- selection of ranking and timing profiles for each search git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1539 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
orbiter
19 years ago
parent
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// plasmaSearchRankingProfile.java
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// -------------------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@anomic.de
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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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// 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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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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package de.anomic.plasma;
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public class plasmaSearchRankingProfile {
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public String[] order;
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public plasmaSearchRankingProfile(String[] order) {
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this.order = order;
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}
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public String orderString() {
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return order[0] + "-" + order[1] + "-" + order[2];
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}
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public long ranking(plasmaWordIndexEntry normalizedEntry) {
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long ranking = 0;
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for (int i = 0; i < 3; i++) {
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if (this.order[i].equals(plasmaSearchQuery.ORDER_QUALITY)) ranking += normalizedEntry.getQuality() << (4 * (3 - i));
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else if (this.order[i].equals(plasmaSearchQuery.ORDER_DATE)) ranking += normalizedEntry.getVirtualAge() << (4 * (3 - i));
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else if (this.order[i].equals(plasmaSearchQuery.ORDER_YBR)) ranking += plasmaSearchPreOrder.ybr_p(normalizedEntry.getUrlHash()) << (4 * (3 - i));
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}
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ranking += (normalizedEntry.posintext() == 0) ? 0 : (255 - normalizedEntry.posintext()) << 11;
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ranking += (normalizedEntry.worddistance() == 0) ? 0 : (255 - normalizedEntry.worddistance()) << 10;
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ranking += (normalizedEntry.hitcount() == 0) ? 0 : normalizedEntry.hitcount() << 9;
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ranking += (255 - normalizedEntry.domlengthNormalized()) << 8;
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return ranking;
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}
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}
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