NClassifier.Summarizer.SimpleSummarizer.Summarize C# (CSharp) Méthode

        public string Summarize(string input, int numberOfSentences)
        {
            // get the frequency of each word in the input
            Hashtable wordFrequencies = Utilities.GetWordFrequency(input);

            // now create a set of the X most frequent words
            ArrayList mostFrequentWords = GetMostFrequentWords(100, wordFrequencies);

            // break the input up into sentences
            string[] workingSentences = Utilities.GetSentences(input.ToLower());
            string[] actualSentences = Utilities.GetSentences(input);

            // iterate over the most frequent words, and add the first sentence
            // that includes each word to the result.
            ArrayList outputSentences = new ArrayList();
            foreach (string word in mostFrequentWords)
            {
                for (int i = 0; i < workingSentences.Length; i++)
                {
                    if (workingSentences[i].IndexOf(word) >= 0)
                    {
                        outputSentences.Add(actualSentences[i]);
                        break;
                    }
                    if (outputSentences.Count >= numberOfSentences)
                        break;
                }
                if (outputSentences.Count >= numberOfSentences)
                    break;
            }

            ArrayList reorderedOutputSentences = ReorderSentences(outputSentences, input);

            StringBuilder result = new StringBuilder();
            foreach (string sentence in reorderedOutputSentences)
            {
                if (result.Length > 0)
                    result.Append(" ");
                result.Append(sentence);
                result.Append("."); // this isn't correct - it should be whatever symbol the sentence finished with
            }

            return result.ToString();
        }