diff --git a/INSTALL.md b/INSTALL.md
new file mode 100644
index 0000000..f67a0cf
--- /dev/null
+++ b/INSTALL.md
@@ -0,0 +1,41 @@
+##INSTALLATION AND USAGE
+
+`python setup.py develop`
+  
+ - this will check and install required dependencies
+
+###PREREQUISITES
+
+- Local copy of the cablegate torrent into data/cablegate.wikileaks.org/
+- MongoDB (http://www.mongodb.org)
+- please fetch manually a stable version of pymongo for your system (the pypi one is broken) : http://api.mongodb.org/python/1.9%2B/index.html
+  
+#### Gephi Software
+
+- You can try Gephi yourself by downloading it from the [downloads page](http://gephi.org/users/download/).
+- For any question try the [Gephi forums](http://forum.gephi.org) or [@Gephi](http://twitter.com/gephi) on Twitter.
+- You can follow the 5-min tutorial here: [quick-start tutorial](http://gephi.org/users/quick-start/)
+
+###USAGE
+
+  - start your mongod daemon
+  - find command-line help :
+  
+`python cablegate_semnet.py -h`
+
+  - to export all the data run:
+  
+`mongoexport -d cables -c cables -o dump/cables.json`
+
+
+###JSON OUTPUT
+
+`cable = {
+  "_id" : "XXX",
+  "origin" : "EMBASSY NAME",
+  "date_time" : "2000-00-00 00:00",
+  "classification" : "TAG",
+  "content" : "text",
+  "label" : "label",
+  "id" : "XXX"
+}`
\ No newline at end of file
diff --git a/cableindexer.py b/cableindexer.py
index ac5bcd4..c7b573f 100644
--- a/cableindexer.py
+++ b/cableindexer.py
@@ -43,7 +43,7 @@ def __init__(self, storage, config):
       
     def index_cables(self, ngramizer, filters, postagger):
         """
-        gets the a document from storage then extract n-grams
+        gets the all cables from storage then extract n-grams
         """
         for cable in self.storage.cables.find():
             if cable is None:
diff --git a/cablenetwork.py b/cablenetwork.py
index 612eb4c..9a16cd9 100644
--- a/cablenetwork.py
+++ b/cablenetwork.py
@@ -16,7 +16,7 @@
 import logging
 logging.basicConfig(level=logging.DEBUG, format="%(levelname)-8s %(message)s")
 
-from bson.code import Code
+from pymongo import bson
 
 class CoocNetwork(object):
     """
@@ -31,36 +31,36 @@ def map_reduce(self, ngramizer, filters, postagger, minoccs):
         """
         execute a map-reduce operation on mongodb documents to produce the coocurrence edges matrix
         """
-        result = self.storage.cables.map_reduce( self.get_mapper(), self.get_reducer() )
+        result = self.storage.cables.map_reduce( self.get_mapper(), self.get_reducer(), out="cooccurrences", verbose="true" )
         logging.info("CableExtractor.map_reduce is done")
 
     def get_mapper(self):
-        return Code(
-            function() {
-                for (var ngramid in this.edges.NGram) {
-                    var coocslice = {};
-                    for (var neighbourid in this.edges.NGram) {
-                        if (neighbourid != ngramid) {
-                            coocslice[neighbourid] = 1;
-                        }
-                    }
-                    emit(ngramid, coocslice);
-                }
-            }
+        return bson.code.Code(
+            "function() {"
+            "    for (var ngramid in this.edges.NGram) {"
+            "        var coocslice = {};"
+            "        for (var neighbourid in this.edges.NGram[ngramid]) {"
+            "            if (neighbourid != ngramid) {"
+            "                coocslice[neighbourid] = 1;"
+            "            }"
+            "        }"
+            "        emit(ngramid, coocslice);"
+            "    }"
+            "}"
         )
         
     def get_reducer(self):
-        return Code(
-            function(ngramid, coocslices) {
-                totalcooc = {};
-                for ( var slice in coocslices ) {
-                    for ( var neighbourid in slice ) {
-                        if ( neighbourid in totalcooc )
-                            totalcooc[neighbourid] += slice[neighbourid]
-                        else
-                            totalcooc[neighbourid] = slice[neighbourid]
-                    }
-                }
-                return totalcooc;
-            }
+        return bson.code.Code(
+            "function(ngramid, coocslices) {"
+            "    totalcooc = {};"
+            "    for ( var slice in coocslices ) {"
+            "        for ( var neighbourid in slice ) {"
+            "            if ( neighbourid in totalcooc )"
+            "                totalcooc[neighbourid] += slice[neighbourid];"
+            "            else"
+            "                totalcooc[neighbourid] = slice[neighbourid];"
+            "        }"   
+            "    }"
+            "    return totalcooc;"
+            "}"
         )
\ No newline at end of file
diff --git a/cabletokenizer.py b/cabletokenizer.py
index ca94000..8c432dd 100644
--- a/cabletokenizer.py
+++ b/cabletokenizer.py
@@ -171,17 +171,18 @@ def ngramize(self, document, doc_ngrams, minSize, maxSize, tagTokens, filters, s
                     ngram = self.storage.ngrams.find_one({'_id': ngid})
                     if ngram is not None:
                         # general edges updates
+                        #ngram.edges.label[label] += 1;
+                        #ngram.edges.Document[document['_id']] += 1;
+                        #ngram.edges.postag[label] = tags[i:n+i];
                         self.storage.ngrams.update(
                             { '_id': ngid },
                             {
                                 "$inc" : {
-                                    'edges': {
-                                        'label' : { label : 1 },
-                                        'Document' : { document['_id'] : 1 }
-                                    }
+                                    'edges.label': { label : 1 },
+                                    'edges.Document' : { document['_id'] : 1 }
                                 },
-                                'edges': {
-                                    'postag' : { label: tags[i:n+i] }
+                                "$set": {
+                                    'edges.postag' : { label: tags[i:n+i] }
                                 }
                             }
                         )
@@ -189,11 +190,7 @@ def ngramize(self, document, doc_ngrams, minSize, maxSize, tagTokens, filters, s
                             { '_id': document['id'] },
                             {
                                 '$inc': {
-                                    'edges': {
-                                        'NGram': {
-                                            ngid : 1
-                                        }
-                                    }
+                                    'edges.NGram': { ngid : 1 }
                                 }
                             }
                         )
@@ -221,12 +218,8 @@ def ngramize(self, document, doc_ngrams, minSize, maxSize, tagTokens, filters, s
                                 self.storage.cables.update(
                                     { '_id': document['id'] },
                                     {
-                                        '$inc': {
-                                            'edges': {
-                                                'NGram': {
-                                                    ngid : 1
-                                                }
-                                            }
+                                        '$set': {
+                                            'edges.NGram': { ngid : 1 }
                                         }
                                     }
                                 )
diff --git a/execute.py b/execute.py
index 5d02f91..20ee8d3 100644
--- a/execute.py
+++ b/execute.py
@@ -51,5 +51,5 @@ def get_parser():
     if options.execute == 'print':
         for ngram in mongoconnection["cablegate"].ngrams.find().limit(10):
             logging.debug( ngram )
-        for doc in mongoconnection["cablegate"].cables.find().limit(2):
+        for doc in mongoconnection["cablegate"].cables.find({"$ne": { edges.NGram.length: 0 }}).limit(2):
             logging.debug( doc )
\ No newline at end of file