Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating control policies for controlling agents in an environment. One of the methods includes, at each of a plurality of iterations: obtaining a current joint control policy for a plurality of agents, the current joint control policy specifying a respective current control policy for each agent; and updating the current joint control policy, comprising, for each agent: generating a respective reward estimate for each of a plurality of alternate control policies that is an estimate of a reward received by the agent if the agent is controlled using the alternate control policy while the other agents are controlled using the respective current control policies; computing a best response for the agent from the respective reward estimates; and updating the respective current control policy for the agent using the best response for the agent.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for rating tasks and policies using conditional probability distributions derived from equilibrium-based solutions of games. One of the methods includes: determining, for each action selection policy in a pool of action selection policies, a respective performance measure of the action selection policy on each task in a pool of tasks, processing the performance measures of the action selection policies on the tasks to generate data defining a joint probability distribution over a set of action selection policy — task pairs, and processing the joint probability distribution over the set of action selection policy — task pairs to generate a respective rating for each action selection policy in the pool of action selection policies, where the respective rating for each action selection policy characterizes a utility of the action selection policy in performing tasks from the pool of tasks.

Abstract: A suspension assembly for securing a wheel to opposed sides of a container carrying frame. A pivoted wheel support arm is secured at a forward pivot end to a pivot pin retained in the frame. A wheel axle assembly is secured at the rear free end of the pivot arm and adapted to connect a wheel thereto and has a shock absorber connecting bracket. A shock absorber connecting member extends above the pivot pin and is pivotally displaceable in facial alignment with a stationary shock absorber connector secured to the frame. A shock absorber is retained captive between the shock absorber connecting member and the stationary shock absorber connector to absorb vertical displacement loads transmitted to the pivotal wheel support arm.

Abstract: A suspension assembly for securing a wheel to opposed sides of a container carrying frame. A pivoted wheel support arm is secured at a forward pivot end to a pivot pin retained in the frame. A wheel axle assembly is secured at the rear free end of the pivot arm and adapted to connect a wheel thereto and has a shock absorber connecting bracket. A shock absorber connecting member extends above the pivot pin and is pivotally displaceable in facial alignment with a stationary shock absorber connector secured to the frame. A shock absorber is retained captive between the shock absorber connecting member and the stationary shock absorber connector to absorb vertical displacement loads transmitted to the pivotal wheel support arm.

Abstract: A trailer for transporting a freight container is comprised of a frame having a front frame section which is adapted to be coupled to a suitable road vehicle. A pair of displaceable horizontal side beams are secured to the front frame section and are provided with a hingeable rear gate formed by a pair of hinge arms. Each of the side beams has a suspension assembly to support a tandem wheel arrangement. Retractable vertical lifting piston cylinders are secured to a portion of the front frame and to the pair of hinge arms and are actuable to lift the pair of horizontal side beams and its wheels above a ground surface. Laterally extendable piston cylinders are also secured to the front frame and the hinge arms to displace the horizontal side beams outwardly and inwardly with respect to one another when lifted off the ground surface.