Using Temporal Versioning and Integrity Constraints for Updating Geographic Databases and Maintaining Their Consistency

2015 ◽  
Vol 26 (1) ◽  
pp. 30-59 ◽  
Author(s):  
Wassim Jaziri ◽  
Najla Sassi ◽  
Dhouha Damak

The use of geographic data has become a widespread concern, mainly within applications related to spatial planning and spatial decision-making. Therefore, changing environments require databases adaptable to changes that occur over time. Thus, supporting geographic information evolution is essential and extremely important within changing environments. The evolution is expressed in the geographic database by series of update operations that should maintain its consistency. This paper proposes an approach for updating geographic databases, based on update operators and algorithms of constraints integrity checking. Temporal versioning is used to keep the track of changes. Every version presents the state of the geographic database at a given time. Algorithms of constraints integrity checking allow maintaining the database consistency upon its update. To implement our approach and assist users in the evolution process, the GeoVersioning tool is developed and tested on a sample geographic database.

2016 ◽  
pp. 1137-1167
Author(s):  
Wassim Jaziri ◽  
Najla Sassi ◽  
Dhouha Damak

The use of geographic data has become a widespread concern, mainly within applications related to spatial planning and spatial decision-making. Therefore, changing environments require databases adaptable to changes that occur over time. Thus, supporting geographic information evolution is essential and extremely important within changing environments. The evolution is expressed in the geographic database by series of update operations that should maintain its consistency. This paper proposes an approach for updating geographic databases, based on update operators and algorithms of constraints integrity checking. Temporal versioning is used to keep the track of changes. Every version presents the state of the geographic database at a given time. Algorithms of constraints integrity checking allow maintaining the database consistency upon its update. To implement our approach and assist users in the evolution process, the GeoVersioning tool is developed and tested on a sample geographic database.


Author(s):  
Michele Campagna ◽  
Roberta Floris ◽  
Pierangelo Massa ◽  
Sara Mura

Since last decade, advances in the Information and Communication Technology (ICT) are increasingly enabling the voluntary sharing of user generated contents. Among different emerging digital resources, georeferenced multimedia data publicly shared through social media platforms, or Social Media Geographic Information is starting to stand out in quantity and value as data resource. In spatial planning, where the majority of information required to support analysis, design, and decision-making is inherently spatial in nature, SMGI may foster notable innovations in methodologies and practices, allowing the integration of both experiential and professional knowledge on places, events and ambient. However, this hypothesis should be carefully tested. With the above premises, this chapter more specifically concerns the concept of Social Media Geographic Information, arguing that it may represent an unprecedented resource for expressing pluralism in such domains as spatial planning where it may convey the community collective preferences contributing to enrich knowledge for decision-making.


2020 ◽  
Vol 50 (50) ◽  
pp. 55-72
Author(s):  
Maria Bednarek-Szczepańska

AbstractThe article concerns the legal dimension of local communities’ participation in selected aspects of shaping space in Poland. The results of the review of legal regulations are presented, including interpretations of regulations made by other authors. Examples taken from previous research were used to show the functioning of these regulations in practice and their consequences. The aim of the article is to assess the legal conditions for the participation of local communities in spatial planning, planning of protected areas and location of investments in Poland, in relation to selected theoretical concepts, as well as to assess the consequences of these conditions. In the legal dimension, the participation of the local community in shaping space is symbolic, in the terminology of the Arnstein ladder. The dominant model is a non-binding opinion on ready-made projects and plans, instead of collaboration in their creation.


2017 ◽  
Author(s):  
Wesley Flannery ◽  
Noel Healy ◽  
Marcos Luna

Marine Spatial Planning (MSP) offers the possibility of democratising management of the seas. MSP is, however, increasingly implemented as a form of post-political planning, dominated by the logic of neoliberalism, and a belief in the capacity of managerial-technological apparatuses to address complex socio-political problems, with little attention paid to issues of power and inequality. There is growing concern that MSP is not facilitating a paradigm shift towards publicly engaged marine management, and that it may simply repackage power dynamics in the rhetoric of participation to legitimise the agendas of dominant actors. This raises questions about the legitimacy and inclusivity of participatory MSP. Research on stakeholder engagement within MSP has predominately focused on assessing experiences of active MSP participants and has not evaluated the democratic or inclusive nature of these processes. Adopting the Northeast Ocean Planning initiative in the US as a case study, this paper provides the first study of exclusion and non-participation of stakeholders in an MSP process. Three major issues are found to have had an impact on exclusion and non-participation: poor communication and a perception that the process was deliberately exclusionary; issues arising from fragmented governance, territorialisation and scale; and lack of specificity regarding benefits or losses that might accrue from the process. To be effective, participatory MSP practice must: develop mechanisms that recognise the complexity of socio-spatial relationships in the marine environment; facilitate participation in meaningful spatial decision-making, rather than in post-ideological, objective-setting processes; and create space for debate about the very purpose of MSP processes.


Author(s):  
Michele Campagna ◽  
Roberta Floris ◽  
Pierangelo Massa ◽  
Sara Mura

Since last decade, advances in the Information and Communication Technology (ICT) are increasingly enabling the voluntary sharing of user generated contents. Among different emerging digital resources, georeferenced multimedia data publicly shared through social media platforms, or Social Media Geographic Information is starting to stand out in quantity and value as data resource. In spatial planning, where the majority of information required to support analysis, design, and decision-making is inherently spatial in nature, SMGI may foster notable innovations in methodologies and practices, allowing the integration of both experiential and professional knowledge on places, events and ambient. However, this hypothesis should be carefully tested. With the above premises, this chapter more specifically concerns the concept of Social Media Geographic Information, arguing that it may represent an unprecedented resource for expressing pluralism in such domains as spatial planning where it may convey the community collective preferences contributing to enrich knowledge for decision-making.


2019 ◽  
pp. 751-774
Author(s):  
Michele Campagna ◽  
Roberta Floris ◽  
Pierangelo Massa ◽  
Sara Mura

Since last decade, advances in the Information and Communication Technology (ICT) are increasingly enabling the voluntary sharing of user generated contents. Among different emerging digital resources, georeferenced multimedia data publicly shared through social media platforms, or Social Media Geographic Information is starting to stand out in quantity and value as data resource. In spatial planning, where the majority of information required to support analysis, design, and decision-making is inherently spatial in nature, SMGI may foster notable innovations in methodologies and practices, allowing the integration of both experiential and professional knowledge on places, events and ambient. However, this hypothesis should be carefully tested. With the above premises, this chapter more specifically concerns the concept of Social Media Geographic Information, arguing that it may represent an unprecedented resource for expressing pluralism in such domains as spatial planning where it may convey the community collective preferences contributing to enrich knowledge for decision-making.


2020 ◽  
Author(s):  
Seng Bum Michael Yoo ◽  
Benjamin Hayden ◽  
John Pearson

Humans and other animals evolved to make decisions that extend over time with continuous and ever-changing options. Nonetheless, the academic study of decision-making is mostly limited to the simple case of choice between two options. Here we advocate that the study of choice should expand to include continuous decisions. Continuous decisions, by our definition, involve a continuum of possible responses and take place over an extended period of time during which the response is continuously subject to modification. In most continuous decisions, the range of options can fluctuate and is affected by recent responses, making consideration of reciprocal feedback between choices and the environment essential. The study of continuous decisions raises new questions, such as how abstract processes of valuation and comparison are co-implemented with action planning and execution, how we simulate the large number of possible futures our choices lead to, and how our brains employ hierarchical structure to make choices more efficiently. While microeconomic theory has proven invaluable for discrete decisions, we propose that engineering control theory may serve as a better foundation for continuous ones. And while the concept of value has proven foundational for discrete decisions, goal states and policies may prove more useful for continuous ones.


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