Virtual reality and mixed reality for second chance tourism

The deterioration of attractions, landmarks, artefacts and destinations is a critical issue facing tourism across the world. The closure of tourism sites and attractions is increasingly more common due to the difficulty and expense of managing preservation with onsite tourism engagement. However, the closure or destruction of tourism sites presents challenges for tourism development. The inability to foster meaningful visitor engagement at sites has implications for the local communities. This paper aims to explore the efficacy of creating tourism experiences in destinations and sites that have succumbed to over-tourism, resultant deterioration and even, destruction. To achieve this objective, the paper introduces the concept of second chance tourism and the role of innovative preservation methods such as virtual and mixed reality. Based on the proposed framework, the collation of data will provide indications on site preservation and impact mitigation via a second chance to reduce pressure on inherently fragile destinations.     

基于模糊机会约束的物流配送路径优化

在建立基于模糊机会约束的物流配送路径优化问题的数学模型基础上,构造了求解该问题的模糊模拟遗传算法。并用实例验证,结果表明用此算法可以有效的求解此类不确定问题,具有良好的寻优能力。     

Chance Constrained Programming Formulations for Stochastic Characterizations of Efficiency and Dominance in DEA

Pareto-Koopmans efficiency in Data Envelopment Analysis (DEA) is extended to stochastic inputs and outputs via probabilistic input-output vector comparisons in a given empirical production (possibility) set. In contrast to other approaches which have used Chance Constrained Programming formulations in DEA, the emphasis here is on joint chance constraints. An assumption of arbitrary but known probability distributions leads to the P-Model of chance constrained programming. A necessary condition for a DMU to be stochastically efficient and a sufficient condition for a DMU to be non-stochastically efficient are provided. Deterministic equivalents using the zero order decision rules of chance constrained programming and multivariate normal distributions take the form of an extended version of the additive model of DEA. Contacts are also maintained with all of the other presently available deterministic DEA models in the form of easily identified extensions which can be used to formalize the treatment of efficiency when stochastic elements are present.     

我国商业银行跨国经营的战略性机遇

研究表明,追随客户的全球经营是跨国银行形成的关键所在,在经济全球化浪潮中,各跨国银行已成长为资信卓著的全能型金融服务集团。相比之下,除中国银行能称为跨国银行外,我国其它商业银行的跨国经营业务正处于起步阶段,且受到产权制度等问题的困扰,跨国经营仍受到很大程度的制约。然而,在“走出去”战略推动下,我国对外直接投资持续增长,跨国公司不断成长,为我国商业银行的跨国经营提供了战略性机遇。     

利用世博契机,把崇明打造成为“未来岛”——基于城市品牌定位的思考

伴随沪崇苏大桥的开工及中央提出科学发展观,具有国际生态岛地位的崇明如何发展正吸引着大家的关注,地方政府在集思广益基础上将崇明定位为国际现代化生态岛。文章认为这只是完成了基础定位,建议崇明以城市品牌定位理论为指导确立＂未来岛＂的品牌定位,并以婚庆业举例说明此定位发展的巨大前景。进而结合当前迎世博背景,针对利用世博契机,促进崇明建设未来岛,提出若干建议。     

UK Food and Fashion Promoted Online in China

【正】It will be easier for Chinese consumers to get access to British food and fashion,thanks to the new online initiatives of the UK in China’s fast-growing e-ma...     

基于机会约束的在险收益动态投资决策模型

本文在标准Black-Scholes型金融市场假设下,利用在险收益(EaR)来度量投资组合的风险,建立了基于机会约束的在险收益动态投资决策模型,讨论了最优常数再调整策略意义下的最优投资策略,给出了有效边界的显式表达式,并结合算例说明了模型的求解方法。     

浅析我国物流企业如何应对“入世”——奏好“应对”四部曲喜迎“入世”尽快来

分析当前物流企业迎接“入世”的客观形势,提出了物流企业迎接“入世”,应着重解决好至关重要的四个相互关联的紧迫问题,即奏好“应对”四部曲：心入曲、行动曲、补习曲、协同曲。     

地方政府在西部开发中的重要作用

在西部大开发中，西部地区的地方政府起着举足轻重的作用。本文从地方政府的角度，阐述了开发西部的基本思路。