Ejemplo n.º 1
0
        public void BigramParsing_ExampleInputRepeat1000_ReturnEqual()
        {
            string input = "";

            for (int i = 0; i <= 1000; i++)
            {
                input = input + "The quick brown fox and the quick blue hare. ";
            }
            Bigram        bg      = new Bigram();
            List <string> bigrams = bg.BigramParsing(input);

            string[] actualResults = bigrams.ToArray();
            for (int i = 0; i <= 1000; i++)
            {
                GetExpectedsBigrams();
                if (i < 1000)
                {
                    expectedsBigrams.Add("hare the");
                }
            }
            for (int i = 0; i < expectedsBigrams.Count; i++)
            {
                Assert.AreEqual(expectedsBigrams[i], actualResults[i]);
            }
        }
Ejemplo n.º 2
0
        public void BigramHistogram_Repleat1000_ReturnEqual()
        {
            List <string> input = new List <string>();

            for (int i = 0; i < 1000; i++)
            {
                input.Add("the quick");
                input.Add("quick brown");
                input.Add("brown fox");
                input.Add("fox and");
                input.Add("and the");
                input.Add("the quick");
                input.Add("quick blue");
                input.Add("blue hare");
            }

            Bigram bg = new Bigram();
            Dictionary <string, int> bigramResults = bg.BigramHistogram(input);
            List <int> Results = new List <int>(bigramResults.Values);

            int[] ExpectedCount = { 2000, 1000, 1000, 1000, 1000, 1000, 1000 };
            for (int i = 0; i < ExpectedCount.Length; i++)
            {
                Assert.AreEqual(ExpectedCount[i], Results[i]);
            }
        }
Ejemplo n.º 3
0
        public void BigramInstanceTest()
        {
            var unigram = new Bigram("ab");

            Assert.AreEqual(2, unigram.Length);
            Assert.AreEqual("ab", unigram.Value);
        }
Ejemplo n.º 4
0
            /// <summary>
            /// Calculates the Dice Coefficient for two given strings.
            /// </summary>
            /// <remarks>This is a similarity metric based on bigrams that is calculated as follows:
            /// * D is Dice coefficient
            /// * SB is Shared Bigrams
            /// * TBg1 is total number of bigrams in Qgram1
            /// * TBg2 is total number of bigrams in Qgram2
            /// * D = (2SB)/(TBg1+TBg2)
            /// A good Dice Coefficient value would be a value greater than 0.33</remarks>
            /// <param name="pStr1">First string to compare</param>
            /// <param name="pStr2">Second string to compare</param>
            /// <returns>Dice Coefficient</returns>
            internal static double DiceCoefficient(String pStr1, String pStr2)
            {
                // faulty input parameters
                if (string.IsNullOrEmpty(pStr1) || string.IsNullOrEmpty(pStr1))
                {
                    return(0.0);
                }

                var bigram1 = Bigram.Parse(pStr1);
                var bigram2 = Bigram.Parse(pStr2);

                // calculate number of shared bigrams
                int sharedBigrams = 0;

                foreach (var s1 in bigram1)
                {
                    foreach (var s2 in bigram2)
                    {
                        if (s1.Equals(s2))
                        {
                            sharedBigrams++;
                        }
                    }
                }

                // calculate dice coefficient
                double dice = Convert.ToDouble(sharedBigrams * 2) / Convert.ToDouble(bigram1.Length + bigram2.Length);

                return(dice);
            }
Ejemplo n.º 5
0
        public void BigramHistogram_Mirror_ReturnEqual()
        {
            List <string> input = new List <string>();

            input.Add("the quick");
            input.Add("quick brown");
            input.Add("brown fox");
            input.Add("fox and");
            input.Add("and the");
            input.Add("the quick");
            input.Add("quick blue");
            input.Add("blue hare");

            #region Mirror example
            input.Add("blue hare");
            input.Add("quick blue");
            input.Add("the quick");
            input.Add("and the");
            input.Add("fox and");
            input.Add("brown fox");
            input.Add("quick brown");
            input.Add("the quick");
            #endregion

            Bigram bg = new Bigram();
            Dictionary <string, int> bigramResults = bg.BigramHistogram(input);
            List <int> Results       = new List <int>(bigramResults.Values);
            int[]      ExpectedCount = { 4, 2, 2, 2, 2, 2, 2 };
            for (int i = 0; i < ExpectedCount.Length; i++)
            {
                Assert.AreEqual(ExpectedCount[i], Results[i]);
            }
        }
Ejemplo n.º 6
0
        public void CompareToTest()
        {
            var instance       = new Bigram("xy");
            var higherInstance = new Bigram("ab");
            var equalInstance  = new Bigram("xy");

            HelpersTest.AssertCompareTo(instance, higherInstance, equalInstance);
        }
Ejemplo n.º 7
0
        public Api(string unigramFile, string bigramFile)
        {
            if (!File.Exists(unigramFile))
            {
                throw new Exception(string.Format("1-gram file '{0}' is missing", unigramFile));
            }

            this.dict   = Dict.Build(unigramFile);
            this.bigram = new Bigram(unigramFile, bigramFile);
        }
Ejemplo n.º 8
0
        public void GetSequence_Returns_Sequence()
        {
            string[] words   = bigramService.SplitWords(input);
            var      bigrams = bigramService.GetSequence(words);

            Bigram bigram = bigrams[0];

            Assert.AreEqual(7, bigrams.Count);
            Assert.AreEqual("the quick", bigram.Phrase);
            Assert.AreEqual(2, bigram.Count);
        }
Ejemplo n.º 9
0
        public void BigramParsing_ExampleInput_ReturnEqual()
        {
            string        input   = "The quick brown fox and the quick blue hare.";
            Bigram        bg      = new Bigram();
            List <string> bigrams = bg.BigramParsing(input);

            string[] actualResults = bigrams.ToArray();
            GetExpectedsBigrams();
            for (int i = 0; i < expectedsBigrams.Count; i++)
            {
                Assert.AreEqual(expectedsBigrams[i], actualResults[i]);
            }
        }
Ejemplo n.º 10
0
        private void CompareEqual(string input)
        {
            Bigram        bg      = new Bigram();
            List <string> bigrams = bg.BigramParsing(input);

            string[] actualResults = bigrams.ToArray();

            GetExpectedsBigrams();

            for (int i = 0; i < expectedsBigrams.Count; i++)
            {
                Assert.AreEqual(expectedsBigrams[i], actualResults[i]);
            }
        }
        public static svm_node[] CreateNode(string x, IReadOnlyList<string> vocabulary)
        {
            var node = new List<svm_node>(vocabulary.Count);
            int sum = 0;
            List<string> allWords = new List<string>();
            x = x.Replace(",", "");
            Bigram b = new Bigram();

            String[] stopwords = new String[] { "hon.", "gentleman", "member", "friend", "lady", "a", "about", "above", "above", "across", "after", "afterwards", "again", "against", "all", "almost", "alone", "along", "already", "also", "although", "always", "am", "among", "amongst", "amoungst", "amount", "an", "and", "another", "any", "anyhow", "anyone", "anything", "anyway", "anywhere", "are", "around", "as", "at", "back", "be", "became", "because", "become", "becomes", "becoming", "been", "before", "beforehand", "behind", "being", "below", "beside", "besides", "between", "beyond", "bill", "both", "bottom", "but", "by", "call", "can", "cannot", "cant", "co", "con", "could", "couldnt", "cry", "de", "describe", "detail", "do", "done", "down", "due", "during", "each", "eg", "eight", "either", "eleven", "else", "elsewhere", "empty", "enough", "etc", "even", "ever", "every", "everyone", "everything", "everywhere", "except", "few", "fifteen", "fify", "fill", "find", "fire", "first", "five", "for", "former", "formerly", "forty", "found", "four", "from", "front", "full", "further", "get", "give", "go", "had", "has", "hasnt", "have", "he", "hence", "her", "here", "hereafter", "hereby", "herein", "hereupon", "hers", "herself", "him", "himself", "his", "how", "however", "hundred", "i", "ie", "if", "in", "inc", "indeed", "interest", "into", "is", "it", "its", "itself", "keep", "last", "latter", "latterly", "least", "less", "ltd", "made", "many", "may", "me", "meanwhile", "might", "mill", "mine", "more", "moreover", "most", "mostly", "move", "much", "must", "my", "myself", "name", "namely", "neither", "never", "nevertheless", "next", "nine", "no", "nobody", "none", "noone", "nor", "not", "nothing", "now", "nowhere", "of", "off", "often", "on", "once", "one", "only", "onto", "or", "other", "others", "otherwise", "our", "ours", "ourselves", "out", "over", "own", "part", "per", "perhaps", "please", "put", "rather", "re", "same", "see", "seem", "seemed", "seeming", "seems", "serious", "several", "she", "should", "show", "side", "since", "sincere", "six", "sixty", "so", "some", "somehow", "someone", "something", "sometime", "sometimes", "somewhere", "still", "such", "system", "take", "ten", "than", "that", "the", "their", "them", "themselves", "then", "thence", "there", "thereafter", "thereby", "therefore", "therein", "thereupon", "these", "they", "thickv", "thin", "third", "this", "those", "though", "three", "through", "throughout", "thru", "thus", "to", "together", "too", "top", "toward", "towards", "twelve", "twenty", "two", "un", "under", "until", "up", "upon", "us", "very", "via", "was", "we", "well", "were", "what", "whatever", "when", "whence", "whenever", "where", "whereafter", "whereas", "whereby", "wherein", "whereupon", "wherever", "whether", "which", "while", "whither", "who", "whoever", "whole", "whom", "whose", "why", "will", "with", "within", "without", "would", "yet", "you", "your", "yours", "yourself", "yourselves", "the" };
            List<String> stop = stopwords.ToList<String>();

            x = x.Replace(",", "");
            x = x.ToLower();
            String[] sp = x.Split(' ');
            String sent = "";
            for (int z = 0; z < sp.Length; z++)
            {
                String word = sp[z];
                if (stop.Contains(word))
                {
                    Debug.WriteLine("Stop Word");
                }
                else
                {
                    sent += word;
                    sent += " ";
                }
            }

            allWords = b.getNG(sent);

            string[] words = allWords.ToArray();

            for (int i = 0; i < vocabulary.Count; i++)
            {
                int occurenceCount = words.Count(s => String.Equals(s, vocabulary[i], StringComparison.OrdinalIgnoreCase));
                if (occurenceCount == 0)
                    continue;

                node.Add(new svm_node
                {
                    index = i + 1,
                    value = occurenceCount
                });
            }

                return node.ToArray();
        }
Ejemplo n.º 12
0
            /// <summary>
            /// Calculates the Dice Coefficient for two given strings.
            /// </summary>
            /// <remarks>This is a similarity metric based on bigrams that is calculated as follows:
            /// * D is Dice coefficient
            /// * SB is Shared Bigrams
            /// * TBg1 is total number of bigrams in Qgram1
            /// * TBg2 is total number of bigrams in Qgram2
            /// * D = (2SB)/(TBg1+TBg2)
            /// A good Dice Coefficient value would be a value greater than 0.33</remarks>
            /// <param name="pStr1">First string to compare</param>
            /// <param name="pStr2">Second string to compare</param>
            /// <returns>Dice Coefficient</returns>
            internal static double DiceCoefficient(string pStr1, string pStr2)
            {
                // faulty input parameters
                if (string.IsNullOrEmpty(pStr1) || string.IsNullOrEmpty(pStr1))
                {
                    return(0.0);
                }

                var bigram1 = Bigram.Parse(pStr1);
                var bigram2 = Bigram.Parse(pStr2);

                // calculate number of shared bigrams
                var sharedBigrams = bigram1.Sum(s1 => bigram2.Count(s1.Equals));

                // calculate dice coefficient
                return(Convert.ToDouble(sharedBigrams * 2) / Convert.ToDouble(bigram1.Length + bigram2.Length));
            }
Ejemplo n.º 13
0
        public IList <Bigram> CreateBigramList(IList <string> wordList)
        {
            Bigrams = new List <Bigram>();
            Bigram bigram = new Bigram();

            bigram.FirstWord = wordList[0];
            foreach (var w in wordList.ToList().GetRange(1, wordList.Count() - 1))
            {
                bigram.SecondWord = w;
                Bigrams.Add(bigram);

                bigram           = new Bigram();
                bigram.FirstWord = Bigrams.Last().SecondWord;
            }

            return(Bigrams);
        }
Ejemplo n.º 14
0
        public void Bigram_ShouldCreateAnInstanceOfThisType_WhenProperArgument()
        {
            // Arrange
            // Act
            Bigram actual1
                = new Bigram(
                      new TokenizationStrategy(),
                      ObjectMother.LabeledExample_Text1_BigramValue1
                      );
            Bigram actual2
                = new Bigram(
                      ObjectMother.LabeledExample_Text1_BigramValue1
                      );

            // Assert
            Assert.IsInstanceOf <Bigram>(actual1);
            Assert.IsInstanceOf <Bigram>(actual2);
        }
Ejemplo n.º 15
0
        public void BigramHistogram_Opposit_ReturnEqual()
        {
            List <string> input = new List <string>();

            input.Add("the quick");
            input.Add("quick the");
            input.Add("the quick");
            input.Add("quick the");
            input.Add("quick the");


            Bigram bg = new Bigram();
            Dictionary <string, int> bigramResults = bg.BigramHistogram(input);
            List <int> Results = new List <int>(bigramResults.Values);

            int[] ExpectedCount = { 2, 3 };
            for (int i = 0; i < ExpectedCount.Length; i++)
            {
                Assert.AreEqual(ExpectedCount[i], Results[i]);
            }
        }
Ejemplo n.º 16
0
        Bigram CipherBigram(char[,] cipherTable, Bigram bigram)
        {
            int i1 = 0, i2 = 0, j1 = 0, j2 = 0;

            for (int i = 0; i < cipherTable.GetLength(1); i++)
            {
                for (int j = 0; j < cipherTable.GetLength(0); j++)
                {
                    if (cipherTable[i, j] == bigram.character1)
                    {
                        i1 = i;
                        j1 = j;
                    }
                    if (cipherTable[i, j] == bigram.character2)
                    {
                        i2 = i;
                        j2 = j;
                    }
                }
            }


            if (i1 == i2)
            {
                bigram.character1 = cipherTable[(i1 + 1) % (cipherTable.GetLength(1)), j1];
                bigram.character2 = cipherTable[(i2 + 1) % (cipherTable.GetLength(1)), j2];
            }
            else if (j1 == j2)
            {
                bigram.character1 = cipherTable[i1, (j1 + 1) % (cipherTable.GetLength(0))];
                bigram.character2 = cipherTable[i2, (j2 + 1) % (cipherTable.GetLength(0))];
            }
            else
            {
                bigram.character1 = cipherTable[i1, j2];
                bigram.character2 = cipherTable[i2, j1];
            }

            return(bigram);
        }
Ejemplo n.º 17
0
        static void Main()
        {
            const string dataFilePath = @"C:\Users\Rory\Desktop\Han.csv";
            List<String> negwords = new List<String>();
            List<String> poswords = new List<String>();
            sentC = new List<String>();
            //String negFile = "C:/Users/Rory/Desktop/negative-words.txt";
            //String posFile = "C:/Users/Rory/Desktop/positive-words.txt";
            //GetNeg(negwords, negFile);
            //GetNeg(poswords, posFile);

            String[] stopwords = new String[]{"hon.","gentleman","member","friend","lady","a", "about", "above", "above", "across", "after", "afterwards", "again", "against", "all", "almost", "alone", "along", "already", "also","although","always","am","among", "amongst", "amoungst", "amount",  "an", "and", "another", "any","anyhow","anyone","anything","anyway", "anywhere", "are", "around", "as",  "at", "back","be","became", "because","become","becomes", "becoming", "been", "before", "beforehand", "behind", "being", "below", "beside", "besides", "between", "beyond", "bill", "both", "bottom","but", "by", "call", "can", "cannot", "cant", "co", "con", "could", "couldnt", "cry", "de", "describe", "detail", "do", "done", "down", "due", "during", "each", "eg", "eight", "either", "eleven","else", "elsewhere", "empty", "enough", "etc", "even", "ever", "every", "everyone", "everything", "everywhere", "except", "few", "fifteen", "fify", "fill", "find", "fire", "first", "five", "for", "former", "formerly", "forty", "found", "four", "from", "front", "full", "further", "get", "give", "go", "had", "has", "hasnt", "have", "he", "hence", "her", "here", "hereafter", "hereby", "herein", "hereupon", "hers", "herself", "him", "himself", "his", "how", "however", "hundred", "i","ie", "if", "in", "inc", "indeed", "interest", "into", "is", "it", "its", "itself", "keep", "last", "latter", "latterly", "least", "less", "ltd", "made", "many", "may", "me", "meanwhile", "might", "mill", "mine", "more", "moreover", "most", "mostly", "move", "much", "must", "my", "myself", "name", "namely", "neither", "never", "nevertheless", "next", "nine", "no", "nobody", "none", "noone", "nor", "not", "nothing", "now", "nowhere", "of", "off", "often", "on", "once", "one", "only", "onto", "or", "other", "others", "otherwise", "our", "ours", "ourselves", "out", "over", "own","part", "per", "perhaps", "please", "put", "rather", "re", "same", "see", "seem", "seemed", "seeming", "seems", "serious", "several", "she", "should", "show", "side", "since", "sincere", "six", "sixty", "so", "some", "somehow", "someone", "something", "sometime", "sometimes", "somewhere", "still", "such", "system", "take", "ten", "than", "that", "the", "their", "them", "themselves", "then", "thence", "there", "thereafter", "thereby", "therefore", "therein", "thereupon", "these", "they", "thickv", "thin", "third", "this", "those", "though", "three", "through", "throughout", "thru", "thus", "to", "together", "too", "top", "toward", "towards", "twelve", "twenty", "two", "un", "under", "until", "up", "upon", "us", "very", "via", "was", "we", "well", "were", "what", "whatever", "when", "whence", "whenever", "where", "whereafter", "whereas", "whereby", "wherein", "whereupon", "wherever", "whether", "which", "while", "whither", "who", "whoever", "whole", "whom", "whose", "why", "will", "with", "within", "without", "would", "yet", "you", "your", "yours", "yourself", "yourselves", "the"};
            List<String> stop = stopwords.ToList<String>();
            var dataTable = DataTable.New.ReadCsv(dataFilePath);
            List<string> x = dataTable.Rows.Select(row => row["Text"]).ToList();
            double[] y = dataTable.Rows.Select(row => double.Parse(row["IsPos"])).ToArray();

            //var vocab = x.SelectMany(GetWords).Distinct().OrderBy(word => word).ToList();

            Bigram b = new Bigram();
            List<String> v = new List<string>();

            String sent = "";

            for(int i = 0; i < x.Count; i++)
            {
                String c = x[i].ToString();

                c = c.Replace(",", "");
                c = c.ToLower();
                String[] sp = c.Split(' ');
                for (int z = 0; z < sp.Length; z++)
                {
                    String word = sp[z];
                    if(stop.Contains(word))
                    {
                        Debug.WriteLine("Stop Word");
                    }
                    else
                    {
                        sent += word;
                        sent += " ";
                    }
                }

                sent = sent.Trim();

                v.AddRange(b.getNG(sent));

                sent = "";
            }
              // int bound = v.Count();
              //v.AddRange(negwords);
              //  int nBound = v.Count();
              //v.AddRange(poswords);
              //  v = v.Distinct().ToList();
            var problemBuilder = new TextClassificationProblemBuilder();
            var problem = problemBuilder.CreateProblem(x, y, v);

            ProblemHelper.WriteProblem(@"C:\Users\Rory\Desktop\hanData.problem", problem);

            problem = ProblemHelper.ReadProblem(@"C:\Users\Rory\Desktop\hanData.problem");

            const int C = 1;
            var model = new C_SVC(problem, KernelHelper.LinearKernel(), C);

            var accuracy = model.GetCrossValidationAccuracy(10);
            Console.WriteLine("Accuracy of the model is {0:P}", accuracy);

            string userInput;
            _predictionDictionary = new Dictionary<int, string> { { -1, "Negative" }, { 1, "Positive" } };
            getSent();
            for (int i = 0; i < nText.Count; i++)
            {
                userInput = nText[i].ToString();
                var newX = TextClassificationProblemBuilder.CreateNode(userInput, v);
                var predictedY = model.Predict(newX);

                Console.WriteLine("The prediction is {0}", _predictionDictionary[(int)predictedY]);
                String pred = _predictionDictionary[(int)predictedY];
                Console.WriteLine(new string('=', 50));
               sentC.Add(pred);
            }

            addToO();
            getNumbers();
            forPeople();

            using(StreamWriter file = new StreamWriter(@"C:\Users\Rory\Desktop\Peop.csv"))
            {
                file.WriteLine("PersID,Name,Positive,Negative,Party");
                for(int i = 0; i < pl.Count; i++)
                {
                    String line = pl[i].getID().ToString() + "," + pl[i].getName().ToString() + "," + pl[i].getPos().ToString() + "," + pl[i].getNeg().ToString() + "," + pl[i].getParty().ToString();
                    //var json = JsonConvert.SerializeObject(pl[i]);
                    file.WriteLine(line);
                }
            }

            using (StreamWriter file = new StreamWriter(@"C:\Users\Rory\Desktop\PositiveSent.csv"))
            {
                file.WriteLine("SpeakerID,TargetID,Text,Sentiment");
                for (int i = 0; i < ps.Count; i++)
                {
                    String line = ps[i].getSID().ToString() + "," + ps[i].getAID().ToString() + "," + ps[i].getText().ToString() + "," + ps[i].getSent().ToString();
                    file.WriteLine(line);
                }
            }

            using (StreamWriter file = new StreamWriter(@"C:\Users\Rory\Desktop\NegativeSent.csv"))
            {
                file.WriteLine("SpeakerID,TargetID,Text,Sentiment");
                for (int i = 0; i < ns.Count; i++)
                {
                    String line = ns[i].getSID().ToString() + "," + ns[i].getAID().ToString() + "," + ns[i].getText().ToString() + "," + ns[i].getSent().ToString();
                    file.WriteLine(line);
                }
            }

            ns.AddRange(ps);
            doSwap();

            var json = "{\"nodes\":";
            json += JsonConvert.SerializeObject(pl);
            json += ",";

            var edge = "\"edges\":";
            edge += JsonConvert.SerializeObject(nss);
            edge += "}";

            var fullJSON = json + edge;
            Debug.Write(fullJSON);

            using (StreamWriter file = new StreamWriter(@"C:\Users\Rory\Desktop\Nodes2.JSON"))
            {
                file.Write(fullJSON);

            }

            getRels();
            List<Relationship> sl = rl.OrderBy(o=>o.source).ToList();
            var edges = "\"links\":";
            edges += JsonConvert.SerializeObject(sl);
            edges += "}";

            var fullJ = json + edges;

            using (StreamWriter file = new StreamWriter(@"C:\Users\Rory\Desktop\Rels2.JSON"))
            {
                file.Write(fullJ);

            }
        }
Ejemplo n.º 18
0
 public void BigramExceptionTest()
 {
     var unigram = new Bigram("a");
 }
Ejemplo n.º 19
0
        public void ToStringTest()
        {
            var bigram = new Bigram("ab");

            Assert.AreEqual("ab", bigram.ToString());
        }