Merge pull request #1073 from OpenRefine/revert-1007-master

Revert " Use new algorithm for levenshtein clustering"

main/src/com/google/refine/clustering/knn/kNNClusterer.java

@@ -71,8 +71,6 @@ import edu.mit.simile.vicino.distances.JaroWinklerTFIDFDistance;
 import edu.mit.simile.vicino.distances.LevenshteinDistance;
 import edu.mit.simile.vicino.distances.PPMDistance;
 
-import edu.tsinghua.dbgroup.EditDistanceClusterer;
-
 public class kNNClusterer extends Clusterer {
 
     private Distance _distance;
@@ -150,6 +148,7 @@ public class kNNClusterer extends Clusterer {
         int _blockingNgramSize = 6;
         HashSet<String> _data;
         NGramClusterer _clusterer;
+        
         public BlockingClusteringRowVisitor(Distance d, JSONObject o) {
             _distance = d;
             _config = o;
@@ -193,48 +192,6 @@ public class kNNClusterer extends Clusterer {
         }
     }
         
-    class EditDistanceClusteringRowVisitor implements RowVisitor {
-
-        int _radius = 2;
-        EditDistanceClusterer _clusterer;
-        public EditDistanceClusteringRowVisitor(JSONObject o) {
-            try {
-                JSONObject params = o.getJSONObject("params");
-                _radius = params.getInt("radius");
-                logger.debug("Use radius: {}", _radius);
-            } catch (JSONException e) {
-                logger.debug("No parameters found, using defaults");
-            }
-            _clusterer = new EditDistanceClusterer(_radius);
-        }
-        
-        @Override
-        public void start(Project project) {
-            // nothing to do
-        }
-
-        @Override
-        public void end(Project project) {
-            // nothing to do
-        }
-        
-        @Override
-        public boolean visit(Project project, int rowIndex, Row row) {
-            Cell cell = row.getCell(_colindex);
-            if (cell != null && cell.value != null) {
-                Object v = cell.value;
-                String s = (v instanceof String) ? ((String) v) : v.toString().intern();
-                _clusterer.populate(s);
-                count(s);
-            }
-            return false;
-        }
-        
-        public List<Set<Serializable>> getClusters() {
-            return _clusterer.getClusters();
-        }
-    }
-        
     @Override
     public void initializeFromJSON(Project project, JSONObject o) throws Exception {
         super.initializeFromJSON(project, o);
@@ -243,21 +200,12 @@ public class kNNClusterer extends Clusterer {
 
     @Override
     public void computeClusters(Engine engine) {
-        if(_distance != _distances.get("levenshtein")) {
         //VPTreeClusteringRowVisitor visitor = new VPTreeClusteringRowVisitor(_distance,_config);
         BlockingClusteringRowVisitor visitor = new BlockingClusteringRowVisitor(_distance,_config);
         FilteredRows filteredRows = engine.getAllFilteredRows();
         filteredRows.accept(_project, visitor);
      
         _clusters = visitor.getClusters();
-        } else {
-            EditDistanceClusteringRowVisitor visitor = 
-                new EditDistanceClusteringRowVisitor(_config);
-            FilteredRows filteredRows = engine.getAllFilteredRows();
-            filteredRows.accept(_project, visitor);
-         
-            _clusters = visitor.getClusters();
-        }
     }
 
     public static class ValuesComparator implements Comparator<Entry<Serializable,Integer>>, Serializable {

main/webapp/modules/core/scripts/dialogs/clustering-dialog.html

@@ -33,10 +33,7 @@
           <div id="ngram-fingerprint-params" class="function-params hidden">
             <span bind="or_dialog_ngramSize"></span><input type="text" value="2" bind="ngramSize" name="ngram-size" size="2" class="param" datatype="int">
           </div> 
-          <div id="levenshtein-params" class="knn-controls function-params hidden">
+          <div class="knn-controls hidden">
-            <span style="margin-right: 1em"><span bind="or_dialog_distance"></span><input type="text" value="2" bind="editDistance" name="radius" size="2" class="param" datatype="int"></span>
-          </div> 
-          <div id="PPM-params" class="knn-controls function-params hidden">
             <span style="margin-right: 1em"><span bind="or_dialog_radius"></span><input type="text" value="1.0" bind="radius" name="radius" size="2" class="param" datatype="float"></span>
             <span><span bind="or_dialog_blockChars"></span><input type="text" value="6" bind="ngramBlock" name="blocking-ngram-size" size="2" class="param" datatype="int"></span>
           </div> 

main/webapp/modules/core/scripts/dialogs/clustering-dialog.js

@@ -66,7 +66,6 @@ ClusteringDialog.prototype._createDialog = function() {
     this._elmts.or_dialog_ppm.html($.i18n._('core-dialogs')["ppm"]);
     this._elmts.or_dialog_ngramSize.html($.i18n._('core-dialogs')["ngram-size"]);
     this._elmts.or_dialog_radius.html($.i18n._('core-dialogs')["ngram-radius"]);
-    this._elmts.or_dialog_distance.html($.i18n._('core-dialogs')["ngram-radius"]);
     this._elmts.or_dialog_blockChars.html($.i18n._('core-dialogs')["block-chars"]);  
     this._elmts.selectAllButton.html($.i18n._('core-buttons')["select-all"]);
     this._elmts.deselectAllButton.html($.i18n._('core-buttons')["unselect-all"]);
@@ -119,7 +118,6 @@ ClusteringDialog.prototype._createDialog = function() {
     this._elmts.ngramSize.change(params_changer);
     this._elmts.radius.change(params_changer);
     this._elmts.ngramBlock.change(params_changer);
-    this._elmts.editDistance.change(params_changer);
     
     this._elmts.selectAllButton.click(function() { self._selectAll(); });
     this._elmts.deselectAllButton.click(function() { self._deselectAll(); });