Email threading based on machine learning

A system comprising:

• one or more hardware processors;
• and
• a memory storing instructions that, when executed by the one or more hardware processors, cause the one or more hardware processors to perform operations comprising:
• training a preference model using training data obtained from feedback received from a user;
• accessing a plurality of emails addressed to a user;
• classifying each email into at least one of a plurality of categories;
• for a category of the plurality of categories, extracting one or more feature values from each email in the category;
• based on the category and the extracted feature values, grouping emails having a same feature value in the category together into a single email thread;
• based on the preference model, causing presentation of information related to the single email thread at a client device of the user;
• receiving additional feedback based on one or more interactions with the single email thread;
• and
• retraining the preference model based on the additional feedback.

A computer-storage medium comprising instructions which, when executed by one or more hardware processors of a machine, cause the machine to perform operations comprising:

• training a preference model using training data obtained from feedback received from a user;
• accessing a plurality of emails addressed to a user;
• classifying each email into at least one of a plurality of categories;
• for a category of the plurality of categories, extracting one or more feature values from each email in the category;
• based on the category and the extracted feature values, grouping emails having a same feature value in the category together into a single email thread;
• based on the preference model, causing presentation of information related to the single email thread at a client device of the user;
• receiving additional feedback based on one or more interactions with the single email thread;
• and
• retraining the preference model based on the additional feedback.