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#!/usr/bin/env ruby #-- # This file is a part of the mirimiri library # # Copyright (C) 2010-2011 Romain Deveaud <romain.deveaud@gmail.com> # # 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 3 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, see <http://www.gnu.org/licenses/>. #++ module Mirimiri # These are the default stopwords provided by Lemur. Stoplist = [ |
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"a","about","above","according","across","after","afterwards","again","against", "albeit","all","almost","alone","along","already","also","although","always","am", "among","amongst","an","and","another","any","anybody","anyhow","anyone","anything", "anyway","anywhere","apart","are","around","as","at","av","be","became","because", "become","becomes","becoming","been","before","beforehand","behind","being","below", "beside","besides","between","beyond","both","but","by","can","cannot","canst", "certain","cf","choose","contrariwise","cos","could","cu","day","do","does","doesn't", "doing","dost","doth","double","down","dual","during","each","either","else", "elsewhere","enough","et","etc","even","ever","every","everybody","everyone", "everything","everywhere","except","excepted","excepting","exception","exclude", "excluding","exclusive","far","farther","farthest","few","ff","first","for", "formerly","forth","forward","from","front","further","furthermore","furthest","get", "go","had","halves","hardly","has","hast","hath","have","he","hence","henceforth", "her","here","hereabouts","hereafter","hereby","herein","hereto","hereupon","hers", "herself","him","himself","hindmost","his","hither","hitherto","how","however", "howsoever","i","ie","if","in","inasmuch","inc","include","included","including", "indeed","indoors","inside","insomuch","instead","into","inward","inwards","is", "it","its","itself","just","kind","kg","km","last","latter","latterly","less","lest", "let","like","little","ltd","many","may","maybe","me","meantime","meanwhile","might", "moreover","most","mostly","more","mr","mrs","ms","much","must","my","myself", "namely","need","neither","never","nevertheless","next","no","nobody","none", "nonetheless","noone","nope","nor","not","nothing","notwithstanding","now","nowadays", "nowhere","of","off","often","ok","on","once","one","only","onto","or","other", "others","otherwise","ought","our","ours","ourselves","out","outside","over","own", "per","perhaps","plenty","provide","quite","rather","really","round","said","sake", "same","sang","save","saw","see","seeing","seem","seemed","seeming","seems","seen", "seldom","selves","sent","several","shalt","she","should","shown","sideways","since", "slept","slew","slung","slunk","smote","so","some","somebody","somehow","someone", "something","sometime","sometimes","somewhat","somewhere","spake","spat","spoke", "spoken","sprang","sprung","stave","staves","still","such","supposing","than","that", "the","thee","their","them","themselves","then","thence","thenceforth","there", "thereabout","thereabouts","thereafter","thereby","therefore","therein","thereof", "thereon","thereto","thereupon","these","they","this","those","thou","though", "thrice","through","throughout","thru","thus","thy","thyself","till","to","together", "too","toward","towards","ugh","unable","under","underneath","unless","unlike", "until","up","upon","upward","upwards","us","use","used","using","very","via","vs", "want","was","we","week","well","were","what","whatever","whatsoever","when","whence", "whenever","whensoever","where","whereabouts","whereafter","whereas","whereat", "whereby","wherefore","wherefrom","wherein","whereinto","whereof","whereon", "wheresoever","whereto","whereunto","whereupon","wherever","wherewith","whether", "whew","which","whichever","whichsoever","while","whilst","whither","who","whoa", "whoever","whole","whom","whomever","whomsoever","whose","whosoever","why","will", "wilt","with","within","without","worse","worst","would","wow","ye","yet","year", |
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"yippee","you","your","yours","yourself","yourselves", |
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"edit", "new", "page", "article", "http", "www", "com", "org", "wikipedia", "en","html" |
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] |
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Transmap = { "\xC3\x80" => "A", "\xC3\x81" => "A", "\xC3\x82" => "A", "\xC3\x83" => "A", "\xC3\x84" => "A", "\xC3\x85" => "A", "\xC3\x86" => "AE","\xC3\x87" => "C", "\xC3\x88" => "E", "\xC3\x89" => "E", "\xC3\x8A" => "E", "\xC3\x8B" => "E", "\xC3\x8C" => "I", "\xC3\x8D" => "I", "\xC3\x8E" => "I", "\xC3\x8F" => "I", "\xC3\x90" => "D", "\xC3\x91" => "N", "\xC3\x92" => "O", "\xC3\x93" => "O", "\xC3\x94" => "O", "\xC3\x95" => "O", "\xC3\x96" => "O", "\xC3\x98" => "O", "\xC3\x99" => "U", "\xC3\x9A" => "U", "\xC3\x9B" => "U", "\xC3\x9C" => "U", "\xC3\x9D" => "Y", "\xC3\x9E" => "P", "\xC3\x9F" => "ss", "\xC3\xA0" => "a", "\xC3\xA1" => "a", "\xC3\xA2" => "a", "\xC3\xA3" => "a", "\xC3\xA4" => "a", "\xC3\xA5" => "a", "\xC3\xA6" => "ae","\xC3\xA7" => "c", "\xC3\xA8" => "e", "\xC3\xA9" => "e", "\xC3\xAA" => "e", "\xC3\xAB" => "e", "\xC3\xAC" => "i", "\xC3\xAD" => "i", "\xC3\xAE" => "i", "\xC3\xAF" => "i", "\xC3\xB0" => "o", "\xC3\xB1" => "n", "\xC3\xB2" => "o", "\xC3\xB3" => "o", "\xC3\xB4" => "o", "\xC3\xB5" => "o", "\xC3\xB6" => "o", "\xC3\xB8" => "o", "\xC3\xB9" => "u", "\xC3\xBA" => "u", "\xC3\xBB" => "u", "\xC3\xBC" => "u", "\xC3\xBD" => "y", "\xC3\xBE" => "p", "\xC3\xBF" => "y", "\xC4\x80" => "A", "\xC4\x81" => "a", "\xC4\x82" => "A", "\xC4\x83" => "a", "\xC4\x84" => "A", "\xC4\x85" => "a", "\xC4\x86" => "C", "\xC4\x87" => "c", "\xC4\x88" => "C", "\xC4\x89" => "c", "\xC4\x8A" => "C", "\xC4\x8B" => "c", "\xC4\x8C" => "C", "\xC4\x8D" => "c", "\xC4\x8E" => "D", "\xC4\x8F" => "d", "\xC4\x90" => "D", "\xC4\x91" => "d", "\xC4\x92" => "E", "\xC4\x93" => "e", "\xC4\x94" => "E", "\xC4\x95" => "e", "\xC4\x96" => "E", "\xC4\x97" => "e", "\xC4\x98" => "E", "\xC4\x99" => "e", "\xC4\x9A" => "E", "\xC4\x9B" => "e", "\xC4\x9C" => "G", "\xC4\x9D" => "g", "\xC4\x9E" => "G", "\xC4\x9F" => "g", "\xC4\xA0" => "G", "\xC4\xA1" => "g", "\xC4\xA2" => "G", "\xC4\xA3" => "g", "\xC4\xA4" => "H", "\xC4\xA5" => "h", "\xC4\xA6" => "H", "\xC4\xA7" => "h", "\xC4\xA8" => "I", "\xC4\xA9" => "i", "\xC4\xAA" => "I", "\xC4\xAB" => "i", "\xC4\xAC" => "I", "\xC4\xAD" => "i", "\xC4\xAE" => "I", "\xC4\xAF" => "i", "\xC4\xB0" => "I", "\xC4\xB1" => "i", "\xC4\xB2" => "IJ","\xC4\xB3" => "ij", "\xC4\xB4" => "J", "\xC4\xB5" => "j", "\xC4\xB6" => "K", "\xC4\xB7" => "k", "\xC4\xB8" => "k", "\xC4\xB9" => "L", "\xC4\xBA" => "l", "\xC4\xBB" => "L", "\xC4\xBC" => "l", "\xC4\xBD" => "L", "\xC4\xBE" => "l", "\xC4\xBF" => "L", "\xC5\x80" => "l", "\xC5\x81" => "L", "\xC5\x82" => "l", "\xC5\x83" => "N", "\xC5\x84" => "n", "\xC5\x85" => "N", "\xC5\x86" => "n", "\xC5\x87" => "N", "\xC5\x88" => "n", "\xC5\x89" => "n", "\xC5\x8A" => "N", "\xC5\x8B" => "n", "\xC5\x8C" => "O", "\xC5\x8D" => "o", "\xC5\x8E" => "O", "\xC5\x8F" => "o", "\xC5\x90" => "O", "\xC5\x91" => "o", "\xC5\x92" => "CE","\xC5\x93" => "ce", "\xC5\x94" => "R", "\xC5\x95" => "r", "\xC5\x96" => "R", "\xC5\x97" => "r", "\xC5\x98" => "R", "\xC5\x99" => "r", "\xC5\x9A" => "S", "\xC5\x9B" => "s", "\xC5\x9C" => "S", "\xC5\x9D" => "s", "\xC5\x9E" => "S", "\xC5\x9F" => "s", "\xC5\xA0" => "S", "\xC5\xA1" => "s", "\xC5\xA2" => "T", "\xC5\xA3" => "t", "\xC5\xA4" => "T", "\xC5\xA5" => "t", "\xC5\xA6" => "T", "\xC5\xA7" => "t", "\xC5\xA8" => "U", "\xC5\xA9" => "u", "\xC5\xAA" => "U", "\xC5\xAB" => "u", "\xC5\xAC" => "U", "\xC5\xAD" => "u", "\xC5\xAE" => "U", "\xC5\xAF" => "u", "\xC5\xB0" => "U", "\xC5\xB1" => "u", "\xC5\xB2" => "U", "\xC5\xB3" => "u", "\xC5\xB4" => "W", "\xC5\xB5" => "w", "\xC5\xB6" => "Y", "\xC5\xB7" => "y", "\xC5\xB8" => "Y", "\xC5\xB9" => "Z", "\xC5\xBA" => "z", "\xC5\xBB" => "Z", "\xC5\xBC" => "z", "\xC5\xBD" => "Z", "\xC5\xBE" => "z", "\xC6\x8F" => "E", "\xC6\xA0" => "O", "\xC6\xA1" => "o", "\xC6\xAF" => "U", "\xC6\xB0" => "u", "\xC7\x8D" => "A", "\xC7\x8E" => "a", "\xC7\x8F" => "I", "\xC7\x90" => "i", "\xC7\x91" => "O", "\xC7\x92" => "o", "\xC7\x93" => "U", "\xC7\x94" => "u", "\xC7\x95" => "U", "\xC7\x96" => "u", "\xC7\x97" => "U", "\xC7\x98" => "u", "\xC7\x99" => "U", "\xC7\x9A" => "u", "\xC7\x9B" => "U", "\xC7\x9C" => "u", "\xC7\xBA" => "A", "\xC7\xBB" => "a", "\xC7\xBC" => "AE","\xC7\xBD" => "ae", "\xC7\xBE" => "O", "\xC7\xBF" => "o", "\xC9\x99" => "e", "\xC2\x82" => ",", # High code comma "\xC2\x84" => ",,", # High code double comma "\xC2\x85" => "...", # Tripple dot "\xC2\x88" => "^", # High carat "\xC2\x91" => "\x27", # Forward single quote "\xC2\x92" => "\x27", # Reverse single quote "\xC2\x93" => "\x22", # Forward double quote "\xC2\x94" => "\x22", # Reverse double quote "\xC2\x96" => "-", # High hyphen "\xC2\x97" => "--", # Double hyphen "\xC2\xA6" => "|", # Split vertical bar "\xC2\xAB" => "<<", # Double less than "\xC2\xBB" => ">>", # Double greater than "\xC2\xBC" => "1/4", # one quarter "\xC2\xBD" => "1/2", # one half "\xC2\xBE" => "3/4", # three quarters "\xCA\xBF" => "\x27", # c-single quote "\xCC\xA8" => "", # modifier - under curve "\xCC\xB1" => "", # modifier - under line |
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# /\W/ => "" |
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} |
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end # Extention of the standard class String with useful function. class String include Mirimiri |
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def unaccent # force_encoding is needed with ruby1.9 Transmap.inject(self.force_encoding("ASCII-8BIT")) { |str, (utf8, asc)| str.gsub(utf8, asc) } end |
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# Returns +true+ if +self+ belongs to Mirimiri::Stoplist, +false+ otherwise. |
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def is_stopword? Stoplist.include?(self.downcase) end |
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def sequential_dependence_model t=0.85,o=0.10,u=0.05,field=nil d = Mirimiri::Document.new self if field.nil? ematch = d.ngrams(2).collect { |ng| "#1(#{ng})" } pmatch = d.ngrams(2).collect { |ng| "#uw8(#{ng})" } else ematch = d.ngrams(2).collect { |ng| "#1(#{ng}).(#{field})" } pmatch = d.ngrams(2).collect { |ng| "#uw8(#{ng}).(#{field})" } end if ematch.empty? if field.nil? ematch = d.words.collect { |ng| "#1(#{ng})" } pmatch = d.words.collect { |ng| "#uw8(#{ng})" } else ematch = d.words.collect { |ng| "#1(#{ng}).(#{field})" } pmatch = d.words.collect { |ng| "#uw8(#{ng}).(#{field})" } end end "#weight ( #{t} #combine( #{self} ) #{o} #combine ( #{ematch.join(" ")} ) #{u} #combine ( #{pmatch.join(" ")} ) )" end |
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# Do not use. # TODO: rewamp. find why this function is here. def remove_special_characters self.split.collect { |w| w.gsub(/\W/,' ').split.collect { |w| w.gsub(/\W/,' ').strip.sub(/\A.\z/, '')}.join(' ').strip.sub(/\A.\z/, '')}.join(' ') end # Removes all XML-like tags from +self+. # # s = "<html><body>test</body></html>" # s.strip_xml_tags! # s #=> "test" def strip_xml_tags! replace strip_with_pattern /<\/?[^>]*>/ end # Removes all XML-like tags from +self+. # # s = "<html><body>test</body></html>" # s.strip_xml_tags #=> "test" # s #=> "<html><body>test</body></html>" def strip_xml_tags dup.strip_xml_tags! end # Removes all Javascript sources from +self+. # # s = "<script type='text/javascript'> # var skin='vector', # stylepath='http://bits.wikimedia.org/skins-1.5' # </script> # # test" # s.strip_javascripts! # s #=> "test" def strip_javascripts! replace strip_with_pattern /<script type="text\/javascript">(.+?)<\/script>/m end # Removes all Javascript sources from +self+. # # s = "<script type='text/javascript'> # var skin='vector', # stylepath='http://bits.wikimedia.org/skins-1.5' # </script> # # test" # s.strip_javascripts #=> "test" def strip_javascripts dup.strip_javascripts! end def strip_stylesheets! # TODO: rewamp. dunno what is it. replace strip_with_pattern /<style type="text\/css">(.+?)<\/style>/m end def strip_stylesheets dup.strip_stylesheets! end # Removes punctuation from +self+. # # s = "hello, world. how are you?!" # s.strip_punctuation! # s # => "hello world how are you" def strip_punctuation! replace strip_with_pattern /[^a-zA-Z0-9\-\s]/ end # Removes punctuation from +self+. # # s = "hello, world. how are you?!" # s.strip_punctuation # => "hello world how are you" def strip_punctuation dup.strip_punctuation! end # Returns the text values inside all occurences of a XML tag in +self+ # # s = "four-piece in <a href='#'>Indianapolis</a>, <a href='#'>Indiana</a> at the Murat Theatre" # s.extract_xmltags_values 'a' #=> ["Indianapolis", "Indiana"] def extract_xmltags_values(tag_name) self.scan(/<#{tag_name}.*?>(.+?)<\/#{tag_name}>/).flatten end def strip_with_pattern(pattern) require 'cgi' |
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CGI::unescapeHTML(self.gsub(pattern,"")).unaccent.encode("UTF-8", {:invalid => :replace, :undef => :replace, :replace => " "}) |
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end private :strip_with_pattern end |
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module Indri class IndriPrintedDocuments < String def extract_docs self.split(/\d+ Q0 .+ \d+ -\d+.\d+ .+/).delete_if{ |x| x.empty? } end end end |