Abstract - - Abstract - - Abstract - This paper proposes a master-slave approach to simultaneously control two drones with the aim of carrying an object toward a goal. The proposed method utilizes the Double Deep Q-Learning (DDQN) technique to train a master agent to be able to carry an object toward a goal with the help of a slave agent. This procedure is implemented such that the master agent gathers the observations and specifies the actions to be made by itself and the slave agent. Indeed, the slave agent just applies a predefined action and does not process any input for producing the output. This manner of learning, leads to a unified convergence to an optimal solution compared to the situation in which each agent is trained separately. To verify the functionality of the proposed method, the algorithm is examined in the webots simulation environment. The simulations show that the introduced method has a good performance when controlling the drones to reach to the goal. The introduced method, other than algorithmic benefits which leads to a faster convergence of the model, suggests some reduction in the processing demand. The reason is that the learning procedure is guided by one of the agents and consequently only one of the agents is responsible for doing the calculations that lead to choosing the action. In this scenario, the slave agent does not require any processing resources for choosing the action and just simply applies a predefined action dictated by the master agent.

Abstract - - Abstract - - Abstract - This paper proposes a master-slave approach to simultaneously control two drones with the aim of carrying an object toward a goal. The proposed method utilizes the Double Deep Q-Learning (DDQN) technique to train a master agent to be able to carry an object toward a goal with the help of a slave agent. This procedure is implemented such that the master agent gathers the observations and specifies the actions to be made by itself and the slave agent. Indeed, the slave agent just applies a predefined action and does not process any input for producing the output. This manner of learning, leads to a unified convergence to an optimal solution compared to the situation in which each agent is trained separately. To verify the functionality of the proposed method, the algorithm is examined in the webots simulation environment. The simulations show that the introduced method has a good performance when controlling the drones to reach to the goal. The introduced method, other than algorithmic benefits which leads to a faster convergence of the model, suggests some reduction in the processing demand. The reason is that the learning procedure is guided by one of the agents and consequently only one of the agents is responsible for doing the calculations that lead to choosing the action. In this scenario, the slave agent does not require any processing resources for choosing the action and just simply applies a predefined action dictated by the master agent.

In this paper the phase of two Duffing-Vanderpol oscillators with different initial conditions are synchronized using an alternative force added to the slave system. The master and slave systems are solved using Adomian’s decomposition methodphas and the solutions and their phase differences are plotted to show the effectiveness of the method.

The so-called Islamic State (ISIS/ISIL) used the hadith mentioning that “ the slave-girl will give birth to her master” to justify its renewal of sexual slavery. This hadith is talking about signs before the end of the world, so it could be interpreted by the same Temple theology technique that has been used in the biblical book of Revelation, which is also about the end of the world. “ Temple theology” refers to the fact that many obscure and bizarre texts symbolically describe the rituals and politics of the Temple in Jerusalem. Thus, it will be argued that the whole hadith is talking about events that happened prior to the destruction of the Second Temple in Jerusalem in 70 CE (the Temple symbolized the world, so the end of the world refers to this incident). In particular, it will be shown that slave-girl refers to the Virgin Mary giving birth to Christ. The hadith is then linked to the start date of the building the Dome of the Rock in 688 CE, which is the year 999/1000 according to the “ Seleucid Era” calendar, implying a nearness to a symbolic end of the world. As such, the “ Islamic State” has no Islamic basis to use sexual slavery. As an appendix, the Dabiq hadith concerning the conquest of Constantinople is briefly discussed with reference to the possibility that Constantinople did fall to the Muslims before another symbolic end of the world, the year 7000 according to the Byzantine Calendar.

In accordance with Emmanuel Levinas’, s ethics, the interconnection between the subject and its Other is equated with the master-slave relationship, which is not by any means absolute. This article aims at illustrating an oscillating state of master-and-slave relation with regard to Levinas’, s ethics in Margaret Atwood’, s MaddAddam trilogy. The Face of the Other becomes a ‘, poor master’,who needs help and yet gives a serious order to the subject, one that he should obey. Subsequently, the Other deprives the subject of his/her wealth, thus overcoming its own poverty,therefore, the Other as a ‘, poor master’,and the subject as a ‘, wealthy subject’,constitute an ethical relationship. Founding the argument on the above-mentioned Levinasian principles, this paper approaches the altruistic intentions of Atwood’, s post-apocalyptic characters, and inspects how the post-apocalyptic world of her MaddAddam trilogy is ultimately orientated towards, if not also predicting, a return to now bygone humanistic, ethical and communal society.