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-rw-r--r--klm/lm/ngram_query.cc72
1 files changed, 72 insertions, 0 deletions
diff --git a/klm/lm/ngram_query.cc b/klm/lm/ngram_query.cc
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+++ b/klm/lm/ngram_query.cc
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+#include "lm/ngram.hh"
+
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <string>
+
+#include <sys/resource.h>
+#include <sys/time.h>
+
+float FloatSec(const struct timeval &tv) {
+ return static_cast<float>(tv.tv_sec) + (static_cast<float>(tv.tv_usec) / 1000000000.0);
+}
+
+void PrintUsage(const char *message) {
+ struct rusage usage;
+ if (getrusage(RUSAGE_SELF, &usage)) {
+ perror("getrusage");
+ return;
+ }
+ std::cerr << message;
+ std::cerr << "user\t" << FloatSec(usage.ru_utime) << "\nsys\t" << FloatSec(usage.ru_stime) << '\n';
+
+ // Linux doesn't set memory usage :-(.
+ std::ifstream status("/proc/self/status", std::ios::in);
+ std::string line;
+ while (getline(status, line)) {
+ if (!strncmp(line.c_str(), "VmRSS:\t", 7)) {
+ std::cerr << "rss " << (line.c_str() + 7) << '\n';
+ break;
+ }
+ }
+}
+
+template <class Model> void Query(const Model &model) {
+ PrintUsage("Loading statistics:\n");
+ typename Model::State state, out;
+ lm::FullScoreReturn ret;
+ std::string word;
+
+ while (std::cin) {
+ state = model.BeginSentenceState();
+ float total = 0.0;
+ bool got = false;
+ while (std::cin >> word) {
+ got = true;
+ ret = model.FullScore(state, model.GetVocabulary().Index(word), out);
+ total += ret.prob;
+ std::cout << word << ' ' << static_cast<unsigned int>(ret.ngram_length) << ' ' << ret.prob << ' ';
+ state = out;
+ if (std::cin.get() == '\n') break;
+ }
+ if (!got && !std::cin) break;
+ ret = model.FullScore(state, model.GetVocabulary().EndSentence(), out);
+ total += ret.prob;
+ std::cout << "</s> " << static_cast<unsigned int>(ret.ngram_length) << ' ' << ret.prob << ' ';
+ std::cout << "Total: " << total << '\n';
+ }
+ PrintUsage("After queries:\n");
+}
+
+int main(int argc, char *argv[]) {
+ if (argc < 2) {
+ std::cerr << "Pass language model name." << std::endl;
+ return 0;
+ }
+ {
+ lm::ngram::Model ngram(argv[1]);
+ Query(ngram);
+ }
+ PrintUsage("Total time including destruction:\n");
+}