diff --git a/dist/Index/InvertedIndex.d.ts b/dist/Index/InvertedIndex.d.ts
index 0a250db..e2413f7 100644
--- a/dist/Index/InvertedIndex.d.ts
+++ b/dist/Index/InvertedIndex.d.ts
@@ -8,11 +8,11 @@ export declare class InvertedIndex {
     private index;
     constructor(dictionaryOrFileName?: any, terms?: Array<TermOccurrence>, comparator?: WordComparator);
     readPostingList(fileName: string): void;
-    keyComparator: (a: (string | number)[], b: (string | number)[]) => 1 | -1 | 0;
+    keyComparator: (a: (string | number)[], b: (string | number)[]) => 0 | 1 | -1;
     saveSorted(fileName: string): void;
     save(fileName: string): void;
     add(termId: number, docId: number): void;
-    postingListComparator: (listA: PostingList, listB: PostingList) => 1 | -1 | 0;
+    postingListComparator: (listA: PostingList, listB: PostingList) => 0 | 1 | -1;
     autoCompleteWord(wordList: Array<string>, dictionary: TermDictionary): void;
     search(query: Query, dictionary: TermDictionary): QueryResult;
 }
diff --git a/dist/Index/PositionalIndex.d.ts b/dist/Index/PositionalIndex.d.ts
index 3d8df82..7795440 100644
--- a/dist/Index/PositionalIndex.d.ts
+++ b/dist/Index/PositionalIndex.d.ts
@@ -10,7 +10,7 @@ export declare class PositionalIndex {
     private positionalIndex;
     constructor(dictionaryOrFileName?: any, terms?: Array<TermOccurrence>, comparator?: WordComparator);
     readPositionalPostingList(fileName: string): void;
-    keyComparator: (a: (string | number)[], b: (string | number)[]) => 1 | -1 | 0;
+    keyComparator: (a: (string | number)[], b: (string | number)[]) => 0 | 1 | -1;
     saveSorted(fileName: string): void;
     save(fileName: string): void;
     addPosition(termId: number, docId: number, position: number): void;
diff --git a/dist/Index/PositionalIndex.js b/dist/Index/PositionalIndex.js
index f7a3d25..f6e5127 100644
--- a/dist/Index/PositionalIndex.js
+++ b/dist/Index/PositionalIndex.js
@@ -207,7 +207,7 @@
                 }
             }
             for (let docID of scores.keys()) {
-                result.add(docID, scores.get(docID) / documents[docID].getSize());
+                result.add(docID, Math.sqrt(scores.get(docID)) / (documents[docID].getSize() * query.size()));
             }
             result.getBest(documentsReturned);
             return result;
diff --git a/dist/Index/PositionalIndex.js.map b/dist/Index/PositionalIndex.js.map
index 73d6030..79a0a8d 100644
--- a/dist/Index/PositionalIndex.js.map
+++ b/dist/Index/PositionalIndex.js.map
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file
diff --git a/dist/Query/QueryResult.js b/dist/Query/QueryResult.js
index 9d8c5b4..75f55c0 100644
--- a/dist/Query/QueryResult.js
+++ b/dist/Query/QueryResult.js
@@ -52,7 +52,7 @@
             for (let searchedItem of this.items) {
                 let low = 0;
                 let high = queryResult.size() - 1;
-                let middle = (low + high) / 2;
+                let middle = Math.floor((low + high) / 2);
                 let found = false;
                 while (low <= high) {
                     if (searchedItem.getDocId() > queryResult.items[middle].getDocId()) {
@@ -67,7 +67,7 @@
                             break;
                         }
                     }
-                    middle = (low + high) / 2;
+                    middle = Math.floor((low + high) / 2);
                 }
                 if (found) {
                     result.add(searchedItem.getDocId(), searchedItem.getScore());
diff --git a/dist/Query/QueryResult.js.map b/dist/Query/QueryResult.js.map
index 6afdbd3..a7cbb97 100644
--- a/dist/Query/QueryResult.js.map
+++ b/dist/Query/QueryResult.js.map
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file
diff --git a/source/Index/PositionalIndex.ts b/source/Index/PositionalIndex.ts
index 9114a5a..0dbc706 100644
--- a/source/Index/PositionalIndex.ts
+++ b/source/Index/PositionalIndex.ts
@@ -213,7 +213,7 @@ export class PositionalIndex {
             }
         }
         for (let docID of scores.keys()){
-            result.add(docID, scores.get(docID) / documents[docID].getSize())
+            result.add(docID, Math.sqrt(scores.get(docID)) / (documents[docID].getSize()*query.size()))
         }
         result.getBest(documentsReturned)
         return result
diff --git a/source/Query/QueryResult.ts b/source/Query/QueryResult.ts
index 44ffd72..464e364 100644
--- a/source/Query/QueryResult.ts
+++ b/source/Query/QueryResult.ts
@@ -46,7 +46,7 @@ export class QueryResult {
         for (let searchedItem of this.items){
             let low = 0
             let high = queryResult.size() - 1
-            let middle = (low + high) / 2
+            let middle = Math.floor((low + high) / 2)
             let found = false
             while (low <= high){
                 if (searchedItem.getDocId() > queryResult.items[middle].getDocId()){
@@ -59,7 +59,7 @@ export class QueryResult {
                         break
                     }
                 }
-                middle = (low + high) / 2
+                middle = Math.floor((low + high) / 2)
             }
             if (found){
                 result.add(searchedItem.getDocId(), searchedItem.getScore())