Mehmet ALKAN | Yildiz Technical University (original) (raw)

Papers by Mehmet ALKAN

Geocarto International, 2023

Spatial plan decisions guide both the future use of the lands and many activities from protectio... more Spatial plan decisions guide both the future use of the lands and
many activities from protection to construction and permit. Due
to its functions, spatial plan decisions play a key role in land
administration. Spatial planning information for integrated land
administration systems (LASs) should be associated with land
registration systems. The Land Administration Domain Model
(LADM) standard offers components to enable this structure.
Integrating spatial plan data with LASs will provide standardization
for plan data and assurance of plan decisions. Although the
spatial planning mission differs across various administrative
regions, planning activities produce land use decisions, albeit in
different ways. The study aims to establish the common points in
planning activities and design a joint spatial planning system data
model using various countries’ spatial planning systems and international
standardization studies. The spatial plans in the model
that has been proposed are depicted as a system, not merely by
the rights, restrictions, and responsibilities (RRRs) that they establish
on the land. The results point out that spatial planning systems
have some similarities but also some limitations to support
conceptual model design. Based on joint data and relationships,
the proposed spatial planning system data model can be adapted
for different country practices. The study’s results are expected to
support the LADM second version development studies.

Elsevier, 2024

Ensuring the sustainability of cities and communities is closely linked to sharing the financial ... more Ensuring the sustainability of cities and communities is closely linked to sharing the financial burden and rent
among stakeholders arising from development. Administrations undertake Land Value Capture (LVC) to finance
infrastructure investments and implement urbanization policies by recapturing a portion (or all) of the increase
resulting from development. Through recurring and non-recurring instruments developed for this purpose,
support is provided to the urbanization burden in exchange for the value added by residents or developers. In
Türkiye, the efficiency of existing LVC instruments in capturing added value is subject to debate. This study
analyses political, economic, socio-cultural, and technological (PEST) factors to evaluate implications for
improving Türkiye’s LVC instruments from the perspective of their counterparts in European countries. The
selection of the countries examined was determined by the frequency of use of the relevant LVC instrument
compared to other instruments within the country. The study results suggest that restructuring Türkiye’s LVC
instruments based on the examined practices would reduce the financial burden of infrastructure and service
facilities on local administrations while potentially inducing changes in resident behaviour. Additionally, it indicates
the need for Turkish LVC instruments to be regulated regarding property valuation and technological
infrastructure development. The consistency of the potential outcomes of the practices considered in light of the
results and their alignment with sustainable development policies are discussed.

Transactions in GIS, 2024

Spatial planning plays a crucial role in shaping the future of urban development and land adminis... more Spatial planning plays a crucial role in shaping the future
of urban development and land administration. While
land registration information is necessary for spatial planning
processes, it is also probable that changes in land
registration data occur in line with spatial plan decisions.
Development of the Land Administration Domain Model
(LADM) Edition II It also aimed to extend its existing conceptual
model with spatial plan data, considering the close
connection between the two systems. The study aims to
design a conceptual model for Turkey's spatial planning
system within the LADM Turkey country profile context.
This article researches the capability of the proposed conceptual
model for representing spatial planning data with
instance-level
diagrams and the implementation opportunities
of a technical model. To demonstrate the functionality
of the proposed model, the zoning status certificate,
which contains spatial plan and land registration data and
is provided to inform about the legal conditions before development,
is chosen as the mission. The results show that
the LADM Turkey country profile extended with spatial
planning system data can represent spatial plan data and
be implemented in a technical model to support land administration
applications.

Survey Review, 2024

Spatial planning includes various decisions that guide the formulation of land policies, such as ... more Spatial planning includes various decisions that guide the formulation of land policies, such as
planned urbanisation, environment-nature-culture protection, and safe agriculture. Land
Administration Systems (LASs) should also include spatial planning decisions as they play a
role in facilitating the implementation of land policies. In this study, the Turkish spatial planning
system’s role in the land administration is discussed. The paper presents the necessity of
designing and standardising the spatial planning system as data model. This data model
design includes not only spatial plan decisions but also documents that guide spatial planning
and land development decisions caused by planning. Therefore, this study aims to present a
standardised model of the Turkish spatial planning system and the land use rights, restrictions
and responsibilities established by spatial plans. Designing spatial planning system information
as a conceptual data model within the Land Administration Domain Model is expected to
support land administration system-based improvements.

Transactions in GIS, 2024

Physical and cadastral data management practices for underground facilities are insufficient to r... more Physical and cadastral data management practices for underground
facilities are insufficient to represent underground
assets' Rights, Restrictions, and Responsibilities
(RRRs) and their relationships with the cadastre. For this
reason, developing a 3D integrated data (underground and
above-ground)
model may be an approach to an effective
land management system. This research aims to develop
a creative data model by integrating Turkish National
Geographic Information System (TUCBS-AY
in Turkish)
with international standards (Land Administration Domain
Model (LADM) and CityGML) as a holistic approach. The
requirements determined for underground facilities using
TUCBS-AY
were used. Since the data produced in Turkey
were modeled according to the CityGML 2.0 version, the
CityGML 2.0 UtilityNetwork version was used in the study
to be compatible with the existing Turkish cadastral system.
While some classes in the model are generalized, they
are expanded using LADM's classes for legal rights and
part information. In addition, the CityGML classes have
been expanded within the model so that parcels, buildings,
and independent sections are represented separately, thus
providing the opportunity to represent the underground
utilities associated with them, their RRRs, and ownership
situations. Requirements for the proposed model were determined based on Turkey's cadastral system and underground
data. The main purpose is to manage the legal and
physical relations of underground and surface objects at
the city scale, compatible with the current Turkish cadastral
system, with a holistic approach. The proposed integrated
conceptual data model shows how legal rights and
ownership of underground structures can be logically represented
with a 3D data model.

Habitat International, 2024

Spatial plans and strategies ensure that urbanization takes place according to predetermined scie... more Spatial plans and strategies ensure that urbanization takes place according to predetermined scientific and
technical criteria. Urbanization that takes place without taking into account these legal and technical bases lead
to the emergence of informal, risky and dysfunctional settlements. Over time, these settlements become
increasingly vulnerable due to their failure to meet social and technical requirements, making their sustainability
increasingly challenging, and inevitably becoming subjects of urban renewal activities. Google Earth Engine
(GEE) platform’s archive of satellite images provides temporal monitoring of urbanization on Earth for about 50
years and analysis of changes in the cloud environment. This study investigates whether the GEE platform can
use to detect the impact of the areas where settlement activities are carried out without a development plan in
the current urban transformation projects in Istanbul. Land use/cover maps classified with the Random Forest
algorithm correlate urbanization activities in urban renewal areas with the entry into force date of the spatial
plans that guide the settlement. The classification results evaluated in conjunction with statistical tests and
spatial plan decisions demonstrate that unplanned urbanization is a serious obstacle to the sustainability of
settlements. Additionally, the study results show the performance of the GEE platform in detecting the effects of
factors in the urbanization period. The GEE platform can serve as a facilitative tool for deriving lessons from
urbanization experiences to inform policymaking.

Geocarto International, 2022

This article discusses 3D cadastral objects registration with time attributes and implementation ... more This article discusses 3D cadastral objects registration with time attributes and implementation within the Turkish Land Administration Domain Model (LADM) framework. This research will discuss the practical pathway towards realizing LADM-based 3D cadastral objects registration and focuses on extending the representation of those cadastral objects to 4D (3D þ t) with time attributes in alignment with the jurisdictional settings in Turkey. The prototype development begins with data modelling. Also, the data was managed in an open-source PostgreSQL database. The developed prototype can answer all questions about cadastral objects, such as property, right, restrictions and responsibility (RRR) types, temporal queries and spatial source document and usage type of cadastral objects. It has been anticipated that this study may serve as a model for other national authorities with similar land management systems, particularly cadastral objects with time-qualification records, including the existing Spatial Data Infrastructure (SDI) initiative in Turkey.

The Application Domain Extension (ADE) 4D Cadastral Data Model and Its Application in Turkey, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Land

The 3D cadastre, one of the most fundamental components of the 3D LAS (Land Administration System... more The 3D cadastre, one of the most fundamental components of the 3D LAS (Land Administration System), aims to provide an integrated 3D view of legal (Right, Restrictions, and Responsibilities–RRR) and physical boundaries in multi-storey properties; therefore, to extend the flexible and modular basis of LADM, which best represents legal boundaries and RRRs, some integrated models using technical standards (e.g., CityGML, IFC, InfraGML) are developed to represent the full 3D cadastre. However, since most of the developed 3D integrated data models are designed at the conceptual level, there is a knowledge gap in logical data model relationships, which is the next processing step in the fully integrated 3D data model stage. The main argument of this study is an innovative ADE 4D Cadastral Data Model to represent 3D cadastral objects registration with time attributes using LADM and CityGML. The data management and organization are done in an open-source database for the Turkish cadastral s...

Sigma Journal of Engineering and Natural Sciences, Dec 1, 2018

WOS: 000454526700011In land administration, spatial data manegement plays the important role of d... more WOS: 000454526700011In land administration, spatial data manegement plays the important role of defining physical characteristics of land parcels in an accurate and discernible manner. A complementary part of spatial data infrastructure (SDI) is an effective information infrastructure that serves as the backbone of the land administration system. The paper provides a framework that supports adoption of spatial data modelling based on Land Administration Domain Model (LADM) for Turkish Land Administration System (TLAS). For this purpose, a spatial and non-spatial data model based on LADM is designed concerning the single space units subject to condominium in Turkey. The proposed data model is more comprehensive, capable of organising a wider range of spatial data, and should facilitate wider exchange of land information. The model is unique because it can support a very wide range of spatial units. Furthermore, the model was developed to help establish a national spatial data infrastructure LADM-based. To conclude, the developed model is a standardised model that could be used for local and international exchange of spatial and non-spatial data concerning land administration matters

Survey Review, 2021

In Turkey, during the realisation of the land registry and cadastre transactions, manually checki... more In Turkey, during the realisation of the land registry and cadastre transactions, manually checking the official documents exceeding 20 million annually causes some problems in document management and security. This study focuses on managing the official documents as online requested by the land registry and cadastre directorates from the other institutions during these transactions. Therefore, a general external data model based on the LADM has been proposed to manage requested documents during transactions. If web-based applications support the proposed model, access to documents will be faster and easier, and security risk will be reduced.

past or present cadastral systems are examined, it is seen that the cadastral systems have differ... more past or present cadastral systems are examined, it is seen that the cadastral systems have different purpose, content, scope and administrative structure in different countries. However, all of these systems are generally based on the same logical basis. This basis is the relationship arrangement between people and land through the rights of the cadastre on real property. Internationally, the demand for a widely accepted standardised domain model in land administration emerged in the early 2000s, partly as a result of Cadastre 2014. An effort to standardize cadastral systems started in 2002 by Lemmen and van Oosterom, who had the vision of the Core Cadastral Domain Model. Since then, the model has evolved to the international standard Land Administration Domain Model (ISO 19152). The LADM provides an abstract, conceptual model and is organized into three packages and one subpackage

... Wang R. and Zhang Y., 2003: Extraction of Urban Rural Network Using QuickBird Pan-Sharpened M... more ... Wang R. and Zhang Y., 2003: Extraction of Urban Rural Network Using QuickBird Pan-Sharpened Multispectral and Panchromatic Imagery by Performing Edge-Aided Post-Classification, ISPRS Joint Workshop on Spatial Temporal and Multi-Dimensional Data Modeling and ...

Survey Review, 2020

Cadastre in Turkey is executed as two-dimensional (2D) and parcel-based. The third dimension (3D)... more Cadastre in Turkey is executed as two-dimensional (2D) and parcel-based. The third dimension (3D) on land and real estate is shown in 2D on the map with permanent rights. The use of underground spaces cannot be registered. There are various problems in the registration and mapping of real estates that are under or above these excluded places. The research was motivated by some problems that have taken place in the Turkey 3D cadastre due to the inadequate spatial information systems. For this purpose, it is aimed to design a 3D cadastre country profile that takes into account the Turkish National Spatial Data Infrastructure (TUCBS in Turkish) land registry and cadastral data model and is compatible with the Land Administration Domain Model (LADM), which is defined within ISO 19152. In this study presents a detailed overview of the Turkish legal cadastre system and a proposal for realisation based on international standards.

Journal of Applied Remote Sensing, 2021

Abstract. For the estimation of a dense disparity map from a rectified space-borne stereo image p... more Abstract. For the estimation of a dense disparity map from a rectified space-borne stereo image pair and generation of the most qualified digital surface model (DSM), new image matching algorithms are being developed. Our study has two main goals of the DSM quality validation of Worldview-4 (WV-4), which offers the highest ground sampling distance (GSD) (30 cm) of civilian optical space-borne missions together with Worldview-3 (WV-3), and performance comparison of semiglobal matching (SGM) and least squares matching (LSM), two of the most preferred image matching algorithms for space-borne data. In the Istanbul study area with a rough topographic structure, 1 m gridded DSMs were derived from geometrically corrected WV-4 stereo image pairs. The qualities were estimated by well-rounded visual and statistical approaches based on standard deviation and normalized median absolute deviation. In model-to-model comparisons, a very high-resolution airborne laser scanning (ALS) DSM was utilized as the reference model. The results demonstrated that the WV-4 DSM derived by SGM has the standard deviation of ±0.51 m (1.7 GSD) in height in open areas, whereas the LSM DSM has ±1.46 m. In addition, the visual quality of SGM is much better than LSM through building description potential.

Together with the development of modern technology, a new communication media for accessing to th... more Together with the development of modern technology, a new communication media for accessing to the quality information has emerged. In order to access quality information faster and more practically, Web technology has been developed by Tim Berners-Lee. With this technology, Web users are able to access to the information in Web environment by entering web site URI (or URL) addresses, searching and following the related links. URIs with not only Web documents also possible to define the real world concepts. URI technology has been started with the identification of spatial objects from this property and has been investigated in this study can be accessed via the web positional information of the object. For this purpose, the spatial objects (plots) for INSPIRE URI specific to each model are defined by reference to a spatial objects and to access web resources that is associated with this definition URI QR (Quick Response) code technology is used. To flesh out the application on the ...

Nowadays Land Administration Domain Model (LADM) is a very important component for Cadastral Syst... more Nowadays Land Administration Domain Model (LADM) is a very important component for Cadastral Systems and e-government database framework all over the world. In that case, design and develop LADM for using the cadastral data specific issue for every country. When the past or present cadastral systems are examined, it is seen that the cadastral systems have different purpose, content, scope and administrative structure in different countries. However, all of these systems are generally based on the same logical basis. This basis is the relationship arrangement between people and land through the rights of the cadastre on real property. Internationally, the demand for a widely accepted standardised domain model in land administration emerged in the early 2000s, partly as a result of Cadastre 2014. An effort to standardise cadastral systems started in 2002 by Lemmen and van Oosterom, who had the vision of the Core Cadastral Domain Model. Since then, the model has evolved into the intern...

Geocarto International, 2023

Spatial plan decisions guide both the future use of the lands and many activities from protectio... more Spatial plan decisions guide both the future use of the lands and
many activities from protection to construction and permit. Due
to its functions, spatial plan decisions play a key role in land
administration. Spatial planning information for integrated land
administration systems (LASs) should be associated with land
registration systems. The Land Administration Domain Model
(LADM) standard offers components to enable this structure.
Integrating spatial plan data with LASs will provide standardization
for plan data and assurance of plan decisions. Although the
spatial planning mission differs across various administrative
regions, planning activities produce land use decisions, albeit in
different ways. The study aims to establish the common points in
planning activities and design a joint spatial planning system data
model using various countries’ spatial planning systems and international
standardization studies. The spatial plans in the model
that has been proposed are depicted as a system, not merely by
the rights, restrictions, and responsibilities (RRRs) that they establish
on the land. The results point out that spatial planning systems
have some similarities but also some limitations to support
conceptual model design. Based on joint data and relationships,
the proposed spatial planning system data model can be adapted
for different country practices. The study’s results are expected to
support the LADM second version development studies.

Elsevier, 2024

Ensuring the sustainability of cities and communities is closely linked to sharing the financial ... more Ensuring the sustainability of cities and communities is closely linked to sharing the financial burden and rent
among stakeholders arising from development. Administrations undertake Land Value Capture (LVC) to finance
infrastructure investments and implement urbanization policies by recapturing a portion (or all) of the increase
resulting from development. Through recurring and non-recurring instruments developed for this purpose,
support is provided to the urbanization burden in exchange for the value added by residents or developers. In
Türkiye, the efficiency of existing LVC instruments in capturing added value is subject to debate. This study
analyses political, economic, socio-cultural, and technological (PEST) factors to evaluate implications for
improving Türkiye’s LVC instruments from the perspective of their counterparts in European countries. The
selection of the countries examined was determined by the frequency of use of the relevant LVC instrument
compared to other instruments within the country. The study results suggest that restructuring Türkiye’s LVC
instruments based on the examined practices would reduce the financial burden of infrastructure and service
facilities on local administrations while potentially inducing changes in resident behaviour. Additionally, it indicates
the need for Turkish LVC instruments to be regulated regarding property valuation and technological
infrastructure development. The consistency of the potential outcomes of the practices considered in light of the
results and their alignment with sustainable development policies are discussed.

Transactions in GIS, 2024

Spatial planning plays a crucial role in shaping the future of urban development and land adminis... more Spatial planning plays a crucial role in shaping the future
of urban development and land administration. While
land registration information is necessary for spatial planning
processes, it is also probable that changes in land
registration data occur in line with spatial plan decisions.
Development of the Land Administration Domain Model
(LADM) Edition II It also aimed to extend its existing conceptual
model with spatial plan data, considering the close
connection between the two systems. The study aims to
design a conceptual model for Turkey's spatial planning
system within the LADM Turkey country profile context.
This article researches the capability of the proposed conceptual
model for representing spatial planning data with
instance-level
diagrams and the implementation opportunities
of a technical model. To demonstrate the functionality
of the proposed model, the zoning status certificate,
which contains spatial plan and land registration data and
is provided to inform about the legal conditions before development,
is chosen as the mission. The results show that
the LADM Turkey country profile extended with spatial
planning system data can represent spatial plan data and
be implemented in a technical model to support land administration
applications.

Survey Review, 2024

Spatial planning includes various decisions that guide the formulation of land policies, such as ... more Spatial planning includes various decisions that guide the formulation of land policies, such as
planned urbanisation, environment-nature-culture protection, and safe agriculture. Land
Administration Systems (LASs) should also include spatial planning decisions as they play a
role in facilitating the implementation of land policies. In this study, the Turkish spatial planning
system’s role in the land administration is discussed. The paper presents the necessity of
designing and standardising the spatial planning system as data model. This data model
design includes not only spatial plan decisions but also documents that guide spatial planning
and land development decisions caused by planning. Therefore, this study aims to present a
standardised model of the Turkish spatial planning system and the land use rights, restrictions
and responsibilities established by spatial plans. Designing spatial planning system information
as a conceptual data model within the Land Administration Domain Model is expected to
support land administration system-based improvements.

Transactions in GIS, 2024

Physical and cadastral data management practices for underground facilities are insufficient to r... more Physical and cadastral data management practices for underground
facilities are insufficient to represent underground
assets' Rights, Restrictions, and Responsibilities
(RRRs) and their relationships with the cadastre. For this
reason, developing a 3D integrated data (underground and
above-ground)
model may be an approach to an effective
land management system. This research aims to develop
a creative data model by integrating Turkish National
Geographic Information System (TUCBS-AY
in Turkish)
with international standards (Land Administration Domain
Model (LADM) and CityGML) as a holistic approach. The
requirements determined for underground facilities using
TUCBS-AY
were used. Since the data produced in Turkey
were modeled according to the CityGML 2.0 version, the
CityGML 2.0 UtilityNetwork version was used in the study
to be compatible with the existing Turkish cadastral system.
While some classes in the model are generalized, they
are expanded using LADM's classes for legal rights and
part information. In addition, the CityGML classes have
been expanded within the model so that parcels, buildings,
and independent sections are represented separately, thus
providing the opportunity to represent the underground
utilities associated with them, their RRRs, and ownership
situations. Requirements for the proposed model were determined based on Turkey's cadastral system and underground
data. The main purpose is to manage the legal and
physical relations of underground and surface objects at
the city scale, compatible with the current Turkish cadastral
system, with a holistic approach. The proposed integrated
conceptual data model shows how legal rights and
ownership of underground structures can be logically represented
with a 3D data model.

Habitat International, 2024

Spatial plans and strategies ensure that urbanization takes place according to predetermined scie... more Spatial plans and strategies ensure that urbanization takes place according to predetermined scientific and
technical criteria. Urbanization that takes place without taking into account these legal and technical bases lead
to the emergence of informal, risky and dysfunctional settlements. Over time, these settlements become
increasingly vulnerable due to their failure to meet social and technical requirements, making their sustainability
increasingly challenging, and inevitably becoming subjects of urban renewal activities. Google Earth Engine
(GEE) platform’s archive of satellite images provides temporal monitoring of urbanization on Earth for about 50
years and analysis of changes in the cloud environment. This study investigates whether the GEE platform can
use to detect the impact of the areas where settlement activities are carried out without a development plan in
the current urban transformation projects in Istanbul. Land use/cover maps classified with the Random Forest
algorithm correlate urbanization activities in urban renewal areas with the entry into force date of the spatial
plans that guide the settlement. The classification results evaluated in conjunction with statistical tests and
spatial plan decisions demonstrate that unplanned urbanization is a serious obstacle to the sustainability of
settlements. Additionally, the study results show the performance of the GEE platform in detecting the effects of
factors in the urbanization period. The GEE platform can serve as a facilitative tool for deriving lessons from
urbanization experiences to inform policymaking.

Geocarto International, 2022

This article discusses 3D cadastral objects registration with time attributes and implementation ... more This article discusses 3D cadastral objects registration with time attributes and implementation within the Turkish Land Administration Domain Model (LADM) framework. This research will discuss the practical pathway towards realizing LADM-based 3D cadastral objects registration and focuses on extending the representation of those cadastral objects to 4D (3D þ t) with time attributes in alignment with the jurisdictional settings in Turkey. The prototype development begins with data modelling. Also, the data was managed in an open-source PostgreSQL database. The developed prototype can answer all questions about cadastral objects, such as property, right, restrictions and responsibility (RRR) types, temporal queries and spatial source document and usage type of cadastral objects. It has been anticipated that this study may serve as a model for other national authorities with similar land management systems, particularly cadastral objects with time-qualification records, including the existing Spatial Data Infrastructure (SDI) initiative in Turkey.

The Application Domain Extension (ADE) 4D Cadastral Data Model and Its Application in Turkey, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Land

The 3D cadastre, one of the most fundamental components of the 3D LAS (Land Administration System... more The 3D cadastre, one of the most fundamental components of the 3D LAS (Land Administration System), aims to provide an integrated 3D view of legal (Right, Restrictions, and Responsibilities–RRR) and physical boundaries in multi-storey properties; therefore, to extend the flexible and modular basis of LADM, which best represents legal boundaries and RRRs, some integrated models using technical standards (e.g., CityGML, IFC, InfraGML) are developed to represent the full 3D cadastre. However, since most of the developed 3D integrated data models are designed at the conceptual level, there is a knowledge gap in logical data model relationships, which is the next processing step in the fully integrated 3D data model stage. The main argument of this study is an innovative ADE 4D Cadastral Data Model to represent 3D cadastral objects registration with time attributes using LADM and CityGML. The data management and organization are done in an open-source database for the Turkish cadastral s...

Sigma Journal of Engineering and Natural Sciences, Dec 1, 2018

WOS: 000454526700011In land administration, spatial data manegement plays the important role of d... more WOS: 000454526700011In land administration, spatial data manegement plays the important role of defining physical characteristics of land parcels in an accurate and discernible manner. A complementary part of spatial data infrastructure (SDI) is an effective information infrastructure that serves as the backbone of the land administration system. The paper provides a framework that supports adoption of spatial data modelling based on Land Administration Domain Model (LADM) for Turkish Land Administration System (TLAS). For this purpose, a spatial and non-spatial data model based on LADM is designed concerning the single space units subject to condominium in Turkey. The proposed data model is more comprehensive, capable of organising a wider range of spatial data, and should facilitate wider exchange of land information. The model is unique because it can support a very wide range of spatial units. Furthermore, the model was developed to help establish a national spatial data infrastructure LADM-based. To conclude, the developed model is a standardised model that could be used for local and international exchange of spatial and non-spatial data concerning land administration matters

Survey Review, 2021

In Turkey, during the realisation of the land registry and cadastre transactions, manually checki... more In Turkey, during the realisation of the land registry and cadastre transactions, manually checking the official documents exceeding 20 million annually causes some problems in document management and security. This study focuses on managing the official documents as online requested by the land registry and cadastre directorates from the other institutions during these transactions. Therefore, a general external data model based on the LADM has been proposed to manage requested documents during transactions. If web-based applications support the proposed model, access to documents will be faster and easier, and security risk will be reduced.

past or present cadastral systems are examined, it is seen that the cadastral systems have differ... more past or present cadastral systems are examined, it is seen that the cadastral systems have different purpose, content, scope and administrative structure in different countries. However, all of these systems are generally based on the same logical basis. This basis is the relationship arrangement between people and land through the rights of the cadastre on real property. Internationally, the demand for a widely accepted standardised domain model in land administration emerged in the early 2000s, partly as a result of Cadastre 2014. An effort to standardize cadastral systems started in 2002 by Lemmen and van Oosterom, who had the vision of the Core Cadastral Domain Model. Since then, the model has evolved to the international standard Land Administration Domain Model (ISO 19152). The LADM provides an abstract, conceptual model and is organized into three packages and one subpackage

... Wang R. and Zhang Y., 2003: Extraction of Urban Rural Network Using QuickBird Pan-Sharpened M... more ... Wang R. and Zhang Y., 2003: Extraction of Urban Rural Network Using QuickBird Pan-Sharpened Multispectral and Panchromatic Imagery by Performing Edge-Aided Post-Classification, ISPRS Joint Workshop on Spatial Temporal and Multi-Dimensional Data Modeling and ...

Survey Review, 2020

Cadastre in Turkey is executed as two-dimensional (2D) and parcel-based. The third dimension (3D)... more Cadastre in Turkey is executed as two-dimensional (2D) and parcel-based. The third dimension (3D) on land and real estate is shown in 2D on the map with permanent rights. The use of underground spaces cannot be registered. There are various problems in the registration and mapping of real estates that are under or above these excluded places. The research was motivated by some problems that have taken place in the Turkey 3D cadastre due to the inadequate spatial information systems. For this purpose, it is aimed to design a 3D cadastre country profile that takes into account the Turkish National Spatial Data Infrastructure (TUCBS in Turkish) land registry and cadastral data model and is compatible with the Land Administration Domain Model (LADM), which is defined within ISO 19152. In this study presents a detailed overview of the Turkish legal cadastre system and a proposal for realisation based on international standards.

Journal of Applied Remote Sensing, 2021

Abstract. For the estimation of a dense disparity map from a rectified space-borne stereo image p... more Abstract. For the estimation of a dense disparity map from a rectified space-borne stereo image pair and generation of the most qualified digital surface model (DSM), new image matching algorithms are being developed. Our study has two main goals of the DSM quality validation of Worldview-4 (WV-4), which offers the highest ground sampling distance (GSD) (30 cm) of civilian optical space-borne missions together with Worldview-3 (WV-3), and performance comparison of semiglobal matching (SGM) and least squares matching (LSM), two of the most preferred image matching algorithms for space-borne data. In the Istanbul study area with a rough topographic structure, 1 m gridded DSMs were derived from geometrically corrected WV-4 stereo image pairs. The qualities were estimated by well-rounded visual and statistical approaches based on standard deviation and normalized median absolute deviation. In model-to-model comparisons, a very high-resolution airborne laser scanning (ALS) DSM was utilized as the reference model. The results demonstrated that the WV-4 DSM derived by SGM has the standard deviation of ±0.51 m (1.7 GSD) in height in open areas, whereas the LSM DSM has ±1.46 m. In addition, the visual quality of SGM is much better than LSM through building description potential.

Together with the development of modern technology, a new communication media for accessing to th... more Together with the development of modern technology, a new communication media for accessing to the quality information has emerged. In order to access quality information faster and more practically, Web technology has been developed by Tim Berners-Lee. With this technology, Web users are able to access to the information in Web environment by entering web site URI (or URL) addresses, searching and following the related links. URIs with not only Web documents also possible to define the real world concepts. URI technology has been started with the identification of spatial objects from this property and has been investigated in this study can be accessed via the web positional information of the object. For this purpose, the spatial objects (plots) for INSPIRE URI specific to each model are defined by reference to a spatial objects and to access web resources that is associated with this definition URI QR (Quick Response) code technology is used. To flesh out the application on the ...

Nowadays Land Administration Domain Model (LADM) is a very important component for Cadastral Syst... more Nowadays Land Administration Domain Model (LADM) is a very important component for Cadastral Systems and e-government database framework all over the world. In that case, design and develop LADM for using the cadastral data specific issue for every country. When the past or present cadastral systems are examined, it is seen that the cadastral systems have different purpose, content, scope and administrative structure in different countries. However, all of these systems are generally based on the same logical basis. This basis is the relationship arrangement between people and land through the rights of the cadastre on real property. Internationally, the demand for a widely accepted standardised domain model in land administration emerged in the early 2000s, partly as a result of Cadastre 2014. An effort to standardise cadastral systems started in 2002 by Lemmen and van Oosterom, who had the vision of the Core Cadastral Domain Model. Since then, the model has evolved into the intern...