5,757 research outputs found

    A knowledge discovery approach to urban analysis

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    Enhancing our knowledge of the complexities of cities in order to empower ourselves to make more informed decisions has always been a challenge for urban research. Recent developments in large-scale computing, together with the new techniques and automated tools for data collection and analysis are opening up promising opportunities for addressing this problem. The main motivation that served as the driving force behind this research is how these developments may contribute to urban data analysis. On this basis, the thesis focuses on urban data analysis in order to search for findings that can enhance our knowledge of urban environments, using the generic process of knowledge discovery using data mining. A knowledge discovery process based on data mining is a fully automated or semi-automated process which involves the application of computational tools and techniques to explore the “previously unknown, and potentially useful information” (Witten & Frank, 2005) hidden in large and often complex and multi-dimensional databases. This information can be obtained in the form of correlations amongst variables, data groupings (classes and clusters) or more complex hypotheses (probabilistic rules of co-occurrence, performance vectors of prediction models etc.). This research targets researchers and practitioners working in the field of urban studies who are interested in quantitative/ computational approaches to urban data analysis and specifically aims to engage the interest of architects, urban designers and planners who do not have a background in statistics or in using data mining methods in their work. Accordingly, the overall aim of the thesis is the development of a knowledge discovery approach to urban analysis; a domain-specific adaptation of the generic process of knowledge discovery using data mining enabling the analyst to discover ‘relational urban knowledge’. ‘Relational urban knowledge’ is a term employed in this thesis to refer to the potentially ‘useful’ and/or ‘valuable’ information patterns and relationships that can be discovered in urban databases by applying data mining algorithms. A knowledge discovery approach to urban analysis through data mining can help us to understand site-specific characteristics of urban environments in a more profound and useful way. On a more specific level, the thesis aims towards ‘knowledge discovery’ in traditional thematic maps published in 2008 by the Istanbul Metropolitan Municipality as a basis of the Master Plan for the Beyoğlu Preservation Area. These thematic maps, which represent urban components, namely buildings, streets, neighbourhoods and their various attributes such as floor space use of the buildings, land price, population density or historical importance, do not really extend our knowledge of Beyoğlu Preservation Area beyond documenting its current state and do not contribute to the interventions presented in the master plan. However it is likely that ‘useful’ and ‘valuable’ information patterns discoverable using data mining algorithms are hidden in them. In accordance with the stated aims, three research questions of the thesis concerns (1) the development of a general process model to adapt the generic process of knowledge discovery using data mining for urban data analysis, (2) the investigation of information patterns and relationships that can be extracted from the traditional thematic maps of the Beyoğlu Preservation Area by further developing and implementing this model and (3) the investigation of how could this ‘relational urban knowledge’ support architects, urban designers or urban planners whilst developing intervention proposals for urban regeneration. A Knowledge Discovery Process Model (KDPM) for urban analysis was developed, as an answer to the the first research question. The KDPM for urban analysis is a domain-specific adaptation of the widely accepted process of knowledge discovery in databases defined by Fayyad, Piatetsky-Shapiro, and Smyth (1996b). The model describes a semi-automated process of database formulation, analysis and evaluation for extracting information patterns and relationships from raw data by combining both GIS and data mining functionalities in a complementary way. The KDPM for urban analysis suggests that GIS functionalities can be used to formulate a database, and GIS and data mining can complement each other in analyzing the database and evaluating the outcomes. The model illustrates that the output of a GIS platform can become the input for a data mining platform and vice versa, resulting in an interlinked analytical process which allows for a more sophisticated analysis of urban data. To investigate the second and third research questions, firstly the KDPM for urban analysis was further developed to construct a GIS database of the Beyoğlu Preservation Area from the thematic maps. Then, three implementations were performed using this GIS database; the Beyoğlu Preservation Area Building Features Database consisting of multiple features attributed to the buildings. In Implementation (1), the KDPM for urban analysis was used to investigate a variety of patterns and relationships that can be extracted from the database using three different data mining methods. In Implementations (2) and (3), the KDPM for urban analysis was implemented to test how the knowledge discovery approach through data mining proposed in this thesis can assist in developing draft plans for the regeneration of a run-down neighbourhood in the Beyoğlu Preservation Area (Tarlabaşı). In Implementation (2), the KDPM for urban analysis is implemented in combination with an evolutionary process to apply a regeneration approach developed by the author; a computational process which generates draft plans for ground floor use, user-profile and tenure-type allocation was developed. In Implementation (3), students applied the KDPM for urban analysis during the course of an international workshop. The model enabled them to explore site-specific particularities of Tarlabaşı that would support their urban intervention proposals. Among the outputs of the thesis three of them are considered as utilizable outputs that distinguish this thesis from previous studies: The KDPM for urban analysis. Although there have been other studies which make use of data mining methods and techniques combined with GIS technology, to the best of our knowledge no previous research has implemented a process model to depict this process and used the model to extract ‘knowledge’ from traditional thematic maps. Researchers and practitioners can re-use this process model to analyze other urban environments. The KDPM for urban analysis is, therefore, one of the main utilizable outputs of the thesis and an important scientific contribution of this study. The Beyoğlu Preservation Area Building Features Database. A large and quite comprehensive GIS database which consists of 45 spatial and non-spatial features attributed to the 11,984 buildings located in the Beyoğlu Preservation Area was constructed. This database is one of the original features of this study. To the best of our knowledge, there are no other examples of applications of data mining using such a comprehensive GIS database, constructed from a range of actual micro-scale data representing such a variety of features attributed to the buildings. This database can be re-used by analysts interested in studying the Beyoğlu Preservation Area. The Beyoğlu Preservation Area Building Features Database is therefore one of the main utilizable outputs of the thesis and represents a scientific contribution to the research material on the Beyoğlu Preservation Area. A computational process which generates draft plans for ground floor use, user-profile and tenure-type allocation, using GIS and data mining functionalities with evolutionary computation. This output of the thesis was generated by Implementation (2), which aimed to investigate Research Question (3). The overall process involved the successive application of Naïve Bayes Classification, Association Rule Analysis and an Evolutionary Algorithm to a subset of the Beyoğlu Preservation Area Building Features Database representing the Tarlabaşı neighbourhood. Briefly, the findings of the data mining analysis were used to formulate a set of rules for assigning ground floor use information to the buildings. These rules were then used for fitness measurements of an Evolutionary Algorithm, together with other fitness measurements for assigning user-profile and tenure-type information (defined by the author according to the regeneration approach developed by the author). As a result, the algorithm transformed the existing allocation of the ground floor use in the buildings located in Tarlabaşı in accordance with the given rules and assigned user-profile and tenure type information for each building. This computational process demonstrated one way to use the data mining analysis findings in developing intervention proposals for urban regeneration. A similar computational process can be implemented in other urban contexts by researchers and practitioners. To the best of our knowledge, no prior research has used data mining analysis findings for fitness measurements of an Evolutionary Algorithm in order to produce draft plans for ground floor use, user-profile and tenure-type allocation. This is, therefore, the most original scientific contribution and utilizable output of the thesis. As a result of the research, on the basis of the data that is available in the thematic maps of the Beyoğlu Preservation Area, the potential of a knowledge discovery approach to urban analysis in revealing the relationships between various components of urban environments and their various attributes is demonstrated. It is also demonstrated that these relationships can reveal site-specific characteristics of urban environments and if found ‘valuable’ by the the targeted researchers and practitioners, these can lead to the development of more informed intervention proposals. Thereby the knowledge discovery approach to urban analysis developed in this thesis may help to improve the quality of urban intervention proposals and consequently the quality of built environments. On the other hand, the implementations carried out in the thesis also exposed the major limitation of the knowledge discovery approach to urban analysis through data mining, which is the fact that the findings discoverable by this approach are limited by the relevant data that is collectable and accessible

    Urban land-use planning using Geographical Information System and Analytical Hierarchy Process : case study Dhaka city

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    Urban land-use planning, which is a useful tool for the sustainable development of a city, is a complex decision making process. However, the modern GIS technologies facilitate such complex jobs in two ways – (i) GIS allows to work with large numbr of datasets, (ii) a number of methods, techniques or models could be embeded in GIS for land-use suitability analysis. Analytical Hierarchy Process (AHP), which is a kind of Multi-Criteria Decision Making (MCDM) technique, could be used for urban land-use planning with support of GIS technology. The aim of this thesis is preparing urban land-use planning using GIS and AHP, where the case study is Dhaka city. Dhaka, which is one of the fastest growing mega cities in the world and is the capital city of Bangladesh, is facing acute pressure of increasing population and unplanned urbanization, despite, a number of planning interventions have been taken for the planned development of the city. Recent Detail Area Planning (DAP) for Dhaka city was a cumbersome job but brought little benefits. DAP primarily prepared a land-use plan at city scale using GIS technology. Although huge resources and times were used to build the GIS database, it had promlems on (i) specifying data requirements, (ii) ensuring quality database (having topological rules, elimination of sliver polygons etc.) and (iii) using the database for spatial analysis in view to make better planning decision. In this connection, this thesis tried to conceptualize a model to build geographical database for urban land-use planning to address first two problems and applied GIS-based AHP technique for more sophisticated analysis (problem-iii). After literature review and selection of the study area (Group-E of DAP), the study set a number of criteria through sharing experts’ opinions. Based on those criteria the collected GIS data was transformed into the Geodatabase, where the geodatabase was conceptualized using Unified Modelling Language (UML). Five experts’ opinions were shared and further literature reviews were done for calculating Eigen Values using AHP methodological operations. The Eigen Values show the degree of priority of the criteria. Using Eigen Values, raster criterion maps were prepared from data available in the geodatabase. These criterion maps were overlaid to develop a composite map which was later classified to prepare suitability map. The research result shows that highly suitable area (13%) should be used for urban residential zone; moderately suitable area (35%) should be designated as mixed use zone; low suitable area (42%) should be reserved for agricultural use and open spaces; and not suitable area (10%) should be protected from any types of activities except agriculture. The research approached an urban land-use planning at a regional scale. The research results were also validated with Detail Area Plan of Dhaka Metropolitan Development Plan package in some order. Such validation concludes that Geographical Information System based Analytical Hierarchy Process can be applied successfully for preparing urban land-use planning at the regional level.Dhaka, the capital city of Bangladesh, is one of the fastest growing mega cities in the world. The city is facing acute pressure of increasing population and unplanned urbanization. Since 1959 a number of planning mechanisms have been formulated to promote planned growth of the city. But the city never experienced planned development. Current state of city development is quite unsustainable in nature. Urban land-use planning is a useful mechanism for sustainable city development. At the same time, land-use planning is a complex decision making process as such planning approach encompasses a number of socio-economic, physical and environmental criteria. Modern Geographical Information System (GIS) technology is very much helpful to incorporate these criteria and allow improved decision making process to prepare sustainable planning. Different Multi-Criteria Decision Making Models (MCDM), like, Analytical Hierarchy Model (AHP), can be applied fruitfully with the support of GIS to ease the complex decision making process of spatial planning, e.g., land-use planning. So, the aim of the thesis is to prepare urban land-use planning using GIS and AHP in context of Dhaka city. The thesis used both primary and secondary data. Experts’ opinions were shared to select the criteria for land-use planning and to fix the level of preferences of each criterion. The objective of selecting criteria and their level of preferences were to identify the suitability of areas for residential, industrial, commercial development and for protecting agricultural land. In this purpose, AHP technique was used so that the criteria can be selected easily in hierarchy order, the preferences level can be fixed with consistency and finally, the suitability of land-use can be ranked using GIS. The ranking of suitability allow deciding which land is more suitable for which category of development or for which development control. The research result shows that – The Highly Suitable areas are featured by vacant land, high elevation, no earthquake risk, and well connected with utilities and community services. Hard urban development can be promoted in these areas. These areas should be used for urban residential areas to facilitate new housing development. Moderately Suitable areas are featured by rural homestead, vacant land, existing residential use, high elevation, minimum earthquake risk, close to market places and connected with utilities and community services. These areas have been proposed as mixed-use area. This mixed-use area has potentiality of housing, commercial and industrial development. Low Suitable areas are predominated by agricultural and low lying flood flow zones. These areas should be free from major development. The lands here are close to fault lines. So, the places are also prone to earthquake risk. Here development controlling mechanism is earnest necessary. Agricultural lands should be protected as Bangladesh is facing acute shortages of agricultural land. However, as these areas fall within the Greater Dhaka Metropolitan Area jurisdiction, so, some parcels of land in these areas could be used for sports grounds, parks and other recreational open spaces as a requirement of city’s civic amenities. The Not Suitable areas are featured by agricultural uses, restricted areas (e.g. military camp) and high earthquake risk. Any type of use other than agriculture should be protected in these areas

    Green knowledge exchange Turkey-The Netherlands : priority issues identified for cooperation in the field of biodiversity protection and conservation : interviews with experts from Governmental and Non-Governmental Organisations based in Turkey and based in The Netherlands

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    As a consequence of its geographical location Turkey is very rich in biodiversity; its flora is richest, both in terms of overall plant diversity and level of endemism compared to Europe, North Africa, or countries in the Middle East. This report gives an overview of important biodiversity issues in Turkey and priorities for cooperation selected by Turkish and Dutch parties. The project aimed to facilitate the set up of a long-term cooperation between Turkey and The Netherlands in a structural ‘Green Knowledge Exchange’ between officials and experts of the two countries. Reports of interviews with (non)governmental organizations (Netherlands and Turkey) form the backbone of this publication. It also provides a SWOT analysis and comparison of the information obtained from Turkish side and the information provided by organisations based in The Netherlands

    ISPC Work Plan and Budget

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    Information and Communication Technologies and Migration

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    Surveying existing literature, this paper starts by identifying links between attainments in human development and the presence of ICTs. The research then looks at instances where ICTs affect the opportunity for migration and how they affect its outcomes. We will see how migrants are making use of ICTs and the importance that these technologies have come to occupy in their life. Attempting to illustrate both positive and negative implications of the roles of ICTs in human mobility, this paper surveys research that demonstrates how ICTs are used in both regular and irregular migration, in maintaining family relations, in sustaining cultural identities, and in supporting a family from abroad. We will see that ICTs have not replaced older forms of communication but that they have greatly increased the range of available options for communications. Throughout the text, this paper also includes the roles of governments and civil society in working to increase access and use of ICTs while also making mention of instances where they actively pursue the opposite. As we will see, the skills necessary for use of ICTs and the infrastructure necessary for their access can be found in all countries of the world, albeit in unequal distribution.information and communication technologies, diaspora, migration

    Civil Society Monitoring Report 2012

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    TUSEV published the first Civil Society Monitoring Report in 2011 in order to more closely observe and evaluate developments in the area of civil society. The purposes of this report are for civil society to be recognized, better understood and bring awareness to challenges faced, as well as portraying developments over the past ten years. We believe that the favorable assessment of the Civil Society Monitoring Report by the representatives of civil society and the various institutions in the international arena is a significant progress. The Civil Society Monitoring Report 2012 presents the developments and achievements in the area of civil society, as well as the shortcomings and difficulties observed in practice within the period of 2011-2012. Also, the report compares findings of this year with the previous year

    Proposal to incorporate sustainability into ICT engineering studies

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    Amb el suport de la UNESCO, l'Educació per al Desenvolupament Sostenible (EDS) és un concepte clau per formar millors professionals, adaptats a les limitacions de recursos i la situació actual del nostre planeta. La sostenibilitat és una de les competències transversals més importants que tot professional i enginyer ha d'adquirir durant la seva formació. Intentar continuar creant i desenvolupant indústria, ciència i tecnologia sense pensar en la sostenibilitat provocaria el col·lapse del nostre planeta en poc temps. En conseqüència, qualsevol professional ha de tenir un coneixement bàsic per poder identificar els impactes ambientals, socials i econòmics que té el seu camp i aquesta experiència s'ha d'incorporar als plans d'estudis universitaris actuals de la manera més eficient i eficaç. Aquest document es centra en quin mètode és el més adequat per a la introducció de coneixements sobre sostenibilitat al Grau en Enginyeria de Tecnologies i Serveis de Telecomunicació de la UPC. A més, compta amb una revisió de la legislació vigent i una anàlisi de projectes amb diferents abasts - marc local-universitari (projecte intern de la UPC per introduir l'EDS als títols oficials universitaris: Pla Pilot Competència Sostenibilitat i Compromís Social), estatal (EDINSOST, projecte coordinat per la UPC que cerca avançar en l'educació en innovació per dotar els futurs graduats de les habilitats necessàries per catalitzar el canvi cap a una societat més sostenible) i europeu (Unite!, xarxa europea d'universitats que volen transformar l'educació superior europea en una educació innovadora i multidisciplinària) - per donar una perspectiva àmplia dels esforços actuals per introduir l'EDS. A més, per comparar les actuals accions de la UPC en la introducció d'aquest nou camp, s'analitzen les universitats politècniques del territori espanyol a través d'entrevistes directes i la revisió de les guies de les assignatures.Con el apoyo de la UNESCO, la Educación para el Desarrollo Sostenible (EDS) es un concepto clave para formar mejores profesionales, adaptados a las limitaciones de recursos y la situación actual de nuestro planeta. La sostenibilidad es una de las competencias transversales más importantes que todo profesional e ingeniero debe adquirir durante su formación. Intentar seguir creando y desarrollando industria, ciencia y tecnología sin pensar en la sostenibilidad provocaría el colapso de nuestro planeta en poco tiempo. En consecuencia, todo profesional debe tener un conocimiento básico para poder identificar los impactos ambientales, sociales y económicos que tiene su campo y esta experiencia debe incorporarse a los planes de estudios universitarios actuales de la manera más eficiente y eficaz. Este documento se centra en que método es el más adecuado para la introducción de conocimientos sobre sostenibilidad en el Grado en Ingeniería de Tecnologías y Servicios de Telecomunicación de la UPC. Además, cuenta con una revisión de la legislación vigente y un análisis de proyectos con diferentes alcances - marco local-universitario (proyecto interno de la UPC para introducir la EDS en los títulos oficiales universitarios: “Pla Pilot Competència Sostenibilidad i Compromís Social”), estatal (EDINSOST, proyecto coordinado por la UPC que busca avanzar en la educación en innovación para dotar a los futuros graduados de las habilidades necesarias para catalizar el cambio hacia una sociedad más sostenible) y europeo (Unite!, red europea de universidades que quieren transformar la educación superior europea en una educación innovadora y multidisciplinaria) - para dar una perspectiva amplia de los esfuerzos actuales para introducir la EDS. Además, para comparar las acciones actuales de la UPC en la introducción de este nuevo campo, se analizan las universidades politécnicas del territorio español a través de entrevistas directas y la revisión de las guías de las asignaturas.Supported by UNESCO, Education for Sustainable Development (ESD) is a key concept to create better professionals, adapted to the limitations of resources and current situation of our world. Sustainability is one of the most important transversal skills that every professional and engineer must acquire during their formation. Trying to continue creating and developing industry, science and technology without considering sustainability would cause our planet to collapse in a short time. Consequently, every professional should have a basic knowledge to be able to identify the environmental, social and economic impacts that their field have and this expertise must be added to actual university studies curricula in the most efficient and effective way .This document is focused in which method is the most adequate to the introduction of sustainability knowledge in the Bachelor's degree in Telecommunications Technologies and Services Engineering of UPC. Moreover, it counts with a revision of current legislation and, an analysis of projects with different scopes - local-university framework (internal UPC’s project to introduce ESD in the university official titles: “Pla Pilot Competència Sostenibilidad i Compromís Social”), state (EDINSOST, project coordinated by the UPC that seeks to advance in innovation education to provide future graduates with the necessary skills to catalyse change towards a more sustainable society) and European (Unite!, European network of universities wanting to transform European higher education into an innovative, and multidisciplinary education) - in order to give a wide perspective of current efforts to introduce ESD. Furthermore, to compare current actions of UPC in the introduction of this new field, polytechnic universities of Spanish territory are analysed through direct interviews and course guidelines revision

    Can bank interaction during rating measurement of micro and very small enterprises ipso facto Determine the collapse of PD status?

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    This paper begins with an analysis of trends - over the period 2012-2018 - for total bank loans, non-performing loans, and the number of active, working enterprises. A review survey was done on national data from Italy with a comparison developed on a local subset from the Sardinia Region. Empirical evidence appears to support the hypothesis of the paper: can the rating class assigned by banks - using current IRB and A-IRB systems - to micro and very small enterprises, whose ability to replace financial resources using endogenous means is structurally impaired, ipso facto orient the results of performance in the same terms of PD assigned by the algorithm, thereby upending the principle of cause and effect? The thesis is developed through mathematical modeling that demonstrates the interaction of the measurement tool (the rating algorithm applied by banks) on the collapse of the loan status (default, performing, or some intermediate point) of the assessed micro-entity. Emphasis is given, in conclusion, to the phenomenon using evidence of the intrinsically mutualistic link of the two populations of banks and (micro) enterprises provided by a system of differential equation
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