public void Add(string ngram)
{
if (ngram == null)
{
return;
}
var nonDiacritics = stringRoutines.MyDiacriticsRemover(ngram);
foreach (var word in nonDiacritics.Split(' '))
{
var ngrams = cache.Find(word);
if (ngrams != null)
{
ngrams.Add(ngram);
}
else
{
cache.Add(word, new List <string> {
ngram
});
}
}
if (isSetSize)
{
CheckSize(ngram);
}
}
private void LoadUnigrams(UniGramFile uniGramFiles, List <List <string> > ngramLists)
{
Ngram ngram;
string lineWordsFormated;
while ((ngram = uniGramFiles.Next()) != null)
{
lineWordsFormated = string.Join(" ", ngram.Words);
foreach (string w in ngram.Words)
{
string nonDiacriticsWord = StringRoutines.MyDiacriticsRemover(w);
List <string> foundList = trie.Find(nonDiacriticsWord);
if (foundList == null)
{
var l = new List <string> {
lineWordsFormated
};
ngramLists.Add(l);
trie.Add(nonDiacriticsWord, l);
}
else
{
foundList.Add(lineWordsFormated);
}
}
}
}
private void OptimizedLoad(List <NgramFile> otherNgramFiles)
{
var maxAllowedConut = new int[5] {
0, 702, 702, 352, 107
};
// load 1, 350, 245, 105 (1 2 3 4)
foreach (var file in otherNgramFiles)
{
Ngram ngram;
string lineWordsFormated;
int size = file.Next().Words.Length;
file.ReOpen();
while ((ngram = file.Next()) != null)
{
lineWordsFormated = string.Join(" ", ngram.Words);
foreach (string w in ngram.Words)
{
string nonDiacriticsWord = StringRoutines.MyDiacriticsRemover(w);
List <string> foundList = trie.Find(nonDiacriticsWord);
if (foundList != null && foundList.Count > 1 && foundList.Count < maxAllowedConut[size])
{
foundList.Add(lineWordsFormated);
}
}
}
Console.WriteLine(" 4 3 2");
}
}
internal void Load(NgramFile file)
{
Ngram ngram;
string lineWordsFormated;
while ((ngram = file.Next()) != null)
{
lineWordsFormated = string.Join(" ", ngram.Words);
foreach (string w in ngram.Words)
{
string nonDiacriticsWord = StringRoutines.MyDiacriticsRemover(w);
List <string> foundList = trie.Find(nonDiacriticsWord);
if (foundList == null)
{
trie.Add(nonDiacriticsWord, new List <string> {
lineWordsFormated
});
}
else
{
foundList.Add(lineWordsFormated);
}
}
}
}
private List <FileNgram> GetFileNgrams(NgramFile file, int from, int to)
{
var ngrams = new List <FileNgram>();
Ngram ng;
int i = 1;
while (i < from)
{
if ((ng = file.Next()) == null)
{
return(ngrams);
}
i++;
}
while (i <= to)
{
if ((ng = file.Next()) != null)
{
foreach (var w in ng.Words)
{
int id = idTrie.Find(StringRoutines.MyDiacriticsRemover(w));
ngrams.Add(new FileNgram(ng.ToString(), ng.Frequency, id));
}
i++;
}
else
{
break;
}
}
return(ngrams);
}
public void MyDiacriticsRemover_WordWithDiacritics_ReturnsWithoutDiacritics()
{
string input = "áäčďéíĺľňóôŕšťúýžěřůäöüẞß abcdefghijklmnopqrstuvwxyz ,./;'[]{} 1234567890 ~`!@#$%^&*()+_-";
string expected = "aacdeillnoorstuyzeruaouẞß abcdefghijklmnopqrstuvwxyz ,./;'[]{} 1234567890 ~`!@#$%^&*()+_-";
string result = StringRoutines.MyDiacriticsRemover(input);
Assert.AreEqual(expected, result);
}
internal static void Test(string path, DiacriticsReconstructor dr, bool writeStatistics = true)
{
long bytes = GC.GetTotalMemory(true);
Console.WriteLine($"Memory (bytes): {bytes}");
if (writeStatistics)
{
statisticsPath = $"{TextFile.FileName(path)}_STATISTICS{TextFile.FileExtension(path)}";
File.WriteAllText(statisticsPath, $"Memory (bytes): {bytes}\n");
}
Console.WriteLine($"Reading {path}");
string originalText = File.OpenText(path).ReadToEnd();
Console.WriteLine("Removing diacritics...");
string textWithoutDiacritics = StringRoutines.MyDiacriticsRemover(originalText);
File.WriteAllText($"{TextFile.FileName(path)}_WITHOUT-DIACRITICS{TextFile.FileExtension(path)}", textWithoutDiacritics);
Console.WriteLine("Reconstructing...");
var sw = Stopwatch.StartNew();
string reconstructedText = dr.Reconstruct(textWithoutDiacritics);
sw.Stop();
string ngramsStat = dr.GetStatistic();
Console.Write(ngramsStat);
if (writeStatistics)
{
File.AppendAllText(statisticsPath, ngramsStat);
}
dr.EraseStatistic();
Console.WriteLine($"Elapsed (milliseconds): {sw.Elapsed.TotalMilliseconds}");
if (writeStatistics)
{
File.AppendAllText(statisticsPath, $"Elapsed (milliseconds): {sw.Elapsed.TotalMilliseconds}\n");
}
Console.WriteLine("Done.");
File.WriteAllText($"{TextFile.FileName(path)}_RENCOSTRUCTED{TextFile.FileExtension(path)}", reconstructedText);
Console.WriteLine("Testing...");
FindMistakes(originalText, reconstructedText, path, writeStatistics);
Console.WriteLine("Done.\n");
}
private List <FileNgram> DivideFileBy(NgramFile file, int count, ref bool endOfFile)
{
var ret = new List <FileNgram>();
Ngram ng;
int i = 0;
while ((ng = file.Next()) != null && i++ < count)
{
foreach (var w in ng.Words)
{
int id = idTrie.Find(StringRoutines.MyDiacriticsRemover(w));
if (id == 0)
{
throw new Exception("Word '" + w + "' is not in idTrie!!!");
}
ret.Add(new FileNgram(ng.ToString(), ng.Frequency, id));
}
}
endOfFile = ng == null;
Console.WriteLine("part of file loaded...");
return(ret);
}
private void CheckSize(string ngram)
{
priorityNgrams.Remove(ngram);
priorityNgrams.Add(ngram);
if (priorityNgrams.Count > size)
{
var ngramToRemove = StringRoutines.MyDiacriticsRemover(priorityNgrams[0]);
foreach (var word in ngramToRemove.Split(' '))
{
var listRemoveFrom = cache.Find(word);
if (listRemoveFrom == null)
{
continue;
}
listRemoveFrom.Remove(priorityNgrams[0]);
if (listRemoveFrom.Count == 0)
{
cache.Remove(word);
}
}
priorityNgrams.RemoveAt(0);
}
}
private void InsertWordsSqlBulkCopy(UniGramFile file, DiacriticsDBEntities db)
{
var dtWords = new DataTable();
dtWords.Columns.Add("Id");
dtWords.Columns.Add("Value");
file.ReOpen();
Ngram ng;
int id = 0;
var counter = 0;
while ((ng = file.Next()) != null)
{
string nonDiacriticsW = StringRoutines.MyDiacriticsRemover(ng.ToString());
dtWords.Rows.Add(++id, nonDiacriticsW);
if (++counter % 100000 == 0)
{
Console.WriteLine(counter + " words prepared for insertion.");
}
}
InsertIntoDb(dtWords, db, "dbo.Words");
}
private void InsertUnigramsSqlBulkCopy(UniGramFile file, DiacriticsDBEntities db)
{
var dtUniGrams = new DataTable();
dtUniGrams.Columns.Add("Word1");
dtUniGrams.Columns.Add("WordId");
dtUniGrams.Columns.Add("Id");
dtUniGrams.Columns.Add("Frequency");
file.ReOpen();
Ngram ng;
int wordId;
var uniGramId = 0;
var counter = 0;
while ((ng = file.Next()) != null)
{
string w = ng.ToString();
string nonDiacriticsW = StringRoutines.MyDiacriticsRemover(w);
wordId = wordTrie.Find(nonDiacriticsW);
if (wordId != 0)
{
dtUniGrams.Rows.Add(w, wordId, ++uniGramId, ng.Frequency);
}
else
{
throw new Exception("Word '" + nonDiacriticsW + "' is not present in Trie!");
}
if (++counter % 10000 == 0)
{
Console.WriteLine(counter + " unigrams prepared for insertion.");
}
}
InsertIntoDb(dtUniGrams, db, "dbo.UniGramEntities");
}
private void LoadUniGramsEF(NgramFile file, DiacriticsDBEntities db)
{
file.ReOpen();
Ngram ngram;
Word word;
int i = 0;
while ((ngram = file.Next()) != null)
{
foreach (var w in ngram.Words)
{
string nonDiacriticsW = StringRoutines.MyDiacriticsRemover(w);
word = db.Words.Where(a => a.Value == nonDiacriticsW).SingleOrDefault();
if (word == null)
{
word = new Word()
{
Value = nonDiacriticsW
};
db.Words.Add(word);
}
db.UniGramEntities.Add(new UniGramEntity()
{
Frequency = ngram.Frequency,
Word = word,
WordId = word.Id,
Word1 = w
});
}
if (++i % 100 == 0)
{
db.SaveChanges();
Console.WriteLine(i);
}
}
}
private void LoadUniGramsSqlCmd(NgramFile file, DiacriticsDBEntities db)
{
var sqlSelect = new SqlCommand("SELECT * FROM dbo.Words WHERE Value = @value", db.Database.Connection as SqlConnection);
sqlSelect.CommandType = CommandType.Text;
sqlSelect.Parameters.Add("value", SqlDbType.NVarChar);
var sqlInsertWord = new SqlCommand("INSERT INTO dbo.Words (Value) VALUES (@value)", db.Database.Connection as SqlConnection);
sqlInsertWord.CommandType = CommandType.Text;
sqlInsertWord.Parameters.Add("value", SqlDbType.NVarChar);
var sqlInsertUniGram = new SqlCommand("INSERT INTO dbo.UniGramEntities (Word1, WordId, Frequency) VALUES (@word1, @wordId, @frequency)",
db.Database.Connection as SqlConnection);
sqlInsertUniGram.CommandType = CommandType.Text;
sqlInsertUniGram.Parameters.Add("word1", SqlDbType.NVarChar);
sqlInsertUniGram.Parameters.Add("wordId", SqlDbType.Int);
sqlInsertUniGram.Parameters.Add("frequency", SqlDbType.Int);
db.Database.Connection.Open();
file.ReOpen();
Ngram ngram;
int i = 0;
while ((ngram = file.Next()) != null)
{
foreach (var w in ngram.Words)
{
string nonDiacriticsW = StringRoutines.MyDiacriticsRemover(w);
int id = -1;
bool wasIserted;
do
{
wasIserted = false;
sqlSelect.Parameters["value"].Value = nonDiacriticsW;
SqlDataReader reader = sqlSelect.ExecuteReader();
if (reader.Read())
{
id = (int)reader[0];
}
else
{
sqlInsertWord.Parameters["value"].Value = nonDiacriticsW;
sqlInsertWord.ExecuteNonQuery();
wasIserted = true;
}
reader.Close();
} while (wasIserted);
sqlInsertUniGram.Parameters["word1"].Value = w;
sqlInsertUniGram.Parameters["wordId"].Value = id;
sqlInsertUniGram.Parameters["frequency"].Value = ngram.Frequency;
sqlInsertUniGram.ExecuteNonQuery();
}
if (++i % 10000 == 0)
{
Console.WriteLine(i);
}
}
db.Database.Connection.Close();
sqlSelect.Dispose();
sqlInsertWord.Dispose();
sqlInsertUniGram.Dispose();
}
protected bool MatchesUp(string word, string[] ngram, string[] nthBefore, string[] nthAfter, ref string result)
{
string[] ngramWordsDiacritics = ngram;
string[] ngramWords = new string[ngram.Length];
for (int i = 0; i < ngram.Length; i++)
{
ngramWords[i] = StringRoutines.MyDiacriticsRemover(ngram[i]);
}
bool matches;
int res;
for (int i = 0; i < ngramWords.Length; i++)
{
// find {word} in {ngramWords} (multiple matches can by found)
if (ngramWords[i] == word)
{
res = i;
matches = true;
// test {ngramWords} with {nthBefore} and {nthAfter}
for (int j = 0; j < nthBefore.Length; j++)
{
if ((i - j - 1) >= 0)
{
if (nthBefore[j] != ngramWords[i - j - 1])
{
matches = false;
break;
}
}
else
{
break;
}
}
if (matches)
{
for (int j = 0; j < nthAfter.Length; j++)
{
if ((i + j + 1) < ngramWords.Length)
{
if (nthAfter[j] != ngramWords[i + j + 1])
{
matches = false;
break;
}
}
else
{
break;
}
}
}
if (matches)
{
result = ngramWordsDiacritics[res];
return(true);
}
}
}
return(false);
}
private string Normalize(string word)
{
return(StringRoutines.MyDiacriticsRemover(word).ToLower());
}