i < vecLeftPosition.size(); i++) {
std::string strOutcome;
fnGetOutcome(vecLeftPosition[i - 1], vecLeftPosition[i], strOutcome);
vecStrLeftReorder.push_back(strOutcome);
fnGetOutcome(vecRightPosition[i - 1], vecRightPosition[i], strOutcome);
vecStrRightReorder.push_back(strOutcome);
}
}
/*
* features:
* f1: (left_label, right_label, parent_label)
* f2: (left_label, right_label, parent_label, other_right_sibling_label)
* f3: (left_label, right_label, parent_label, other_left_sibling_label)
* f4: (left_label, right_label, left_head_pos)
* f5: (left_label, right_label, left_head_word)
* f6: (left_label, right_label, right_head_pos)
* f7: (left_label, right_label, right_head_word)
* f8: (left_label, right_label, left_chunk_status)
* f9: (left_label, right_label, right_chunk_status)
* f10: (left_label, parent_label)
* f11: (right_label, parent_label)
*
* f1: (left_role, right_role, predicate_term)
* f2: (left_role, right_role, predicate_term, other_right_role)
* f3: (left_role, right_role, predicate_term, other_left_role)
* f4: (left_role, right_role, left_head_pos)
* f5: (left_role, right_role, left_head_word)
* f6: (left_role, right_role, left_syntactic_label)
* f7: (left_role, right_role, right_head_pos)
* f8: (left_role, right_role, right_head_word)
* f8: (left_role, right_role, right_syntactic_label)
* f8: (left_role, right_role, left_chunk_status)
* f9: (left_role, right_role, right_chunk_status)
* f10: (left_role, right_role, left_chunk_status)
* f11: (left_role, right_role, right_chunk_status)
* f12: (left_label, parent_label)
* f13: (right_label, parent_label)
*/
static void fnGenerateFeature(const SParsedTree *pTree,
const SPredicate *pPred,
const SPredicateItem *pPredItem, int iPos,
const std::string &strBlock1,
const std::string &strBlock2,
std::ostringstream &ostr) {
SSRLItem *pSRLItem1 = pPredItem->vec_items_[iPos - 1];
SSRLItem *pSRLItem2 = pPredItem->vec_items_[iPos];
const STreeItem *pCon1 = pSRLItem1->tree_item_;
const STreeItem *pCon2 = pSRLItem2->tree_item_;
std::string left_role = pSRLItem1->role_;
std::string right_role = pSRLItem2->role_;
std::string predicate_term =
pTree->m_vecTerminals[pPred->m_iPosition]->m_pszTerm;
std::vector<std::string> vec_other_right_sibling;
for (int i = iPos + 1; i < pPredItem->vec_items_.size(); i++)
vec_other_right_sibling.push_back(
std::string(pPredItem->vec_items_[i]->role_));
if (vec_other_right_sibling.size() == 0)
vec_other_right_sibling.push_back(std::string("NULL"));
std::vector<std::string> vec_other_left_sibling;
for (int i = 0; i < iPos - 1; i++)
vec_other_right_sibling.push_back(
std::string(pPredItem->vec_items_[i]->role_));
if (vec_other_left_sibling.size() == 0)
vec_other_left_sibling.push_back(std::string("NULL"));
// generate features
// f1
ostr << "f1=" << left_role << "_" << right_role << "_" << predicate_term;
ostr << "f1=" << left_role << "_" << right_role;
// f2
for (int i = 0; i < vec_other_right_sibling.size(); i++) {
ostr << " f2=" << left_role << "_" << right_role << "_" << predicate_term
<< "_" << vec_other_right_sibling[i];
ostr << " f2=" << left_role << "_" << right_role << "_"
<< vec_other_right_sibling[i];
}
// f3
for (int i = 0; i < vec_other_left_sibling.size(); i++) {
ostr << " f3=" << left_role << "_" << right_role << "_" << predicate_term
<< "_" << vec_other_left_sibling[i];
ostr << " f3=" << left_role << "_" << right_role << "_"
<< vec_other_left_sibling[i];
}
// f4
ostr << " f4=" << left_role << "_" << right_role << "_"
<< pTree->m_vecTerminals[pCon1->m_iHeadWord]->m_ptParent->m_pszTerm;
// f5
ostr << " f5=" << left_role << "_" << right_role << "_"
<< pTree->m_vecTerminals[pCon1->m_iHeadWord]->m_pszTerm;
// f6
ostr << " f6=" << left_role << "_" << right_role << "_" << pCon2->m_pszTerm;
// f7
ostr << " f7=" << left_role << "_" << right_role << "_"
<< pTree->m_vecTerminals[pCon2->m_iHeadWord]->m_ptParent->m_pszTerm;
// f8
ostr << " f8=" << left_role << "_" << right_role << "_"
<< pTree->m_vecTerminals[pCon2->m_iHeadWord]->m_pszTerm;
// f9
ostr << " f9=" << left_role << "_" << right_role << "_" << pCon2->m_pszTerm;
// f10
ostr << " f10=" << left_role << "_" << right_role << "_" << strBlock1;
// f11
ostr << " f11=" << left_role << "_" << right_role << "_" << strBlock2;
// f12
ostr << " f12=" << left_role << "_" << predicate_term;
ostr << " f12=" << left_role;
// f13
ostr << " f13=" << right_role << "_" << predicate_term;
ostr << " f13=" << right_role;
}
private:
static void fnGetOutcome(int i1, int i2, std::string &strOutcome) {
assert(i1 != i2);
if (i1 < i2) {
if (i2 > i1 + 1)
strOutcome = std::string("DM");
else
strOutcome = std::string("M");
} else {
if (i1 > i2 + 1)
strOutcome = std::string("DS");
else
strOutcome = std::string("S");
}
}
static void fnGetRelativePosition(const std::vector<int> &vecLeft,
std::vector<int> &vecPosition) {
vecPosition.clear();
std::vector<float> vec;
for (int i = 0; i < vecLeft.size(); i++) {
if (vecLeft[i] == -1) {
if (i == 0)
vec.push_back(-1);
else
vec.push_back(vecLeft[i - 1] + 0.1);
} else
vec.push_back(vecLeft[i]);
}
for (int i = 0; i < vecLeft.size(); i++) {
int count = 0;
for (int j = 0; j < vecLeft.size(); j++) {
if (j == i) continue;
if (vec[j] < vec[i]) {
count++;
} else if (vec[j] == vec[i] && j < i) {
count++;
}
}
vecPosition.push_back(count);
}
}
};
#endif /* ARGUMENT_REORDER_MODEL_H_ */
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