Web based multi participant spatial data entry in crime mapping

Download
index.pdf
2006
Aydın, Yunus Emre
Show full item record
203
views
77
downloads
Geographic Information Systems (GIS) development in crime analyses encourages sustainable platforms within various types of users and decision makers. Since patterns of crime incidents are pinpointed and analyzed in crime mapping, accurate data acquisition must be considered as a key concept to construct a successful GIS application. Ankara City Police Department utilizes a semi-automated geocoding interface in which crime incidents including offenders and victims are pinpointed. However, this system has some accuracy errors during geocoding, because in this process point based data are located in the center of street line segments, and this may cause position errors up to 200 meters. Therefore, additional data editing must be done to reach a reasonable accuracy. In this context, real time data editing provides opportunity to gain time instead of expanding the GIS database within received hardcopy files from each police station. As the crime incidents occur daily, online editing must be used to maintain such an accurate and efficient spatial database. In this study, for effective and accurate geocoding, a Web based data acquisition method is proposed. This online entry system enables real-time editing for GIS repository. In this way this study aims to provide a fast and reliable data acquisition system by constructing a multi participant platform enabling online data entry from each police station.
Map Drawing., Geographic information systems.
http://etd.lib.metu.edu.tr/upload/12607250/index.pdf
https://hdl.handle.net/11511/16300
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Development of GIS-based national hydrography dataset, sub-basin boundaries, and water quality/quantity data analysis system for Turkey
Girgin, Serkan; Usul, Nurünnisa; Akyürek, Zuhal; Department of Geodetic and Geographical Information Technologies (2003)
Computerized data visualization and analysis tools, especially Geographic Information Systems (GIS), constitute an important part of today̕s water resources development and management studies. In order to obtain satisfactory results from such tools, accurate and comprehensive hydrography datasets are needed that include both spatial and hydrologic information on surface water resources and watersheds. If present, such datasets may support many applications, such as hydrologic and environmental modeling, imp...
Weighted multi-visibility analysis on directional paths
Şeker, Çağıl; Toprak, Vedat; Department of Geodetic and Geographical Information Technologies (2010)
Visibility analysis is an important GIS tool that is used in a diverse array of disciplines ranging from earth sciences to telecommunications. Multi-visibility, as a cumulative type of visibility, combines many point-to-point results into a multi-value array. Points, lines, or areas can be used as sources or targets; and the combined values can be calculated in both ways. Through multi-visibility, a special 2.5D visibility value surface can be constructed over a digital elevation model. The effectiveness of...
An Embedded spatial statistics toolbox (R techniques) in open source GİS software (uDig)
Çavur, Mahmut; Düzgün, H. Şebnem; Department of Geodetic and Geographical Information Technologies (2016)
It is widely considered that geographic information systems (GIS) should include more spatial data analysis (SDA) techniques. The issues of which techniques should be included and how statistical analysis can be integrated with GIS are still widely debated. However, the typical software does not include all geospatial techniques. In this respect, this thesis focuses on the means to develop a framework which implements R spatial statistical techniques in the uDig GIS so that GIS and spatial statistical analy...
Diversity and Novelty on the Web: Search, Recommendation, and Data Streaming Aspects
Santos, Rodrygo L. T.; Castells, Pablo; Altıngövde, İsmail Sengör; CAN, FAZLI (2015-05-22)
This tutorial aims to provide a unifying account of current research on diversity and novelty in different web information systems. In particular, the tutorial will cover the motivations, as well as the most established approaches for producing and evaluating diverse results in search engines, recommender systems, and data streams, all within the context of the World Wide Web. By contrasting the state-of-the-art in these multiple domains, this tutorial aims to derive a common understanding of the diversific...
Context based interoperability to support infrastructure management in municipalities
Tufan, Emrah; Akyürek, Sevda Zuhal; Oğuztüzün, Mehmet Halit S.; Department of Geodetic and Geographical Information Technologies (2010)
Interoperability between Geographic Information System (GIS) of different infrastructure companies is still a problem to be handled. Infrastructure companies deal with many operations as a part of their daily routine such as a regular maintenance, or sometimes they deal with unexpected situations such as a malfunction due to natural event, like a flood or an earthquake. These situations may affect all companies and affected infrastructure companies response to these effects. Responses may result in conseque...
Citation Formats
Y. E. Aydın, “Web based multi participant spatial data entry in crime mapping,” M.S. - Master of Science, Middle East Technical University, 2006.
METU IIS - Integrated Information Service open@metu.edu.tr