A Comparative Analysis of Cognitive Systems for the Prediction of Drillability of Rocks and Wear Factor     

T. N. Singh  A. R. Gupta  R. Sain 《Geotechnical and Geological Engineering》2006,24(2):299-312

This paper demonstrates the applicability of cognitive systems or neural networks in predicting the drillibality of rocks and wear factor using engineering properties of rocks. Drillability of rocks is a useful guide for evaluating the suitability of drills for different ground operations. The wear factor of different materials subsequently helps in the selection of proper drills for different drilling operations. Different rocks were tested for Protodyakonov index, impact strength index, shore hardness number, Schmidt hammer number, drillability and micro bit chisels for wear factor. The data obtained from the tests were used to train and test the neural network. Results from the analysis demonstrate that cognitive systems are an effective tool in the prediction and suitability of drilling operations. Application of these predictive models can be a useful tool to obtain the value of these important parameters, they can save time and help to avoid the tedious process of instrumentation.  相似文献   

翁文波院士的信息预测理论体系的创新性及其意义   总被引：12，自引：1，他引：12       下载免费PDF全文

徐道一  王明太  耿庆国  汪纬林 《地球物理学进展》2007,22(4):1375-1379

翁文波院士提出的信息预测理论体系是一个具有自主创新的体系.它的创新性表现在下列几个方面：（1）翁先生创造性地提出：认识可划分为三个层次的认识体系：抽象体系、物理体系、信息体系.其中“信息体系”是翁先生第一个提出的；（2）对数据基本性质的新认识，特别是指出自然数、整数在研究和预测中的重要性；（3）翁先生新提出信息预测，它与统计预测有很大不同等等.翁先生的信息预测理论在天灾预测实际中取得了丰硕的成功预测成果.  相似文献   

移动地图应用模式及其空间认知功能研究   总被引：1，自引：0，他引：1  

王慧谟  张瑜 《测绘科学》2007,32(6):61-62,51

移动地图是随着地理信息技术、卫星定位技术和移动通信技术的发展出现的新的地图应用形式,为人们通过移动设备享用地理信息服务提供了方便。文章阐述了移动地图的概念及其特点,分析了移动地图的应用结构,从移动地图的内容选取、可视化方法和地图可用性三个方面详细分析了移动地图的空间认知特征,强调"以消费者为中心"在移动地图系统开发应用中的重要作用。  相似文献   

虚拟地理环境的认知研究框架初探     

贾奋励  张威巍  游雄 《遥感学报》2015,19(2):179-187

作为新一代地理分析工具,虚拟地理环境对于增强人类地理认知、分析解决地理问题方面具有显著优势。目前虚拟地理环境的基本框架、实现技术均有较多论述与成果。但在虚拟地理环境的认知研究方面尚缺乏有效指导。为提高虚拟地理环境构建的科学性,本文通过对虚拟地理环境现有概念的分析,提出从系统论角度进行虚拟地理环境认知研究的观点;并对虚拟地理环境的认知与地理认知、地图认知等相近概念进行了对比分析。从现实环境与虚拟环境间的相似性入手建立了虚拟地理环境的认知研究框架,该框架从思维相似、感觉相似、几何相似、特性相似和离散相似5个方面探讨了虚拟地理环境认知研究目前的着眼点,并将思维相似作为虚拟地理环境认知研究的重点与难点。该框架将虚拟地理环境的认知问题置于一个更广泛背景中进行研究,一方面体现了虚拟地理环境所具有的地理实验研究新平台的作用,另一方面重点强调了人的作用,对深入开展虚拟地理环境的研究具有重要意义。  相似文献   

THE IDENTIFICATION OF REGIONAL BOUNDARIES ON COGNITIVE MAPS*     

Robert Lloyd  Theodore Steinke 《The Professional geographer》1986,38(2):149-159

This study investigates regions on cognitive maps and methods used to identify their boundaries. Subjects either drew regional boundaries on a map or decided in which region sample points were located. These methods produced similar results with differences associated more with regional boundaries than cores. The amount of time needed to make point decisions demonstrated the subjects' cognitive process and corroborated boundaries and cores for the cognitive regions. Differences among subjects' maps were greater when boundaries were drawn.  相似文献   

Cartographic Design and Usability of Visual Variables for Linear Features   总被引：1，自引：0，他引：1  

Petr Kubíček  Zdeněk Stachoň  Zbyněk Štěrba  Jiří Apeltauer  Tomáš Urbánek 《The Cartographic journal》2017,54(1):91-102

This article addresses the measurement and assessment of response times and error rates in map-reading tasks relative to various modes of linear feature visualization. In a between-subject design study, participants completed a set of map-reading tasks generated by approaches to a traffic problem. These entailed quick and correct decoding of graphically represented quantitative and qualitative spatial information. The tasks first involved the decoding of one graphic variable, then of two variables simultaneously. While alternative representations of qualitative information included colour hue and symbol shape, the quantitative information was communicated either through symbol size or colour value. In bivariate tasks, quantitative and qualitative graphical elements were combined in a single display. Individual differences were also examined. The concept of cognitive style partially explains the variability in people’s perception and thinking, describing individual preferences in object representation and problem-solving strategies. The data obtained in the experiment suggest that alternative forms of visualization may have different impacts on performance in map-reading tasks: colour hue and size proved more efficient in communicating information than shape and colour value. Apart from this, it was shown that individual facets of cognitive style may affect task performance, depending on the type of visualization employed.  相似文献   

长三角空间范围认知地图调查与分析     

徐鹏飞  王宁忆  唐曦 《测绘与空间地理信息》2017,(8)

认知地图是心理学与地理学跨学科结合的产物,广泛应用于城市空间规划、出行行为优化等方面。本文从认知地图的角度,分析和讨论了人们对于长三角地区的认知情况及认知构建原因。运用认知地图法中的圈域图示法,对华东师范大学学生进行问卷抽样调查,共发放问卷350份。将获取的问卷数据运用ArcGIS软件数字化,Corel DRAW软件和Excel进行统计数据分析,研究华东师范大学学生长三角认知地图与官方所给出的长三角范围的异同及其原因。分析结果显示,长三角认知地图与客观实际存在明显差异,体现了社会大众认知的滞后性。文科、理工科学生因为思维模式的差异而导致认知地图的差异性。华东师范大学学生绝大多数是从自然环境和社会经济的角度来构建对长三角的模糊认知。  相似文献   

Measurements of the Cognitive Level of Ecotourists for the Tourism Environment in the Mountain Resorts     

CHENG Jinhong  LI Shuxiao  CHENG Zhanhong 《资源与生态学报(英文版)》2021,12(5):707-714

Tourists are the main body of tourism activities, and studying the environmental cognition of tourists is beneficial for the environmental management of scenic spots. In this article, data obtained by questionnaire were used to compose a data matrix of 169×10 dimensions, and the cognitive level of ecotourists for the tourism environment was measured by two-way indicator species analysis (TWINSPAN) and detrended correspondence analysis (DCA) in Luya Mountain Nature Reserve. This analysis revealed three main points. (1) TWINSPAN divided all the samples into the strict environment protection type, the ordinary environment protection type, the occasional environment protection type, and the natural enjoyment type. Both the strict and ordinary environment protection types agreed with biocentrism and had a consciousness regarding the protection of nature, but the former advocated that tourism activities should be restricted in nature reserves, while the latter did not agree with restrictions on tourism activities. The occasional environment protection types denied biocentrism; on the one hand, they thought that nature should serve human beings, but on the other hand, they showed a tendency toward environmental protection. The natural enjoyment type argued that natural resources should be maximized to meet human needs. (2) There were significant correlations between the first axis of the DCA and gender, age, education, number of trips, and cognition of nature reserve function, and the second axis of DCA was significantly correlated with gender, age, and education level. Under the impact of all the factors in the DCA figure, ecotourist types transitioned gradually from the first type to the second, the third, and the fourth types along the diagonal line, and accordingly, their cognitive level for the tourism environment was reduced slowly. (3) For nature reserves, the strict environment protection type had 74 people, who was the most popular. The ordinary and occasional environment protection types had 43 people and 31 people, respectively, who should be strived to raise environmental awareness. The natural enjoyment type had 21 people, who must be systematically educated.  相似文献   

基于城市意象的旅游节庆品牌认知研究     

张娇  吴小根  钟思琪 《地域研究与开发》2016,(3):92-97

旅游节庆品牌认知是衡量游客认识和理解节庆品牌内涵及价值的标准,城市旅游节庆的主题也体现了城市意象的相关元素。在分析台北市地理区位、社会文化和城市功能等属性后,明确了台北具有"生态、创意、旅游"三大城市意象。以台北101跨年晚会为例,研究旅游节庆品牌认知对游客支持意愿的影响,分析旅游节庆对推广城市意象的作用。研究结果表明:品牌知名度、品牌联想、感知质量、感知价值、品牌信任、品牌忠诚度是影响游客支持意愿的六大驱动因素;节庆品牌认知对支持意愿的影响存在年龄、学历和居住地三方面的群体差异性;基于城市意象特征塑造旅游节庆品牌有利于推广城市意象,并延长节庆品牌的生命周期。  相似文献   

The world,the computer,and the mind: how Andrew Frank helped make human language and cognition cornerstones of geographic information science     

Daniel R. Montello  David M. Mark 《International journal of geographical information science》2018,32(12):2535-2550

During the late 1980s and early 1990s, cognitive science was included as one of the key disciplines in the emerging multidisciplinary field of geographic information science (GIScience). One of the key proponents and popularizers of the study of human cognition as part of GIScience – and one of its major researchers – has been Andrew U. Frank. In this essay, we review the history of Andrew Frank’s role as an innovator and champion for cognitive GIScience, and summarize some of his research contributions in this domain. Taken along with his contributions to other areas of GIScience, this review shows that Andrew Frank has been one of the primary figures in modern GIScience, and among its very broadest and intellectually-diverse contributors.  相似文献