Yahoo! Inc.

Jayachandran Ravichandran Menon

Thyagarajapuram S Ramakrishnan

Matthias Eichstaedt

Patrick Loo

Sotiris Matzanas

Managing data collection for one or more scheduled alert messages. A primary or backup poller manager coordinates any number of poller services to access content and generate the alert messages. At a predefined period the poller manager is informed that an existing or new poller service is available for work. The poller manager provides a query to the poller service to access content in which one or more users have expressed an interest. Querying for a large number of users can be subdivided among the poller services. The poller service can also automatically expand the query if it yields insufficient content. The poller service generates the alert messages for the interested users and informs the poller manager when done. A change in content can be used to generate or update alert messages before their scheduled delivery. The poller manager prioritizes processing with a quality of service level.

Method and system for data collection for alert delivery

Delivering one or more alert messages via one or more delivery methods to one or more users who have indicated an interest in receiving the alert messages. A delivery service receives an alert document and a list of receiving users. This list indicates which users desire immediate delivery, which users desire delivery at a scheduled time, a service priority and/or other delivery criteria. Any black out period or other deferral is associated with the deferring users to prevent alert delivery during those times. For scheduled deliveries, the alert message is stored on one of a plurality of storages, based on alert type, user priority, storage loads, and/or other parameters. At the scheduled time, the stored alert message is accessed and marked for immediate delivery. The alert message is delivered as an email, instant message, short message service message, and/or the like. A history is maintained of all alert deliveries.

Method and system for delivery alerts to a user

An architecture for providing an alert message based on content that may be received as an event based feed or a time based feed in one or more formats. The architecture includes a data collection processing module for normalizing the content into a predefined data structure, and indexing the content for processing large amounts of content according to selected characteristics. A matching engine employs user queries to associate the event based content with one or more users who have indicated an interest in receiving alert messages associated with selected content. The matching engine also generates the corresponding alert messages. A poller fetches content on behalf or users at a predefined period and generates a corresponding alert message. A delivery interface determines which alert messages are to be sent immediately and which alert messages are to be scheduled for later delivery. The architecture is mirrored for scalability and backup.

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Cupertino, CA, United States of America

Jayachandran Ravichandran Menon