In this paper, joint resource allocation and power control for energy-efficient device-to-device (D2D) communications underlaying cellular networks are investigated. The optimized maximization of the energy efficiency (EE) D2D communications. Exploiting properties fractional programming, we transform original nonconvex optimization problem in form into an equivalent subtractive form. Then, efficient iterative scheme is proposed. each iteration, part constraints EE removed by exploiting...

There is valid evidence that air pollution associated with respiratory disease. However, few studies have quantified the short-term effects of six pollutants on influenza-like illness (ILI). This study explores potential relationship between and ILI in Jinan, China.Daily data concentration particulate matters < 2.5 μm (PM 2.5), 10 (PM10), sulfur dioxide (SO2), nitrogen (NO2), carbon monoxide (CO), ozone (O3) counts from 2016 to 2017 were retrieved. The wavelet coherence analysis generalized...

With the rapid development of wireless sensor networks (WSNs), security WSNs is an important issue in this field because their vulnerabilities to attacks. Designing a reasonable trust management scheme that can evaluate relationships among nodes accurately challenging but meaningful task. In paper, credible Bayesian-based (BTMS) proposed. The overall value aggregated by both direct and indirect information. former calculated modified Bayesian equation updated sliding window. latter computed...

We consider the off-policy estimation problem of estimating expected reward a target policy using samples collected by different behavior policy. Importance sampling (IS) has been key technique to derive (nearly) unbiased estimators, but is known suffer from an excessively high variance in long-horizon problems. In extreme case infinite-horizon problems, IS-based estimator may even be unbounded. this paper, we propose new method that applies IS directly on stationary state-visitation...

In this article, the coverage reliability of wireless sensor network is evaluated from a new perspective. Based on D-S evidence theory, we define concept belief degree sensing result, establish belief-degree-coverage model considering common cause failures, and three indexes to evaluate above model. order calculate sensor's result use membership function obtain basic probability assignment (BPA) results derive calculation formula BPA interference sources. Two algorithms are proposed. The...

This paper proposes a micro‐level diffusion model to analyze individual physicians' adoption of newly launched prescription drug. The probability is function the following factors: physician‐oriented marketing activities, patient requests for new drug, social contagion among physicians, and physician characteristics. There are several major findings: (1) Consistent with previous literature, targeted detailing journal advertising have positive influence on Furthermore, effect meetings events...

We consider off-policy evaluation (OPE), which evaluates the performance of a new policy from observed data collected previous experiments, without requiring execution policy. This finds important applications in areas with high cost or safety concerns, such as medical diagnosis, recommendation systems and robotics. In practice, due to limited information data, it is highly desirable construct rigorous confidence intervals, not just point estimation, for performance. this work, we propose...

Score distillation has emerged as one of the most prevalent approaches for text-to-3D asset synthesis. Essentially, score updates 3D parameters by lifting and back-propagating scores averaged over different views. In this paper, we reveal that gradient estimation in is inherent to high variance. Through lens variance reduction, effectiveness SDS VSD can be interpreted applications various control variates Monte Carlo estimator distilled score. Motivated rethinking based on Stein's identity,...

Many real-life networks can be abstracted into a stochastic-flow network. In this paper, we assume there are several sorts of resource flows transmitting through network with unreliable nodes. We want to find optimal flow allocation and control strategy upon arcs Under strategy, the probability satisfying sink nodes' demand is maximized when transmit from source nodes propose genetic algorithm seek strategy. At last, numerical example given test proposed algorithm.

In a weighted voting system (WVS), outputs of units are sometimes not properly transferred to sink unit because the unreliability links between and unit. this study, WVS model with unreliable is established, two different kinds introduced. Type I have states, which connection disconnection, type II one more state (error state) than links. An approach based on universal generating function method suggested for evaluating Two definitions sensitivity presented, reflect effect link's reliability...

This research proposes a new medical procurement decision-making tool named Evaluation of Medical Technology Procurement (EMTP), which combines Mini-health Assessment (Mini HTA) with the analytic hierarchy process (AHP), as well intuitionistic linguistic multi-criteria group decision model for analysis (MCDA). was applied to device in large provincial general hospital more than 5000 beds China case study. Specifically, AHP evaluation framework is first established determine dimensions and...

QoS multicast routing problem is a nonlinear combination optimization problem, which has been proved to be NP complete problem. hybrid algorithm with ant colony algorithm(ACO) and particle warm algorithm(PSO) presented. The ACO-GA absorbs the merits of ACO GA respectively. In algorithm, position update PSO used regulate solution generated by ACO, can make current cross best paricle all partiles additional, strategy in motified some re-defined arithmetic operators. results test show that meet...

This paper presents a spreadsheet model for the solution of inventory management problems that arise in pharmacy chain stores. Though there have been abundant models management, most these focus on use embedded functions to compute complicated formulas. The presented this paper, however, incorporates simulation ordering process and an iterative procedure search near-optimal solutions, is easy understand by students practitioners. methodology has successfully implemented national pharmacies;...

Life and reliability analysis of hot section components like high pressure turbine (HPT) discs plays an important role for ensuring the engine structural integrity. HPT disc operates under temperatures to withstand complex loadings, its basic parameters, including applied loads, material properties working environments, have shown multi-source uncertainties. The influence these uncertainties on response cannot be ignored. According this, variations loads are quantified fatigue disc. In...