diff --git a/htroot/Vocabulary_p.html b/htroot/Vocabulary_p.html
index 30226a0ca..91c272d28 100644
--- a/htroot/Vocabulary_p.html
+++ b/htroot/Vocabulary_p.html
@@ -109,7 +109,13 @@ To see a list of all APIs, please visit the <a href="http://www.yacy-websuche.de
         <dt>Vocabulary Name</dt><dd><input type="text" name="discovername" value="" size="16" maxlength="128" /></dd>
         <dt>Objectspace</dt><dd><input type="text" name="discoverobjectspace" value="http://" size="78" maxlength="128" />
             <div id="searchresults"></div></dd>
-        <dt>Discover Terms from</dt><dd><input type="radio" name="discovermethod" value="path" checked="checked" />object link file name&nbsp;&nbsp;<input type="radio" name="discovermethod" value="title" />object page title&nbsp;&nbsp;<input type="radio" name="discovermethod" value="titlesplitted" />object page title (splitted)&nbsp;&nbsp;<input type="radio" name="discovermethod" value="author" />object page author</dd>
+        <dt>Discover Terms:</dt>
+        <dd>
+        <input type="radio" name="discovermethod" value="none" checked="checked" />no auto-discovery (empty vocabulary)&nbsp;&nbsp;
+        <input type="radio" name="discovermethod" value="path" />from file name&nbsp;&nbsp;
+        <input type="radio" name="discovermethod" value="title" />from page title&nbsp;&nbsp;
+        <input type="radio" name="discovermethod" value="titlesplitted" />from page title (splitted)&nbsp;&nbsp;
+        <input type="radio" name="discovermethod" value="author" />from page author</dd>
         <dt></dt><dd><input type="submit" name="create" value="Create" /></dd>
       </dl>
     </fieldset>
diff --git a/htroot/Vocabulary_p.java b/htroot/Vocabulary_p.java
index 2f6ceaa56..a3604a177 100644
--- a/htroot/Vocabulary_p.java
+++ b/htroot/Vocabulary_p.java
@@ -64,55 +64,58 @@ public class Vocabulary_p {
                         if (discoveruri == null) discoverobjectspace = "";
                         Map<String, Tagging.SOTuple> table = new TreeMap<String, Tagging.SOTuple>();
                         File propFile = LibraryProvider.autotagging.getVocabularyFile(discovername);
+                        boolean discoverNot = post.get("discovermethod", "").equals("none");
                         boolean discoverFromPath = post.get("discovermethod", "").equals("path");
                         boolean discoverFromTitle = post.get("discovermethod", "").equals("title");
                         boolean discoverFromTitleSplitted = post.get("discovermethod", "").equals("titlesplitted");
                         boolean discoverFromAuthor = post.get("discovermethod", "").equals("author");
                         Segment segment = sb.index;
-                        Iterator<DigestURI> ui = segment.urlSelector(discoveruri, 600000L, 100000);
                         String t;
-                        while (ui.hasNext()) {
-                            DigestURI u = ui.next();
-                            String u0 = u.toNormalform(true);
-                            t = "";
-                            if (discoverFromPath) {
-                                int exp = u0.lastIndexOf('.');
-                                if (exp < 0) continue;
-                                int slp = u0.lastIndexOf('/', exp);
-                                if (slp < 0) continue;
-                                t = u0.substring(slp, exp);
-                                int p;
-                                while ((p = t.indexOf(':')) >= 0) t = t.substring(p + 1);
-                                while ((p = t.indexOf('=')) >= 0) t = t.substring(p + 1);
-                            }
-                            if (discoverFromTitle || discoverFromTitleSplitted) {
-                                URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
-                                if (m != null) t = m.dc_title();
-                                if (t.endsWith(".jpg") || t.endsWith(".gif")) continue;
-                            }
-                            if (discoverFromAuthor) {
-                                URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
-                                if (m != null) t = m.dc_creator();
-                            }
-                            t = t.replaceAll("_", " ").replaceAll("\"", " ").replaceAll("'", " ").replaceAll(",", " ").replaceAll("  ", " ").trim();
-                            if (t.isEmpty()) continue;
-                            if (discoverFromTitleSplitted) {
-                                String[] ts = t.split(" ");
-                                for (String s: ts) {
-                                    if (s.isEmpty()) continue;
-                                    if (s.endsWith(".jpg") || s.endsWith(".gif")) continue;
-                                    table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
+                        if (!discoverNot) {
+                            Iterator<DigestURI> ui = segment.urlSelector(discoveruri, 600000L, 100000);
+                            while (ui.hasNext()) {
+                                DigestURI u = ui.next();
+                                String u0 = u.toNormalform(true);
+                                t = "";
+                                if (discoverFromPath) {
+                                    int exp = u0.lastIndexOf('.');
+                                    if (exp < 0) continue;
+                                    int slp = u0.lastIndexOf('/', exp);
+                                    if (slp < 0) continue;
+                                    t = u0.substring(slp, exp);
+                                    int p;
+                                    while ((p = t.indexOf(':')) >= 0) t = t.substring(p + 1);
+                                    while ((p = t.indexOf('=')) >= 0) t = t.substring(p + 1);
+                                }
+                                if (discoverFromTitle || discoverFromTitleSplitted) {
+                                    URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
+                                    if (m != null) t = m.dc_title();
+                                    if (t.endsWith(".jpg") || t.endsWith(".gif")) continue;
+                                }
+                                if (discoverFromAuthor) {
+                                    URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
+                                    if (m != null) t = m.dc_creator();
                                 }
-                            } else if (discoverFromAuthor) {
-                                String[] ts = t.split(";"); // author names are often separated by ';'
-                                for (String s: ts) {
-                                    if (s.isEmpty()) continue;
-                                    int p = s.indexOf(','); // check if there is a reversed method to mention the name
-                                    if (p >= 0) s = s.substring(p + 1).trim() + " " + s.substring(0, p).trim();
-                                    table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
+                                t = t.replaceAll("_", " ").replaceAll("\"", " ").replaceAll("'", " ").replaceAll(",", " ").replaceAll("  ", " ").trim();
+                                if (t.isEmpty()) continue;
+                                if (discoverFromTitleSplitted) {
+                                    String[] ts = t.split(" ");
+                                    for (String s: ts) {
+                                        if (s.isEmpty()) continue;
+                                        if (s.endsWith(".jpg") || s.endsWith(".gif")) continue;
+                                        table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
+                                    }
+                                } else if (discoverFromAuthor) {
+                                    String[] ts = t.split(";"); // author names are often separated by ';'
+                                    for (String s: ts) {
+                                        if (s.isEmpty()) continue;
+                                        int p = s.indexOf(','); // check if there is a reversed method to mention the name
+                                        if (p >= 0) s = s.substring(p + 1).trim() + " " + s.substring(0, p).trim();
+                                        table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
+                                    }
+                                } else {
+                                    table.put(t, new Tagging.SOTuple(Tagging.normalizeTerm(t), u0));
                                 }
-                            } else {
-                                table.put(t, new Tagging.SOTuple(Tagging.normalizeTerm(t), u0));
                             }
                         }
                         Tagging newvoc = new Tagging(discovername, propFile, discoverobjectspace, table);