Automatically guess types to reconcile a column, using Stefano's trick in his "cupid" acre app.
git-svn-id: http://google-refine.googlecode.com/svn/trunk@104 7d457c2a-affb-35e4-300a-418c747d4874
This commit is contained in:
David Huynh
parent
4b2e48614b
commit
28a86dfe0f
@ -39,6 +39,7 @@ import com.metaweb.gridworks.commands.recon.DiscardReconcileCommand;
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import com.metaweb.gridworks.commands.recon.JudgeOneCellCommand;
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import com.metaweb.gridworks.commands.recon.ReconcileCommand;
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import com.metaweb.gridworks.commands.util.GetExpressionLanguageInfoCommand;
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import com.metaweb.gridworks.commands.util.GuessTypesOfColumnCommand;
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import com.metaweb.gridworks.commands.util.PreviewExpressionCommand;
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import com.metaweb.gridworks.commands.util.PreviewProtographCommand;
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@ -82,6 +83,7 @@ public class GridworksServlet extends HttpServlet {
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_commands.put("preview-expression", new PreviewExpressionCommand());
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_commands.put("get-expression-language-info", new GetExpressionLanguageInfoCommand());
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_commands.put("preview-protograph", new PreviewProtographCommand());
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_commands.put("guess-types-of-column", new GuessTypesOfColumnCommand());
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}
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@Override
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@ -0,0 +1,188 @@
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package com.metaweb.gridworks.commands.util;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.StringWriter;
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import java.net.URL;
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import java.net.URLConnection;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.json.JSONArray;
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import org.json.JSONObject;
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import org.json.JSONWriter;
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import com.metaweb.gridworks.commands.Command;
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import com.metaweb.gridworks.expr.ExpressionUtils;
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import com.metaweb.gridworks.model.Column;
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import com.metaweb.gridworks.model.Project;
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import com.metaweb.gridworks.model.Row;
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import com.metaweb.gridworks.util.ParsingUtilities;
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public class GuessTypesOfColumnCommand extends Command {
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@Override
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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try {
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Project project = getProject(request);
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String columnName = request.getParameter("columnName");
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JSONWriter writer = new JSONWriter(response.getWriter());
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writer.object();
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Column column = project.columnModel.getColumnByName(columnName);
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if (column == null) {
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writer.key("code"); writer.value("error");
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writer.key("message"); writer.value("No such column");
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} else {
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try {
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writer.key("code"); writer.value("ok");
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writer.key("types"); writer.array();
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List<TypeGroup> typeGroups = guessTypes(project, column);
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for (TypeGroup tg : typeGroups) {
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writer.object();
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writer.key("id"); writer.value(tg.id);
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writer.key("name"); writer.value(tg.name);
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writer.endObject();
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}
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writer.endArray();
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} catch (Exception e) {
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writer.key("code"); writer.value("error");
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}
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}
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writer.endObject();
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} catch (Exception e) {
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respondException(response, e);
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}
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}
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protected List<TypeGroup> guessTypes(Project project, Column column) {
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Map<String, TypeGroup> map = new HashMap<String, TypeGroup>();
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int cellIndex = column.getCellIndex();
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List<String> samples = new ArrayList<String>(10);
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for (Row row : project.rows) {
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Object value = row.getCellValue(cellIndex);
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if (!ExpressionUtils.isBlank(value)) {
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samples.add(value.toString());
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if (samples.size() >= 10) {
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break;
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}
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}
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}
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try {
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StringWriter stringWriter = new StringWriter();
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JSONWriter jsonWriter = new JSONWriter(stringWriter);
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jsonWriter.object();
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for (int i = 0; i < samples.size(); i++) {
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jsonWriter.key("q" + i + ":search");
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jsonWriter.object();
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jsonWriter.key("query"); jsonWriter.value(samples.get(i));
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jsonWriter.key("limit"); jsonWriter.value(3);
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jsonWriter.key("type_exclude"); jsonWriter.value("/common/image");
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jsonWriter.key("domain_exclude"); jsonWriter.value("/freebase");
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jsonWriter.endObject();
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}
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jsonWriter.endObject();
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StringBuffer sb = new StringBuffer();
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sb.append("http://api.freebase.com/api/service/search?indent=1&queries=");
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sb.append(ParsingUtilities.encode(stringWriter.toString()));
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URL url = new URL(sb.toString());
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URLConnection connection = url.openConnection();
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connection.setConnectTimeout(5000);
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connection.connect();
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InputStream is = connection.getInputStream();
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try {
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String s = ParsingUtilities.inputStreamToString(is);
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JSONObject o = ParsingUtilities.evaluateJsonStringToObject(s);
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for (int i = 0; i < samples.size(); i++) {
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String key = "q" + i + ":search";
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if (!o.has(key)) {
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continue;
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}
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JSONObject o2 = o.getJSONObject(key);
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if (!(o2.has("result"))) {
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continue;
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}
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JSONArray results = o2.getJSONArray("result");
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int count = results.length();
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for (int j = 0; j < count; j++) {
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JSONObject result = results.getJSONObject(j);
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double score = result.getDouble("relevance:score");
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JSONArray types = result.getJSONArray("type");
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int typeCount = types.length();
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for (int t = 0; t < typeCount; t++) {
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JSONObject type = types.getJSONObject(t);
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String id = type.getString("id");
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if (id.equals("/common/topic") ||
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(id.startsWith("/base/") && id.endsWith("/topic")) ||
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id.startsWith("/user/")
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) {
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continue;
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}
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if (map.containsKey(id)) {
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map.get(id).score += score;
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} else {
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map.put(id, new TypeGroup(id, type.getString("name"), score));
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}
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}
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}
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}
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} finally {
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is.close();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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List<TypeGroup> types = new ArrayList<TypeGroup>(map.values());
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Collections.sort(types, new Comparator<TypeGroup>() {
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public int compare(TypeGroup o1, TypeGroup o2) {
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return (int) Math.signum(o2.score - o1.score);
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}
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});
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return types;
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}
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static protected class TypeGroup {
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String id;
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String name;
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double score;
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TypeGroup(String id, String name, double score) {
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this.id = id;
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this.name = name;
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this.score = score;
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}
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}
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}
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@ -187,7 +187,7 @@ DataTableColumnHeaderUI.prototype._createMenuForColumnHeader = function(elmt) {
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label: "Start Reconciling ...",
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tooltip: "Reconcile text in this column with topics on Freebase",
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click: function() {
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new ReconDialog(self._column);
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self._doReconcile();
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}
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},
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{},
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@ -375,6 +375,19 @@ DataTableColumnHeaderUI.prototype._doTextTransformPrompt = function() {
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);
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};
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DataTableColumnHeaderUI.prototype._doReconcile = function() {
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var self = this;
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$.post(
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"/command/guess-types-of-column?" + $.param({ project: theProject.id, columnName: this._column.headerLabel }),
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null,
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function(data) {
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new ReconDialog(self._column, data.code == "ok" ? data.types : []);
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},
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"json"
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);
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};
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DataTableColumnHeaderUI.prototype._doDiscardReconResults = function() {
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this._dataTableView.doPostThenUpdate(
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"discard-reconcile",
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@ -1,5 +1,6 @@
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function ReconDialog(column) {
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function ReconDialog(column, types) {
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this._column = column;
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this._types = types;
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this._createDialog();
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}
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@ -14,13 +15,44 @@ ReconDialog.prototype._createDialog = function() {
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$('<p></p>').text("Reconcile cell values to topics of type:").appendTo(body);
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if (this._types.length > 0) {
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var createTypeChoice = function(type) {
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var div = $('<div>').appendTo(body);
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$('<input type="radio" name="recon-dialog-type-choice">')
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.attr("value", type.id)
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.appendTo(div);
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$('<span></span>').text(" " + type.name).appendTo(div);
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$('<span></span>').text(" (" + type.id + ")").appendTo(div);
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};
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for (var i = 0; i < this._types.length && i < 7; i++) {
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createTypeChoice(this._types[i]);
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}
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var divCustom = $('<div>').appendTo(body);
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$('<input type="radio" name="recon-dialog-type-choice">')
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.attr("value", "")
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.appendTo(divCustom);
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$('<span></span>').text(" Other:").appendTo(divCustom);
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}
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var type = null;
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var input = $('<input />').appendTo($('<p></p>').appendTo(body));
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input.suggest({ type : '/type/type' }).bind("fb-select", function(e, data) {
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type = data.id;
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$('input[name="recon-dialog-type-choice"][value=""]').attr("checked", "true");
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});
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$('<button></button>').text("Start Reconciling").click(function() {
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var choices = $('input[name="recon-dialog-type-choice"]:checked');
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if (choices != null && choices.length > 0 && choices[0].value != "") {
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type = choices[0].value;
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}
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if (type == null) {
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alert("Please specify a type.");
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} else {
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DialogSystem.dismissUntil(level - 1);
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$.post(
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"/command/reconcile?" + $.param({ project: theProject.id, columnName: self._column.headerLabel, type: type }),
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@ -34,6 +66,7 @@ ReconDialog.prototype._createDialog = function() {
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},
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"json"
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);
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}
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}).appendTo(footer);
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$('<button></button>').text("Cancel").click(function() {
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@ -44,3 +77,4 @@ ReconDialog.prototype._createDialog = function() {
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input[0].focus();
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};
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