Method for adaptive conversation state management with filtering operators applied dynamically as part of a conversational interface

A method for processing search requests received from the user, the method comprising:

• receiving, in a conversation state space defined by a first filter, the first filter comprising a first term of a first attribute type, a first speech input;
• identifying in the first speech input a second filter comprising a first term of a second attribute type;
• selecting a first set of content items based on the first filter and the second filter;
• generating for display the first set of content items;
• receiving a second speech input;
• identifying in the second speech input a third filter comprising a second term of the second attribute type;
• determining whether any content items match the first filter, the second filter, and the third filter;
• in response to determining that a content item matches the first filter, the second filter, and the third filter:
• selecting a second set of content items based on the first filter, the second filter, and the third filter;
• and
• generating for display the second set of content items;
• and
• in response to determining that no content items match the first filer, the second filter, and the third filter:
• replacing the second filter with the third filter;
• selecting a third set of content items based on the first filter and the third filter;
• and
• generating for display third set of content items.

A system for processing search requests received from a user, the system comprising:

• input circuitry configured to receive speech inputs;
• and
• control circuitry configured to:
• receive, using the input circuitry, in a conversation state space defined by a first filter, the first filter comprising a first term of a first attribute type, a first speech input;
• identify in the first speech input a second filter comprising a first term of a second attribute type;
• select a first set of content items based on the first filter and the second filter;
• generating for display the first set of content items;
• receive, using the input circuitry, a second speech input;
• identify in the second speech input a third filter comprising a second term of the second attribute type;
• determine whether any content items match the first filter, the second filter, and the third filter;
• in response to determining that a content item matches the first filter, the second filter, and the third filter:
• select a second set of content items based on the first filter, the second filter, and the third filter;
• and
• generate for display the second set of content items;
• and
• in response to determining that no content items match the first filer, the second filter, and the third filter:
• replace the second filter with the third filter;
• select a third set of content items based on the first filter and the third filter;
• and
• generate for display third set of content items.