Abstract: A system includes a processing device configured to execute instructions including accessing messages sent by a first user and other users. The instructions include identifying a first subset of messages that were sent by the first user and identifying a second subset of messages that are related to a first topic and were sent by the first user. The instructions include determining an authority value based on counts of the first and second subsets. The instructions include identifying a third subset of messages that resulted from the other users forwarding the second subset. The instructions include determining a power value based on a count of users that sent the third subset and computing an impact score for the first user on the first topic based on the authority and power values. The instructions include, based on the impact score, contacting the first user in relation to the first topic.

Abstract: Methods, systems, and computer program products are provided for recovering from false positives of malware detection. Malware signatures that are defective may be causing false positives during software scanning for malware. Such defective malware signatures may be detected (e.g., by user feedback, etc.) and revoked. Computers that are using the malware signatures to detect malware may be notified of the revoked signatures, and may be enabled to re-scan content identified as containing malware using malware signatures that do not include the revoked malware signatures. As such, if the content is determined during the re-scan to not be infected, the content may be re-enabled for usage on the computer (e.g., may be restored from quarantine storage).

Abstract: A system includes a processing device configured to execute instructions including accessing messages sent by a first user and other users. The instructions include identifying a first subset of messages that were sent by the first user and identifying a second subset of messages that are related to a first topic and were sent by the first user. The instructions include determining an authority value based on counts of the first and second subsets. The instructions include identifying a third subset of messages that resulted from the other users forwarding the second subset. The instructions include determining a power value based on a count of users that sent the third subset and computing an impact score for the first user on the first topic based on the authority and power values. The instructions include, based on the impact score, contacting the first user in relation to the first topic.

Abstract: This patent relates to a system for identifying influential users of a social network platform. The system may access records of messages sent or received by a plurality of users. The system can determine a power of a user to reach other users based at least in part on the messages. The system can determine an authority of the user on a topic. The system can also compute an impact score that reflects both the power and the authority of the user on the topic. Such scores may be used to select users based on impact as part of social trend analysis, marketing or other functions.

Abstract: A system for identifying influential users of a social network platform. The system may compute a score for each of multiple users. Such a score may be topic-based, leading to a more accurate identification of influential users. Such a topic-based score may indicate authority and/or impact of a user with respect to a topic. The impact may be computed based on authority combined with other factors, such as power of the user. The authority score may be simply computed, in whole or in part, directly from a tweet log without, for example creating a retweet graph. As a result, the scores may be computed, using MapReduce primitives or other constructs that allow the computations to be distributed across multiple parallel processors. Such scores may be used to select users based on impact as part of social trend analysis, marketing or other functions.

Abstract: A system for identifying influential users of a social network platform. The system may compute a score for each of multiple users. Such a score may be topic-based, leading to a more accurate identification of influential users. Such a topic-based score may indicate authority and/or impact of a user with respect to a topic. The impact may be computed based on authority combined with other factors, such as power of the user. The authority score may be simply computed, in whole or in part, directly from a tweet log without, for example creating a retweet graph. As a result, the scores may be computed, using MapReduce primitives or other constructs that allow the computations to be distributed across multiple parallel processors. Such scores may be used to select users based on impact as part of social trend analysis, marketing or other functions.

Abstract: A system for identifying influential users of a social network platform. The system may compute a score for each of multiple users. Such a score may be topic-based, leading to a more accurate identification of influential users. Such a topic-based score may indicate authority and/or impact of a user with respect to a topic. The impact may be computed based on authority combined with other factors, such as power of the user. The authority score may be simply computed, in whole or in part, directly from a tweet log without, for example creating a retweet graph. As a result, the scores may be computed, using MapReduce primitives or other constructs that allow the computations to be distributed across multiple parallel processors. Such scores may be used to select users based on impact as part of social trend analysis, marketing or other functions.

Abstract: A system is described for remediating a malicious modern application installed on an end user device. In an embodiment, the system includes an antimalware program executing on the end user device that can detect and attempt to remediate the malicious modern application, an operating system executing on the end user device that is configured to interact with the antimalware program for the purpose of facilitating the establishment of a connection between the end user device and an application support system in response to determining that the antimalware program has detected and attempted to remediate the malicious modern application, and the application support system that can perform remediation operations beyond those that can be performed by the antimalware program.

Abstract: Methods, systems, and computer program products are provided for recovering from false positives of malware detection. Malware signatures that are defective may be causing false positives during software scanning for malware. Such defective malware signatures may be detected (e.g., by user feedback, etc.) and revoked. Computers that are using the malware signatures to detect malware may be notified of the revoked signatures, and may be enabled to re-scan content identified as containing malware using malware signatures that do not include the revoked malware signatures. As such, if the content is determined during the re-scan to not be infected, the content may be re-enabled for usage on the computer (e.g., may be restored from quarantine storage).