Re-factored code. Extended code for Extracting KeyPhrases

Author: ranjancse26

PageRank/Graph/GraphNode.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 
 namespace PageRank.Graph
 {

PageRank/Graph/UnDirectedGraph.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Diagnostics;
 
 namespace PageRank.Graph
 {

TextRank/ExtractKeyPhrases.cs

@@ -3,19 +3,14 @@
 
 namespace TextRank
 {
-    public class ExtractKeyPhrases
+    public static class ExtractKeyPhrases
     {
-
-        public Tuple<string, List<string>> Extract(string sentence, int wordLength = 100)
+        public static Tuple<string, List<string>> KeyPhrases(this string sentence, int wordLength = 100)
         {
             var keyWords = ExtractKeyword.Extract.GetKeyWordsList(sentence);
-
             var summary = ExtractSummary.Extract.ExtractParagraphSummary(sentence, wordLength);
-
             return new Tuple<string, List<string>>(summary, keyWords);
         }
-
-
     }
 }
 

TextRank/ExtractKeyword.cs

@@ -1,9 +1,6 @@
-using System;
+using System.Linq;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using PageRank.Graph;
+
 using PageRank.Rank;
 using TextRank.Helpers;
 using TextRank.POSTagger;
@@ -16,21 +13,23 @@ internal sealed class ExtractKeyword
 
         public List<string> GetKeyWordsList(string sentence)
         {
+            IList<string> joinedKeywords = null;
             var taggedList = WordPOSTagger.GetPosTaggedTokens(sentence);
             var directedGraph = GraphUtil.GraphInstance.BuildPOSGraph<string>(taggedList);
             var rank = new PageRank<string>();
             var rankedDictionary = rank.Rank(directedGraph);
 
-            var word_list = ExtractUtil.instance.GetNormalizedUniqueWordList(taggedList);
+            var wordList = ExtractUtil.instance.GetNormalizedUniqueWordList(taggedList);
 
-            var keywords = rankedDictionary?.OrderByDescending(p => p.Value).Take(rankedDictionary.Count/3).Select(p => p.Key).ToList();
-            IList<string> joinedKeywords = null;
-            if (keywords != null)
-                joinedKeywords= ExtractUtil.instance.JoinAdjacentWords(word_list, keywords);
-            return joinedKeywords as List<string>;
+            var keywords = rankedDictionary?.OrderByDescending(p => p.Value)
+                .Take(rankedDictionary.Count/3)
+                .Select(p => p.Key)
+                .ToList();
 
+            if (keywords != null)
+                joinedKeywords= ExtractUtil.instance.JoinAdjacentWords(wordList, keywords);
 
-            
+            return joinedKeywords as List<string>;
         }
     }
 }

TextRank/ExtractSummary.cs

@@ -1,7 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+using System.Linq;
 using System.Text;
+using System.Collections.Generic;
+
 using PageRank.Rank;
 using TextRank.Helpers;
 using TextRank.POSTagger;
@@ -15,19 +15,16 @@ internal sealed class ExtractSummary
         public string ExtractParagraphSummary(string paragraph, int wordLength =100)
         {
             var taggedSentences = SentencePOSTagger.GetTaggedSentences(paragraph);
-
             var directedGraph = GraphUtil.GraphInstance.BuildPOSGraph<string>(taggedSentences);
-
-
             var rankedDictionary = new PageRank<string>().Rank(directedGraph);
-
             var rankedSentencesList = rankedDictionary?.ToList().OrderByDescending(p => p.Value).Select(x => x.Key).ToList();
-            var top_sentences = new List<string>();
+            var topSentences = new List<string>();
 
             if (rankedSentencesList != null)
             {
                 int wordCount = 0;
                 int index = 0;
+
                 foreach (var sentences in rankedSentencesList)
                 {
                     wordCount = sentences.Split(null).Length + wordCount;
@@ -36,31 +33,29 @@ public string ExtractParagraphSummary(string paragraph, int wordLength =100)
                         break;
                     }
                     index++;
-
                 }
-                if (wordCount < wordLength) index--;
-
-                top_sentences = rankedSentencesList.Take(index).ToList();
 
+                if (wordCount < wordLength) index--;
+                topSentences = rankedSentencesList.Take(index).ToList();
             }
 
             StringBuilder summry = new StringBuilder("");
 
-            foreach (var sent in taggedSentences)
+            foreach (var taggedSentence in taggedSentences)
             {
-                foreach (var summary_sentence in top_sentences)
+                foreach (var summarySentence in topSentences)
                 {
-                    if (summary_sentence.Equals(sent))
+                    if (summarySentence.Equals(taggedSentence))
                     {
-                        summry.Append(summary_sentence);
+                        summry.Append(summarySentence);
                         summry.Append("<br/><br/>");
                     }
                 }
             }
 
-            var orig_length = paragraph.Length;
-            var summary = summry.ToString(); //string.Join(" ", summary_word);
-            var summarized_length = summry.Length;
+            var origLength = paragraph.Length;
+            var summary = summry.ToString(); 
+            var summarizedLength = summry.Length;
 
             return summary;
         }

TextRank/Helpers/ExtentionMethod.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Collections.Generic;
 
 namespace TextRank.Helpers
 {

TextRank/Helpers/ExtractUtil.cs

@@ -1,9 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.ComponentModel;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace TextRank.Helpers
 {

TextRank/Helpers/GraphUtil.cs

@@ -1,9 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Security.AccessControl;
-using System.Text;
-using System.Threading.Tasks;
 using PageRank.Graph;
 
 namespace TextRank.Helpers

TextRank/LevenhteinDistance.cs

@@ -46,6 +46,7 @@ public int Calculate(string firstString, string secondString)
                         _editDistanceArray[i - 1, j - 1] + cost);
                 }
             }
+
             // Step 7
             return _editDistanceArray[firstStringLength, secondStringLength];
         }

TextRank/POSTagger/SentencePOSTagger.cs

@@ -1,8 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using OpenNLP.Tools.SentenceDetect;
 
 namespace TextRank.POSTagger

TextRank/Properties/AssemblyInfo.cs

@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 // General Information about an assembly is controlled through the following

TextSummarize/Program.cs

@@ -12,9 +12,7 @@ static void Main(string[] args)
                 .WriteTo.File("log.txt", rollingInterval: RollingInterval.Day)
                 .WriteTo.Console()
                 .CreateLogger();
-
-            var extractKeyPhrases = new ExtractKeyPhrases();
-            
+                        
             var sentence =
                 "LINCOLNSHIRE, IL With next-generation video game systems such as the Xbox One and the Playstation 4 hitting stores later this month, the console wars got even hotter today as electronics manufacturer Zenith announced the release of its own console, the Gamespace Pro, which arrives in stores Nov. 19. “With its sleek silver-and-gray box, double-analog-stick controllers, ability to play CDs, and starting price of $374.99, the Gamespace Pro is our way of saying, ‘Move over, Sony and Microsoft, Zenith is now officially a player in the console game,’” said Zenith CEO Michael Ahn at a Gamespace Pro press event, showcasing the system’s launch titles MoonChaser: Radiation, Cris Collinsworth’s Pigskin 2013, and survival-horror thriller InZomnia. “With over nine launch titles, 3D graphics, and the ability to log on to the internet using our Z-Connect technology, Zenith is finally poised to make some big waves in the video game world.” According to Zenith representatives, over 650 units have already been preordered.";
             var sentence1 =
@@ -28,7 +26,7 @@ static void Main(string[] args)
                 The deal, which valued the Bengaluru-based company at USD 20.8 billion, is believed to be part of Walmart's strategy to strengthen presence in the Indian market and also compete head-on with global rival, Amazon.
                 Amazon is also a rival to Flipkart and the two are locked in an intense battle for leadership in the booming Indian e-commerce market that is forecast to touch USD 200 billion in the next few years.";
 
-            var phrases = extractKeyPhrases.Extract(sentence1);
+            var phrases = sentence1.KeyPhrases();
 
             Log.Information("Extracted Phrases : {Phrases}", phrases.Item1);
             Log.Information(sentence1);

TextSummarize/Properties/AssemblyInfo.cs

@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 // General Information about an assembly is controlled through the following