public static double LinkFrequency(string data)
{
string[] prefixes =
{
"http://", "https", "www."
};
return(Convert.ToDouble(PrefixFrequency(prefixes, data)) / ContentExtraction.Words(data).Length);
}
public static double AttributionFrequency(string data)
{
string[] tags =
{
"[1]", "[2]", "[3]", "[4]", "[5]", "[6]", "[7]", "[8]", "[9]"
};
return(Convert.ToDouble(SuffixFrequency(tags, data)) /
ContentExtraction.Words(data).Length);
}
public static double ConjunctionFrequency(string data)
{
string[] conjunctions =
{
"and", "but", "after", "when", "as", "because", "if", "what", "where",
"which", "how", "than", "or", "so", "before", "since", "while",
"although", "though", "who", "whose"
};
return(Convert.ToDouble(Frequency(conjunctions, data)) / ContentExtraction.Words(data).Length);
}
public static double DeterminerFrequency(string data)
{
string[] determiners =
{
"the", "some", "this", "that", "every", "all", "both", "one",
"first", "other", "next", "many", "much", "more", "most",
"several", "no", "a", "an", "any", "each", "half", "twice",
"two", "second", "another", "last", "few", "little", "less",
"least", "own"
};
return(Convert.ToDouble(Frequency(determiners, data)) / ContentExtraction.Words(data).Length);
}
public static double PrepositionFrequency(string data)
{
string[] prepositions =
{
"about", "across", "against", "along", "around",
"at", "behind", "beside", "besides", "by", "despite",
"down", "during", "for", "from", "in", "inside", "into",
"near", "of", "off", "on", "onto", "over", "through",
"to", "toward", "with", "within", "without"
};
return(Convert.ToDouble(Frequency(prepositions, data)) / ContentExtraction.Words(data).Length);
}
public static double PronounFrequency(string data)
{
string[] pronouns =
{
"I", "you", "he", "me", "her", "him", "my", "mine", "her",
"hers", "his", "myself", "himself", "herself", "anything",
"everything", "anyone", "everyone", "ones", "such", "it",
"we", "they", "us", "them", "our", "ours", "their", "theirs",
"itself", "ourselves", "themselves", "something", "nothing",
"someone"
};
return(Convert.ToDouble(Frequency(pronouns, data)) / ContentExtraction.Words(data).Length);
}
private static int Frequency(string[] words, string data)
{
int count = 0;
string[] corpus_words = ContentExtraction.Words(data);
foreach (string word in corpus_words)
{
if (words.Contains(word))
{
count++;
}
}
return(count);
}
public static double WordsOfLength(int min, int max, string data)
{
string[] words = ContentExtraction.Words(data);
int count = 0;
foreach (string word in words)
{
if (word.Length >= min && word.Length <= max)
{
count++;
}
}
return((double)count / ContentExtraction.Words(data).Length);
}
public static double WordsPerSentence(string data)
{
string[] sentences = ContentExtraction.Sentences(data);
if (sentences.Length == 0)
{
return(0);
}
int word_count = 0;
foreach (string sentence in sentences)
{
word_count += ContentExtraction.Words(sentence).Length;
}
return(Convert.ToDouble(word_count) / sentences.Length);
}
public static double CharactersPerWord(string data)
{
string[] words = ContentExtraction.Words(data);
if (words.Length == 0)
{
return(0);
}
double word_length = 0;
foreach (string word in words)
{
word_length += word.Length;
}
return(word_length / words.Length);
}
private static int SuffixFrequency(string[] suffixes, string data)
{
int count = 0;
string[] corpus_words = ContentExtraction.Words(data);
foreach (string word in corpus_words)
{
foreach (string prefix in suffixes)
{
if (word.Length - prefix.Length < 0)
{
continue;
}
if (word.Substring(word.Length - prefix.Length) == prefix)
{
count++;
}
}
}
return(count);
}
public static double WordCount(string data)
{
return(ContentExtraction.Words(data).Length);
}
