1,615 research outputs found
Revisit euphemisms from the perspective of intentionality
This paper studies the role of intentionality in the process of generating euphemisms. Intentionality, as the key to human consciousness activities, is not only the starting point of the language user’s consciousness activity related to euphemism generation, but also functions through the whole generating process. Its functions can be specified as triggering, orientation, and selection. Collective intentionality restricts individual intentionality and has the function of identifying and integrating individual intentionality. Under the effect of collective intentionality and social environment, the euphemisms are renewed with the time and bear features unique to a particular group.
Rehabilitation And Reconstruction Of Islamic Architectural Heritage In China: The Example Of The Ningxia Hui Autonomous Region
The Ningxia Hui Autonomous Region, located in Northwestern China, has the highest concentration of Hui Muslims in China: around 34% of the local population is Hui Muslim. Following the anti-religious campaigns of the communist regime and the wide destruction of the Cultural Revolution, Hui Muslims began gradually to reclaim their Muslim heritage in the late 70's. A major aspect of the rediscovery of their Islamic heritage was the Rehabilitation and reconstruction of Islamic Architectural buildings. As of today, Ningxia counts 4,500 mosques and other religious buildings. The present article seeks to introduce the architectural tendencies at play in this reconstruction, specifically the role of competing Arabic and Chinese influences
Vehicle Speed Aware Computing Task Offloading and Resource Allocation Based on Multi-Agent Reinforcement Learning in a Vehicular Edge Computing Network
For in-vehicle application, the vehicles with different speeds have different
delay requirements. However, vehicle speeds have not been extensively explored,
which may cause mismatching between vehicle speed and its allocated computation
and wireless resource. In this paper, we propose a vehicle speed aware task
offloading and resource allocation strategy, to decrease the energy cost of
executing tasks without exceeding the delay constraint. First, we establish the
vehicle speed aware delay constraint model based on different speeds and task
types. Then, the delay and energy cost of task execution in VEC server and
local terminal are calculated. Next, we formulate a joint optimization of task
offloading and resource allocation to minimize vehicles' energy cost subject to
delay constraints. MADDPG method is employed to obtain offloading and resource
allocation strategy. Simulation results show that our algorithm can achieve
superior performance on energy cost and task completion delay.Comment: 8 pages, 6 figures, Accepted by IEEE International Conference on Edge
Computing 202
A stochastic control problem arising from relaxed wealth tracking with a monotone benchmark process
This paper studies a nonstandard stochastic control problem motivated by the
optimal consumption in an incomplete market with wealth tracking of a
non-decreasing benchmark process. In particular, the monotone benchmark is
modelled by the running maximum of a drifted Brownian motion. We consider a
relaxed tracking formulation using capital injection such that the wealth
compensated by the injected capital dominates the benchmark process at all
times. The stochastic control problem is to maximize the expected utility on
consumption deducted by the cost of the capital injection under the dynamic
floor constraint. By introducing two auxiliary state processes with
reflections, an equivalent auxiliary control problem is formulated and studied
such that the singular control of capital injection and the floor constraint
can be hidden. To tackle the HJB equation with two Neumann boundary conditions,
we establish the existence of a unique classical solution to the dual PDE in a
separation form using some novel probabilistic representations involving the
dual reflected processes and the local time. The proof of the verification
theorem on the optimal feedback control can be carried out by some technical
stochastic flow analysis of the dual reflected processes and estimations of the
optimal control.Comment: Keywords: Non-decreasing benchmark, capital injection, optimal
consumption, Neumann boundary conditions, probabilistic representation,
reflected diffusion processe
An extended Merton problem with relaxed benchmark tracking
This paper studies a Merton's optimal portfolio and consumption problem in an
extended formulation incorporating the tracking of a benchmark process
described by a geometric Brownian motion. We consider a relaxed tracking
formulation such that that the wealth process compensated by a fictitious
capital injection outperforms the external benchmark at all times. The fund
manager aims to maximize the expected utility of consumption deducted by the
cost of the capital injection, where the latter term can also be regarded as
the expected largest shortfall with reference to the benchmark. By introducing
an auxiliary state process with reflection, we formulate and tackle an
equivalent stochastic control problem by means of the dual transform and
probabilistic representation, where the dual PDE can be solved explicitly. On
the strength of the closed-form results, we can derive and verify the feedback
optimal control in the semi-analytical form for the primal control problem,
allowing us to observe and discuss some new and interesting financial
implications on portfolio and consumption decision making induced by the
additional risk-taking in capital injection and the goal of tracking.Comment: Keywords: Benchmark tracking, capital injection, expected largest
shortfall, consumption and portfolio choice, Neumann boundary conditio
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