Abstract: A message addressed to a user is received. A first model is applied to the message to produce a first output indicative of whether the message is representative of a non-malicious message. The first model is trained using past messages that have been verified as non-malicious messages. It is determined, based on the first output, that the message is potentially a malicious message. Responsive to determining that the message is potentially a malicious email based on the first output, apply a second model to the message to produce a second output indicative of whether the message is representative of a given type of attack. The second model is one of a plurality of models. At least one model included in the plurality of models is associated with characterizing a goal of the malicious message. An action is performed with respect to the message based on the second output.

Abstract: Conventional email filtering services are not suitable for recognizing sophisticated malicious emails, and therefore may allow sophisticated malicious emails to reach inboxes by mistake. Introduced here are threat detection platforms designed to take an integrative approach to detecting security threats. For example, after receiving input indicative of an approval from an individual to access past email received by employees of an enterprise, a threat detection platform can download past emails to build a machine learning (ML) model that understands the norms of communication with internal contacts (e.g., other employees) and/or external contacts (e.g., vendors). By applying the ML model to incoming email, the threat detection platform can identify security threats in real time in a targeted manner.

Abstract: Example steering wheel systems and torque feedback actuator assemblies for use in steer-by-wire vehicles are described herein. An example steering wheel system includes a steering wheel and a torque feedback actuator assembly. The torque feedback actuator assembly includes a housing and a helical gear rotatably disposed in the housing. The steering wheel is coupled to and coaxially aligned with the helical gear. The torque feedback actuator assembly also includes a motor with a worm gear engaged with the helical gear to provide torque feedback to the steering wheel by driving the helical gear.

Abstract: Apparatus can have a separable housing having a longitudinal length extending along a longitudinal axis with an upper portion and a lower portion. One or more tubular control conduits can be disposed within the separable housing and extend along the longitudinal axis. The one or more tubular control conduits can have an inner bore formed therein. One or more actuation elements can be coupled with the separable housing and be operable to separate the upper portion and the lower portion of the separable housing. The one or more actuation elements can also be operable to separate the one or more tubular control conduits, thereby interrupting the inner bore of the one or more tubular control conduits.

Abstract: A tubular control conduit is disposed in a wellbore having a retractable segment and an abandonable segment, each having an inner bore. Upon retraction of the retractable segment an obstruction member is actuated to form a seal thereby preventing the flow of fluid past the obstruction member in the inner bore of the abandoned segment. Cement is then poured into the wellbore thereby covering the abandoned segment of the tubular control conduit.

Abstract: Apparatus can have a separable housing having a longitudinal length extending along a longitudinal axis with an upper portion and a lower portion. One or more tubular control conduits can be disposed within the separable housing and extend along the longitudinal axis. The one or more tubular control conduits can have an inner bore formed therein. One or more actuation elements can be coupled with the separable housing and be operable to separate the upper portion and the lower portion of the separable housing. The one or more actuation elements can also be operable to separate the one or more tubular control conduits, thereby interrupting the inner bore of the one or more tubular control conduits.

Abstract: A method for evaluating software performance includes steps of: receiving a plurality of versions of code; selecting starting and stopping points for timing execution of the code versions; dispatching at least two of the plurality of code versions for execution; repeatedly executing the at least two code versions; recording execution times for the at least two code versions, according to the selected starting and stopping points; collecting the execution times; and processing the collected execution times. The method further includes steps of: performing a statistical analysis of the collected execution times for determining which code version is fastest; and invoking a confidence metric periodically to determine if a difference between means is statistically meaningful.

Abstract: A method for evaluating software performance includes steps of: receiving a plurality of versions of code; selecting starting and stopping points for timing execution of the code versions; dispatching at least two of the plurality of code versions for execution; repeatedly executing the at least two code versions; recording execution times for the at least two code versions, according to the selected starting and stopping points; collecting the execution times; and processing the collected execution times. The method further includes steps of: performing a statistical analysis of the collected execution times for determining which code version is fastest; and invoking a confidence metric periodically to determine if a difference between means is statistically meaningful.