scholarly journals INTRA-URBAN MOVEMENT FLOW ESTIMATION USING LOCATION BASED SOCIAL NETWORKING DATA

2015 ◽  
Vol XL-1-W5 ◽  
pp. 781-785 ◽  
Author(s):  
A. Kheiri ◽  
F. Karimipour ◽  
M. Forghani
Keyword(s):  
New York ◽  
Social Networking ◽  
Travel Demand ◽  
Low Cost ◽  
Urban Experience ◽  
Flow Estimation ◽  
Social Network Data ◽  
Mobility Behavior ◽  
Data Source ◽  
Location Based Social Network

In recent years, there has been a rapid growth of location-based social networking services, such as Foursquare and Facebook, which have attracted an increasing number of users and greatly enriched their urban experience. Location-based social network data, as a new travel demand data source, seems to be an alternative or complement to survey data in the study of mobility behavior and activity analysis because of its relatively high access and low cost. In this paper, three OD estimation models have been utilized in order to investigate their relative performance when using Location-Based Social Networking (LBSN) data. For this, the Foursquare LBSN data was used to analyze the intra-urban movement behavioral patterns for the study area, Manhattan, the most densely populated of the five boroughs of New York city. The outputs of models are evaluated using real observations based on different criterions including distance distribution, destination travel constraints. The results demonstrate the promising potential of using LBSN data for urban travel demand analysis and monitoring.

News publishing across platforms: Gatekeeping for print, web, Facebook and Twitter

2018 ◽  
Vol 39 (4) ◽  
pp. 376-388 ◽  
Author(s):  
Danny Paskin
Keyword(s):  
New York ◽  
Social Networking ◽  
Quantitative Study ◽  
Social Networking Sites ◽  
New York Times ◽  
The New York Times ◽  
Similarities And Differences ◽  
Minimal Research

The minimal research on how news outlets are currently publishing across different platforms is limited in scope and has conflicting conclusions. Based on gatekeeping theory, this quantitative study expands that literature by comparing what The New York Times publishes in print, on its website and on social networking sites such as Facebook and Twitter. Results show both significant similarities and differences across platforms, and raise questions about the industry, and about news gatekeeping theory.

scholarly journals MASHUP SCHEME DESIGN OF MAP TILES USING LIGHTWEIGHT OPEN SOURCE WEBGIS PLATFORM

2018 ◽  
Vol XLII-3 ◽  
pp. 565-571
Author(s):  
T. Hu ◽  
J. Fan ◽  
H. He ◽  
L. Qin ◽  
G. Li
Keyword(s):  
Coordinate System ◽  
Low Cost ◽  
Image Data ◽  
Source Image ◽  
Scheme Design ◽  
Paper Cover ◽  
Data Source ◽  
Single Data Source ◽  
Single Data ◽  
Loading Scheme

To address the difficulty involved when using existing commercial Geographic Information System platforms to integrate multi-source image data fusion, this research proposes the loading of multi-source local tile data based on CesiumJS and examines the tile data organization mechanisms and spatial reference differences of the CesiumJS platform, as well as various tile data sources, such as Google maps, Map World, and Bing maps. Two types of tile data loading schemes have been designed for the mashup of tiles, the single data source loading scheme and the multi-data source loading scheme. The multi-sources of digital map tiles used in this paper cover two different but mainstream spatial references, the WGS84 coordinate system and the Web Mercator coordinate system. According to the experimental results, the single data source loading scheme and the multi-data source loading scheme with the same spatial coordinate system showed favorable visualization effects; however, the multi-data source loading scheme was prone to lead to tile image deformation when loading multi-source tile data with different spatial references. The resulting method provides a low cost and highly flexible solution for small and medium-scale GIS programs and has a certain potential for practical application values. The problem of deformation during the transition of different spatial references is an important topic for further research.

scholarly journals Working with federal government agencies to unlock administrative data

2018 ◽  
Vol 3 (5) ◽  
Author(s):  
Jennifer Auer
Keyword(s):  
Administrative Data ◽  
Source Coding ◽  
Low Cost ◽  
Census Bureau ◽  
Project Proposal ◽  
The Public ◽  
Econometric Methods ◽  
Technical Specifications ◽  
Data Source ◽  
Link Information

Federal administrative data is a low-cost and low-burden data source for evidence-based policy making. By linking information from different surveys, or over time, researchers can achieve the sample size and variation needed for advanced econometric methods. However, the personally identifying information (PII) needed to link information means that these data re not available to the public. One solution is to provide technical specifications to the requisite agency(s) to execute the research. This paper outlines the process and pitfalls of drafting specifications for an implementing party who knows more about the data than you do. Drawing on experience from working with the U.S. Census Bureau and knowledge gained from related literatures, such as open-source coding, this paper recommends the depth of description, order of data manipulation and analysis, and requested output to make these collaborative projects successful. A federal administrative data project proposal template is offered. The paper also advises on information that federal agencies can supply to facilitate the use of these important data sources.

Urban Formalism

2020 ◽  
Author(s):  
David Faflik
Keyword(s):  
Nineteenth Century ◽  
New York ◽  
Cultural History ◽  
Subjective Experience ◽  
The West ◽  
Urban Experience ◽  
Street Protest ◽  
History Of ◽  
New Form ◽  
The City

Urban Formalism radically reimagines what it meant to “read” a brave new urban world during the transformative middle decades of the nineteenth century. At a time when contemporaries in the twin capitals of modernity in the West, New York and Paris, were learning to make sense of unfamiliar surroundings, city peoples increasingly looked to the experiential patterns, or forms, from their everyday lives in an attempt to translate urban experience into something they could more easily comprehend. Urban Formalism interrogates both the risks and rewards of an interpretive practice that depended on the mutual relation between urbanism and formalism, at a moment when the subjective experience of the city had reached unprecedented levels of complexity. What did it mean to read a city sidewalk as if it were a literary form, like a poem? On what basis might the material form of a burning block of buildings be received as a pleasurable spectacle? How closely aligned were the ideology and choreography of the political form of a revolutionary street protest? And what were the implications of conceiving of the city’s exciting dynamism in the static visual form of a photographic composition? These are the questions that Urban Formalism asks and begins to answer, with the aim of proposing a revisionist semantics of the city. This book not only provides an original cultural history of forms. It posits a new form of urban history, comprised of the representative rituals of interpretation that have helped give meaningful shape to metropolitan life.

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