PESTRO LETO Petrovič, Dušan
Geodetski vestnik,
03/2024, Letnik:
68, Številka:
1
Journal Article
Recenzirano
Odprti dostop
After being withdrawn from Bogensperk Castle, where it had been displayed as a permanent collection, it has been turned into a touring exhibition and is shown in various locations throughout ...Slovenia. Spatial data is essential for the functioning of society, and 2024 brings some significant innovations in this field. A decade has passed since the first laser scanning of Slovenia, which was a pioneering effort, especially regarding the free availability of data, and enabled many researchers worldwide to learn from our data.
With the ubiquity of advanced web technologies and location-sensing hand held devices, citizens regardless of their knowledge or expertise, are able to produce spatial information. This phenomenon is ...known as volunteered geographic information (VGI). During the past decade VGI has been used as a data source supporting a wide range of services, such as environmental monitoring, events reporting, human movement analysis, disaster management, etc. However, these volunteer-contributed data also come with varying quality. Reasons for this are: data is produced by heterogeneous contributors, using various technologies and tools, having different level of details and precision, serving heterogeneous purposes, and a lack of gatekeepers. Crowd-sourcing, social, and geographic approaches have been proposed and later followed to develop appropriate methods to assess the quality measures and indicators of VGI. In this article, we review various quality measures and indicators for selected types of VGI and existing quality assessment methods. As an outcome, the article presents a classification of VGI with current methods utilized to assess the quality of selected types of VGI. Through these findings, we introduce data mining as an additional approach for quality handling in VGI.
In this rejoinder, we set out some of the main points that we took from the discussions of our paper “Spatial+: A novel approach to spatial confounding.” The comments provided by the discussants ...include excellent questions and suggestions for extensions and improvements to spatial+. The discussions also highlight the growing interest in understanding spatial confounding, underpinned by the many recent contributions to the literature on this topic.
RAZSTAVA VSAK MILIMETER ŠTEJE DO KONCA JUNIJA NA OGLED NA UL FGG Fakulteta za gradbeništvo in geodezijo Univerze v Ljubljani (UL FGG) gosti razstavo z naslovom Vsak milimeter šteje - geodezija na ...Slovenskem skozi čas, ki prikazuje razvoj geodezije pri nas ter pojasnjuje številne z geodezijo in kartografijo povezane pojme. Direktor Geodetske uprave RS Tomaž Petek je dejal, da družba, ki ne skrbi za svojo preteklost, nima svetle prihodnosti, ter izpostavil, kako razstava dokazuje, da smo lahko brez skrbi za prihodnost geodetske dejavnosti in geodetske stroke. Na informativnih dnevih smo kot vsako leto ob tej priložnosti gostili strokovnjaka iz prakse - letos je bila to Anja Vrečko, geodetinja in razvojnica iz podjetja Sinergise d.o.o., ki je mladim zanimivo predstavila, kako in zakaj se je odločila za študij geodezije in zakaj je še danes prepričana, da je bila odločitev prava. European Spatial Data Research) je vseevropsko združenje, katerega začetki delovanja segajo v daljno leto 1953. Strokovni program smo začeli na območni geodetski upravi v Murski Soboti, kjer nam je dr. Joc Triglav predstavil posebnosti katastra v Prekmurju, ki je zaradi sistematičnih novih izmer in komasacij v preteklih desetletjih veliko bolj kakovosten, kot to velja za preostale pokrajine v Sloveniji.
Nowadays, the up-to-date and consistent digital spatial information is highly expected by the users. The kind of mapping method development which offers the potential to meet the high expectations is ...automatic map generalization. In Indonesia map generalization was only implemented in medium and small scale, and has never been done from large scale. This research aims as a beginning in map generalization from large scale by looking at the condition of existing data at all three levels of scale. Therefore, the data selected must be available on large, medium, and small scale. In this study, Bogor is chosen because it had been mapped on a scale of 1:5,000; 1:25,000; and 1:250,000. These operations used are a) selection, b) classification, c) amalgamation, d) aggregation, and e) simplification. The feature studied in this research is building. From this research, we can determine generalization pattern from scale of 1:5,000 to scale of 1:25,000 and 1:250,000 for building feature, so it can be used as prototype design in building generalization from large scale to medium and small scale.
Postavil je prvo celostno trirazsežno geodetsko podlago za geografski informacijski sistem v tedanji Jugoslaviji: kataster, topografijo in model terena ter zgradb za mesto Cavtat. Z osamosvojitvijo ...Slovenije in novo družbeno ureditvijo je inštitut stopil na pot intenzivnega šolanja in zaposlovanja nadarjenega mlajšega kadra s strokovnimi ambicijami. Hkrati je slovenski predstavnik v organizaciji EuroSDR (European Spatial Data Research) in deluje kot nacionalna kontaktna točka za evropsko kartiranje pokritosti tal (angl, land cover mapping. Je nosilec vrste drugih nacionalnih in mednarodnih nagrad ter priznanj, kot so Turistični nagelj RTV Slovenije za dosežke v turistični kartografiji, srebrna nagrada Gospodarske zbornice Slovenije za inovativne rešitve na področju mobilnosti invalidov (slika 10), priznanje za prvo pomorsko karto na elipsoidu WGS84 v Sredozemlju (US Naval Oceanographic Office; slika 8), medalja Mednarodne zveze za fotogrametrijo in daljinsko zaznavanje (ISPRS) za prispevek k razvoju fotogrametrije in priznanje za inovativno aplikacijo s področja prostorsko-časovne statistike (Eurostat).
The function of many biological systems, such as embryos, liver lobules, intestinal villi, and tumors, depends on the spatial organization of their cells. In the past decade, high-throughput ...technologies have been developed to quantify gene expression in space, and computational methods have been developed that leverage spatial gene expression data to identify genes with spatial patterns and to delineate neighborhoods within tissues. To comprehensively document spatial gene expression technologies and data-analysis methods, we present a curated review of literature on spatial transcriptomics dating back to 1987, along with a thorough analysis of trends in the field, such as usage of experimental techniques, species, tissues studied, and computational approaches used. Our Review places current methods in a historical context, and we derive insights about the field that can guide current research strategies. A companion supplement offers a more detailed look at the technologies and methods analyzed: https://pachterlab.github.io/LP_2021/ .
tmap : Thematic Maps in R Tennekes, Martijn
Journal of statistical software,
04/2018, Letnik:
84, Številka:
6
Journal Article
Recenzirano
Odprti dostop
Thematic maps show spatial distributions. The theme refers to the phenomena that is shown, which is often demographical, social, cultural, or economic. The best known thematic map type is the ...choropleth, in which regions are colored according to the distribution of a data variable. The R package tmap offers a coherent plotting system for thematic maps that is based on the layered grammar of graphics. Thematic maps are created by stacking layers, where per layer, data can be mapped to one or more aesthetics. It is also possible to generate small multiples. Thematic maps can be further embellished by configuring the map layout and by adding map attributes, such as a scale bar and a compass. Besides plotting thematic maps on the graphics device, they can also be made interactive as an HTML widget. In addition, the R package tmaptools contains several convenient functions for reading and processing spatial data.
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