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259 lines
14 KiB
259 lines
14 KiB
// RankingProfile.java
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// -------------------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2006
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// Created: 05.02.2006
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.search.ranking;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.search.snippet.ContentDomain;
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public class RankingProfile {
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// pre-sort attributes
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public static final String APPEMPH = "appemph";
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public static final String APPURL = "appurl";
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public static final String APP_DC_CREATOR = "appauthor"; // the author field
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public static final String APP_DC_DESCRIPTION = "appref"; // references to the source (content of <a> tag)
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public static final String APP_DC_SUBJECT = "apptags"; // tags
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public static final String APP_DC_TITLE = "appdescr"; // title of page
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public static final String AUTHORITY = "authority";
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public static final String CATHASAPP = "cathasapp";
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public static final String CATHASAUDIO = "cathasaudio";
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public static final String CATHASIMAGE = "cathasimage";
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public static final String CATHASVIDEO = "cathasvideo";
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public static final String CATINDEXOF = "catindexof";
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public static final String DATE = "date";
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public static final String DOMLENGTH = "domlength";
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public static final String HITCOUNT = "hitcount";
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public static final String LANGUAGE = "language"; // ranking of preferred language
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public static final String LLOCAL = "llocal";
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public static final String LOTHER = "lother";
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public static final String PHRASESINTEXT = "phrasesintext";
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public static final String POSINPHRASE = "posinphrase";
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public static final String POSINTEXT = "posintext";
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public static final String POSOFPHRASE = "posofphrase";
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public static final String TERMFREQUENCY = "tf";
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public static final String URLCOMPS = "urlcomps";
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public static final String URLLENGTH = "urllength";
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public static final String WORDDISTANCE = "worddistance";
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public static final String WORDSINTEXT = "wordsintext";
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public static final String WORDSINTITLE = "wordsintitle";
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public static final String YBR = "ybr";
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// post-sort predicates
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public static final String URLCOMPINTOPLIST = "urlcompintoplist";
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public static final String DESCRCOMPINTOPLIST = "descrcompintoplist";
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public static final String PREFER = "prefer";
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// coefficient max/min values
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public static final int COEFF_MIN = 0;
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public static final int COEFF_MAX = 15;
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public int
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coeff_domlength, coeff_ybr, coeff_date, coeff_wordsintitle, coeff_wordsintext, coeff_phrasesintext,
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coeff_llocal, coeff_lother, coeff_urllength, coeff_urlcomps, coeff_hitcount,
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coeff_posintext, coeff_posofphrase, coeff_posinphrase, coeff_authority, coeff_worddistance,
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coeff_appurl, coeff_app_dc_title, coeff_app_dc_creator, coeff_app_dc_subject, coeff_app_dc_description, coeff_appemph,
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coeff_catindexof, coeff_cathasimage, coeff_cathasaudio, coeff_cathasvideo, coeff_cathasapp,
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coeff_urlcompintoplist, coeff_descrcompintoplist, coeff_prefer,
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coeff_termfrequency, coeff_language;
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public RankingProfile(final ContentDomain mediatype) {
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// set default-values
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this.coeff_appemph = 5;
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this.coeff_appurl = 11;
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this.coeff_app_dc_creator = 1;
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this.coeff_app_dc_description = 4;
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this.coeff_app_dc_subject = 2;
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this.coeff_app_dc_title = 8;
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this.coeff_authority = 5;
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this.coeff_cathasapp = (mediatype == ContentDomain.APP) ? 15 : 0;
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this.coeff_cathasaudio = (mediatype == ContentDomain.AUDIO) ? 15 : 0;
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this.coeff_cathasimage = (mediatype == ContentDomain.IMAGE) ? 15 : 0;
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this.coeff_cathasvideo = (mediatype == ContentDomain.VIDEO) ? 15 : 0;
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this.coeff_catindexof = (mediatype == ContentDomain.TEXT) ? 0 : 15;
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this.coeff_date = 7;
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this.coeff_domlength = 9;
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this.coeff_hitcount = 1;
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this.coeff_language = 2;
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this.coeff_llocal = 0;
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this.coeff_lother = 7;
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this.coeff_phrasesintext = 0;
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this.coeff_posinphrase = 0;
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this.coeff_posintext = 4;
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this.coeff_posofphrase = 0;
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this.coeff_termfrequency = 6;
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this.coeff_urlcomps = 7;
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this.coeff_urllength = 6;
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this.coeff_worddistance = 15;
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this.coeff_wordsintext = 3;
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this.coeff_wordsintitle = 2;
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this.coeff_ybr = 8;
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this.coeff_urlcompintoplist = 15;
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this.coeff_descrcompintoplist = 15;
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this.coeff_prefer = 15;
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}
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public RankingProfile(final String prefix, String profile) {
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this(ContentDomain.TEXT); // set defaults
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if ((profile != null) && (profile.length() > 0)) {
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//parse external form
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final Map<String, Integer> coeff = new HashMap<String, Integer>(40);
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final String[] elts;
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if (profile.length() > 0 && profile.charAt(0) == '{' && profile.endsWith("}")) {
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profile = profile.substring(1, profile.length() - 1);
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}
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profile = profile.trim();
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if (profile.indexOf('&') > 0) elts = profile.split("&"); else elts = profile.split(",");
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int p;
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final int s = (prefix == null) ? 0 : prefix.length();
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String e;
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for (final String elt : elts) {
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e = elt.trim();
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if ((s == 0) || (e.startsWith(prefix))) {
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p = e.indexOf('=');
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if (p < 0) System.out.println("DEBUG: bug in plasmaSearchRankingProfile: e = " + e);
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if ((p > 0) && (e.length() > p + 1)) try {
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coeff.put(e.substring(s, p), Integer.valueOf(Integer.parseInt(e.substring(p + 1))));
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} catch (final NumberFormatException e1) {
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System.out.println("wrong parameter: " + e.substring(s, p) + "=" + e.substring(p + 1));
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Log.logException(e1);
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}
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}
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}
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this.coeff_domlength = parseMap(coeff, DOMLENGTH, this.coeff_domlength);
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this.coeff_ybr = parseMap(coeff, YBR, this.coeff_ybr);
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this.coeff_date = parseMap(coeff, DATE, this.coeff_date);
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this.coeff_wordsintitle = parseMap(coeff, WORDSINTITLE, this.coeff_wordsintitle);
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this.coeff_wordsintext = parseMap(coeff, WORDSINTEXT, this.coeff_wordsintext);
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this.coeff_phrasesintext = parseMap(coeff, PHRASESINTEXT, this.coeff_phrasesintext);
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this.coeff_llocal = parseMap(coeff, LLOCAL, this.coeff_llocal);
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this.coeff_lother = parseMap(coeff, LOTHER, this.coeff_lother);
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this.coeff_urllength = parseMap(coeff, URLLENGTH, this.coeff_urllength);
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this.coeff_urlcomps = parseMap(coeff, URLCOMPS, this.coeff_urlcomps);
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this.coeff_hitcount = parseMap(coeff, HITCOUNT, this.coeff_hitcount);
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this.coeff_posintext = parseMap(coeff, POSINTEXT, this.coeff_posintext);
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this.coeff_posofphrase = parseMap(coeff, POSOFPHRASE, this.coeff_posofphrase);
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this.coeff_posinphrase = parseMap(coeff, POSINPHRASE, this.coeff_posinphrase);
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this.coeff_authority = parseMap(coeff, AUTHORITY, this.coeff_authority);
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this.coeff_worddistance = parseMap(coeff, WORDDISTANCE, this.coeff_worddistance);
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this.coeff_appurl = parseMap(coeff, APPURL, this.coeff_appurl);
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this.coeff_app_dc_title = parseMap(coeff, APP_DC_TITLE, this.coeff_app_dc_title);
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this.coeff_app_dc_creator = parseMap(coeff, APP_DC_CREATOR, this.coeff_app_dc_creator);
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this.coeff_app_dc_subject = parseMap(coeff, APP_DC_SUBJECT, this.coeff_app_dc_subject);
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this.coeff_app_dc_description = parseMap(coeff, APP_DC_DESCRIPTION, this.coeff_app_dc_description);
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this.coeff_appemph = parseMap(coeff, APPEMPH, this.coeff_appemph);
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this.coeff_catindexof = parseMap(coeff, CATINDEXOF, this.coeff_catindexof);
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this.coeff_cathasimage = parseMap(coeff, CATHASIMAGE, this.coeff_cathasimage);
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this.coeff_cathasaudio = parseMap(coeff, CATHASAUDIO, this.coeff_cathasaudio);
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this.coeff_cathasvideo = parseMap(coeff, CATHASVIDEO, this.coeff_cathasvideo);
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this.coeff_cathasapp = parseMap(coeff, CATHASAPP, this.coeff_cathasapp);
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this.coeff_termfrequency = parseMap(coeff, TERMFREQUENCY, this.coeff_termfrequency);
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this.coeff_urlcompintoplist = parseMap(coeff, URLCOMPINTOPLIST, this.coeff_urlcompintoplist);
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this.coeff_descrcompintoplist = parseMap(coeff, DESCRCOMPINTOPLIST, this.coeff_descrcompintoplist);
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this.coeff_prefer = parseMap(coeff, PREFER, this.coeff_prefer);
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this.coeff_language = parseMap(coeff, LANGUAGE, this.coeff_language);
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}
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}
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private static int parseMap(final Map<String, Integer> coeff, final String attr, final int dflt) {
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if (!coeff.containsKey(attr))
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return dflt;
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return (coeff.get(attr)).intValue();
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}
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public String toExternalString() {
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return toExternalMap("").toString();
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}
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public Map<String, String> toExternalMap(final String prefix) {
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final Map<String, String> ext = preToExternalMap(prefix);
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ext.putAll(postToExternalMap(prefix));
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return ext;
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}
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public Map<String, String> preToExternalMap(final String prefix) {
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final Map<String, String> ext = new LinkedHashMap<String, String>(40);
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ext.put(prefix + APPEMPH, Integer.toString(this.coeff_appemph));
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ext.put(prefix + APPURL, Integer.toString(this.coeff_appurl));
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ext.put(prefix + APP_DC_CREATOR, Integer.toString(this.coeff_app_dc_creator));
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ext.put(prefix + APP_DC_DESCRIPTION, Integer.toString(this.coeff_app_dc_description));
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ext.put(prefix + APP_DC_SUBJECT, Integer.toString(this.coeff_app_dc_subject));
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ext.put(prefix + APP_DC_TITLE, Integer.toString(this.coeff_app_dc_title));
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ext.put(prefix + AUTHORITY, Integer.toString(this.coeff_authority));
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ext.put(prefix + CATHASAPP, Integer.toString(this.coeff_cathasapp));
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ext.put(prefix + CATHASAUDIO, Integer.toString(this.coeff_cathasaudio));
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ext.put(prefix + CATHASIMAGE, Integer.toString(this.coeff_cathasimage));
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ext.put(prefix + CATHASVIDEO, Integer.toString(this.coeff_cathasvideo));
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ext.put(prefix + CATINDEXOF, Integer.toString(this.coeff_catindexof));
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ext.put(prefix + DATE, Integer.toString(this.coeff_date));
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ext.put(prefix + DOMLENGTH, Integer.toString(this.coeff_domlength));
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ext.put(prefix + HITCOUNT, Integer.toString(this.coeff_hitcount));
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ext.put(prefix + LANGUAGE, Integer.toString(this.coeff_language));
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ext.put(prefix + LLOCAL, Integer.toString(this.coeff_llocal));
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ext.put(prefix + LOTHER, Integer.toString(this.coeff_lother));
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ext.put(prefix + PHRASESINTEXT, Integer.toString(this.coeff_phrasesintext));
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ext.put(prefix + POSINPHRASE, Integer.toString(this.coeff_posinphrase));
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ext.put(prefix + POSINTEXT, Integer.toString(this.coeff_posintext));
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ext.put(prefix + POSOFPHRASE, Integer.toString(this.coeff_posofphrase));
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ext.put(prefix + TERMFREQUENCY, Integer.toString(this.coeff_termfrequency));
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ext.put(prefix + URLCOMPS, Integer.toString(this.coeff_urlcomps));
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ext.put(prefix + URLLENGTH, Integer.toString(this.coeff_urllength));
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ext.put(prefix + WORDDISTANCE, Integer.toString(this.coeff_worddistance));
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ext.put(prefix + WORDSINTEXT, Integer.toString(this.coeff_wordsintext));
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ext.put(prefix + WORDSINTITLE, Integer.toString(this.coeff_wordsintitle));
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ext.put(prefix + YBR, Integer.toString(this.coeff_ybr));
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return ext;
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}
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public Map<String, String> postToExternalMap(final String prefix) {
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final Map<String, String> ext = new LinkedHashMap<String, String>();
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ext.put(prefix + URLCOMPINTOPLIST, Integer.toString(this.coeff_urlcompintoplist));
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ext.put(prefix + DESCRCOMPINTOPLIST, Integer.toString(this.coeff_descrcompintoplist));
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ext.put(prefix + PREFER, Integer.toString(this.coeff_prefer));
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return ext;
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}
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public String toExternalURLGet(final String prefix) {
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final Map<String, String> emap = toExternalMap("");
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final StringBuilder ext = new StringBuilder(emap.size() * 40);
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for (final Map.Entry<String, String> entry: emap.entrySet()) {
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ext.append('&');
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ext.append(prefix);
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ext.append(entry.getKey());
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ext.append('=');
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ext.append(entry.getValue());
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}
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return ext.toString();
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}
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}
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