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检索条件"丛书名=Lecture Notes in Geoinformation and Cartography"

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Validating GEOBIA Based Terrain Segmentation and Classification for Automated Delineation of Cognitively Salient Landforms 13th

Validating GEOBIA Based Terrain Segmentation and Classificat...

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13th International Conference on Spatial Information Theory (COSIT)

作者： Arundel, Samantha T. Sinha, Gaurav USGS Ctr Excellence Geog Informat Sci CEGIS Rolla MO 65401 USA Ohio Univ Dept Geog Athens OH 45701 USA

ISBN: (纸本)9783319639468;9783319639451

Landform objects extracted from Geographic Object Based Image Analysis (GEOBIA) based terrain segmentation to locations are overlaid and compared to feature types of landforms mapped in the USGS maintained Geographic Names Information System (GNIS) topographic database. GEOBIA terrain objects were found to statistically related to GNIS feature classes. Comparison of GNIS feature classes and GEOBIA landform classes suggests that GEOBIA landform class semantics correspond well with naive geographic conceptualizations reflected in GNIS feature types.

关键词： Terrain mapping Semantics Feature extraction GEOBIA GNIS

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Dynamical Flash Flood Risk Forecast

Dynamical Flash Flood Risk Forecast

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GIS Ostrava Conference

作者： Rapant, Petr Kolejka, Jaromir VSB Tech Univ Ostrava Inst Geoinformat Fac Min & Geol 17 Listopadu 15-2172 Ostrava 70833 Czech Republic Czech Acad Sci Inst Geon Drobneho 301-28 Brno 60200 Czech Republic

ISBN: (纸本)9783319612973;9783319612966

Flash floods represent very dynamical natural phenomenon. Mostly, they are the result of torrential rains which can rise suddenly in any part of a country and are tough to predict. Of course, there are many weather forecasting systems, but their spatial and temporal resolution is usually insufficient for these purposes. There are also monitoring systems which can either register precipitation over the ground (a network of rain gauge stations) or runoff in riverbeds (a network of hydrometric stations). Again, spatial (and possibly temporal) resolution is not sufficient, and in the case of runoff monitoring, there is a substantial delay between actual rainfall and registration of runoff in riverbeds. And, of course, when the hydrometric station registers higher runoff than the flash floods is running or even over. From the point of early warning, all these systems reveal disadvantages. Aside from these systems, there is one which provides us with timely information about the spatial and temporal distribution of precipitation intensity over the ground. That is weather radar. We will demonstrate possible usage of these data for dynamic prediction of flash flood risk distribution in space and time over the monitored area. Proper processing of these data in combination with soil saturation indicator established using Flash flood guidance methodology developed by the US Hydrologic Research Center can generate timely information usable for early warning with a substantially reduced level of false warnings.

关键词： Flash flood Risk prediction Weather radar

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A Reference Landform Ontology for Automated Delineation of Depression Landforms from DEMs 13th

A Reference Landform Ontology for Automated Delineation of D...

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13th International Conference on Spatial Information Theory (COSIT)

作者： Sinha, Gaurav Arundel, Samantha T. Stewart, Kathleen Mark, David Hahmann, Torsten Romero, Boleslo Sorokine, Alexandre Usery, Lynn McKenzie, Grant Ohio Univ Dept Geog Athens OH 45701 USA USGS Ctr Excellence Geog Informat Sci CEGIS Rolla MO USA Univ Maryland Dept Geog Sci College Pk MD 20742 USA SUNY Buffalo Dept Geog Buffalo NY USA Univ Maine Natl Ctr Geog Informat & Anal NCGIA Sch Comp & Informat Sci Orono ME USA Univ Calif Santa Barbara Dept Geog Santa Barbara CA 93106 USA Oak Ridge Natl Lab Oak Ridge TN USA

ISBN: (纸本)9783319639468;9783319639451

This reference landform ontology is intended to guide automated delineation of landforms from digital elevation models (DEMs) and semantic information retrieval about landforms. Since only form related information is available from DEMs, the categories of this reference ontology are defined based only on morphological criteria. The choice of the landform categories is informed by ethnophysiographic and spatial cognition research. The proposed taxonomy is work in progress and reflects the current focus on automated delineation and mapping of depression landforms (e.g., basins, valleys and canyons).

关键词： Landform Topography Depression Delineation Reference ontology

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Speaking of Location: Future Directions in Geospatial Natural Language Research-Introduction 13th

Speaking of Location: Future Directions in Geospatial Natura...

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13th International Conference on Spatial Information Theory (COSIT)

作者： Stock, Kristin Jones, Chris B. Vasardani, Maria Massey Univ Inst Nat & Math Sci Auckland New Zealand Cardiff Univ Sch Comp Sci & Informat Cardiff Wales Univ Melbourne Dept Infrastruct Engn Melbourne Vic Australia

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Towards the Extraction of Semantics from Incomplete Archaeological Records 13th

Towards the Extraction of Semantics from Incomplete Archaeol...

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13th International Conference on Spatial Information Theory (COSIT)

作者： Migliorini, S. Grossi, P. Univ Verona Dept Comp Sci Str Grazie 15 I-37134 Verona Italy Univ Verona Dept Culture & Civilizat Viale Univ 4 I-37129 Verona Italy

ISBN: (纸本)9783319639468;9783319639451

The Archaeological Geographical Information System of Verona (SITAVR) has been developed since 2011, starting from an existing and well-consolidated system, the Archaeological Geographical Information System of Rome (SITAR). The main objective of both projects is collecting information about the archaeological findings regarding the two Italian urban centres with the aim to support a complete archaeological analysis and allow for easy data reuse and dissemination. Data collected in both projects come not only from current excavation campaigns, but they have also been extracted from very old documents describing excavations performed during the 18th century. In this last case, many details about the location and the time of existence of findings are not known. The SITAVR project has lead to the definition of a domain model for archaeological data, called Star, and now it is focused on the mapping between this model and other international standards, such as the CIDOC CRM (2016) and its extension CIDOC-CRMarcheo (Felicetti et al. 2016). This paper presents a general approach for guiding the mapping of a dataset regarding ancient archaeological data towards CIDOC-CRMarcheo, especially for what concerns to spatial and temporal properties that are only partially specified.

关键词： Incomplete archaeological data Spatio-temporal archaeological data Ontology CIDOC-CRM Semantic mapping

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Multilingual Sentiment Mapping Using Twitter, Open Source Tools, and Dictionary Based Machine Translation Approach

Multilingual Sentiment Mapping Using Twitter, Open Source To...

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GIS Ostrava Conference

作者： Kocich, David VSB Tech Univ Ostrava Fac Min & Geol Inst Geoinformat 17 Listopadu 15 Ostrava 70833 Czech Republic

ISBN: (纸本)9783319612973;9783319612966

Online social networks are a popular communication tool for internet users. Millions of users share opinions on different aspects of everyday life. Therefore, microblogging websites are rich sources of data for opinion mining and sentiment analysis. Our current research based on the analysis of migration using various social networks required to implement a tool for automated multilingual analysis of sentiment from as many languages as possible. Usually, all available tools handle to work only with English written texts which are the most common on the social media. Few open source tools which can process French, German and Spanish texts exist too, but it is not optimal to reimplement and join different approaches together. Another requirement is the ability to process dynamic data streams and static historical datasets with high efficiency. Lesser accuracy and completeness of evaluated messages is acceptable as a counterweight for these general requirements. The paper presents sample data collection from Twitter for the opinion mining purposes. We perform multilingual sentiment analysis of the collected data and briefly explain experimental results. The analysis is made with the use of custom built solution utilising the AFINN-165 which is manually evaluated dictionary of English words. This dictionary was translated into other languages using Google Translate API that was tested during the process. It is then possible to determine positive, negative and neutral sentiment. Results of the research bring new insights, offer a possibility for wider use and allow optimisation of the wordlists/tool resulting in the better results of future research. Geospatial analysis of first experimental results undercovers interesting relation between time, location and a sentiment which enables readers to think of various use cases.

关键词： Sentiment analysis Opinion mining AFINN-165 Twitter Open source

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Mapping Spatiotemporal Tourist Behaviors and Hotspots Through Location-Based Photo-Sharing Service (Flickr) Data 14th

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14th International Conference on Location Based Services

作者： Lee, Joey Ying Tsou, Ming-Hsiang San Diego State Univ Dept Geog Ctr Human Dynam Mobile Age San Diego CA 92182 USA

ISBN: (纸本)9783319714707;9783319714691

Social media services and location-based photo-sharing applications, such as Flickr, Twitter, and Instagram, provide a promising opportunity for studying tourist behaviors and activities. Researchers can use public accessible geo-tagged photos to map and analyze hotspots and tourist activities in various tourist attractions. This research studies geo-tagged Flickr photos collected from the Grand Canyon area within 12 months (2014/12/01-2015/11/30) using kernel density estimate (KDE) mapping, Exif (Exchangeable image file format) data, and dynamic time warping (DTW) methods. Different spatiotemporal movement patterns of tourists and popular points of interests (POIs) in the Grand Canyon area are identified and visualized in GIS maps. The frequency of Flickr's monthly photos is similar (but not identical) to the actual tourist total numbers in the Grand Canyon. We found that winter tourists in the Grand Canyon explore fewer POIs comparing to summer tourists based on their Flickr data. Tourists using high-end cameras are more active and explore more POIs than tourists using smart phones photos. Weekend tourists are more likely to stay around the lodge area comparing to weekday tourists who have visited more remote areas in the park, such as the north of Pima Point. These tourist activities and spatiotemporal patterns can be used for the improvement of national park facility management, regional tourism, and local transportation plans.

关键词： Spatiotemporal Hotspot analysis Geo-tagged photos Tourism Flickr Grand Canyon

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Prediction of Land-Use Development Under Influence of Climate Change

Prediction of Land-Use Development Under Influence of Climat...

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GIS Ostrava Conference

作者： Pechanec, Vilem Mraz, Alexander Benc, Antonin Macku, Karel Cudlin, Pavel Palacky Univ Olomouc Dept Geoinformat Fac Sci 17 Listopadu 50 Olomouc 77146 Czech Republic Acad Sci Czech Republ Ctr Res Global Change Lipova 9 Ceske Budejovice 37005 Czech Republic

ISBN: (纸本)9783319612973;9783319612966

Land-use change is considered one of the most critical processes when attempting to understand and model the global change. Land-use change has an interdependent relationship with the climate change. Climate change in the Czech Republic incurs a substantial pressure on human society and natural ecosystems through the increase of temperature and higher occurrence of droughts and floods. The principal purpose of the study was to model and assess the future land-use distribution in the Czech Republic based on historical land-use data and climate change information. For assessment of future ecosystem services, the current rate of ecosystem service fulfillment is set and compared in time and space with modeled situations. TerrSet's Land Change Modeller was used to create land-use projection models based on principles of historical trends and business as usual projection scenario. The land-use prediction was performed for the entire Czech Republic using HadGEM2-ES climate model with RCP 4.5 and RCP 8.5 emission scenarios. The output of the modeling was a set of raster maps which presented the future land coverage for each category and location. A spatio-temporal analysis was then performed to determine the difference in representation of each land cover category for a period 2012-2050. The results show that most severe change in the land cover appears in loss of agricultural sites mainly caused by increase in urban areas and forests. Planners and policymakers can use the results of this study to incorporate adaptation measures including the change of land use to more natural habitats and implementation of more ecological management to mitigate the adverse effect of urbanization and climate change. The contribution of the study is in presenting selected tools for modeling expected future land use and development of maps displaying future spatial distribution and quantification of land use categories for the Czech Republic.

关键词： Land use development Climate change CORINE land cover Land change modeler

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Dynamics of Legal Changes in Polish Cadastre

Dynamics of Legal Changes in Polish Cadastre

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GIS Ostrava Conference

作者： Dawidowicz, Agnieszka Klimach, Anna Zrobek, Ryszard Univ Warmia & Mazury Fac Geodesy Geospatial & Civil Engn Dept Real Estate Resources Prawochenskiego St 15 PL-10720 Olsztyn Poland

ISBN: (纸本)9783319612973;9783319612966

In more developed countries, contemporary cadastral system design is premised on the need for credibility, accuracy, timeliness, flexibility, completeness, and availability. Cadastral Systems as the official land information systems for the entire country operate on the basis of clearly defined principles contained in the legislation. Any need to modernize the system require changes in legislation. This paper focuses specifically on cadastral system flexibility, which stems directly from the dynamics of law. The method used to develop the approach is based upon dynamics of legal changes in the context of the international development concepts. The approach is then applied to the Polish cadastral system. It is found that a measure of real estate cadastre legal flexibility is it's ability to react to dynamic, changing rules and situation. Globally, this means that the proposed approach can be adopted to determine cadastral flexibility in terms of its legal framework.

关键词： Cadastre Land administration system System flexibility Legal flexibility Legal dynamic

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Directory Maps: A Neglected Cartographic Resource 6th

Directory Maps: A Neglected Cartographic Resource

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6th International Symposium of the ICA-Commission-on-the-History-of-cartography on Dissemination of Cartographic Knowledge - Production-Trade-Consumption-Preservation

作者： Moore, John Univ Glasgow Lib Glasgow Lanark Scotland

ISBN: (纸本)9783319615158;9783319615141

Research in historical cartography has frequently focused on several specific fields, namely, the major products of an individual cartographer, state agency or nation or the study of a particular collection or genre of mapping. The advent of the digital era has seen this focus reinforced by the wider availability of high resolution digital images of the most important or significant maps in the world's leading map collections. While the publishing of trade and street directories was a relatively short-lived phenomenon in the history of printing, the information included in the individual volumes has been recognized as a valuable resource for students of urban and social history. However, although the directories themselves have which frequently accompanied the published volumes. This paper introduces the initial findings of research on those maps accompanying the variety of Scottish directories published in the period up to the outbreak of the Great War in 1914.

关键词： Maps

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