Abstract: Methods and systems for location-based promotions are presented. A location of a mobile device is determined and transmitted to a server computer via a wireless communications network, along with user identification information. One or more location-based applications are run on the mobile device. At least one of the applications receives location-based content based on a context determined by the server computer. The location-based content including a promotion for a location associated with the location-based content. The application further executes a promotional function based on the promotion.

Abstract: Systems and methods for location discovery are presented. One or more applications are run on the mobile device. At least one of the applications receives, from a server computer via the wireless communications network, location-based content based on a context determined by the server computer, the location-based content including an a location-based application associated with a location of the mobile device, the context being based on the location of the mobile device and a profile of a user of the mobile device. The application accesses the location-based content to execute the location-based application to generate a function that is personalized for the user of the mobile device based on the context, and executes the function based an input from the user of the mobile device.

Abstract: A system and method for determining a relevance of content for delivery to a mobile device is presented. Location information about a location of the mobile device is received. A set of location-based content related to the location is determined based on the location information and a user affinity of a user associated with the mobile device. The set of location-based content describes one or more places of interest to the user. A distance between each of the one or more places of interest and the mobile device is computed according to the location of the mobile device. A final relevance value for each item of content in the set of location-based content is determined, and the content from the set of location-based content is displayed according to the content's final relevance value.

Abstract: A new data structure and algorithms which offer at least equal performance in common sparse matrix tasks, and improved performance in many. This is applied to a word-document index to produce fast build and query times for document retrieval.

Abstract: A new data structure and algorithms which offer at least equal performance in common sparse matrix tasks, and improved performance in many. This is applied to a word-document index to produce fast build and query times for document retrieval.

Abstract: A new data structure and algorithms which offer at least equal performance in common sparse matrix tasks, and improved performance in many. This is applied to a word-document index to produce fast build and query times for document retrieval.

Abstract: A new data structure and algorithms which offer at least equal performance in common sparse matrix tasks, and improved performance in many. This is applied to a word-document index to produce fast build and query times for document retrieval.