摘要:
A distributed content item recommendation system comprises a central recommendation server (101) and a plurality of remote recommendation devices (103) coupled to the central recommendation server (101) via a communication network (105). The central recommendation server (101) stores content item set correlation data for sets of content items. The correlation data is used for item based collaborative filtering in recommendation processors (303) of the recommendation devices (103). A computation task processor (207) maintains a task list of content item correlation computation tasks which can be independently executed to generate content item set correlation data. A task assignment processor (209) can assign the computation tasks to remote recommendation devices (103) which comprise a processing unit (307) that calculates the associated correlation data and returns it to the recommendation server (101). The distributed recommendation system thus uses distributed computation of centrally stored correlation data thereby substantially reducing the cost and complexity of the recommendation server and/or improves the recommendations.
摘要:
A reasoning apparatus (101) is arranged to determine device locations for user profile elements of a distributed user profile. A user profile processor (201) receives a user profile which comprises a plurality of user profile elements. Each user profile element furthermore comprises associated metadata. The apparatus (101) also comprises a device profile receiver (203) that receives device profiles for a plurality of devices. A device location processor (205) proceeds to determine device locations for the user profile elements in response to the associated metadata and the device profiles. Specifically, a user profile element may be assigned to a specific device if the device profile for that device matches the metadata for the user profile element. The reasoning apparatus (101) may furthermore comprise a user profile element synchroniser (207) which synchronises the user profile elements with the appropriate devices.
摘要:
A reasoning apparatus (101) is arranged to determine device locations for user profile elements of a distributed user profile. A user profile processor (201) receives a user profile which comprises a plurality of user profile elements. Each user profile element furthermore comprises associated metadata. The apparatus (101) also comprises a device profile receiver (203) that receives device profiles for a plurality of devices. A device location processor (205) proceeds to determine device locations for the user profile elements in response to the associated metadata and the device profiles. Specifically, a user profile element may be assigned to a specific device if the device profile for that device matches the metadata for the user profile element. The reasoning apparatus (101) may furthermore comprise a user profile element synchronizer (207) which synchronizes the user profile elements with the appropriate devices.
摘要:
An event detection apparatus for a cellular communication system comprises a video upload processor (203) which receives video upload activity indications. Each video upload activity indication comprises an indication of a video upload from a remote station of the cellular communication system as well as a remote station location indication for the remote station from which a video clip is uploaded. An event processor (205) generates an event indication in response to the video upload activity indications meeting a criterion where the event indication comprises an event location indication generated in response to the remote station location indications. The event detection criterion may specifically be that more than a given number of video upload activity indications are indicative of video uploads within a given time interval and geographic area. The invention may allow improved event detection.
摘要:
An event detection apparatus for a cellular communication system comprises a video upload processor (203) which receives video upload activity indications. Each video upload activity indication comprises an indication of a video upload from a remote station of the cellular communication system as well as a remote station location indication for the remote station from which a video clip is uploaded. An event processor (205) generates an event indication in response to the video upload activity indications meeting a criterion where the event indication comprises an event location indication generated in response to the remote station location indications. The event detection criterion may specifically be that more than a given number of video upload activity indications are indicative of video uploads within a given time interval and geographic area. The invention may allow improved event detection.
摘要:
A method for providing individualized recommendations to a user on a multi-user device is provided. During operation anonymous user preferences of similar program content will be grouped to form clusters of similar preferences. Context information for each cluster is determined and the clusters are grouped to form larger clusters. The grouping is based on the context information for each cluster. A current context is then determined and at least one larger cluster is found that has a similar context as the current context. The larger cluster is used to make a recommendation for the user.
摘要:
An apparatus for content item recommendation, such as a Digital Video Recorder, comprises a grouping unit (105) for grouping user ratings for content items into rating groups in response to a content item match criterion. A receiver (109) receives content item data for a plurality of content items and a first recommendation unit (107) generating a first set of content item recommendations. An association unit (111) then determines an associated rating group of the rating groups for each content item recommendation of the first set and a second recommendation unit (113) generates a second set of content item recommendations from the first set in response to a rating group distribution measure for the second set. The invention may allow improved recommendation of content items which is aligned with user preferences yet provide a desired diversity of the provided recommendation. The invention may in particular provide improved performance for multi-user devices.