Package com.viglet.turing.sn.ac

Class TurSNSuggestionFilter

java.lang.Object
com.viglet.turing.sn.ac.TurSNSuggestionFilter
public class TurSNSuggestionFilter extends Object
The SuggestionFilter class is responsible for filtering a list of suggestions based on a specified strategy and a list of stop words. It currently supports two strategies: DEFAULT and AUTOMATON.
  • The DEFAULT strategy follows the original filter implemented in "TurSNAutoComplete".
  • The AUTOMATON strategy uses a finite state machine to filter suggestions. The behaviour of this strategy filters suggestion for a single word, if the query has an space at the end, it will consider the query as a two-word query and will suggests a next word for the query. It will consider a stop word followed by a non-stop as a valid suggestion.
Since:
0.3.9
Author:
Gabriel F. Gomazako

  • Constructor Details

    • TurSNSuggestionFilter

      public TurSNSuggestionFilter(List<String> stopWords)

  • Method Details

    • defaultStrategyConfig

      public void defaultStrategyConfig(int numberOfWordsFromQuery)
      Configures the suggestion filter to use the default strategy - Legacy strategy.
      Parameters:
      numberOfWordsFromQuery - the number of words from the query to be considered in the suggestion filter.

    • defaultStrategyConfig

      public void defaultStrategyConfig(int numberOfWordsFromQuery, boolean useTermsQueryEqualsAutoComplete)
      Configures the default strategy for suggestions - Legacy strategy.
      Parameters:
      numberOfWordsFromQuery - the number of words to consider from the query.
      useTermsQueryEqualsAutoComplete - flag indicating whether to use terms query equals auto-complete.

    • automatonStrategyConfig

      public void automatonStrategyConfig(int numberOfWordsFromQuery)
      Configures the suggestion filter to use the automaton strategy - New strategy.
      Parameters:
      numberOfWordsFromQuery - the number of words from the query to be used in the automaton strategy

    • filter

      public List<String> filter(List<String> suggestions)
      Filters a list of suggestions based on the defined strategy.
      Parameters:
      suggestions - the list of suggestions to be filtered
      Returns:
      a list of filtered suggestions based on the strategy
      Throws:
      IllegalArgumentException - if the suggestion list is null