Abstract: Systems and methods for presenting electronic messages are provided. In some implementations, a method includes, at a computing device having one or more processors and memory storing one or more programs for execution by the one or more processors, (A) causing to be concurrently displayed in an E-mail application (i) a first view of a message folder that includes one or more electronic messages and (ii) a user interface control indicating one or more alternate views are available for the message folder, wherein the user interface control persistently indicates the availability of the one or more alternative views and (B) hiding the user interface control, without user intervention, responsive to the occurrence of a predetermined system event.

Abstract: Systems and methods for clustering messages are provided. In some aspects, a method includes receiving a set of communications. The set of communications includes a set of messages. Each communication in at least a portion of communications in the set of communications is associated with a set of contacts. The method also includes determining a first contact list based on the set of communications. The method also includes determining a first subset of the set of messages, each message in the first subset of the set of messages being associated with a set of contacts including at least a first threshold number of contacts in the first contact list. The method also includes providing an indication of the first subset of the set of messages.

Abstract: Systems and methods for classifying a set of documents are provided. In some aspects, a method includes receiving a subset of the set of documents. The method also includes automatically determining at least one classification rule for the subset of documents based on the documents in the subset. At least a true-positive threshold proportion of documents in the subset of documents follows the at least one classification rule. At most a false-positive threshold proportion of documents in the set of documents and not in the subset of documents follow the at least one classification rule. The method also includes storing the at least one classification rule in association with the subset of documents.

Abstract: Systems and methods for presenting electronic messages are provided. In some implementations, a method includes, at a computing device having one or more processors and memory storing one or more programs for execution by the one or more processors, (A) causing to be concurrently displayed in an E-mail application (i) a first view of a message folder that includes one or more electronic messages and (ii) a user interface control indicating one or more alternate views are available for the message folder, wherein the user interface control persistently indicates the availability of the one or more alternative views and (B) hiding the user interface control, without user intervention, responsive to the occurrence of a predetermined system event.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method including generating first instructions for presenting, on a computing device, a first view of an inbox that lists multiple electronic messages and for presenting a control, concurrently with the first view of the inbox, that indicates one or more alternate views available for the inbox. Each of the alternate views separate the electronic messages within the inbox into two or more concurrently displayed sections. The method further includes providing the first instructions to the computing device.