Ranger Theory about National or Agricultural Lands, Criteria and Responsibilities

Natural resources such as land and mountains and seas are one of the God-given riches of societies protect and utilize it is one of the major tasks of governments. One of the most important natural resources is national land; it may be forest or grassland or desert. It is extremely important to distinguish national lands that belong to all people from agricultural lands that belong to a private owner. The that law gives the rangers the right to identify these two types of lands based on certain legal rules and criteria. Since there is always the possibility of rangers mistake in this diagnosis, in case of objection of the interested party, special legal authorities to deal with the objection and invalidation of ranger theory are provided in the law, which in some cases a special commission and in some other cases It is legal. In addition, according to the general principles of law, such as the principle of compensation for all illegitimate damages, and also according to the jurisprudential rule, it should be said that if the warlord has committed a mistake in identifying lands, the owner of the land, who has already suffered damage due to this misdiagnosis, can file a lawsuit against the warlord in the General Court of Legal Law in accordance with the general rules of civil liability and claim the damages

Simulator-Defined MDP Planning with Applications in Natural Resource Management

This work is inspired by problems in natural resource management centered on the challenge of invasive species. Computing optimal management policies for maintaining ecosystem sustainable is challenging. Many ecosystem management problems can be formulated as MDP (Markov Decision Process) planning problems. In a simulator-defined MDP, the Markovian dynamics and rewards are provided in the form of a simulator from which samples can be drawn. Simulators in natural resource management can be very expensive to execute, so that the time required to solve such MDPs is dominated by the number of calls to the simulator. This thesis studies MDP planning algorithms that attempt to minimize the number of simulator calls before terminating and outputting a policy that is approximately optimal with high probability. This thesis addresses three questions on unconstrained MDPs: (a) what confidence interval should be employed to bound the optimality of the policy and (b) how should samples be drawn to shrink the confidence interval as quickly as possible? (c) how can we find the optimal policy with high probability efficiently? Many computational sustainability problems involving MDPs must also be concerned with catastrophic outcomes such as species extinction. These problems can be formulated as constrained MDPs. We define the downside risk as the probability of reaching catastrophic states and then constrain the MDP solution to bound the probability of entering such states. We then develop the first PAC-Safe-RL algorithm for constrained MDPs. We evaluate our algorithms on an invasive species problem as well as on standard reinforcement learning benchmarks

PAC Optimal Planning for Invasive Species Management: Improved Exploration for Reinforcement Learning from Simulator-Defined MDPs

Often the most practical way to define a Markov Decision Process (MDP) is as a simulator that, given a state and an action, produces a resulting state and immediate reward sampled from the corresponding distributions. Simulators in natural resource management can be very expensive to execute, so that the time required to solve such MDPs is dominated by the number of calls to the simulator. This paper presents an algorithm, DDV, that combines improved confidence intervals on the Q values (as in interval estimation) with a novel upper bound on the discounted state occupancy probabilities to intelligently choose state-action pairs to explore. We prove that this algorithm terminates with a policy whose value is within ε of the optimal policy (with probability 1 − δ) after making only polynomially-many calls to the simulator. Experiments on benchmark MDPs and on an MDP for invasive species management show 3- to 5-fold reductions in the number of simulator calls required

Civil Liability of Online Stores in Iranian Law and a Comparative Case Study in the European Union

Today, online stores sell goods and services through online contracts, exchanging emails with the other party, or filling out a specific form on the website by one party. Online contracts may be executed by presenting the terms of the contract to one party and then asking the applicant to click on the words "I agree" or something similar. The number of consumers who use online platforms to fulfill their shopping needs has increased, and online stores have responsibilities for the intermediary role and the platform they provide for online buying and selling. From the legal point of view, two types of contractual or non-contractual responsibilities can be considered for these stores. Currently, these types of internet businesses are very popular among users, but in any case, we should look for a space to increase the security of this type of service and secure it, while taking care of and protecting consumer rights; because at present, with the very wide growth of this type of websites and online stores in different fields, we have witnessed the provision of services in the fields of sports, culture and leisure, electronic devices such as audio and visual devices, household, personal and office, real estate and land, vehicles, services and training, supplies and business, and even recruitment and employment or expression of job opportunities, etc. Since online platforms often act as "gateways to control and limit interactions in a system", the first question is whether online platforms and online stores can still be considered simply as intermediaries or should they be suppliers. The second question is whether platforms, as dominant channels in the market, may be held liable to their customers for infringements caused primarily by platform suppliers. Finally, the third question is whether there is a necessary connection between the first and second questions, namely that the platform operator may be held liable to its customers while it may not be treated as a mere intermediary, it may be treated as a supplier of goods and services provided by Platform Providers. Regarding the activity of online stores and their responsibility for their actions or others, it cannot be assumed that they are not absolutely responsible. The important issue is that in online shopping, the buyer makes a transaction that the seller has not seen closely, therefore, the necessity of such purchases, due to its nature, requires more support from the buyer. Because in such transactions, the buyer does not have detailed information about the seller of the goods, their credit, and the transaction, and the burden of the purchase risk is on the shoulders of the buyer. For this reason, as well as for the specialization of the subject and its great application and importance, in this research, an attempt will be made to examine the civil liability of online stores in the laws of Iran and the European Union. In relation to the foundations of civil responsibility of online stores, the theory of fault should be accepted as the main basis of civil responsibility in the laws of Iran and the European Union. In fact, where the providers of their Internet services and goods commit harmful acts, their liability is still based on fault. However, regarding the responsibility of internet sellers, you can also refer to other bases. The important thing about online stores is that concluding a sales contract through the internet in this category of stores should not create doubt that online stores are not subject to the general rules of civil liability. On the contrary, it should be stated that such stores are subject to general rules regarding civil liability rules; because buying or selling through online stores differs from traditional contracts in only a few specific cases; the most important of which is the method of concluding a contract. In other words, except for a few minor cases, in other cases, buying from an online store is not much different from buying from a real store; therefore, in relation to the civil liability of online stores, two types of liability can be realized, contractual and non-contractual liability. This type of separation in civil liability has been accepted both in the civil law of Iran and in the civil law of the European Union. On the other hand, in order to realize the civil liability of online stores in two areas of contractual and non-contractual liability, certain conditions are necessary. So in the field of contractual liability, the existence of a valid contract, breach of contract, and the existence of damage caused by the breach of contract are necessary, and in the field of non-contractual liability of the online store, the occurrence of loss, harmful action and the relationship of causation is necessary. It is suggested that cyberspace and internet stores are very suitable for millions of jobs. On the other hand, the Internet is a useful tool for marketing various services. In this regard, the creation of up-to-date and applicable laws as well as the amendment of existing laws are more important than ever. For this reason, it is suggested that, especially in Iranian law, laws in the field of online stores should be formulated in a specific way, and in these laws, the civil liability of this type of store should be determined clearly, inspired by the principles of civil responsibility and not limited to accepting one of the opinions and principles. Laws that, in addition to preventing the occurrence of computer crimes, should provide the opportunity for legal internet businesses to operate and grow, and this means that the laws are fair. In addition to the definition of platforms, the law that is developed for this purpose should include the providers and users of the internet platform for the purpose of electronic commerce, the law that is formulated for this purpose must state the criteria and criteria accepted in the legal analysis, of course, a mechanism for the purpose of floating the bon and the ability to generalize the criteria. Claims between parties (both platform, supplier, and user) should be considered. Also, the cases where the rules related to transactions do not respond to the new needs are written and govern the relations of the parties

PAC Optimal MDP Planning with Application to Invasive Species Management

In a simulator-defined MDP, the Markovian dynamics and rewards are provided in the form of a simulator from which samples can be drawn. This paper studies MDP planning algorithms that attempt to minimize the number of simulator calls before terminating and outputting a policy that is approximately optimal with high probability. The paper introduces two heuristics for efficient exploration and an improved confidence interval that enables earlier termination with probabilistic guarantees. We prove that the heuristics and the confidence interval are sound and produce with high probability an approximately optimal policy in polynomial time. Experiments on two benchmark problems and two instances of an invasive species management problem show that the improved confidence intervals and the new search heuristics yield reductions of between 8% and 47% in the number of simulator calls required to reach near-optimal policies.This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Journal of Machine Learning Research, Microtome Publishing. The published article can be found at: http://www.jmlr.org/Keywords: invasive species management, Good-Turing estimate, MDP planning, Markov decision processes, reinforcement learnin