1. Refactored code.

2. Removed edges of documents that has more than 100 co-authors.

src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/CoAuthorshipQueryHandler.java

@@ -44,7 +44,7 @@ import edu.cornell.mannlib.vitro.webapp.visualization.visutils.UniqueIDGenerator
  */
 public class CoAuthorshipQueryHandler implements QueryHandler<CoAuthorshipVOContainer> {
 
-	private static final int MAX_AUTHORS_PER_PAPER_ALLOWED = 101;
+	private static final int MAX_AUTHORS_PER_PAPER_ALLOWED = 100;
 
 	protected static final Syntax SYNTAX = Syntax.syntaxARQ;
 
@@ -108,7 +108,6 @@ public class CoAuthorshipQueryHandler implements QueryHandler<CoAuthorshipVOCont
 				}
 			}
 			
-			
 			RDFNode documentNode = solution.get(QueryFieldLabels.DOCUMENT_URL);
 			BiboDocument biboDocument;
 			
@@ -191,6 +190,38 @@ public class CoAuthorshipQueryHandler implements QueryHandler<CoAuthorshipVOCont
 			
 		}
 		
+		/*
+		 * This code snippet takes out all the edges belong to documents that have more than 
+		 * 100 authors. We conjecture that these papers do not provide much insight. However, 
+		 * we have left the documents be, just the edges are removed.  
+		 * */
+		for (Map.Entry<String, Set<Node>> currentBiboDocumentEntry 
+					: biboDocumentURLToCoAuthors.entrySet()) {
+				
+				if (currentBiboDocumentEntry.getValue().size() > MAX_AUTHORS_PER_PAPER_ALLOWED) {
+					
+					BiboDocument currentBiboDocument = biboDocumentURLToVO
+															.get(currentBiboDocumentEntry.getKey());
+					
+					Set<Edge> edgesToBeRemoved = new HashSet<Edge>();
+					
+					for (Edge currentEdge : edges) {
+						Set<BiboDocument> currentCollaboratorDocuments = 
+									currentEdge.getCollaboratorDocuments();
+						
+						if (currentCollaboratorDocuments.contains(currentBiboDocument)) {
+							currentCollaboratorDocuments.remove(currentBiboDocument);
+							if (currentCollaboratorDocuments.isEmpty()) {
+								edgesToBeRemoved.add(currentEdge);
+							}
+						}
+					}
+						
+					edges.removeAll(edgesToBeRemoved);
+					
+				}
+		}
+		
 		/*
 		 * We need to create edges between 2 co-authors. E.g. On a paper there were 3 authors
 		 * ego, A & B then we have already created edges like,
@@ -230,7 +261,8 @@ public class CoAuthorshipQueryHandler implements QueryHandler<CoAuthorshipVOCont
 			 * & causes unnecessary computations causing the server to time-out.
 			 * */
 			if (currentBiboDocumentEntry.getValue().size() > 1 
-					&& currentBiboDocumentEntry.getValue().size() < MAX_AUTHORS_PER_PAPER_ALLOWED) {
+					&& currentBiboDocumentEntry.getValue().size() 
+							<= MAX_AUTHORS_PER_PAPER_ALLOWED) {
 				
 				
 				Set<Edge> newlyAddedEdges = new HashSet<Edge>();

src/edu/cornell/mannlib/vitro/webapp/visualization/utilities/UtilitiesRequestHandler.java

@@ -92,7 +92,11 @@ public class UtilitiesRequestHandler implements VisualizationRequestHandler {
     				
     			} catch (MalformedQueryParametersException e) {
     				try {
-    					handleMalformedParameters(e.getMessage(), vitroRequest, request, response, log);
+    					handleMalformedParameters(e.getMessage(), 
+    											  vitroRequest, 
+    											  request, 
+    											  response, 
+    											  log);
     				} catch (ServletException e1) {
     					log.error(e1.getStackTrace());
     				} catch (IOException e1) {
@@ -141,7 +145,11 @@ public class UtilitiesRequestHandler implements VisualizationRequestHandler {
     				
     			} catch (MalformedQueryParametersException e) {
     				try {
-    					handleMalformedParameters(e.getMessage(), vitroRequest, request, response, log);
+    					handleMalformedParameters(e.getMessage(), 
+    											  vitroRequest, 
+    											  request, 
+    											  response, 
+    											  log);
     				} catch (ServletException e1) {
     					log.error(e1.getStackTrace());
     				} catch (IOException e1) {