ElasticSearch Negative Boosting

gistfile1.txt

--- 
:query: 
  :boosting: 
    :positive: 
      :filtered: 
        :query: 
          :bool: 
            :should: 
            - :text: 
                :name: 
                  :query: ruby
                  :boost: 10.0
            - :text: 
                name.partial: 
                  :query: ruby
                  :boost: 5.0
            - :text: 
                :description: 
                  :query: ruby
                  :boost: 5.0
            - :text: 
                description.partial: 
                  :query: ruby
                  :boost: 2.5
            - :text: 
                :address: 
                  :query: ruby
                  :boost: 5.0
            - :text: 
                address.partial: 
                  :query: ruby
                  :boost: 2.5
            - :text: 
                :programs: 
                  :query: ruby
                  :boost: 1.0
            - :text: 
                programs.partial: 
                  :query: ruby
                  :boost: 0.5
        :filter: 
          :or: 
          - :missing: 
              :field: date_time_end
          - :range: 
              :date_time_end: 
                :from: 2011-10-05 17:29:21
    :negative: 
      :ids: 
        :values: 
        - 105
    :negative_boost: 50.0