Personalized search filter and notification system

A system for sending push notifications of personalized content items to client devices, comprising:

• a processor;
• and
• memory comprising processor-executable instructions that when executed by the processor cause the processor to implement:
• a receiving component configured to:
• receive an input associated with a user;
• an input expansion component configured to:
• expand the input to obtain an expanded user interest comprising at least one of a category associated with the input or a topic associated with the input for the user, the expanding comprising:
• performing a search query using the input;
• obtaining a plurality of content items based upon the search query;
• and
• at least one of:
• processing two or more content items, of the plurality of content items, identified based upon the input through a categorizer to (i) determine the category and (ii) include the category in the expanded user interest responsive to determining that a majority of the two or more content items processed through the categorizer are associated with the category;
• or
• processing two or more content items, of the plurality of content items, identified based upon the input through a topic model to (i) determine the topic and (ii) include the topic in the expanded user interest responsive to determining that a majority of the two or more content items processed through the topic model are associated with the topic;
• a filtering component configured to:
• filter content items from a content source based upon the expanded user interest to obtain a set of filtered content items;
• a ranking component configured to:
• rank the set of filtered content items based upon a ranking metric to create a ranked set of filtered content items;
• and
• a notification component configured to:
• construct a push notification comprising one or more filtered content items from the ranked set of filtered content items;
• and
• controlling a graphical user interface of a remote device to display the push notification as a device alert notification.

A non-transitory machine readable medium having stored thereon processor-executable instructions that when executed cause performance of operations, the operations comprising:

• receiving an input associated with a user;
• expanding the input to obtain an expanded user interest comprising at least one of a category or a topic associated with the input for the user, the expanding comprising:
• performing a search query using the input;
• obtaining a plurality of content items based upon the search query;
• determining that a majority of the plurality of content items are associated with at least one of the category or the topic;
• and
• including at least one of the category or the topic in the expanded user interest;
• filtering content items from a content source based upon the expanded user interest to obtain a set of filtered content items, the filtering comprising:
• assigning a first similarity score to a first content item of the content items based upon the expanded user interest;
• and
• responsive to determining that the first similarity score of the first content item exceeds a threshold, including the first content item in the set of filtered content items;
• constructing a push notification comprising one or more filtered content items from the set of filtered content items;
• and
• controlling a graphical user interface of a remote device to display the push notification as a device alert notification.