Deveaud Romain / mirimiri

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lib/rir/query.rb 2.61 KB
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b843bae6b   Romain Deveaud   new files + tests 
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  #!/usr/bin/env ruby
  
  # This file is a part of an Information Retrieval oriented Ruby 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/>.
  
  # General module for many purposes related to Information Retrieval.
  module RIR
  
    class Query
    end
  
    module Indri
  
      class Parameters
        attr_accessor :corpus, :memory, :count, :offset, :run_id, :print_query, :print_docs, :rule, :baseline
  
        def initialize(corpus,mem="1g",count="1000",offset="1",run_id="default",print_query=false,print_docs=false)
          @corpus      = corpus
          @memory      = mem
          @count       = count
          @offset      = offset
          @run_id      = run_id
          @print_query = print_query ? "true" : "false"
          @print_docs  = print_docs  ? "true" : "false"
        end
  
        def to_s
          h = "<parameters>
  "
          h += "<memory>#{@memory}</memory>
  "
          h += "<index>#{@corpus}</index>
  "
          h += "<count>#{@count}</count>
  "
          unless @baseline.nil?
            h += "<baseline>#{@baseline}</baseline>
  " 
          else
            h += "<rule>#{@rule}</rule>
  "
          end
          h += "<queryOffset>#{@offset}</queryOffset>
  "
          h += "<runID>#{@run_id}</runID>
  "
          h += "<printQuery>#{@print_query}</printQuery>
  "
          h += "<printDocuments>#{@print_docs}</printDocuments>
  "
  
          h
        end
      end
      
      class IndriQuery < Query
        attr_accessor :id, :query, :params, :rule
  
        def initialize(id,query,params)
b843bae6b   Romain Deveaud   new files + tests 
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          @params = params
          # Here we set the default retrieval model as Language Modeling
          # with a Dirichlet smoothing at 2500.
          # TODO: maybe a Rule class...
          @params.rule  = 'method:dirichlet,mu:2500' if @params.rule.nil?
  
          @id     = id
          @query  = query
        end
  
        def to_s
          h = @params.to_s
          h += "<query>
  "
          h += "<number>#{@id}</number>
  "
          h += "<text>#{@query}</text>
  "
          h += "</query>
  "
          h += "</parameters>"
  
          h
        end
      end
  
    end
  end