1194 results about "Reinforcement learning algorithm" patented technology

A system and method for dispatching a plurality of vehicles operating in a work area among a plurality of destination locations and a plurality of source locations includes implementing linear programming that takes in an optimization function and constraints to generate an optimum schedule for optimum production, utilizing a reinforcement learning algorithm that takes in the schedule as input and cycles through possible environmental states that could occur within the schedule by choosing one possible action for each possible environmental state and by observing the reward obtained by taking the action at each possible environmental state, developing a policy for each possible environmental state, and providing instructions to follow an action associated with the policy.

The invention discloses an automatic-driving intelligent vehicle trajectory tracking control strategy based on deep reinforcement learning. For an intelligent vehicle automatic-driving task, accordingto an action-critics structure in a deterministic policy gradient (DDPG) algorithm, a double-action network is adopted to output a steering wheel angle command and a vehicle speed command. A main reviewer network is designed to guide the updating process of the double-action network, and the stragety specifically comprises the steps of describing an automatic driving task as a Markov decision process: < st,at,Rt, st +1 >; initializing a'double-action 'network in the improved DDPG algorithm by adopting a behavior cloning algorithm; pre-training a'reviewer 'network in the deep reinforcement learning DDPG algorithm; designing a training road containing various driving scenes to carry out reinforcement learning online training; and setting a new road to test the trained deep reinforcement learning (DRL) model. The control strategy is designed by simulating the human driving learning process, and automatic driving of the intelligent vehicle in the simple road environment is achieved.

The invention relates to an intelligent locomotive operation method and system based on deep reinforcement learning. The system comprises a data source module, a locomotive operation environment learning module, an evaluation mechanism learning module and a control strategy learning module, the data source module provides needed data input for the locomotive operation environment learning module and the evaluation mechanism learning module, and the locomotive operation environment learning module and the evaluation mechanism learning module output an obtained specific operating environment and a reward function value to the control strategy learning module. On the basis of a deep reinforcement learning algorithm, a locomotive operation environment model takes real-time evaluation of the locomotive operation action as feedback information, by rewarding or punishing the current operation action, a reward function is fed back to the control strategy to serve as a reward evaluation value, and the control strategy is combined with the operating state to iteratively update and optimize the strategy. Accordingly, intelligent and optimized locomotive operation can be better achieved, and artificial participation is greatly reduced.

The invention discloses a deep Q neural network anti-interference model and an intelligent anti-interference algorithm. A pair of emitting end and receiving end is a user, communication with the useris carried out, user communication is interfered by one or multiple jammers, the spectrum waterfall map of the receiving end is used as an input state of learning, and frequency domain and time domaincharacteristics of the interference are calculated. The algorithm comprises steps that firstly, a Q-value table corresponding to fitting is obtained through the deep Q neural network; secondly, a strategy is selected by the user according to the probability, training is carried out based on a return value of the strategy and the next environmental state, and the network weight and frequency selection strategy are updated; when the maximum number of cycles is reached, the algorithm ends. The model is advantaged in that the model is complete, the physical meaning is clear, the design algorithmis reasonable and effective, and the anti-interference scene based on the deep reinforcement learning algorithm can be excellently described.

The invention relates to a living iris detection method, which comprises the following steps of: S1, pre-treating a living iris image and an artificial iris image in a training image library; performing multi-scale characteristic extraction of local binary mode in an obtained interested area, and selecting the preferable one from the obtained candidate characteristics by using an adaptive reinforcement learning algorithm, and establishing a classifier for living iris detection; and S2, pre-treating the randomly input test iris image, and calculating the preferable local binary-mode characteristic in the obtained interested area; inputting the calculated characteristic value into the classifier for living iris detection obtained in step S1, and judging whether the test image is from the living iris according to the output result of the classifier. The invention can perform effective anti-forgery detection and alarm for the iris image and reduce error rate in iris recognition. The invention is widely applicable to various application systems for identification and safety precaution by using iris recognition.

The present invention belongs to the automobile automatic driving technical field and provides an automatic driving method and device of an automobile. The method comprises the following steps that: the automobile state of the current position of the automobile is obtained through sensors preset on the automobile; the return values of the current available driving actions of the automobile are obtained according to the automobile state and a pre-established strategic network model, wherein the strategic network model is established through a preset deep reinforcement learning algorithm; and a current available driving action corresponding to a maximum return value in the return values is set to be a next execution action of the automobile and is executed. Thus, with the automatic driving method and device of the automobile of the invention adopted, under diverse driving conditions and complex traffic conditions, favorable driving actions are obtained timely and effectively and executed, and the automatic driving of the automobile can be realized.

The invention relates to an intelligent traffic lamp control method based on deep intensive learning. The method comprises the steps of selecting a center intersection, wherein multiple peripheral intersections communicated with the center intersection are arranged at the periphery of the center intersection; obtaining road condition information and signal lamp information of each intersection; building an intersection congestion and unblocking state model; modelling a traffic signal lamp control problem into a Markov decision-making process, and defining the state, motion and an immediate awarding function in the process; building a return value function model, utilizing a DQN deep intensive learning algorithm for solving an optimum strategy, and utilizing the optimum strategy for controlling traffic lights of all the intersections. By means of the method, a control strategy of the traffic lights can be self-adaptively and dynamically adjusted according to the real-time road conditioninformation. In the meanwhile, multiple intersections are synchronously adjusted, and full play can be given to the traffic capability of all the intersections.

The invention discloses a micro-power-grid energy storage scheduling method and device based on deep Q-value network reinforcement learning. A micro-power-grid model is established; a deep Q-value network reinforcement learning algorithm is utilized for artificial intelligence training according to the micro-power-grid model; and a battery running strategy of micro-power-grid energy storage scheduling is calculated and obtained according to input parameter feature values. According to the embodiment of the invention, deep Q-value networks are utilized for scheduling management on micro-power-grid energy, an agent decides the optimal energy storage scheduling strategy through interaction with an environment, a running mode of the battery is controlled in the constantly changing environment,features of energy storage management are dynamically determined on the basis of a micro-power-grid, and the micro-power-grid is enabled to obtain a maximum running benefit in interaction with a mainpower grid; and the networks are enabled to respectively calculate an evaluation value of the environment and an additional value, which is brought by action, through using a competitive Q-value network model, decomposition of the two parts enables a learning objective to be more stable and accurate, and estimation ability of the deep Q-value networks on environment status is enabled to be higher.

A system and method are provided to establish trust between a user and a policy system that generates recommended actions in accordance with specified policies. Trust is introduced into the policy-based system by assigning a value to each execution of each policy with respect to the policy-based system, called the instantaneous trust index. The instantaneous trust indices for each one of the policies, for the each execution of a given policy or for both are combined into the overall trust index for a given policy or for a given policy-based system. The recommended actions are processed in accordance with the level or trust associated with a given policy as expressed by the trust indices. Manual user input is provided to monitor or change the recommended actions. In addition, reinforcement learning algorithms are used to further enhance the level of trust between the user and the policy-based system.

The invention relates to an MEC unloading method under energy consumption and delay constraints. The method specifically comprises: carrying out system modeling, specifically, a base station and N mobile user devices are arranged in a cell, the base station and an MEC server are deployed together, each mobile user device is made to have a computing intensive task needing to be completed, and eachmobile user device can unload the task to the MEC server or execute the task locally; constructing a local calculation model and an unloading model to obtain the total local calculation cost and the total MEC unloading calculation cost; and searching an optimal computing unloading and resource allocation scheme through a reinforcement learning algorithm, i.e., computing unloading decisions of allmobile user devices in the cell and computing resource allocation of the MEC server. The optimal strategy can be obtained in the dynamic system, so that the energy consumption of the mobile user devices is reduced, the delay is reduced, and the service quality is ensured.

The invention provides a computing unloading scheduling method based on depth reinforcement learning, which provides a method for computing unloading to make unloading decision for Internet of Thingsequipment, including making decisions on various aspects needing to be unloaded according to the basic model of computing unloading. Based on different optimization objectives, different optimizationobjectives can be achieved by changing the value function. TheDeep-SARSA algorithm is similar to DQN algorithm, which combines reinforcement learning and depth learning. It can effectively change theunloading state and unloading action into training samples of depth learning when cooperating with experience pool. The invention can effectively carry out machine learning on an unloading state modelof an unlimited dimension, reducing the complexity of learning, this method uses neural network as the linear approximator of Q value, which can effectively improve the training speed and reduce thesample required for training. This method can effectively make the best decision through deep reinforcement learning under the given model and optimization objective.

The invention discloses an edge computing task allocation method based on deep Monte Carlo tree search, and aims to support optimization of resource allocation by an edge server. And the edge server takes the state of a mobile edge computing system as input, the edge server resource scheduling module outputs an optimal resource allocation scheme through a deep reinforcement learning algorithm, andthe mobile equipment terminal unloads the task according to the optimal resource allocation scheme and executes the task together with the edge server. The deep reinforcement learning algorithm is completed by mutual cooperation of DNN, MCTS and LSTM, and compared with greedy search and DQN algorithms, the algorithm provided by the invention is greatly improved in the aspects of optimizing service time delay and optimizing service energy consumption of the mobile terminal.

The invention, which belongs to the field of intelligent algorithm optimization, provides a reinforced learning robot path planning algorithm based on a potential field in a complex environment, thereby realizing robot path planning in a complex dynamic environment under the environmental condition that a large number of movable obstacles exist in a scene. The method comprises the following steps:modeling environment space by utilizing the traditional artificial potential field method; defining a state function, a reward function and an action function in a Markov decision-making process according to a potential field model, and training the state function, the reward function and the action function in a simulation environment by utilizing a reinforcement learning algorithm of a depth deterministic strategy gradient; and thus enabling a robot to have the decision-making capability of performing collision-free path planning in a complex obstacle environment. Experimental results showthat the method has advantages of short decision-making time, low system resource occupation, and certain robustness; and robot path planning under complex environmental conditions can be realized.

Provided is a machine learning strategy based distance preferred optimal path selection method (OPABRL). A local path is planned according to path direction, width, curvature road intersect and faultdetail information in practical application of an intelligent driving vehicle. A reinforced learning algorithm is known and learned to design the prior knowledge based optimal path selection method ofthe reinforced learning strategy, the searching direction for the shortest path is set in the program, and the shortest path searching process is simplified. The path optimization method can be usedto help different types of intelligent driving vehicles plan an optimal path in the traffic network with height, width and weight limits or in accident/jamming conditions smoothly. According to simulation and scene experiments, the method of the invention is higher in efficiency and practicality compared with existing ACO, GA, ANNs and PSO algorithms.

The invention belongs to the technical field of automobile advanced auxiliary driving and unmanned driving system design and relates to a parameterized learning decision control system suitable for lane changing and lane keeping behaviors and a method. The parameterized learning decision control system suitable for the lane changing and lane keeping behaviors of the invention is designed based ona parameterized decision framework; the system comprises a learning decision-making method and a track planning controller, wherein the learning decision-making method is designed under the lane changing and lane keeping scene of a vehicle on the basis of a reinforcement learning algorithm, and the track planning controller can be correspondingly parameterized under the scene so as to adapt to straight road and bend road planning. The system is suitable for a high-level automatic driving vehicle; the adaptability of the system to the different driving behavior characteristics of different drivers is effectively improved through online learning; and therefore, the system obtains better driving performance with safety guaranteed.

The invention discloses a power allocation method in a power domain NOMA based on a reinforcement learning algorithm. Value function update is performed on a Critic part in an Actor-Critic algorithm,and then, an instant reward and a time difference error are fed back into an Actor part in the Actor-Critic algorithm to perform strategy update; and through continuous iteration, a state action valuefunction and a strategy finally tend to the optimal value function and the optimal strategy at last, the energy efficiency of the system is optimal at the moment, and the problems that the complexityof the existing power allocation method is high and that a good effect cannot be achieved on the optimization of the performance of the system are solved.

The invention discloses a method for achieving dynamic load balancing in the heterogeneous network, and relates to the technical field of the heterogeneous communication network. According to the method, each base station senses the changes of network loads in the heterogeneous network, historical network load information is learnt, the network load situation in the future is forecasted, inter-cell handover or intra-cell handover is carried out on users newly connected into the network to achieve load balancing according to the forecasted load value of each base station, and the reinforcement learning algorithm, the optimal relevance algorithm, the bias factor solution algorithm and the optimal resource distribution algorithm based on the load balancing are included. The method achieves the intelligence of the network in a sense, combines the rapid load balancing with the dynamic network resource distribution adjustment, and improves the performance of the whole network. The method can also be used in the homogeneous network, and has good compatibility.

The invention aims at providing a driving strategy model training method and device. The method comprises acquiring model parameter information corresponding to a driving strategy model of a driving device, wherein the model parameter information is determined by training the driving strategy model on the basis of preset driving rule information, and the driving strategy model is established on the basis on reinforcement learning algorithms; acquiring the driving parameter information of the driving device during a driving process, and based on the model parameter information, training the driving strategy model. Compared with the prior art, the driving strategy model training method avoids exploration from scratch on training the driving strategy model, instead, the driving device can drive just like having learnt driving rules before training starts, so that the training process of the driving strategy model on the basis can be greatly shortened, and meanwhile, the number of times ofunreasonable driving strategies as well as damage to vehicles during the training process can be greatly reduced.

The purpose of the present application is to provide a method or a device for determining a driving strategy based on reinforcement learning and rule fusion. The method comprises: based on the drivingparameter information of a vehicle, determining first driving strategy information of the vehicle through a reinforcement learning algorithm; based on the driving parameter information and the driving rule information of the vehicle, performing rationality detection on the first driving strategy information; and determining target driving strategy information of the vehicle based on the detectionresult of the rationality detection. Compared with the prior art, according to the technical scheme of the present application, the first driving strategy information calculated and determined by thereinforcement learning algorithm is constrained by the rule, so that the method for determining the driving strategy provided by the present application is more intelligent than the existing method for implementing vehicle control by using the rule algorithm, or the method for implementing vehicle control by using the reinforcement learning algorithm, and the rationality and stability of the finally determined driving strategy are improved.

The invention provides an intelligent routing decision method based on reinforcement learning, in particular to an intelligent routing decision method based on a DDPG reinforcement learning algorithm.The method aims at designing an intelligent routing decision by utilizing reinforcement learning, balancing an equivalent path flow load and improving the processing capacity of a network for burst flow, an experience decision mechanism based on a sampling probability is adopted, the probability that experience with poorer performance is selected is higher, and the training efficiency of an algorithm is improved. In addition, noise is added into neural network parameters, system exploration is facilitated, and algorithm performance is improved. The method comprises the following steps: 1) constructing a network topology structure; 2) numbering equivalent paths in the network topology structure G0; (3) constructing a routing decision model based on a DDPG reinforcement learning algorithm,(4) initializing a flow demand matrix DM and an equivalent path flow proportion matrix PM, and (5) carrying out iterative training on the routing decision model based on reinforcement learning, and the method can be used for scenes such as a data center network.

The invention discloses a task unloading method based on power control and resource allocation, and relates to the field of industrial Internet of Things. The method comprises the steps: establishinga cross-domain network model of an industrial field; constructing a calculation model of an equipment task; according to the model, constructing a mixed integer nonlinear programming model for communication power control, resource allocation and calculation unloading problems; decomposing a problem into three sub-problems; solving an optimal communication power and a resource allocation strategy by utilizing convex optimization knowledge, a Lagrange multiplier method and a KKT (Karush-Kuhn-Tucker) condition; after substituting an original target function, solving an optimal decision of a taskcalculation position by utilizing a deep reinforcement learning algorithm, and obtaining an optimal strategy of communication power, resource allocation and the calculation position of task unloading.The method can obtain the optimal strategy in industrial network task unloading, and has the technical effects of reducing the task delay, reducing the equipment energy consumption and ensuring the service quality.