Extraction of keywords for generating multiple search queries

A method performed by one or more processors executing machine executable code, the method comprising:

• receiving an input question from a user, the input question being directed to an organization of a plurality of organizations, and each organization of the plurality of organization belonging to at least one category of a plurality of categories;
• applying a plurality of rules using natural language processing to the input question, at least one rule of the plurality of rules being assigned a weight dependent on a category to which the organization belongs;
• extracting, based on applying the plurality of rules, multiple collections of keywords;
• generating a plurality of search queries, each search query of the plurality of search queries including a different collection of keywords from the multiple collections of keywords;
• submitting the plurality of search queries to a database, wherein the plurality of search queries are submitted in an order based on the weight of the corresponding rule;
• receiving multiple result sets from the database in response to the plurality of submitted search queries;
• and in response to the input question, providing a final result set to the user, the final result set including a subset of documents included in the multiple result sets.

A non-transitory machine-readable medium comprising executable code which when executed by one or more processors associated with a computing device are adapted to cause the one or more processors to perform a method comprising:

• receiving an input question from a user, the input question being directed to an organization of a plurality of organizations, and each organization of the plurality of organization belonging to at least one category of a plurality of categories;
• applying a plurality of rules using natural language processing to the input question, at least one rule of the plurality of rules being assigned a weight dependent on a category to which the organization belongs;
• extracting, based on applying the plurality of rules, multiple collections of keywords;
• generating a plurality of search queries, each search query of the plurality of search queries including a different collection of keywords from the multiple collections of keywords;
• submitting the plurality of search queries to a database, wherein the plurality of search queries are submitted in an order based on the weight of the corresponding rule;
• receiving multiple result sets from the database in response to the plurality of submitted search queries;
• and in response to the input question, providing a final result set to the user, the final result set including a subset of documents included in the multiple result sets.