Bagaimana untuk menggunakan C++ untuk pemprosesan bahasa semula jadi dan analisis teks?

sudo apt install libboost-regex-dev libicu-dev libpugixml-dev

#include <boost/algorithm/string/replace.hpp>
#include <iostream>
#include <map>

std::map<std::string, std::string> stemmer_map = {
    {"ing", ""},
    {"ed", ""},
    {"es", ""},
    {"s", ""}
};

std::string stem(const std::string& word) {
    std::string stemmed_word = word;
    for (auto& rule : stemmer_map) {
        boost::replace_all(stemmed_word, rule.first, rule.second);
    }
    return stemmed_word;
}

#include <map>
#include <string>
#include <vector>

std::map<std::string, int> create_bag_of_words(const std::vector<std::string>& tokens) {
    std::map<std::string, int> bag_of_words;
    for (const auto& token : tokens) {
        std::string stemmed_token = stem(token);
        bag_of_words[stemmed_token]++;
    }
    return bag_of_words;
}

#include <iostream>
#include <vector>

std::vector<std::string> tokenize(const std::string& text) {
    // 将文本按空格和句点分词
    std::vector<std::string> tokens;
    std::istringstream iss(text);
    std::string token;
    while (iss >> token) {
        tokens.push_back(token);
    }
    return tokens;
}

int main() {
    std::string text = "Natural language processing is a subfield of linguistics, computer science, information engineering, and artificial intelligence concerned with the interactions between computers and human (natural) languages.";

    // 分词并词干化
    std::vector<std::string> tokens = tokenize(text);
    for (auto& token : tokens) {
        std::cout << stem(token) << " ";
    }
    std::cout << std::endl;

    // 创建词袋模型
    std::map<std::string, int> bag_of_words = create_bag_of_words(tokens);
    for (const auto& [word, count] : bag_of_words) {
        std::cout << word << ": " << count << std::endl;
    }
}