Renewal of Urban Industrial Zone and Spatial Game in China:A Case Study of Chengdu Eastern Suburb Industrial Zone

The change of system constantly reshapes the urban form of China after 1949,among which the renewal and transformation of industrial zones is a typical phenomenon in the changing process of urban landscape in recent years,which centrally refl ects the development characteristics of contemporary Chinese cities under new social background.From the perspective of spatial game,this paper takes Chengdu Eastern Suburb Industrial Zone as an example,studies and interprets the changes of urban form and the causes of these changes in the renewal process of the industrial zone on the basis of the existing morphological frame and material landscapes,so then shows the particularity and complexity of the process of urban spatial reconstruction with current Chinese characteristics.

Evolutionary games and spatial periodicity

Spatial interactions are considered an important factor influencing a variety of evolutionary processes that take place in structured populations.It still remains an open problem to fully understand evolutionary game dynamics on networks except for certain limiting scenarios such as weak selection.Here we study the evolutionary dynamics of spatial games under strong selection where strategy evolution of individuals becomes deterministic in a fashion of winners taking all.We show that the long term behavior of the evolutionary process eventually converges to a particular basin of attraction,which is either a periodic cycle or a single fixed state depending on specific initial conditions and model parameters.In particular,we find that symmetric starting configurations can induce an exceedingly long transient phase encompassing a large number of aesthetic spatial patterns including the prominent kaleidoscopic cooperation.Our finding holds for any population structure and a broad class of finite games beyond the Prisoner’s Dilemma.Our work offers insights into understanding evolutionary dynamics of spatially extended systems ubiquitous in biology and ecology.

Spatial games and the maintenance of cooperation in an asymmetric Hawk-Dove game

Classical theories explaining the evolution of cooperation often rely on the assumption that the involved players are symmetrically interacted.However,in reality almost all well-documented cooperation systems show that cooperative players are in fact asymmetrically interacted and that this dynamic may greatly affect the cooperative behavior of the involved players.Here,we developed several models based on the most well known spatial game of the Hawk-Dove game,while also considering the effects of asymmetric interaction.Such asymmetric games possess four kinds of strategies:cooperation or defection of strong player and cooperation or defection of weak player.Computer simulations showed that the probability of defection of the strong player decreases with decreasing the benefit to cost ratio,and that all kinds of strategy will be substituted by cooperation on behalf of the strong player if the benefit to cost ratio is sufficiently small.Moreover,weak players find it difficult to survive and the surviving weak players are mostly defectors,similar to the Boxed Pigs game.Interestingly,the patterns of kinds of strategies are chaotic or oscillate in some conditions with the related factors.

A Web Service for Managing Spatial Context Dedicated to Serious Games on and for Smartphones

The GeoEduc3D project aims to provide educational games for smartphones based on Geomatics and use augmented reality techniques in order to make these games more immersive. To improve the immersive and interactive aspects of those games, we focused on the exploitation of spatial context in this particular application framework (serious games, augmented reality, smart phones, and multi-users environment). Our work has thus led to the design of a solution dedicated to the management of spatial context in a multi-players environment on and for smartphones. Several contributions have been made: modeling spatial context, proposing a service-oriented architecture to manage this context, defining a Web Service Spatial Context (WSCS) and implementation of a WSCS prototype and a mobile client according to an environment exploiting FourSquare, a geo-social application.

叙事地图的要素及组织:基于电子游戏“要素-结构-场景”架构的视角

信息通信技术背景下,地图的对象空间从二元空间拓展到三元空间,信息空间的出现给地图学带来的一系列挑战,由地图投影、制图综合、符号系统构成的传统制图学经典理论框架已难以满足元宇宙、虚实融合和人机物融合等带来的空间刻画需求。针对目前叙事地图的理论框架大多面向传统的地图媒介和形式,本文以“要素-结构-场景”为架构探讨了叙事地图在新时代背景和数字载体下的组织形式。明确叙事要素是叙事地图构建的基础,叙事结构为叙事要素提供组织形式,叙事场景为叙事地图的叙事要素和叙事结构的呈现提供载体。鉴于地理环境类电子游戏具有天然的叙事性,本文通过该类游戏对“要素-结构-场景”这一框架进行了例证,旨在为信息通信时代下叙事地图的应用和实践提供理论基础。

视频游戏对空间能力的影响与作用机制

空间能力作为人类基本认知能力,对于个体日常生活和职业发展具有重要意义。近年来,不同领域研究者使用视频游戏作为空间能力的训练环境和测评工具,为进一步理解空间能力的发展机制并在实践中加以培养奠定了新的基础。该文基于前人研究,系统梳理了空间能力的概念和类型,以及视频游戏的类型和界面特征。在此基础上,该研究系统论述了视频游戏对不同类型空间能力的影响,基于信息加工理论和互动层次模型分析了视频游戏影响空间能力的认知机制与交互特征,并阐述其对相关研究和实践的启示。

空间网络的标度性质对Naming Game演化行为的影响

鉴于社会网络结构对于信息传播、共识形成等社会行为的重要影响,在有限能量约束条件下,通过添加距离服从幂律分布的长程连边,构造出具有标度性质的空间网络。在此空间网络上,讨论了引入无意收听机制的Naming Game模型的演化行为。研究发现,存在一个最优的幂指数,使得该空间网络上的Naming Game模型收敛时间最短,当能量约束足够大时,这一最优幂指数趋于1.5附近。本研究说明,社会关系网络中的空间性质对于社会集体认同的形成有很大的影响。

能源效率空间溢出效应及其影响因素研究——基于空间计量方法的实证分析

本文利用DEA博弈交叉效率模型对我国2012~2021年各研究区域以碳排放约束为基础的能源效率展开测算,并进行空间杜宾模型的构建,探讨对能源效率产生影响的因素,并将影响分解为直接效应与溢出效应进行深入探究。研究发现,在2012~2021年,我国地区能源效率有显著的空间依赖性显现出来;在能源效率的影响上,技术进步和产业结构所产生的是正向影响,而城镇化水平和能源消费结构所产生的则是负向影响,且各因素的影响均显著;另外,以空间溢出效应为视角,对于本地区能源效率,其他地区产业结构所产生的是正向溢出效应,而城镇化水平所产生的则是负向溢出效应。

中华体育精神的空间传承与创新——从列斐伏尔的空间生产理论看北京2022年冬奥会

中华体育精神是中华民族在长期体育实践中形成和积淀的优秀精神文化,为实现体育强国和中华民族伟大复兴提供价值引领。运用文献资料调研和逻辑分析研究方法,以列斐伏尔的空间生产理论为理论框架,以北京2022年冬奥会为研究对象,从空间实践、空间表征和表征的空间3个维度,分析北京2022年冬奥会空间生产与中华体育精神传承创新的关系。北京2022年冬奥会空间生产既是北京2022年冬奥会空间的物质化、概念化和感性化的过程,又是北京2022年冬奥会空间的生产者和消费者互动、协商的过程。北京2022年冬奥会空间生产与中华体育精神有着密切关系,既是中华体育精神的具体体现、有效传播和创新发展,又助力实现体育强国和中华民族伟大复兴。

时空众包中的多轮跨平台在线匹配

【目的】为了解决传统单平台任务分配中的供需不平衡问题,跨平台在线匹配成为了一种新兴解决方案,它允许多个类似的平台建立合作关系,将无法完成的任务发送给其他平台,增加任务被接受的概率。然而,目前的跨平台在线匹配都只考虑了单轮的匹配过程,难以在多平台竞争中找到良好的决策结果。为了解决以上不足,研究了多轮跨平台在线匹配问题,并提出了基于贪心的多轮匹配算法和基于多方博弈的匹配算法。【方法】基于贪心的多轮匹配算法通过将任务进行多轮转发和匹配,由平台贪心地选择高收益的任务来完成,以提高任务完成的效率。基于多方博弈的匹配算法则通过建立合作平台之间的激励机制,计算满足纳什均衡的任务分配策略,让平台在竞争中寻找更优的策略,从而实现整体性能的提升。【结果】实验结果表明本文的算法可以提高平台的总收入,体现了本文工作的效果和效率。

Brain activation regions in schizophrenia patients performing the game piece memory task

BACKGROUND： Go, a traditional Chinese chess-like game, requires many unknown functions of the brain including attention, imaging, problem solving and processing of spatial working memory. To date, it remains uncertain whether the intellectual activities required to play Go are related to the frontal lobe. OBJECTIVE： To investigate various patterns of brain region activity while schizophrenic patients and normal subjects engaged in memorizing piece placement in the Chinese game of Go. Spatial working memory was measured in order to validate whether the prefrontal lobe participates in this memory process. DESIGN, TIME AND SETTING： Non-randomized, concurrent control trial was performed at Second Xiangya Hospital of Central South University, between May and December 2004. PARTICIPANTS： A total of nine Chinese schizophrenic patients with no brain or bodily diseases and not undergoing electroshock treatment, who were in accordance with the DSM-Ⅳ criteria for schizophrenia, as well as thirteen healthy staffs and students with matched age, sex, and education were included. Patients and control subjects had no neurological disorders or mental retardation. In addition, all participants were right-handed. METHODS： The cognitive task for functional magnetic resonance imaging was a block design experiment. Both groups were asked to remember the placement of pieces in the Chinese game of Go on a computer screen. A brain activation map was analyzed in SPM99. MAIN OUTCOME MEASURES： Brain responses were compared with regard to activation region size, volume, and asymmetry indices. RESULTS： Compared with the control group, the reaction time was significantly delayed in schizophrenics performing the working memory task （P 〈 0.05）. When performing the tasks, normal subjects showed significant activation of the bilateral dorsolateral prefrontal lobe with left dominance; the asymmetry indices were： frontal lobe, ＋0.32; temporal lobe, 0.58; parietal lobe, 0.41 ; and occipital lobe, 0.34. On the other hand, schizophrenics showed right dominance and had a broader activation region of the prefrontal lobe （asymmetry indices： frontal lobe, 0.10; temporal lobe, ＋0.38; parietal lobe, ＋0.24; and occipital lobe, 0.00）. When comparing the normal group subtracted with the schizophrenic group, no significant lateralization was found in the frontal lobes but significant activation was found in the left anterior central gyrus, left middle frontal gyrus and in both sides of the cingulate gyrus. Comparing the schizophrenic group subtracted with the normal group, there was significant right lateralization of the frontal lobe and abnormally activated regions on both sides of the anterior central gyrus, middle frontal gyrus, left inferior frontal gyrus, right medial frontal gyrus and the right insular lobe. CONCLUSION： Different brain activation regions are involved in memorizing the placement of pieces in Chinese Go between schizophrenia and healthy subjects. Schizophrenics showed right dominance and border activation range, indicating that the prefrontal cortex plays an important role in memory information processing and resource allocation when remembering piece placement in the game of Go.

Species diversity in rock–paper–scissors game coupling with Levy flight

The rock–paper–scissors （RPS） game is a nice model to study the biodiversity in an ecosystem. However, in the previous studies only the nearest-neighbor interaction among the species was considered. In this paper, taking the long-range migration into account, the effects of the interplay between nearest-neighbor-interaction and long-range-interaction given by Levy flight with distance distribution lh （-3 ≤ h 〈-1） in the spatial RPS game are investigated. Taking the probability, exchange rate, and power-law exponent of Levy flight as parameters, the coexistence conditions of three species are given. The critical curves for stable coexistence of three species in the parameter space are presented. It is also found that Levy flight has interesting effects on the final spatiotemporal pattern of the system. The results reveal that the long-range-interaction given by Levy flight exhibits pronounced effects on biodiversity of the ecosystem.

伊恩·麦克尤恩《坚果壳》中的空间博弈

《坚果壳》中的空间博弈关注人物依据不同信息对空间进行争夺所产生的角力,空间既是博弈的媒介,也是博弈的目的。空间博弈的建构涵盖了胎儿叙述者对自身及家庭命运的想象,空间博弈的过程反映了具有表演性质的关系脚本对主体间日常关系的损害,而负和博弈的结局折射出“零度移情”对共同福祉造成的阻碍。当理解、协商、承诺变为博弈中可疑的信息,空间就此沦为质疑、争辩、复仇的场域。麦克尤恩通过空间博弈书写聚焦人物间的意见分歧以及人与环境的隔阂,从而以解构共同体的方式强调他者伦理和责任意识的重要性。

基于委托代理博弈的深圳城中村空间形态差异化现象解释

文章通过引入委托代理博弈理论,构建“政府-村集体代理人-村民”在空间初始划定和违建管控过程中的双重委托代理博弈模型,选取深圳福田区城中村为研究区,重点分析空间秩序较好的水围村、田面村及福田村等3个案例村,探究村集体代理人对委托代理博弈过程及结果的影响,重点揭示为何在整体负面的空间形态下可以自发出现良好的符合规划的空间类型,从而为将城中村纳入规划管理和相应的城市更新空间决策提供参考。

我国市级地方政府间的税收竞争形式研究

本文通过构建完全信息动态博弈模型来求解经济发展水平相同和不同情形下地区间税收竞争的子博弈精炼纳什均衡,同时使用2005-2021年282个市的面板数据,从总税收实际税负、增值税实际税负和企业所得税实际税负三个角度出发,采用准最大似然估计方法对税收竞争反应函数进行估计,分别从理论和实证的维度研究我国地方政府间的税收竞争形式。研究发现,相对经济发展水平的不同决定了地方政府参与税收竞争的优势策略差异;在实证分析中控制了共同冲击产生的异质性影响和本地税收政策对空间关联地区实际税负变化的滞后性反应时,不同税种的税收竞争形式存在显著差异。具体而言,经济发展水平相同或相近地区之间的税收竞争博弈产生的精炼均衡结果为趋同化税收竞争形式,经济发展水平差异越大,则越可能呈现出差异化税收竞争形式;总税收和增值税的税收竞争反应系数符号为负,表明总税收实际税负和增值税实际税负在地区间存在负相关关系,呈差异化税收竞争形式,而企业所得税竞争反应系数为正,表明地区间企业所得税实际税负存在正相关关系,呈趋同化税收竞争形式。

体育强国视域下科技创新对竞技体育实力的影响——基于全运会数据的空间杜宾模型分析

在建设体育强国视域下,抓住科技创新赋能竞技体育发展的战略支点,以第11~14届全运会省际数据为样本,用各省(市、区)全运会金牌获得数量代表竞技体育实力,R&D研发经费投入代表科技创新能力,选取经济发展水平、居民受高等教育水平、体育发展活力、城市化水平四个维度的代表性指标作为控制变量开展研究。结果表明:通过空间莫兰指数,探讨各省竞技体育实力的空间分布特征,发现其存在正向空间相关关系;以0—1地理邻接距离为权重构建空间杜宾模型,发现科技创新水平对竞技体育实力存在空间效应,其对本区域竞技体育具有促进作用,但对相邻区域却有虹吸影响。据此建议:加大科技创新在竞技体育的推广应用,重视“地理邻接原则”,畅通区域间交流机制,发挥高竞技水平区域对相邻地区的辐射作用,共同实现高质量协同发展。

基于空间基因的黄河流域民间游戏谱系构建研究

探究黄河流域民间游戏的空间集聚特征,系统构建黄河流域民间游戏谱系,对于黄河文化保护弘扬与体育非遗传承振兴等具有重要意义。采用GIS空间分析、谱系调查等研究方法,运用Arc GIS 10.6软件从福柯谱系学视角对沿黄游戏进行统计学分析。研究结果表明:黄河流域民间游戏谱系中,地域环境谱系、生活习俗谱系是沿黄游戏发展的环境基础与展演空间,区域文化谱系作为源头活水融于其中。未来可依托黄河流域民间游戏谱系,继续加强相关学术研究,挖掘黄河文化;着眼纵向脉络梳理,深入沿黄游戏历史考古溯源;连接历史放眼未来,落实民族精神内核赓续;集聚整合助力资源,推动黄河流域民间游戏创新发展,为铸就中华文化新辉煌植根铸魂。

广州市文化创意产业空间格局特征及其演变--以游戏产业为例

基于广州市2022年文化创意企业与2000~2022年游戏企业时空数据,运用核密度估计、最邻近指数等方法,分别从不同区域与不同子产业视角,对广州市文化创意产业空间格局特征进行分析,同时以文化创意产业的子产业--游戏产业为实证案例,运用标准差椭圆等方法深入探究游戏产业空间格局的演变过程,并进一步选取区位、交通、地价、设施、人才、产业和政策作为影响因子,构建多元线性回归模型,分析广州游戏产业空间演变的影响机制。结果表明:(1)在市场、文脉、技术、资源以及政策等多重因素的影响下,广州市文化创意产业呈现出显著的趋城市中心特性,并且在中心区外围呈现出“多中心”小规模集聚的空间特征,总体形成了“核心—外围”圈层式布局结构,而文化创意不同子产业之间则表现出不同的空间形态、分布密度和发展阶段;(2)游戏产业进一步在集聚经济、企业衍生、政府规制等因素的影响下,在2000-2022年间,实现了向东向南“单中心集聚—双中心集聚—集聚与扩散并存”的演变过程,反映出广州城市空间结构演变的自身特征。

博弈视角下长三角临港服务业区位重构效应和模式研究

企业是长三角临港服务业区位重构的微观建设主体,而政府则是长三角临港服务业区位重构的宏观治理主体。本文基于博弈的视角聚焦政府与企业两个方面,通过构建长三角临港服务企业的空间博弈模型,探寻长三角地区临港服务业区位重构的效应和模式。最后,本文指出长三角地区政府间的合作博弈与经济一体化发展是临港服务业区位重构的首选模式,并建议由中央政府统一协调与统筹安排,创立相当权威的长三角地区经济发展“三级运作”机构。

长江经济带内河集装箱港口低碳运行效率研究

为提高长江经济带内河集装箱港口低碳运行效率,考虑港口之间存在的竞争关系,运用非期望产出的数据包络分析(data envelopment analysis,DEA)博弈交叉效率模型测度港口低碳运行效率,构建空间杜宾模型分析港口低碳运行效率的影响因素以及进行直接效应和溢出效应分解。结果表明:2010—2020年长江经济带内河集装箱港口低碳运行效率总体水平不高且区域发展不平衡,存在着显著的空间相关性。港口城市从业人数、集装箱吞吐量、CO_(2)排放量对港口低碳运行效率产生显著的正向影响,而外贸水平和产业结构对港口低碳运行效率产生抑制作用。经济水平、城市人口、集疏运条件存在正向空间溢出效应,而产业结构和集装箱吞吐量对邻近地区港口低碳运行效率产生抑制作用。因此,围绕长江经济带产业结构优化进行针对性政策调整,推动外向型产业发展是提高长江经济带港口低碳运行整体效率的当务之急。