An analysis of the transition proportion for binarization in handwritten historical documents

In this paper, we will present a mathematical analysis of the transition proportion for the normal threshold (NorT) based on the transition method. The transition proportion is a parameter of NorT which plays an important role in the theoretical development of NorT. We will study the mathematical forms of the quadratic equation from which NorT is computed. Through this analysis, we will describe how the transition proportion affects NorT. Then, we will prove that NorT is robust to inaccurate estimations of the transition proportion. Furthermore, our analysis extends to thresholding methods that rely on Bayes rule, and it also gives the mathematical bases for potential applications of the transition proportion as a feature to estimate stroke width and detect regions of interest. In the majority of our experiments, we used a database composed of small images that were extracted from DIBCO 2009 and H-DIBCO 2010 benchmarks. However, we also report evaluations using the original (H-)DIBCO?s benchmarks.     

Cooperation in the evolutionary iterated prisoner’s dilemma game with risk attitude adaptation

The Iterated Prisoner’s Dilemma (IPD) game has been commonly used to investigate the cooperation among competitors. However, most previous studies on the IPD focused solely on maximizing players’ average payoffs without considering their risk preferences. By introducing the concept of income stream risk into the IPD game, this paper presents a novel evolutionary IPD model with agents seeking to balance between average payoffs and risks with respect to their own risk attitudes. We build a new IPD model of multiple agents, in which agents interact with one another in the pair-wise IPD game while adapting their risk attitudes according to their received payoffs. Agents become more risk averse after their payoffs exceed their aspirations, or become more risk seeking after their payoffs fall short of their aspirations. The aspiration levels of agents are determined based on their historical self-payoff information or the payoff information of the agent population. Simulations are conducted to investigate the emergence of cooperation under these two comparison methods. Results indicate that agents can sustain a highly cooperative equilibrium when they consider only their own historical payoffs as aspirations (called historical comparison) in adjusting their risk attitudes. This holds true even for the IPD with a short game encounter, for which cooperation was previously demonstrated difficult. However, when agents evaluate their payoffs in comparison with the population average payoff (called social comparison), those agents with payoffs below the population average tend to be dissatisfied with the game outcomes. This dissatisfaction will induce more risk-seeking behavior of agents in the IPD game, which will constitute a strong deterrent to the emergence of mutual cooperation in the population.     

Historical data learning based dynamic LSP routing for overlay IP/MPLS over WDM networks

Overlay IP/MPLS over WDM network is a promising network architecture starting to gain wide deployments recently. A desirable feature of such a network is to achieve efficient routing with limited information exchanges between the IP/MPLS and the WDM layers. This paper studies dynamic label switched path (LSP) routing in the overlay IP/MPLS over WDM networks. To enhance network performance while maintaining its simplicity, we propose to learn from the historical data of lightpath setup costs maintained by the IP-layer integrated service provider (ISP) when making routing decisions. Using a novel historical data learning scheme for logical link cost estimation, we develop a new dynamic LSP routing method named Existing Link First (ELF) algorithm. Simulation results show that the proposed algorithm significantly outperforms the existing ones under different traffic loads, with either limited or unlimited numbers of optical ports. Effects of the number of candidate routes, add/drop ratio and the amount of historical data are also evaluated.     

苏州留园昆曲观演空间研究

江南园林昆曲观演空间是园林空间与昆曲艺术长期相互作用的产物,具有极高的文化、艺术和研究价值。文章选择苏州留园内的三处昆曲观演空间,利用文献阅读、实地测绘、场景复原等方法,从尺度意境、空间组合、视线组织和昆曲活动等方面进行分析和解读,探索了园林空间与昆曲活动的具体作用机制。留园内三处昆曲观演空间的物理特征与昆曲活动各有特色,呈现出不同的相互作用关系;昆曲活动和三处昆曲观演空间都具有极高的匹配度,通过长期的磨合形成一致的风格趋向,构成了具有鲜明时代特征的昆曲观演空间。     

论谢灵运《山居赋》植物之美

摘要：谢灵运隐居在始宁庄园著《山居赋》以记载植物之美。他提出“贞观厥美”的观物方法,即以一种中立不倚的方法来观山水之“正”,以体察万物之“真”。他在山居中长期细致地观察植物,极物之形、尽物之性、感物之情,写出植物的美趣、生机。谢灵运将山中植物纳入审美欣趣之中,使其具有一种文人气息：另～方面谢灵运描摹植物的自然清新之美,以此体现植物的自然美,与两汉园林的植物之美有质的区别。     

基于多维数据分析的历史建筑评估系统研究

本论文采用多维数据分析方法,针对历史建筑建立数据仓库,用数理统计的新方法如结构方程模型,来科学迅速地确定历史建筑评估体系中各项指标的系数,这是历史建筑评估工作定性和定量的根本保证。这样形成一套科学的、可操作的评估模式,可以有效降低历史建筑开发的风险,对于城市发展建设意义重大。     

An Examination of Tabriz Gardens in Iranian Garden Art

This study was conducted to determine the place of historic gardens in the city of Tabriz vis-a-vis Iranian garden arts. It provides information on the historic gardens of Tabriz, which are no longer in existence, for example, ‘Saheb Abad’ Garden, ‘North’ Garden, ‘Sefa’ Garden, ‘Amir Kabir’ Garden, ‘Saheb Divan’Garden and ‘Fath Abad’ Garden, as well as four historical maps belonging to the Qajar era in the city of Tabriz. In this research, the factors influencing the design of El-Goli Garden were studied, which can be grouped into three major categories: physical, biological and cultural. After a brief study of the above factors in the city of Tabriz and its different microclimates, the types of similarities that exist relating to Iranian garden art were determined.     

笔墨赋情，与古为新——广州粤剧艺术博物馆方案形成历程记录

为展示岭南地区的艺术瑰宝,2012年广州市政府拟于旧城区西关择址建设粤剧艺术博物馆。随着招标工作的展开,社会各界亦积极参与各方案的评选活动。经过层层深化与探讨,最终从民居式、现代式、园林式三种风格中确定以园林式建筑为实施方案。在从多角度入手比较各投标方案差异的基础上,本文对中标方案的设计构思进行阐述,通过对城市历史环境下文化建筑的地域性表达途径的思考,分析该设计方案对于传统艺术延续、城市历史街区更新发展及岭南地域文化传承的意义。     

高密度电阻率法在园博塔选址勘察中的应用

以隧道与围岩的电性差异为前提,应用高密度电阻率法在第九届中国（北京）国际园林博览会选址区勘探。根据全站仪准确定位和温纳方式现场数据采集,再对数据进行处理和地形校正后,应用Res2dinv高密度电阻率数据二维反演软件完成反演,结合二维地电断面解释结果,定量计算确定了鹰山1号隧道平面分布特征和顶部高程,为拟建园博塔的设计和修建提供了相关的技术依据。     

秦岭北麓沿线建筑风格探析——以西安院子为例

本文以秦岭北麓沿线为研究区位,以建筑风格为研究角度。在对秦岭北麓区位特殊性分析的基础上,探讨自然环境和建筑风格的关系,并从气候特征、地貌水系、文化影响三个方面探讨了秦岭北麓自然环境对其沿线建筑风格的影响,最后以西安院子作为案例,加以分析说明。希望在对秦岭北麓特殊区位下的建筑风格探讨的同时,达到建筑风格与环境和谐发展下的保护秦岭生态环境的目的。