scholarly journals Approaching Bike Hazards via Crowdsourcing of Volunteered Geographic Information

2020 ◽  
Vol 12 (17) ◽  
pp. 7015
Author(s):  
Rafael Hologa ◽  
Nils Riach
Keyword(s):  
Small Group ◽  
Volunteered Geographic Information ◽  
Smartphone Application ◽  
Geographic Information ◽  
Urban Cycling ◽  
Accident Data ◽  
The Individual ◽  
Key Aspects ◽  
The City

Information on individual hazard perception while cycling and the associated feeling of safety are key aspects to foster sustainable urban cycling mobility. Although cyclist’s perceptions must also be critically reviewed, such crowdsourced Volunteered Geographic Information (VGI) provides wide-ranging insights on diverse hazard categories in cycling. In this case study in the city of Freiburg, Germany, hazard perceptions, information about lane types, and the underlying routes were crowdsourced via an open source smartphone application by a small group with the aim of providing cyclists with effective solutions. By dealing with levels of reliability, we show that even a small group of laypersons can generate an extensive and valuable set of VGI consisting of comprehensive hazard categories. We demonstrate that (1) certain hazards are interlinked to specific lane types, and (2) the individual hazard perceptions and objective parameters, i.e., accident data, are often congruent spatially; consequently, (3) dangerous hot spots can be derived. By considering cyclists’ needs, this approach outlines how a people-based perspective can supplement regional planning on the local scale.

Three Dimensional Volunteered Geographic Information

2014 ◽  
Vol 3 (2) ◽  
pp. 19-34 ◽  
Author(s):  
Maria Antonia Brovelli ◽  
Marco Minghini ◽  
Giorgio Zamboni
Keyword(s):  
Mobile Devices ◽  
3D Visualization ◽  
Three Dimensional ◽  
Volunteered Geographic Information ◽  
Expressive Power ◽  
Geographic Information ◽  
Field Surveys ◽  
Virtual Globes ◽  
Third Dimension ◽  
The City

The dawn of GeoWeb 2.0, the geographic extension of Web 2.0, has opened new possibilities in terms of online dissemination and sharing of geospatial contents, thus laying the foundations for a fruitful development of Volunteered Geographic Information (VGI) systems. The purpose of the study is to investigate the extension of VGI applications, which are quite mature in the traditional bi-dimensional framework, up to the third dimension by means of virtual globes. Inspired by the visionary idea of Digital Earth, virtual globes are changing the way people approach to geographic information on the Web. Unlike the 2D visualization typical of Geographic Information Systems (GIS), virtual globes offer multi-dimensional, fully-realistic content visualization which allows for a much richer user experience. The proposed system should couple a powerful 3D visualization with an increase of public participation thanks to a tool allowing data collecting from mobile devices (e.g. smartphones and tablets). The participative application, built using the open source NASA World Wind virtual globe, is focused on the cultural and tourism heritage of Como city, located in Northern Italy. Users can create and manage customized projects and populate a catalogue of cartographic layers which is available to the entire community. Together with historical maps and the current cartography of the city, the system is also able to manage geo-tagged data, which come from user field-surveys performed through mobile devices in order to report POIs (Points Of Interest). Users can also extend POIs information adding more textual and multimedia contexts (e.g. images, audios and videos) directly on the globe. All in all, the resulting application allows users to create and share contributions as it usually happens on social platforms, additionally providing a realistic 3D representation enhancing the expressive power of data.

scholarly journals A Thematic Similarity Network Approach for Analysis of Places Using Volunteered Geographic Information

2020 ◽  
Vol 9 (6) ◽  
pp. 385 ◽  
Author(s):  
Xiaoyi Yuan ◽  
Andrew Crooks ◽  
Andreas Züfle
Keyword(s):  
New York ◽  
Low Income ◽  
Topic Modeling ◽  
Volunteered Geographic Information ◽  
Geographic Information ◽  
Network Approach ◽  
Similarity Network ◽  
Textural Data ◽  
Restaurant Reviews

The research presented in this paper proposes a thematic network approach to explore rich relationships between places. We connect places in networks through their thematic similarities by applying topic modeling to the textual volunteered geographic information (VGI) pertaining to the places. The network approach enhances previous research involving place clustering using geo-textual information, which often simplifies relationships between places to be either in-cluster or out-of-cluster. To demonstrate our approach, we use as a case study in Manhattan (New York) that compares networks constructed from three different geo-textural data sources—TripAdvisor attraction reviews, TripAdvisor restaurant reviews, and Twitter data. The results showcase how the thematic similarity network approach enables us to conduct clustering analysis as well as node-to-node and node-to-cluster analysis, which is fruitful for understanding how places are connected through individuals’ experiences. Furthermore, by enriching the networks with geodemographic information as node attributes, we discovered that some low-income communities in Manhattan have distinctive restaurant cultures. Even though geolocated tweets are not always related to place they are posted from, our case study demonstrates that topic modeling is an efficient method to filter out the place-irrelevant tweets and therefore refining how of places can be studied.

scholarly journals THE STRUCTURE OF SPACE: CUBISM AND MODERNISM. FIGURES AND ICONS IN JOSEF GOČÁR’S WORK

2017 ◽  
Vol 41 (1) ◽  
pp. 9-21
Author(s):  
Domenico Giuseppe CHIZZONITI
Keyword(s):  
Architectural Design ◽  
Close Association ◽  
Fine Arts ◽  
Practical Experience ◽  
Design Work ◽  
Time Period ◽  
The Individual ◽  
The City

This research paper relates to a number of works by Josef Gočár, a Bohemian architect who was active in a time period between “Cubist” vanguardism and “Rationalist” modernism. The theme regards the search for a general method which evaluates the key elements of the structure of space in architectural design. The main asset of architectural composition has traditionally been the close association between the syntactic order of the elements and a semantic perception of space. The aim of this essay is to explore the relation between the role of the experimental design regarding the multiple and changeable architectural experience and the creative process of architectural work. The methodological experience hereby demonstrated refers to a specific case study that belongs to the scientific research carried out by Gočár and his researchers’ group at the Prague Fine Arts Academy (AVU). His work is hereby re-interpreted in an effort to explore the experiential contribution to the architectural design discipline, and the figurative aspect, by reexamining various characteristics of his practical experience as an architect involved in the civic priorities of the city, from the scale of urban settlement to the individual design work.

Boundaries of reasoning in cases: The visual psychoanalysis of René Spitz

2020 ◽  
Vol 33 (3-4) ◽  
pp. 66-84
Author(s):  
Rachel Weitzenkorn
Keyword(s):  
Experimental Psychology ◽  
Developmental Psychology ◽  
Patient Relationship ◽  
Visual Displays ◽  
Doctor Patient Relationship ◽  
Interpersonal Emotions ◽  
The Individual ◽  
Key Aspects

This article argues that the foundational separation between psychoanalysis and experimental psychology was challenged in important ways by psychoanalytic infant researchers. Through a close examination of American psychoanalyst René Spitz (1887–1974), it extends John Forrester’s conception of reasoning in cases outside classic psychoanalytic practices. Specifically, the article interrogates the foundations of reasoning in cases—the individual, language, and the doctor–patient relationship—to show how these are reimagined in relation to the structures of American developmental psychology. The article argues that the staunch separation of experimental psychology and psychoanalysis, reiterated by philosophers and historians of psychology, is flimsy at best—and, conversely, that the maintenance of these boundaries enabled the production of a cinematic case study. Spitz created films that used little language and took place outside the consulting room with institutionalized infants. Yet key aspects of the psychoanalytic case, as put forth by John Forrester, were depicted visually. These visual displays of transference, failure, and interpersonal emotions highlight the foundations of what Forrester means by reasoning in cases. The article concludes that Spitz failed at creating classic psychoanalytic evidence, but in so doing stretched the epistemology of the case.

An Integrated Method for Assessing the Text Content Quality of Volunteered Geographic Information in Disaster Management

2017 ◽  
Vol 9 (2) ◽  
pp. 1-17
Author(s):  
Kuo-Chih Hung ◽  
Mohsen Kalantari ◽  
Abbas Rajabifard
Keyword(s):  
Disaster Management ◽  
Volunteered Geographic Information ◽  
Geographic Information ◽  
Content Quality ◽  
Integrated Method ◽  
Needed Information ◽  
Text Content ◽  
Flooding Events

Volunteered geographic information (VGI) has the potential to provide much-needed information for emergency management stakeholders. However, stakeholders often lack scalability to identify useful and high-quality text content from the often-overwhelming amount of information. To solve this problem, most studies have concentrated on using text-related features in supervised learning models to classify text contents. This article proposes an assumption that the geographic attributes of VGI can be integrated into the model as features for enhancing the model's performance. To evaluate this assumption, the authors developed a case study based on VGI collected from two flooding events in Brisbane. They validated the accuracy of associated geographic coordinates and defined the geographic features relevant to the flood phenomenon. From their experiments, model based on this integrated method can have better performance in comparison with the model trained from the text-related features. The results suggest great potential for using the integrated method to harvest useful VGI for the needs of disaster management.

scholarly journals Developing a Workflow to Identify Inconsistencies in Volunteered Geographic Information: A Phenological Case Study

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0140811 ◽  
Author(s):  
Hamed Mehdipoor ◽  
Raul Zurita-Milla ◽  
Alyssa Rosemartin ◽  
Katharine L. Gerst ◽  
Jake F. Weltzin
Keyword(s):  
Volunteered Geographic Information ◽  
Geographic Information
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