Abstract: A handheld extraction cleaner includes a fluid delivery system and a recovery system including a suction nozzle, a recovery tank, and a suction source. The recovery tank has an auto-close feature that automatically seals an outlet of the tank when the recovery tank is mounted to a tank receiver of the extraction cleaner.

Abstract: A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a suction nozzle, a recovery tank, and a suction source, all of which are carried by the unitary body. In one aspect, the recovery tank is configured to optimize the usable volume within the tank and a user's view of the collected dirty liquid within the tank, among other functions. In another aspect the recovery tank has an auto-close feature that automatically seals an outlet of the tank when the recovery tank is mounted to a tank receiver of the unitary body. In yet another aspect, the extraction cleaner has an agitator that slides out from a side of the unitary body. In still another aspect, the suction nozzle includes a cleaning angle guide skid to orient the extraction cleaner at an optimal cleaning angle. In a further aspect, the supply tank is a non-removable part located at a rear of the unitary body.

Abstract: A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a suction nozzle, a recovery tank, and a suction source, all of which are carried by the unitary body. In one aspect, the recovery tank is configured to optimize the usable volume within the tank and a user's view of the collected dirty liquid within the tank, among other functions. In another aspect the recovery tank has an auto-close feature that automatically seals an outlet of the tank when the recovery tank is mounted to a tank receiver of the unitary body. In yet another aspect, the extraction cleaner has an agitator that slides out from a side of the unitary body. In still another aspect, the suction nozzle includes a cleaning angle guide skid to orient the extraction cleaner at an optimal cleaning angle. In a further aspect, the supply tank is a non-removable part located at a rear of the unitary body.

Abstract: A surface cleaning apparatus includes a housing having a base adapted for movement across a surface to be cleaned, a fluid delivery system, and a recovery system. Various motor cooling arrangements are disclosed. The surface cleaning apparatus can be configured to clean multiple surfaces, including hard and soft floor surfaces.

Abstract: A surface cleaning apparatus includes a housing including a base adapted for movement across a surface to be cleaned, a fluid delivery system, and a recovery system. The surface cleaning apparatus can be configured to clean multiple surfaces, including hard and soft surfaces, and for different cleaning modes, including wet cleaning, dry vacuum cleaning, and self-cleaning. A brushroll is provided on the base, along with various wipers, squeegees, and/or fluid dispensers.

Abstract: A method of optimizing a topology for reservoir computing comprises optimizing a plurality of reservoir computer (RC) hyperparameters to generate a topology, and creating a reservoir as a network of interacting nodes with the topology. Optimizing the RC hyperparameters uses a Bayesian technique. The RC hyperparameters comprise: ?, which sets a characteristic time scale of the reservoir, ?, which determines a probability a node is connected to a reservoir input, ?in, which sets a scale of input weights, k, a recurrent in-degree of the network, and ?r, a spectral radius of the network.

Abstract: A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a recovery tank, and a suction source, all of which are carried on the unitary body. The various components of the extraction cleaner can be arranged for a balanced weight in hand. The supply and recovery tanks are configured to optimize the usable volume within the tanks, among other functions. A powered cleaning head including a removable brushroll is provided on the unitary body.

Abstract: Reservoir computing systems and methods provide rapid processing speed by the reservoir and by the output layer. A hardware implementation of reservoir computing is based on an autonomous, time-delay, Boolean network realized on a readily-available platform known as a field-programmable gate array (FPGA). This approach allows for a seamless coupling of the reservoir to the output layer due to the spatially simple nature of the reservoir state and because matrix multiplication of a Boolean vector can be realized with compact Boolean logic. Embodiments may be used to predict the behavior of a chaotic dynamical system.