181 lines
6.2 KiB
C++
181 lines
6.2 KiB
C++
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/*********************************************************************************************
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Description: 处理pubmed生成的txt文件,将处理结果放到mat文件中
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Copyright : All right reserved by ZheYuan.BJ
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Author : Zhang Zhonghai
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Date : 2023/09/18
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***********************************************************************************************/
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <string>
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#include <algorithm>
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#include <unordered_map>
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#include <mat.h>
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#include "common.h"
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#include "CommonLib/matlab_io.h"
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using namespace std;
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/* 将结果写入mat文件 */
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/* 将数据写入mat文件中,用给定的名称命名 */
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bool SavePubmed(const string& matPath,
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const vector<string> &vTgName,
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const vector<unordered_map<string, string> >& vumPaperTagVal)
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{
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MATFile* pMatFile = matOpen(matPath.c_str(), "r"); //打开.mat文件
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if (pMatFile == nullptr) {
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cerr << "filePath is error! " << matPath << endl;
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return false;
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}
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vector<const char*> vTgChars;
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for (auto strTg : vTgName) {
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vTgChars.push_back(strTg.c_str());
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}
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// 创建结构体数据
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mxArray* mxStruct = mxCreateStructMatrix(1, 1, vTgName.size(), vTgChars.data());
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return true;
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}
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/*
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pubmed txt文件中包含多个文章的摘要信息,每个信息最前边有一个tag,每个tag对应的信息可能有一行,也可能多行,每个文章中间由一个空行隔开
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1. 读取预先提取的pubmed tags, 并将tags中的'-'和' '字符去掉,只留下纯字符串做tag
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2. 读取pubmed txt文件, 对所有文献根据tag进行拆分,同一个文献中,合并同一个tag的所有内容,空格隔开
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3. 去除一些冗余等内容, 将title和abstract合并,赋值给abstract
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4. 将结果写入mat文件
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*/
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void ProcessPubmedTxt(int argc, const char** argv) {
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// argv 1.pubmed tag.mat文件; 2.pubmed article.txt文件; 3.pubmed out.mat输出文件
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//
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// cout << argc << '\t' << argv[1] << endl;
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int rowNum, colNum;
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vector<string> vTg;
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vector<string> vTgName;
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// unordered_map<string, vector<string> > umTagVal;
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vector<unordered_map<string, string> > vumPaperTagVal;
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unordered_map<string, string> umFullTagToTag; // 完整tag与tag的映射,如“PMID- ”:“PMID”
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/* 读取pubmed tags */
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ReadMtxString(argv[1], "tg", vTg, &rowNum, &colNum);
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/* 1. 去掉tags里的'-'和' '字符,得到纯净的tag */
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vTgName = vTg;
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for (int i = 0; i < vTg.size(); ++i) {
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// cout << vTg[i] << '\t';
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int pos = 0;
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for (int j = 0; j < vTg[i].size(); ++j) {
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if (vTg[i][j] != ' ' && vTg[i][j] != '-') { // 去掉tag中的空格和'-'字符,生成tag name
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vTgName[i][pos++] = vTg[i][j];
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}
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}
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vTgName[i].resize(pos);
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umFullTagToTag[vTg[i]] = vTgName[i];
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// cout << vTg[i].size() << '\t' << vTgName[i].size() << endl;
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}
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/* 2. 读取pubmed txt文件,先读入后处理 */
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ifstream ifsPubmedTxt(argv[2]);
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vector<string> vStrPubmedTxt;
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vector<string> vLineTag;
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vector<int> vPaperStartIdx;
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string blankTag = " "; // 5个空格
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string strLine;
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string fullTag;
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int curPos = 0;
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vPaperStartIdx.push_back(curPos); // 添加初始索引
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const int FULL_TAG_LEN = 5;
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while (getline(ifsPubmedTxt, strLine)) { // 读取内容时候去掉了行尾的换行符
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while (strLine.back() == ' ') strLine.pop_back(); // 去掉行尾的空格
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if (strLine.size() == 0) { // 新的paper
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vPaperStartIdx.push_back(curPos);
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continue;
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}
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fullTag = strLine.substr(0, 5);
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if (fullTag == blankTag) { // 这一行的内容还是属于上一个tag的
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string& lastTagConteng = vStrPubmedTxt.back();
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lastTagConteng.append(strLine.substr(FULL_TAG_LEN)); // 最前边包含了一个空格
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}
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else {
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vStrPubmedTxt.push_back(strLine.substr(FULL_TAG_LEN));
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vLineTag.push_back(fullTag);
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curPos++;
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}
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// cout << strLine << endl;
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}
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// cout << vStrPubmedTxt.size() << endl;
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vPaperStartIdx.push_back(curPos); // 比文章多1,最后一个记录结束位置
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/* 处理每一篇文章 */
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ofstream testOfs("pubmed_test-1.txt");
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for (int i = 0; i < vPaperStartIdx.size() - 1; ++i) {
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int startIdx = vPaperStartIdx[i];
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int endIdx = vPaperStartIdx[i + 1];
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unordered_map<string, string> umTagContent;
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for (int tgIdx = 0; tgIdx < vTgName.size(); ++tgIdx) {
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umTagContent[vTgName[tgIdx]] = ""; // 对每一个tag,设置一个新的string
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}
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for (int idx = startIdx; idx < endIdx; ++idx) { // 遍历当前文章的每一个tag内容
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string& fullTag = vLineTag[idx];
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auto tagItr = umFullTagToTag.find(fullTag);
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if (tagItr != umFullTagToTag.end()) { // 找到tag了
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const string& tag = tagItr->second;
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string& tagContent = umTagContent[tag];
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tagContent.append(vStrPubmedTxt[idx]);
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}
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}
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vumPaperTagVal.push_back(umTagContent);
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}
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cout << "文件个数:" << vumPaperTagVal.size() << endl;
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/* 去除没有摘要的文章 */
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const string abstractTag = "AB";
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for (auto itr = vumPaperTagVal.begin(); itr != vumPaperTagVal.end(); ) {
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if ((*itr)[abstractTag].size() == 0) {
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itr = vumPaperTagVal.erase(itr);
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}
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else {
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itr++;
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}
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}
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/* 根据PMID,去除冗余 */
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unordered_map<string, int> umPMID;
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const string pmidTag = "PMID";
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for (auto itr = vumPaperTagVal.begin(); itr != vumPaperTagVal.end(); ) {
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if (umPMID.find((*itr)[pmidTag]) != umPMID.end()) {
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cout << "duplicate " << (*itr)[pmidTag] << endl;
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itr = vumPaperTagVal.erase(itr);
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}
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else {
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umPMID[(*itr)[pmidTag]] = 1;
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itr++;
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}
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}
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/* 将title和abstract合并,赋值给abstract */
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const string titleTag = "TI";
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for (auto itr = vumPaperTagVal.begin(); itr != vumPaperTagVal.end(); itr++) {
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string& abstractStr = (*itr)[abstractTag];
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abstractStr = (*itr)[titleTag] + " " + abstractStr; // 可能会有性能损失,不过影响不大
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}
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//for (int tgIdx = 0; tgIdx < vTgName.size(); ++tgIdx) {
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// for (int i = 0; i < vumPaperTagVal.size(); ++i) {
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// testOfs << vumPaperTagVal[i][vTgName[tgIdx]] << endl;
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// }
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//}
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for (int i = 0; i < vumPaperTagVal.size(); ++i) {
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testOfs << vumPaperTagVal[i][abstractTag] << endl;
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}
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testOfs.close();
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cout << "文件个数:" << vumPaperTagVal.size() << endl;
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// for (auto num : vPaperStartIdx) cout << num << endl;
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ifsPubmedTxt.close();
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/* 将处理后的数据写入mat文件,mat中的变量名称分别为Tx和abs1 */
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SavePubmed(argv[3], vTgName, vumPaperTagVal);
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}
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