首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
ABSTRACT

Jacques Bertin’s legacy extends beyond the domain of cartography, and in particular to the field of information visualization where he continues to inspire researchers and practitioners. Although in the late twentieth century his books were out of print, their reedition around 2010 has steered a renewed interest and inspired new generations of researchers to reinterpret the principles of Semiology of Graphics and La Graphique in a time of interactive computers. In particular, the work of Jacques Bertin on the reorderable matrix has been very challenging in his time, and the quest to its automation has not been satisfactory to him. This article summarizes Bertin’s approach to the reorderable matrix, underlines the limitations of fully automated reordering methods, and introduces Bertifier, a hybrid system to reorder matrices using a combination of machine assistance and human control.  相似文献   

2.
ABSTRACT

Bertin’s first book, Semiology of Graphics, was published in 1967. His second book, Graphics and Graphic Information Processing, was subsequently published in 1977. The word “processing” in the title of the second book is interesting because in those days there were no personal computers with an interactive display system. But in Bertin’s laboratory there were many kinds of tool kits – basically manually developed thematic maps and data analysis. Bertin’s methods were concerned with making a thematic map and data visualization. Maps, and more generally graphics, were represented by sets of cartographic symbols. Thus, they are abstractions that demand both theoretical and technical literacy to represent and understand them. If the representation is systematic, a sort of tool kit might be necessary, because the representation demands consistency based on the theory. Otherwise a cartographer faces the risk of an unstable and unintelligible representation. In this paper, we discuss the discrimination between tool kits intended either for an automated system or a process assisting system. The latter process might be useful and necessary to develop a graphic way of thinking. This investigation refers to Bertin’s books, materials conserved at the National Archives in Paris, and other related software developed later.

Abbreviation: EHESS: Ecole des Hautes Etudes en Sciences Sociales inherited Ecole Pratique des Hautes Etudes since 1975  相似文献   

3.
ABSTRACT

Nearly 50 years after the publication of the first French edition of Sémiologie Graphique, Jacques Bertin’s thought is more than ever alive, in cartography as well as in various other disciplines, such as graphic design or visual data analysis. This article recalls the main elements of Bertin’s career and puts forward the salient points of his reflection on graphics. Beyond many conceptual or technical innovations, Bertin’s essential originality appears to be his attempt to propose a general framework for graphical representations.  相似文献   

4.
ABSTRACT

Semiology of Graphics is a seminal work of contemporary cartography. Published in 1967 by Jacques Bertin, the book attracted as much mistrust as it did interest even if some claims seem obsolete or outdated with the advent of GIS. This article discusses some underlying perspectives regarding an Arabic translation of Sémiologie Graphique. First, one may question the usefulness and the language of translation, and what issues readers should learn or be aware of before reading the book. In the Arab world, little research has engaged graphical semiology and its paradigms are rarely encountered. Second, only a limited number of graphical procedures have been experimented or implemented by digital means. There is a gap between some theoretical statements and their practical applications. Third, many other semiological aspects remain, in substance, little known in detail. This article considers whether these should be revisited by visualization and graphical analytics.  相似文献   

5.
ABSTRACT

In this article, we describe some ideas based on Bertin’s Sémiologie Graphique with a focus on extending it for aesthetic quality issues in cartography. We consider research in semiotics, aesthetics, and graphic design, with some fruitful results about the use of color or composition. We present several tools, oriented toward a pedagogical use and accessibility, helping to examine the color composition of an expressing image or to create meaningful gradients. While Bertin’s concepts still remain relevant and efficient, specific ideas can be developed further, to adapt to current media and gain from scientific advances from related disciplines.  相似文献   

6.
《The Cartographic journal》2013,50(2):176-180
Abstract

The main goal of this research is to set a group of typographic criteria to suit a wide array of map users. A group of Bertin’s visual variables were applied individually and associatively for the same set of labels. Two kinds of maps (with point and areal objects) were presented to expert and non-expert map users and analysed accordingly. Additionally, the effect of gender variation was taken into account. The data were aggregated and studied for each graphical variable. For some combinations of Bertin’s variables, statistically significant differences were detected in the preferences of the different map users (e.g. male versus female and expert versus non-expert). Consequently, we identified which graphical variables (individually or combined) were more preferred by specific user groups in relation to their application on text objects.  相似文献   

7.
ABSTRACT

Typographic variables were only briefly discussed by Bertin with no example applications. We review historic examples to extend Bertin’s framework with literal encoding, 10 typographic attributes, variations on scope including characters, words, phrases and paragraphs, and more layout types. We then apply the framework to Bertin’s population dataset to create 11 new typographic visualizations. The approach raises questions for new research such as readability, semantic association, interaction, and comprehension.  相似文献   

8.
Big data analytics: six techniques   总被引:1,自引:0,他引:1  
Abstract

Big data have 4V characteristics of volume, variety, velocity, and veracity, which authentically calls for big data analytics. However, what are the dominant characteristics of big data analysis? Here, the analytics is related to the entire methodology rather than the individual specific analysis. In this paper, six techniques concerning big data analytics are proposed, which include: (1) Ensemble analysis related to a large volume of data, (2) Association analysis related to unknown data sampling, (3) High-dimensional analysis related to a variety of data, (4) Deep analysis related to the veracity of data, (5) Precision analysis related to the veracity of data, and (6) Divide-and-conquer analysis related to the velocity of data. The essential of big data analytics is the structural analysis of big data in an optimal criterion of physics, computation, and human cognition. Fundamentally, two theoretical challenges, ie the violation of independent and identical distribution, and the extension of general set-theory, are posed. In particular, we have illustrated three kinds of association in geographical big data, ie geometrical associations in space and time, spatiotemporal correlations in statistics, and space-time relations in semantics. Furthermore, we have illustrated three kinds of spatiotemporal data analysis, ie measurement (observation) adjustment of geometrical quantities, human spatial behavior analysis with trajectories, data assimilation of physical models and various observations, from which spatiotemporal big data analysis may be largely derived.  相似文献   

9.
以人工智能背景下的智能地图制图为切入点,分析了时空大数据给地图学带来的冲击,指出地图可能的三个演化方向,剖析了智能制图内涵及其具有的众源数据、用户参与、模型耦合和可视化分析等特征,深入讨论智能制图显性和隐性知识表征,提出建立地图知识图谱的构想,总结了基于低代码技术的平台开发范式。  相似文献   

10.
Abstract

Colour is considered a key means of expression for use in cartographic works. This is because colours and the relations among them influence not only the aesthetic impression a map creates but also its overall utility. In addition to Newton’s spectral colour theory, today theories with origins in artistic technique are gaining ground in cartography. This article introduces J. Itten’s colour theory (first published in 1961 in The Art of Colour [Kunst der Farbe]) with special attention given to his concept of seven colour contrasts. The article also discusses the suitability and unsuitability of their application in practical cartography, and it contributes original examples employing thematic maps, a discipline with broad possibilities for the application of these inventive methods by today’s mapmakers.  相似文献   

11.
Abstract

Geographical information is connected to everyday life in many ways. Web cartography has made geospatial data more available to the public. In the next few years, the average age of the population will be over 51 years, with more than 15% of the population over the age of 65 years. The fact that the senior population is increasing suggests that online mapping and map viewer design should be aware of the senior population’s visual restrictions, as well as restrictions of other potential map users, including colour-vision-impaired users. This paper describes the senior population’s visual restrictions that can be compared with colour-vision-impaired users and provides guidelines with regard to online mapping and map viewer design for this growing segment of the elderly population.  相似文献   

12.
The author, in response to a critical review of his book on automation in cartography by K. A. Salishchev (see preceding article), defends his ideas on “raster digitizing” (proposed as only one of several approaches to cartographic automation) by documenting the need for a certain level of uniformity in the storage and presentation of information. In the process he continues a debate on the theoretical basis that should govern the development of automated cartography that occupied the entire “Cartography” section of the May 1986 issue of Geodeziya i kartografiya. In a preface to the section, the editorial board of the Soviet journal emphasized that there is no single, universally accepted position on standards for automating cartography or on the ultimate role automation should play in the discipline as a whole. Translated from: Geodeziya i kartografiya, 1986, No. 5, pp. 38–43.  相似文献   

13.
大数据时代,交通数据如何更快更准确地实时反映交通状况成为研究热点。使用不同交通数据对不同的研究主题进行可视分析,进而揭示蕴含的交通信息知识,为交通部门提供决策支持。首先,分析了大数据的基本特征,总结了大数据可视分析的研究现状;其次,对交通大数据的基本构成、获取方式及数据类型特点进行详细描述;最后,按照不同的研究主题选择不同的数据源与不同的可视化表达方式,揭示不同研究主题蕴含的交通规律,为交通大数据的自动模型分析提供可靠的可视化知识。  相似文献   

14.
The author, in a review of Ye. Ye. Shiryayev's book, Cartographic Presentation, Transformation, and Analysis of Geoinformation, addresses several issues in the automation of cartography—in particular what he perceives as a growing tendency to underestimate the importance of understanding the information being portrayed on maps. A formalistic (strictly quantitative) view of generalization that focuses on preservation or minimization of the loss of information on an initial map ignores the potential for the creation of new knowledge through the abstraction and elimination of information about lower-order systems. Salishchev criticizes Shiryayev's method of “raster digitizing” on such formalistic grounds, and because of its lack of visual quality and purported indiscriminate application within cartography. Shiryayev's reply to Salishchev's comments appears in the following paper of this issue. Translated from: Geodeziya i kartografiya, 1985, No. 11, pp. 59–61.  相似文献   

15.
SensePlace3 (SP3) is a geovisual analytics framework and web application that supports overview + detail analysis of social media, focusing on extracting meaningful information from the Twitterverse. SP3 leverages social media related to crisis events. It differs from most existing systems by enabling an analyst to obtain place-relevant information from tweets that have implicit as well as explicit geography. Specifically, SP3 includes not just the ability to utilize the explicit geography of geolocated tweets but also analyze implicit geography by recognizing and geolocating references in both tweet text, which indicates locations tweeted about, and in Twitter profiles, which indicates locations affiliated with users. Key features of SP3 reported here include flexible search and filtering capabilities to support information foraging; an ingest, processing, and indexing pipeline that produces near real-time access for big streaming data; and a novel strategy for implementing a web-based multi-view visual interface with dynamic linking of entities across views. The SP3 system architecture was designed to support crisis management applications, but its design flexibility makes it easily adaptable to other domains. We also report on a user study that provided input to SP3 interface design and suggests next steps for effective spatiotemporal analytics using social media sources.  相似文献   

16.
ABSTRACT

Since Al Gore created the vision for Digital Earth in 1998, a wide range of research in this field has been published in journals. However, little attention has been paid to bibliometric analysis of the literature on Digital Earth. This study uses a bibliometric analysis methodology to study the publications related to Digital Earth in the Science Citation Index database and Social Science Citation Index database (via the Web of Science online services) during the period from 1998 to 2015. In this paper, we developed a novel keyword set for ‘Digital Earth’. Using this keyword set, 11,061 scientific articles from 23 subject categories were retrieved. Based on the searched articles, we analyzed the spatiotemporal characteristics of publication outputs, the subject categories and the major journals. Then, authors’ performance, affiliations, cooperation, and funding institutes were evaluated. Finally, keywords were examined. Through keyword clustering, research hotspots in the field of Digital Earth were detected. We assume that the results coincide well with the position of Digital Earth research in the context of big data.  相似文献   

17.
大数据智能时代地图学课程内容改革探索   总被引:1,自引:0,他引:1  
刘慧敏  邓敏  刘宝举  陈杰 《测绘通报》2021,(6):152-155,165
为了适应当前智能时代大数据的特点和地图应用的发展,本文结合当前地图学课程内容设置现状,分析在大数据时代地图学教学的特点,多源地理信息的参考体系差异、多维度地理信息高效可视化、多尺度表达的灵性化、地图用户需求的多样化等对地图学教学提出的新要求,在此基础上,结合地图学课程教学的理论与实践目标,提出在地图数学基础、地图可视化技术、地图综合和地图分析等进行课程教学内容改革的主要思路,增设新型坐标系知识、多维动态可视化技术、地图应需综合的多尺度表达方法、全息地图理论等主要知识点,并给出了课程实验教学改革的设计。  相似文献   

18.
介绍了可视分析的概念和内涵,分析了可视分析与可视化、地理空间可视分析等概念的关系。研究了地理空间可视分析的概念和内涵,在此基础上提出了地理空间可视分析的5个重要研究方向:面向可视分析的地理空间数据转换;多维地理空间数据的深层可视化表达和分析;地理空间可视分析推理;地理空间数据的协同可视分析和决策;地理空间数据可视分析工具的设计和评估。  相似文献   

19.
ABSTRACT

Eighty percent of big data are associated with spatial information, and thus are Big Spatial Data (BSD). BSD provides new and great opportunities to rework problems in urban and environmental sustainability with advanced BSD analytics. To fully leverage the advantages of BSD, it is integrated with conventional data (e.g. remote sensing images) and improved methods are developed. This paper introduces four case studies: (1) Detection of polycentric urban structures; (2) Evaluation of urban vibrancy; (3) Estimation of population exposure to PM2.5; and (4) Urban land-use classification via deep learning. The results provide evidence that integrated methods can harness the advantages of both traditional data and BSD. Meanwhile, they can also improve the effectiveness of big data itself. Finally, this study makes three key recommendations for the development of BSD with regards to data fusion, data and predicting analytics, and theoretical modeling.  相似文献   

20.
廖克 《测绘学报》2017,46(10):1517-1525
本文分3部分:第1部分是中国古代和近代地图学发展历史的简要回顾,阐明中国是世界上地图出现最早的国家之一,在世界地图学发展史上占有重要地位,对世界地图学的发展作出过重要贡献,直至15世纪的中国明代,中国地图和地图学始终领先于西方国家,只是清代以后,才落后于西方发达国家;第2部分阐述新中国成立后中国地图事业和地图学飞速发展,在全国地形图的测绘与编制、专题地图与地图集编制、遥感制图、计算机制图、多媒体电子地图、移动通信地图、互联网地图、地图学理论研究等方面取得了巨大成就,赶上了世界先进水平;第3部分提出新世纪中国地图与地图学方向与任务的调整,分析了大数据、互联网和人工智能时代地图学的机遇、挑战与展望。大数据通过三维动态地图可视化,能够显示事物和现象的空间格局与区域分异及时空动态变化,进而作出分析评价、预测预报、区划布局、规划设计、管理调控。因此地图学在大数据时代能够发挥重要作用。今后互联网将成为地图编制与应用的主要平台,地图会更加大众化、个性化、智能化与实用化。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号