Class: SmartBrain::Retrievers::RelationalRetriever

Inherits:
Object
  • Object
show all
Defined in:
lib/smart_brain/retrievers/relational_retriever.rb

Instance Method Summary collapse

Constructor Details

#initialize(config:) ⇒ RelationalRetriever

Returns a new instance of RelationalRetriever.



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# File 'lib/smart_brain/retrievers/relational_retriever.rb', line 6

def initialize(config:)
  @config = config
end

Instance Method Details

#retrieve(query:, entities:, refs:, limit:) ⇒ Object 



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# File 'lib/smart_brain/retrievers/relational_retriever.rb', line 10

def retrieve(query:, entities:, refs:, limit:)
  terms = query.to_s.downcase.scan(/[[:alnum:]_\-\p{Han}]+/)
  entity_hits = entities.filter_map do |entity|
    score = terms.count { |t| entity[:canonical].to_s.downcase.include?(t) || entity[:name].to_s.downcase.include?(t) }
    next if score.zero?

    {
      id: "entity-#{entity[:id]}",
      source: 'memory',
      source_uri: "smartbrain://entity/#{entity[:id]}",
      title: entity[:name],
      snippet: "Entity #{entity[:kind]}: #{entity[:canonical]}",
      mode: 'relational',
      score: score.to_f,
      ref: { memory_item_id: entity[:memory_item_id] }
    }
  end

  ref_hits = refs.filter_map do |ref|
    value = ref[:ref_uri].to_s.downcase
    score = terms.count { |t| value.include?(t) }
    next if score.zero?

    {
      id: "ref-#{ref[:id]}",
      source: 'memory',
      source_uri: ref[:ref_uri],
      title: ref[:ref_type],
      snippet: ref[:ref_meta_json].to_s,
      mode: 'relational',
      score: (score * 0.8).to_f,
      ref: { turn_id: ref[:turn_id] }
    }
  end

  (entity_hits + ref_hits).sort_by { |h| -h[:score] }.first(limit)
end