Abstract: A ranked set of users may be calculated from an expertise categorization for each user and a person's trust in the users for specific categories. The ranked set of users may be used for presenting search results, recommendations, social marketing, or other uses. A person's reputation may be determined through various online activities. A person's trust in another person may be related to their proximity and activity in one or more social networks.

Abstract: A data channel transmission can be used to authenticate a voice channel transmission. An authentication server can authenticate the identity of one or more parties to a call where at least one of the parties to the call is using a mobile device. A PKI authentication methodology or other symmetric or asymmetric encryption/decryption methodology can be used in a mobile network environment to identify and authenticate a first user to a second user. The authentication request sent to the third party trusted server can be encrypted, signed and transmitted over a data channel (such as an internet connection or SMS or MMS connection), concurrent with the voice channel transmission. In response to validation by the third party trusted server, the third party trusted server can send an authentication indication to the second user's device, which can display identification information and other (optional) data associated with the first user.

Abstract: A data channel transmission can be used to authenticate a voice channel transmission. A third party trusted authentication server can be used to authenticate the identity of one or more parties to a call where at least one of the parties to the call is using a mobile device. A PKI authentication methodology or other symmetric or asymmetric encryption/decryption methodology can be used in a mobile network environment to identify and authenticate a first user to a second user. The authentication request sent to the third party trusted server can be encrypted, signed and transmitted over a data channel (such as an internet connection or SMS or MMS connection), concurrent with the voice channel transmission. In response to validation by the third party trusted server, the third party trusted server can send an authentication indication to the second user's device, which can display identification information and other (optional) data associated with the first user.

Abstract: A data channel transmission can be used to authenticate a voice channel transmission. An authentication server can authenticate the identity of one or more parties to a call where at least one of the parties to the call is using a mobile device. A PKI authentication methodology or other symmetric or asymmetric encryption/decryption methodology can be used in a mobile network environment to identify and authenticate a first user to a second user. The authentication request sent to the third party trusted server can be encrypted, signed and transmitted over a data channel (such as an internet connection or SMS or MMS connection), concurrent with the voice channel transmission. In response to validation by the third party trusted server, the third party trusted server can send an authentication indication to the second user's device, which can display identification information and other (optional) data associated with the first user.

Abstract: A movie browsing system may use a combination of long term and session based preferences to help a user browse movies using microcategories. The user preferences may be stored as microcategory weights, where the session based weights may change during a session as the system learns the types of movies a user wishes to see at that time. The long term microcategory weights may change at a slower rate than the session weights. The system may present a diverse set of microcategories to a user in an effort to diverge the search and learn the user's current interest, and may refine the weights as the user browses to converge to a desired movie. A user interface may operate on a television screen with a minimum of user input controls to navigate the browsing system while still collecting user preferences.

Abstract: Information retrieval for group users is described, for example, where an end user of a group, such as an enterprise or other organization, is able to identify and contact other end users of the group who have association with a query the end user issues. In various examples, topics associated with a query of an end user, or of queries of an enterprise or other group, are found. In examples, end users are associated with the topics. In various examples information about end users associated with a topic is displayed at a graphical user interface of an information retrieval system. In various examples an end user is able to send the query and/or a message to end users who have association with the query and/or a topic by making input at a graphical user interface of the information retrieval system. In some examples, notes and sharing permissions are stored.

Abstract: Topical affinity badges in information retrieval is described, for example, where graphical elements are presented together with ranked search results from a search engine, to indicate a degree of association between an author of a document and a topic. In various embodiments, a measure of an author's affinity to a topic is predicted using a machine learning system that takes as input author features derived from documents of the author. In various examples topical affinity scores or labels are used to generate badges and/or to index documents at an index of a search engine. For example, badges may be presented with ranked search results, in pop up displays or in other ways. In examples author features relating to any of recency, frequency and presentation of an author's documents are generated, where presentation features may relate to biographical information such as experience, qualifications, and previous documents.

Abstract: Topical affinity badges in information retrieval is described, for example, where graphical elements are presented together with ranked search results from a search engine, to indicate a degree of association between an author of a document and a topic. In various embodiments, a measure of an author's affinity to a topic is predicted using a machine learning system that takes as input author features derived from documents of the author. In various examples topical affinity scores or labels are used to generate badges and/or to index documents at an index of a search engine. For example, badges may be presented with ranked search results, in pop up displays or in other ways. In examples author features relating to any of recency, frequency and presentation of an author's documents are generated, where presentation features may relate to biographical information such as experience, qualifications, and previous documents.

Abstract: Online sellers may be ranked based on feedback given by people trusted by an individual user. The user may trust people in their social networks, as well as people who may be experts in a particular field, and the seller's ranking may be calculated by weighting reviews or feedback from trusted people higher than people unknown to the user. When used with a social campaign management system, ranking of products from multiple online sellers may include coupons or incentives that are available through the user's social network, as well as discounts or incentives that may be targeted to the user's status within their own social network.

Abstract: A movie browsing system may use a combination of long term and session based preferences to help a user browse movies using microcategories. The user preferences may be stored as microcategory weights, where the session based weights may change during a session as the system learns the types of movies a user wishes to see at that time. The long term microcategory weights may change at a slower rate than the session weights. The system may present a diverse set of microcategories to a user in an effort to diverge the search and learn the user's current interest, and may refine the weights as the user browses to converge to a desired movie. A user interface may operate on a television screen with a minimum of user input controls to navigate the browsing system while still collecting user preferences.

Abstract: A ranked set of users may be calculated from an expertise categorization for each user and a person's trust in the users for specific categories. The ranked set of users may be used for presenting search results, recommendations, social marketing, or other uses. A person's reputation may be determined through various online activities. A person's trust in another person may be related to their proximity and activity in one or more social networks.

Abstract: A ranked set of users may be calculated from an expertise categorization for each user and a person's trust in the users for specific categories. The ranked set of users may be used for presenting search results, recommendations, social marketing, or other uses. A person's expertise may be determined through various online activities. A person's trust in another person may be related to their proximity and activity in one or more social networks.

Abstract: A social marketing manager may facilitate marketing campaigns in online social networks by creating and monitoring campaigns, as well as facilitating online social interactions. A campaign manager may create a campaign and define various operational parameters. A recruitment system may identify social influencers through which the campaign may be started, and a promotion manager may create and track objects that may be passed to participants in the campaign. An analysis and monitoring system may determine the overall effectiveness of the campaign and provide feedback, payments to participants, or other results of the campaign.

Abstract: A data channel transmission can be used to authenticate a voice channel transmission. A third party trusted authentication server can be used to authenticate the identity of one or more parties to a call where at least one of the parties to the call is using a mobile device. A PKI authentication methodology or other symmetric or asymmetric encryption/decryption methodology can be used in a mobile network environment to identify and authenticate a first user to a second user. The authentication request sent to the third party trusted server can be encrypted, signed and transmitted over a data channel (such as an internet connection or SMS or MMS connection), concurrent with the voice channel transmission. In response to validation by the third party trusted server, the third party trusted server can send an authentication indication to the second user's device, which can display identification information and other (optional) data associated with the first user.