VafusQ: A methodology to build visual analysis applications with data quality features

2018 ◽  
Vol 18 (4) ◽  
pp. 384-404
Author(s):  
Jhon Alejandro Triana ◽  
Dirk Zeckzer ◽  
Hans Hagen ◽  
Jose Tiberio Hernandez

The use of interactive applications to support the decision-making process is more common every day. However, a huge amount of data is required in order to make more informed decisions. Fortunately, with the arrival of new technologies there are many data sources available. This requirement of data causes heterogeneity and data quality problems. A set of data quality problems are reduced in the preprocessing stage. However, many data quality issues persist after the preprocessing stage. For this reason, we proposed a methodology to take the data quality problems, to represent them and simultaneously support the analysis process. In addition, an application is developed as a use case of the methodology by analyzing the public transport system in Bogotá. Furthermore, a case study is performed to test the usefulness of the developed application. As a result, the methodology made possible the development of interactive visualizations that constitute an application that is useful to achieve the analysis tasks by including data quality features.

2013 ◽  
Vol 723 ◽  
pp. 968-975
Author(s):  
Hui Hua Yang

Public bikes rental system is an innovative scheme of rental bicycles in urban areas and can be seen as part of the public transport system. This study investigates the users of Taipei YouBike rental system, analysis their intention and behaviors, pre-expectation and actual experience on satisfaction. The result indicates that the users were mostly from long term annual fee commuters. The result also reveals distinct discrepancies between pre-expectation and actual experience, especially in distributes of safety routes and environments and clear indication of signs on bike routes. The findings can be used for Taipei City to improve the urban bicycle program and make more effort to develop safety cycling infrastructures and amenities.


1998 ◽  
Vol 1623 (1) ◽  
pp. 155-164 ◽  
Author(s):  
P. G. Brandl ◽  
K. W. Axhausen

The public transport system of Karlsruhe, Germany, in particular its innovative services on jointly used heavy rail lines, has received substantial attention throughout the last 2 decades. The discussion of the system and of its development was rather limited in the past, mostly highlighting technical aspects. An overview is provided of the development, including the urban development of the region, and of the funding system. The ridership and financial development of the operator is documented in detail. Case studies focus on the integration of the system development in the general political process of the region and demonstrate the limitations of the operator under its current ownership structures.


2021 ◽  
Author(s):  
◽  
Natalie Liverant

<p>Tweet Carefully, Museums presents an in-depth case study of audiences and a museum using social media in the current Web 2.0 age. It explores online protest and controversy over an event held at the Museum of Fine Arts, Boston (MFA) in 2015. This dissertation addresses a current gap in the literature centred on public use of social media as a platform to engage in museum-centred debate and discussion. At the moment, literature discussing new technologies in museums focuses heavily on an institution-to-audiences model. While this is indeed useful information, there is another aspect of digital media that has been largely neglected. In their case study, Gronemann et al. observed that overall, museums distanced themselves from discursive co-construction in their Facebook posts. The lack of engagement with audience can have adverse effects as social media grows in its popularity to mobilise the public in the name of social justice. “Western” museums, many of which have a history of fostering colonial narratives, can also be perceived as authoritative institutions. Museums need to engage more conscientiously with their online audiences. Unconsidered or insensitive engagement over social media may have adverse effects on institutions.  Kimono Wednesdays was an event where the public was invited to try on kimono in Gallery 255 at the MFA. The MFA advertised the event on a few social media platforms. On Facebook, the advertisement drew the harshest criticisms from a section of the Asian-American community. The sensational attention on Facebook grew quickly into physical protest inside Gallery 255. This case study analyses a sample of the dialogic posts, comments, and replies left on Facebook during the protests. It also analyses a symposium organised by the MFA, Kimono Wednesdays: A Conversation, where a panel made up of academics, museum staff, and a protester discussed the various concepts and perceptions of the museum’s controversial advertising and event.  This case study demonstrates that social media is a double-edged sword for museums, as it is a useful tool, but presents uncomfortable challenges. The key findings from this study show how content on the internet can be misinterpreted and how implicit bias can occur from any institution. As museums embrace Web 2.0 applications, they too must become more aware of their online presence and set in place methods of dialogic co-construction so as to better understand and communicate with the diversifying cultures that surround them.</p>


2013 ◽  
Vol 41 (3) ◽  
Author(s):  
Yael de Haan ◽  
Jo Bardoel

Ten years after Pim Fortuyn: criticism and accountability at Dutch newsrooms Ten years after Pim Fortuyn: criticism and accountability at Dutch newsrooms Pressures from politicians and the public have led to greater demands for media accountability. Moreover, structural shifts such as media concentration, increasing competition and the advent of new technologies have obliged media to strengthen the relationship with their reader, viewer and listener and to be more responsive to them. This article shows the results of a multiple case-study at three leading newsrooms in the Netherlands on how they cope with criticism on their performance and increasing pressures for accountability and responsiveness. It shows that new accountability policies and instruments were introduced, mainly at the initiative of editors-in-chief, while journalists in the newsroom showed more reluctance.


2021 ◽  
Author(s):  
◽  
Natalie Liverant

<p>Tweet Carefully, Museums presents an in-depth case study of audiences and a museum using social media in the current Web 2.0 age. It explores online protest and controversy over an event held at the Museum of Fine Arts, Boston (MFA) in 2015. This dissertation addresses a current gap in the literature centred on public use of social media as a platform to engage in museum-centred debate and discussion. At the moment, literature discussing new technologies in museums focuses heavily on an institution-to-audiences model. While this is indeed useful information, there is another aspect of digital media that has been largely neglected. In their case study, Gronemann et al. observed that overall, museums distanced themselves from discursive co-construction in their Facebook posts. The lack of engagement with audience can have adverse effects as social media grows in its popularity to mobilise the public in the name of social justice. “Western” museums, many of which have a history of fostering colonial narratives, can also be perceived as authoritative institutions. Museums need to engage more conscientiously with their online audiences. Unconsidered or insensitive engagement over social media may have adverse effects on institutions.  Kimono Wednesdays was an event where the public was invited to try on kimono in Gallery 255 at the MFA. The MFA advertised the event on a few social media platforms. On Facebook, the advertisement drew the harshest criticisms from a section of the Asian-American community. The sensational attention on Facebook grew quickly into physical protest inside Gallery 255. This case study analyses a sample of the dialogic posts, comments, and replies left on Facebook during the protests. It also analyses a symposium organised by the MFA, Kimono Wednesdays: A Conversation, where a panel made up of academics, museum staff, and a protester discussed the various concepts and perceptions of the museum’s controversial advertising and event.  This case study demonstrates that social media is a double-edged sword for museums, as it is a useful tool, but presents uncomfortable challenges. The key findings from this study show how content on the internet can be misinterpreted and how implicit bias can occur from any institution. As museums embrace Web 2.0 applications, they too must become more aware of their online presence and set in place methods of dialogic co-construction so as to better understand and communicate with the diversifying cultures that surround them.</p>


Author(s):  
Saroj Baral ◽  
Prem Nath Bastola

This research presents studies on a segment of highway to determine the quantitative factors that inuence transit services. Travel time and delay study is one of the method to determine quantitative factors. Tour time is described as the average period of time required to journey from one region to some other. Total departure time consists of gadgets which include total working time, places and general delay time. The examine section was done in Prithvi chowk to Tal chowk of Prithvi Highway which is turned to be 12.5 km long. Additionally, it has been found that the principle variables affecting travel time are: postpone time because of forestall selecting and choosing up passengers, bus model and bus size.32 trips public transport carrier and a 10 trips non-public automobile journey have been held during peak hours. Models are developed the use of SPSS software to become aware of the relationship between the causes of delays and the overall-time delays. Travel time and learning delays can help reduce the number of private vehicles operating and increase the number of public vehicles in order to reduce congestion and improve the e efficiency of the public transport system. It turned into determined that there was a full-size distinction in tour time among the use of the public transit services and the car.


2018 ◽  
Vol 16 (7) ◽  
Author(s):  
Noor Ashikin Abd Rahman ◽  
Yusfida Ayu Abdullah ◽  
Na'asah Nasrudin ◽  
Zaharah Mohd Yusoff

This study has a special interest in urban public transportation institutional framework in the Klang Valley, Malaysia. The notions for the topic were developed from issues regarding institutional framework in delivering urban public transportation. Although the current urban public transport in Klang Valley has improved, there are still issues concerning the institutional framework. To date, there is no single regulator or agency with the express and overriding responsibilities for strategic management of the public transport system in KlangValley. The purpose of this study is therefore to assess the current urban public transportation institutional and governance framework especially towards urban mobility. To achieve this, the study employs the content analysis and case study method, using the purposive sampling approach for expert interviews in gaining the data from participants of related agencies. It examines the importance of public transportation frameworks and present status of current transport development, as well as the roles of urban transportation agencies involved in delivering urban public transport. Results demonstrated that urban public transportation is delivered through multiple agencies with separate roles, not counting the inconsistency of various policies. Hence, the expectation of this study is to suggest practical approaches to improve the current institutional framework of urban public transportation.


2017 ◽  
Vol 18 (9) ◽  
pp. 16-19 ◽  
Author(s):  
Adam Molecki

There have been made many steps In Poland for about a year to noticeably increase the number ofelectric vehicles In traffic. Undoubtedly, this is a positive direction of change. The government's electromobility support plan is focused on the development of new technologies. For the traffic, in the short term, it can improve the quality of life especiaiły in cities. In the long period, it should lead to Iower prices for electric vehicles, and conseguently to maintain the trend of elimination of vehicles with internal combustion engines. At the same time, attention should be paid to several aspects that seem to be very debatable - the return to the promotion of individual transport, and what is even worse - the possible depreciation of the public transport system.


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