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

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

• computer readable instructions encoded on a non-transitory computer readable medium, the computer readable instructions causing a computer system to:
• provide access to a set of content items;
• receive a first speech input from a user;
• select a first subset of the set of content items based on comparing the first speech input from the user to the set of content items;
• generate the first subset of the set of content items for display;
• receive a second speech input from the user;
• access a relationship database containing relationship distances between entities;
• determine a measure of relatedness between the first speech input from a user and the second speech input from the user based on a relationship distance between a first entity corresponding to the first speech input and a second entity corresponding to the second speech input;
• upon a condition in which the relatedness measure does not exceed a threshold value:
• select a second subset of the set of content items based on comparing the second speech input from the user to the set of content items;
• and
• generate the second subset of the set of content items for display;
• and
• upon a condition in which the relatedness measure exceeds the threshold value:
• select a third subset of the content items based on comparing the first speech input from the user and the second speech input from the user to the set of content items;
• and
• generate the third subset of the set of content items for display.