// RankingProfile.java
// -------------------------------
// part of YACY
// (C) by Michael Peter Christen; mc@yacy.net
// first published on http://www.anomic.de
// Frankfurt, Germany, 2006
// Created: 05.02.2006
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package de.anomic.search;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import de.anomic.search.QueryParams;
public class RankingProfile {
// pre-sort attributes
public static final String DOMLENGTH = "domlength";
public static final String YBR = "ybr";
public static final String DATE = "date";
public static final String WORDSINTITLE = "wordsintitle";
public static final String WORDSINTEXT = "wordsintext";
public static final String PHRASESINTEXT = "phrasesintext";
public static final String LLOCAL = "llocal";
public static final String LOTHER = "lother";
public static final String URLLENGTH = "urllength";
public static final String URLCOMPS = "urlcomps";
public static final String HITCOUNT = "hitcount";
public static final String POSINTEXT = "posintext";
public static final String POSOFPHRASE = "posofphrase";
public static final String POSINPHRASE = "posinphrase";
public static final String AUTHORITY = "authority";
public static final String WORDDISTANCE = "worddistance";
public static final String APPURL = "appurl";
public static final String APP_DC_TITLE = "appdescr"; // title of page
public static final String APP_DC_CREATOR = "appauthor"; // the author field
public static final String APP_DC_SUBJECT = "apptags"; // tags
public static final String APP_DC_DESCRIPTION = "appref"; // references to the source (content of <a> tag)
public static final String APPEMPH = "appemph";
public static final String CATINDEXOF = "catindexof";
public static final String CATHASIMAGE = "cathasimage";
public static final String CATHASAUDIO = "cathasaudio";
public static final String CATHASVIDEO = "cathasvideo";
public static final String CATHASAPP = "cathasapp";
public static final String TERMFREQUENCY = "tf";
public static final String LANGUAGE = "language"; // ranking of preferred language
// post-sort predicates
public static final String URLCOMPINTOPLIST = "urlcompintoplist";
public static final String DESCRCOMPINTOPLIST = "descrcompintoplist";
public static final String PREFER = "prefer";
// coefficient max/min values
public static final int COEFF_MIN = 0;
public static final int COEFF_MAX = 15;
public int
coeff_domlength, coeff_ybr, coeff_date, coeff_wordsintitle, coeff_wordsintext, coeff_phrasesintext,
coeff_llocal, coeff_lother, coeff_urllength, coeff_urlcomps, coeff_hitcount,
coeff_posintext, coeff_posofphrase, coeff_posinphrase, coeff_authority, coeff_worddistance,
coeff_appurl, coeff_app_dc_title, coeff_app_dc_creator, coeff_app_dc_subject, coeff_app_dc_description, coeff_appemph,
coeff_catindexof, coeff_cathasimage, coeff_cathasaudio, coeff_cathasvideo, coeff_cathasapp,
coeff_urlcompintoplist, coeff_descrcompintoplist, coeff_prefer,
coeff_termfrequency, coeff_language;
public RankingProfile(final int mediatype) {
// set default-values
coeff_domlength = 11;
coeff_ybr = 9;
coeff_date = 4;
coeff_wordsintitle = 4;
coeff_wordsintext = 2;
coeff_phrasesintext = 3;
coeff_llocal = 2;
coeff_lother = 3;
coeff_urllength = 13;
coeff_urlcomps = 12;
coeff_hitcount = 9;
coeff_posintext = 10;
coeff_posofphrase = 8;
coeff_posinphrase = 1;
coeff_authority = 11;
coeff_worddistance = 12;
coeff_appurl = 14;
coeff_app_dc_title = 14;
coeff_app_dc_creator = 12;
coeff_app_dc_subject = 13;
coeff_app_dc_description = 13;
coeff_appemph = 10;
coeff_catindexof = (mediatype == QueryParams.CONTENTDOM_TEXT) ? 0 : 15;
coeff_cathasimage = (mediatype == QueryParams.CONTENTDOM_IMAGE) ? 15 : 0;
coeff_cathasaudio = (mediatype == QueryParams.CONTENTDOM_AUDIO) ? 15 : 0;
coeff_cathasvideo = (mediatype == QueryParams.CONTENTDOM_VIDEO) ? 15 : 0;
coeff_cathasapp = (mediatype == QueryParams.CONTENTDOM_APP) ? 15 : 0;
coeff_termfrequency = 14;
coeff_urlcompintoplist = 3;
coeff_descrcompintoplist = 2;
coeff_prefer = 14;
coeff_language = 13;
}
public RankingProfile(final String prefix, final String profile) {
this(QueryParams.CONTENTDOM_TEXT); // set defaults
if ((profile != null) && (profile.length() > 0)) {
//parse external form
final HashMap<String, Integer> coeff = new HashMap<String, Integer>();
final String[] elts = ((profile.startsWith("{") && (profile.endsWith("}"))) ? profile.substring(1, profile.length() - 1) : profile).split(",");
int p;
final int s = (prefix == null) ? 0 : prefix.length();
String e;
for (int i = 0; i < elts.length; i++) {
e = elts[i].trim();
if ((s == 0) || (e.startsWith(prefix))) {
p = e.indexOf("=");
if (p < 0) System.out.println("DEBUG: bug in plasmaSearchRankingProfile: e = " + e);
if ((p > 0) && (e.length() > p + 1)) coeff.put(e.substring(s, p), Integer.valueOf(Integer.parseInt(e.substring(p + 1))));
}
}
coeff_domlength = parseMap(coeff, DOMLENGTH, coeff_domlength);
coeff_ybr = parseMap(coeff, YBR, coeff_ybr);
coeff_date = parseMap(coeff, DATE, coeff_date);
coeff_wordsintitle = parseMap(coeff, WORDSINTITLE, coeff_wordsintitle);
coeff_wordsintext = parseMap(coeff, WORDSINTEXT, coeff_wordsintext);
coeff_phrasesintext = parseMap(coeff, PHRASESINTEXT, coeff_phrasesintext);
coeff_llocal = parseMap(coeff, LLOCAL, coeff_llocal);
coeff_lother = parseMap(coeff, LOTHER, coeff_lother);
coeff_urllength = parseMap(coeff, URLLENGTH, coeff_urllength);
coeff_urlcomps = parseMap(coeff, URLCOMPS, coeff_urlcomps);
coeff_hitcount = parseMap(coeff, HITCOUNT, coeff_hitcount);
coeff_posintext = parseMap(coeff, POSINTEXT, coeff_posintext);
coeff_posofphrase = parseMap(coeff, POSOFPHRASE, coeff_posofphrase);
coeff_posinphrase = parseMap(coeff, POSINPHRASE, coeff_posinphrase);
coeff_authority = parseMap(coeff, AUTHORITY, coeff_authority);
coeff_worddistance = parseMap(coeff, WORDDISTANCE, coeff_worddistance);
coeff_appurl = parseMap(coeff, APPURL, coeff_appurl);
coeff_app_dc_title = parseMap(coeff, APP_DC_TITLE, coeff_app_dc_title);
coeff_app_dc_creator = parseMap(coeff, APP_DC_CREATOR, coeff_app_dc_creator);
coeff_app_dc_subject = parseMap(coeff, APP_DC_SUBJECT, coeff_app_dc_subject);
coeff_app_dc_description = parseMap(coeff, APP_DC_DESCRIPTION, coeff_app_dc_description);
coeff_appemph = parseMap(coeff, APPEMPH, coeff_appemph);
coeff_catindexof = parseMap(coeff, CATINDEXOF, coeff_catindexof);
coeff_cathasimage = parseMap(coeff, CATHASIMAGE, coeff_cathasimage);
coeff_cathasaudio = parseMap(coeff, CATHASAUDIO, coeff_cathasaudio);
coeff_cathasvideo = parseMap(coeff, CATHASVIDEO, coeff_cathasvideo);
coeff_cathasapp = parseMap(coeff, CATHASAPP, coeff_cathasapp);
coeff_termfrequency = parseMap(coeff, TERMFREQUENCY, coeff_termfrequency);
coeff_urlcompintoplist = parseMap(coeff, URLCOMPINTOPLIST, coeff_urlcompintoplist);
coeff_descrcompintoplist = parseMap(coeff, DESCRCOMPINTOPLIST, coeff_descrcompintoplist);
coeff_prefer = parseMap(coeff, PREFER, coeff_prefer);
coeff_language = parseMap(coeff, LANGUAGE, coeff_language);
}
}
private static int parseMap(final HashMap<String, Integer> coeff, final String attr, final int dflt) {
if (!coeff.containsKey(attr))
return dflt;
return (coeff.get(attr)).intValue();
}
public String toExternalString() {
return toExternalMap("").toString();
}
public Map<String, String> toExternalMap(final String prefix) {
final Map<String, String> ext = preToExternalMap(prefix);
ext.putAll(postToExternalMap(prefix));
return ext;
}
public Map<String, String> preToExternalMap(final String prefix) {
final Map<String, String> ext = new HashMap<String, String>();
ext.put(prefix + DOMLENGTH, Integer.toString(coeff_domlength));
ext.put(prefix + YBR, Integer.toString(coeff_ybr));
ext.put(prefix + DATE, Integer.toString(coeff_date));
ext.put(prefix + WORDSINTITLE, Integer.toString(coeff_wordsintitle));
ext.put(prefix + WORDSINTEXT, Integer.toString(coeff_wordsintext));
ext.put(prefix + PHRASESINTEXT, Integer.toString(coeff_phrasesintext));
ext.put(prefix + LLOCAL, Integer.toString(coeff_llocal));
ext.put(prefix + LOTHER, Integer.toString(coeff_lother));
ext.put(prefix + URLLENGTH, Integer.toString(coeff_urllength));
ext.put(prefix + URLCOMPS, Integer.toString(coeff_urlcomps));
ext.put(prefix + HITCOUNT, Integer.toString(coeff_hitcount));
ext.put(prefix + POSINTEXT, Integer.toString(coeff_posintext));
ext.put(prefix + POSOFPHRASE, Integer.toString(coeff_posofphrase));
ext.put(prefix + POSINPHRASE, Integer.toString(coeff_posinphrase));
ext.put(prefix + AUTHORITY, Integer.toString(coeff_authority));
ext.put(prefix + WORDDISTANCE, Integer.toString(coeff_worddistance));
ext.put(prefix + APPURL, Integer.toString(coeff_appurl));
ext.put(prefix + APP_DC_TITLE, Integer.toString(coeff_app_dc_title));
ext.put(prefix + APP_DC_CREATOR, Integer.toString(coeff_app_dc_creator));
ext.put(prefix + APP_DC_SUBJECT, Integer.toString(coeff_app_dc_subject));
ext.put(prefix + APP_DC_DESCRIPTION, Integer.toString(coeff_app_dc_description));
ext.put(prefix + APPEMPH, Integer.toString(coeff_appemph));
ext.put(prefix + CATINDEXOF, Integer.toString(coeff_catindexof));
ext.put(prefix + CATHASIMAGE, Integer.toString(coeff_cathasimage));
ext.put(prefix + CATHASAUDIO, Integer.toString(coeff_cathasaudio));
ext.put(prefix + CATHASVIDEO, Integer.toString(coeff_cathasvideo));
ext.put(prefix + CATHASAPP, Integer.toString(coeff_cathasapp));
ext.put(prefix + TERMFREQUENCY, Integer.toString(coeff_termfrequency));
ext.put(prefix + LANGUAGE, Integer.toString(coeff_language));
return ext;
}
public Map<String, String> postToExternalMap(final String prefix) {
final Map<String, String> ext = new HashMap<String, String>();
ext.put(prefix + URLCOMPINTOPLIST, Integer.toString(coeff_urlcompintoplist));
ext.put(prefix + DESCRCOMPINTOPLIST, Integer.toString(coeff_descrcompintoplist));
ext.put(prefix + PREFER, Integer.toString(coeff_prefer));
return ext;
}
public String toExternalURLGet(final String prefix) {
final Iterator<Map.Entry<String, String>> i = toExternalMap("").entrySet().iterator();
Map.Entry<String, String> entry;
final StringBuilder ext = new StringBuilder();
while (i.hasNext()) {
entry = i.next();
ext.append("&");
ext.append(prefix);
ext.append(entry.getKey());
ext.append("=");
ext.append(entry.getValue());
}
return new String(ext);
}
}