دانلود و نمایش مقالات مرتبط با فرآیند تصمیم مارکوف::صفحه 1
دانلود بهترین مقالات isi همراه با ترجمه فارسی 2

با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد). 

نتیجه جستجو - فرآیند تصمیم مارکوف

تعداد مقالات یافته شده: 2
ردیف عنوان نوع
1 Structural properties and exact analysis of energy-aware multiserver queueing systems with setup times
ویژگی های ساختاری و تحلیل واقعی سیستمهای صف بندی چند سروری آگاه از انرژی با زمان های راه اندازی-2018
Energy consumption of today’s datacenters is a constant concern from the standpoints of monetary and environmental costs. An intuitive solution to address these immense energy demands is to turn servers off to incur less costs. As such, many different authors have modelled this problem as an queue where each server can be turned on, with an exponentially distributed setup time, or turned off instantaneously. What policy the model should employ, or rather when each server should be turned on and off is far from a trivial question. A specific policy is often examined, but determining which policy to study can be a difficult process and is often a product of intuition. Moreover, while a specific policy may do comparatively well against another, in general it may be far from optimal. This problem is further accentuated when one considers the case that a policy may do well or even be optimal under a specific cost function, but far from optimal under another. To address this issue we study the structural properties of the optimal policy under linear cost functions, allowing for a significant reduction in the search space. We then leverage these structural properties to intelligently select two policies for further study. Using the recursive renewal reward technique, we offer an exact analysis of these policies alongside offering insights, observations, and implications for how these systems behave. In particular, we provide insight into the question of the number of servers that should remain on at all times under a general cost function.
keywords: Continuous time Markov chain |Markov decision process |Green computing |Energy-aware server |Queueing analysis
مقاله انگلیسی
2 A two-queue model for optimising the value of information in energy-harvesting sensor networks
یک مدل دو صفه برای بهینه سازی ارزش اطلاعات در شبکه های حسگر برداشت انرژی-2018
We study the optimal transmission policy of a sensor node in an energy-harvesting wireless sensor network. We consider a hybrid wireless sensor network in which a mobile sink is used to collect data. Taking cues from recent works on the value of information (VoI), we posit that the optimal policy maximises the VoI that can be sent for the node to the sink. We model this system as a discrete-time queueing model with two coupled queues. In particular, the sensor node under study operates energy neutral and harvests energy according to a Bernoulli process. Discretising energy into “energy chunks”, the battery is modelled as a first queue, whereas a second queue is introduced to hold the VoI at the sensor node. From the vantage point of the sensor node, this means that the sensor can only send when the sink is sufficiently close. When this is the case, the sensor decides whether to transmit its data or not depending on the amount of available energy and the value of the information. Focusing on the optimal transmission policy, we formulate the optimal control problem as a Markov Decision Process with a level-dependent block-triangular transition probability matrix. We find the optimal policy which maximises the mean VoI transmitted from the node in the long run and numerically show that it is of threshold type. Further, we assess the value function at optimal policy analytically and provide some properties. Finally, we investigate the structure of the optimal policy and the mean VoI collected from the node for different system parameters by means of some numerical experiments.
keywords: Sensor network |Energy harvesting |Value of information |Markov decision process
مقاله انگلیسی
rss مقالات ترجمه شده rss مقالات انگلیسی rss کتاب های انگلیسی rss مقالات آموزشی
logo-samandehi
بازدید امروز: 5766 :::::::: بازدید دیروز: 0 :::::::: بازدید کل: 5766 :::::::: افراد آنلاین: 82