170,313 research outputs found
The catching up of European money markets: The degree vs. the speed of integration
Full text linkFinancial Markets;EMS;European Integration;430;210;420;Interest
Digital pen method
Full text linkOne innovation in cadastral data collection is in using satellite images and drawing boundaries in the field with land right holders as witness (Lemmen and Zevenbergen 2010). This chapter presents an evaluation of the use of a digital pen method as an example of a new unconventional approach in cadastral data acquisition. Conventional approaches, often of historical footing, are inadequate in many jurisdictions. For example, highly rigorous and accurate methodologies and procedures, practiced by registered or licensed surveyors, are characterized by long duration and delays in completing acquisition. These delays are represented by insufficient coverage of the registered land, and the required accuracy leaves much potential for errors. As these are not pro-poor approaches, alternatives to this mighty accuracy tradition in land administration are needed. Flexibility is needed in relation to the way of recordation, the type of spatial units used, the inclusion of customary and informal rights, the data acquisition methodologies, and in the accuracy of boundary delineation. It is less important to produce accurate maps. It is deemed more important to have a complete cadastral map and to know how accurate that map is (Lemmen and Zevenbergen 2010; Lemmen 2012). The hypothesis in this chapter is that the use of a digital pen method allows cadastral data acquisition can to be done in less time, with the same number of people, whilst preventing duplication of errors
The LADM Valuation Information Model based on INTERLIS
Full text linkThe geometric, legal, physical, economic, and environmental characteristics of property units are utilized in valuation activities. Property valuation registries and databases are supposed to record these characteristics in relation to property units that are subject to immovable property valuation. Moreover, the links between valuation registries and the other land administration registries such as cadastre, land registry, building and dwelling should be specified. Apart from procedural valuation standards, there is no internationally accepted data standard that defines the links and semantics of property valuation databases. The ISO 19152:2012 Land Administration Domain Model (LADM), as an international land administration standard focuses on legal requirements, but considers out of scope specifications of external information systems including valuation and taxation databases. A recently started joint activity under International Federation of Surveyor s (FIG) Commission 9 (Valuation and the Management of Real Estate) and FIG Commission 7 (Cadastre and Land Management) has developed an information model for the specification of valuation information maintained by public authorities especially for property taxation . This paper investigates the use of INTERLIS tools f or the technical implementation of the Valuation Information Model, which has been develop ed as a valuation extension of ISO 19152:2012 Land Administration Domain Model (LADM). INTERLIS is a Swiss standard that enables modelling and integration of geographic data sets. It provides a conceptual schema language that can b e used to specify a data model in a neutral system environment, similarly, class diagrams of th e Unified Modeling Language (UML). It is compatible with international standards like UML , XML and GML. INTERLIS also provide some tools for the implementation of conceptual models into technical models. The core LADM, a number of the ISO191xx base models and some LADM country profiles were already expressed in INTERLIS standard. This paper presents definition of classes, code lists and constraints of the LADM Valuation Information Model and its Turkish Country Profile i n INTERLIS. It also discusses possible advantageous of INTERLIS tools (UML editor, compile r, checker, validator and loader) such as system neutral data exchange format, compatibility with relevant international standards, reusable and extensible conceptual schema language, and automatic translation from the conceptual model to physical model
A Database Implementation of LADM Valuation Information Model in Turkish Case Study
Full text linkA recently started joint activity under International Federation of Surveyors (FIG) Commission 9 (Valuation and the Management of Real Estate) and FIG Commission 7 (Cadastre and Land Management) has started development of an information model for the specification of valuation information maintained b y public authorities especially for property taxation. In this initiative, ISO 19152:2012 Land Administration Domain Model (LADM) has been taken as the basis for the development of a Valuation Information Model. A first version of the LADM Valuation Information Model was created based on standards, literature survey and data gained from questionnaires replied by the national delegates of FIG Commission 9 and FIG Commission 7. The conceptual model was represented through class diagrams of the Unified Modeling Language (UML). This paper describes the development of a prototype for the implementation of the conceptual model in terms of a Turkish case study. The main ai m of this paper is to assess and improve the proposed conceptual LADM Valuation Information Model. In the development part, the classes, attributes, constraints, cardinalities and relations between classes of the conceptual model were converted to technical (physical) model, namely the Oracle Spatial 11g database schema has been generated from the conceptual model definitions. The conceptual schema definitions were implemented into the database, whi ch next was loaded with sample datasets related to property valuation and taxation in Turkey. The sample data includes valuation units that are the subjects of recurrently levied property taxes in Turkey, such as unimproved urban parcel and parcel and improvements together as condominium property, valuation and taxation information of the valuation units in different years, and as well as geometries of valuation units. The technical model of LADM Valuation Information Model Turkish Country Profile has been tested in evaluation phase through SQL queries and visualization tools, respectively. In this phase, it is investigated that whether the both conceptual and technical models fulfill the needs of information management aspects of valuation activities for property taxation
Unconventional approaches to land administration:a point of view of land registrars and land surveyors
Full text linkLand administration ('the process of determining, recording, and disseminating information about ownership, value and use of land when implementing land management policies' according to UN Land Administration Guidelines 1996) facilitates -inter alia- land tenure security, the land market, land use planning and control, land taxation and management of natural resources. In textbooks usually two processes are determined for the initial establishment and maintenance of the system, namely the adjudication process and the cadastral boundary survey. This paper aims at identifying unconventional approaches from the point of view of land registrars and land surveyors, which might contribute to the development of appropriate land administration systems in countries that desire to use a land register and cadastre as a tool for the implementation of its land policy
Remarks and observations related to the further development of the core cadastral domain model
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Fit-For-Purpose Land Administration:Guiding Principles for Country Implementation
Full text linkThis publication is primarily designed to allow a range of stakeholders in developing countries to understand the overall Fit-For-Purpose approach and to recognize the benefits of adopting this approach. The Fit-for-Purpose solutions provide opportunities for land administration systems to deliver benefits, including secure tenure rights, to a wide range of stakeholders within a relatively short time and for relatively affordable costs in a flexible manner. It provides structured guidance on building the spatial, legal and institutional frameworks in support of designing country-specific strategies for implementing FFP land administration. It contains the analysis and operational advisory guidelines to implement the approach. Authors of the Guide are Stig Enemark, Robin McLaren and Christiaan Lemmen and it is published by UN-Habitat/GLTN and Dutch Kadaster
Towards a new working item proposal for Edition II of LADM
Full text linkThis paper presents the first and incomplete draft text for the revision of IS 19152:2012 ‘Geographic information — Land Administration Domai n Model (LADM)’ within ISO TC211 in the form of a New Working Item Proposal (N WIP). This ‘two-page NWIP’ text aims to describe the scope of proposed project to r evise, and also provides the purpose and justification behind this revision of LADM. The Int ernational Federation of Surveyors (FIG) also submitted to ISO the NWIP for the current vers ion of LADM (IS 19152:2012). As for the revision the ambition is now to go beyond just a co nceptual model by providing steps towards implementations (e.g. more specific profiles, techn ical model in various encodings, etc.), it is the intention that the Open Geospatial Consortium, Inc. (OGC) is heavily involved in the revision and that the result is a joint ISO/OGC sta ndard. For this purpose the recent draft OGC White Paper is added as Appendix 1 to this pape r to provide more detail background information. It is further noted that the complete NWIP for Edit ion II of LADM also ‘Preparatory work’ should be attached; e.g. a draft of the new version of the standard. In the case of the revised LADM standard of course this is based on the IS 191 52:2012, but will contain also contain collected materials from the LADM2017 and LADM2018 workshop
Kadaster wil snelle aanbieding van transparante data via het web : interview met C. Lemmen en P. van het Oosterom
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