Abstract: Systems and methods for inferring and notifying an end user about reduced availability of a target user or group of target users in a time range of interest. For instance, the reduced availability service includes components for collecting calendar event information and calendar settings information corresponding to a calendar of a target user, generating an interval graph data structure based on the collected calendar information, determining working hours for the target user, identifying periods of time where reduced availability is determined in the target user's calendar, and generating a notification of the target user's reduced availability for alerting the end user.

Abstract: The present disclosure relates to a server system or other computer equipment for storing data of a first party and determining whether a second party is permitted access to that data based on metadata associated with the data. The disclosure provides a variety of techniques for reducing latency in a security check operation which involves reading this metadata to determine whether the second party is permitted access.

Abstract: The present disclosure relates to a server system or other computer equipment for storing data of a first party and determining whether a second party is permitted access to that data based on metadata associated with the data. The disclosure provides a variety of techniques for reducing latency in a security check operation which involves reading this metadata to determine whether the second party is permitted access.