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Framework sumo-atclib for adaptive traffic control modeling
Computer Research and Modeling, 2024, v. 16, no. 1, pp. 69-78This article proposes the sumo-atclib framework, which provides a convenient uniform interface for testing adaptive control algorithms with different limitations, for example, restrictions on phase durations, phase sequences, restrictions on the minimum time between control actions, which uses the open source microscopic transport modeling environment SUMO. The framework shares the functionality of controllers (class TrafficController) and a monitoring and detection system (class StateObserver), which repeats the architecture of real traffic light objects and adaptive control systems and simplifies the testing of new algorithms, since combinations of different controllers and vehicle detection systems can be freely varied. Also, unlike most existing solutions, the road class Road has been added, which combines a set of lanes, this allows, for example, to determine the adjacency of regulated intersections, in cases when the number of lanes changes on the way from one intersection to another, and therefore the road graph is divided into several edges. At the same time, the algorithms themselves use the same interface and are abstracted from the specific parameters of the detectors, network topologies, that is, it is assumed that this solution will allow the transport engineer to test ready-made algorithms for a new scenario, without the need to adapt them to new conditions, which speeds up the development process of the control system, and reduces design overhead. At the moment, the package contains examples of MaxPressure algorithms and the Q-learning reinforcement learning method, the database of examples is also being updated. The framework also includes a set of SUMO scripts for testing algorithms, which includes both synthetic maps and well-verified SUMO scripts such as Cologne and Ingolstadt. In addition, the framework provides a set of automatically calculated metrics, such as total travel time, delay time, average speed; the framework also provides a ready-made example for visualization of metrics.
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Features of social interactions: the basic model
Computer Research and Modeling, 2024, v. 16, no. 5, pp. 1323-1335The paper presents the results of research on the creation of a mathematical model of moral choice based on the development of the approach proposed by V. A. Lefebvre. Unlike V. A. Lefebvre, who considered a very speculative situation of a subject’s moral choice between abstract “good” and “evil” under pressure from the outside world, taking into account the subjective perception of this pressure by the subject, our study considers a more mundane and practically significant situation. The case is considered when the subject, when making decisions, is guided by his individual perception of the outside world (which may be distorted, for example, due to external purposeful informational influence on the subject and manipulation of his consciousness), and “good” and “evil” are not abstract, but are conditioned by a value system adopted in a particular society under consideration and tied to a specific ideology/religion, which may be different for different societies.
As a result of the conducted research, a basic mathematical model has been developed, and special cases of its application have been considered. Some patterns related to moral choice are revealed, and their formal description is given. In particular, the situation of manipulation of consciousness is considered in the language of the model, the law of reducing the “morality” of a society consisting of so-called free subjects (that is, those who strive to act in accordance with their intentions and correspond in their actions to the image of their “I”) is formulated.
Keywords: moral choice, mathematical model, intention, readiness function, value system, free subject.
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International Interdisciplinary Conference "Mathematics. Computing. Education"