Map4OLAP: A web-based tool for interactive map visualization of OLAP queries

Author(s):  
Sandro Bimonte ◽  
Elodie Edoh-Alove ◽  
Fagnine Alassane Coulibaly
Author(s):  
Nicola Orio ◽  
Berardina De Carolis ◽  
Francesco Liotard

AbstractAlthough overshadowed by visual information, sound plays a central role in how people perceive an environment. The effect of a landscape is enriched by its soundscape, that is, the stratification of all the acoustic sources that, often unconsciously, are heard. This paper presents a framework for archiving, browsing, and accessing soundscapes, either remotely or on-site. The framework is based on two main components: a web-based interface to upload and search the recordings of an acoustic environment, enriched by in- formation about geolocation, timing, and context of the recording; and a mobile app to browse and listen to the recordings, using an interactive map or GPS information. To populate the archive, we launched two crowdsourcing initiatives. An initial experiment examined the city of Padua’s soundscape through the participation of a group of undergraduate students. A broader experiment, which was proposed to all people in Italy, aimed at tracking how the nationwide COVID-19 lockdown was dramatically changing the soundscape of the entire country.


Author(s):  
Elena Grossman ◽  
Michelle Hathaway ◽  
Amber Khan ◽  
Apostolis Sambanis ◽  
Samuel Dorevitch

Abstract Objectives: Little is known about how flood risk of health-care facilities (HCFs) is evaluated by emergency preparedness professionals and HCFs administrators. This study assessed knowledge of emergency preparedness and HCF management professionals regarding locations of floodplains in relation to HCFs. A Web-based interactive map of floodplains and HCF was developed and users of the map were asked to evaluate it. Methods: An online survey was completed by administrators of HCFs and public health emergency preparedness professionals in Illinois, before and after an interactive online map of floodplains and HCFs was provided. Results: Forty Illinois HCFs located in floodplains were identified, including 12 long-term care facilities. Preparedness professionals have limited knowledge of whether local HCFs were in floodplains, and few reported availability of geographic information system (GIS) resources at baseline. Respondents intended to use the interactive map for planning and stakeholder communications. Conclusions: Given that HCFs are located in floodplains, this first assessment of using interactive maps of floodplains and HCFs may promote a shift to reliable data sources of floodplain locations in relation to HCFs. Similar approaches may be useful in other settings.


2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Xian Jin ◽  
Mahendra Awale ◽  
Michaël Zasso ◽  
Daniel Kostro ◽  
Luc Patiny ◽  
...  

2013 ◽  
Vol 75 (7) ◽  
pp. 462-467
Author(s):  
Nancy M. Trautmann ◽  
James G. MaKinster ◽  
Michael Batek

Using an interactive map-based PDF, students learn key concepts related to biodiversity while developing data-analysis and critical-thinking skills. The Bird Island lesson provides students with experience in translating geospatial data into bar graphs, then interpreting these graphs to compare biodiversity across ecoregions on a fictional island. When the lesson is extended to include real data for Puerto Rico, students can explore distributions of selected bird species based on environmental attributes, making connections between each species’ adaptations, habitat requirements, and distribution across the island. This introductory lesson provides a jumping-off point for field and Web-based biodiversity investigations.


2014 ◽  
Vol 513-517 ◽  
pp. 822-826 ◽  
Author(s):  
Mardityo Tulus Titanto ◽  
Teduh Dirgahayu

Web 2.0 technologies have offered interactive map services on the Internet. Google Maps is a map service that makes available its API (application programming interface) for developing Web-based geospatial applications. In such applications, layers are used to organise spatial data. Using layers, users can abstract from data that are irrelevant to their interest. However, Google Maps API has no direct support to the development of custom layers management. Developers have to design and implement such support in every application they develop. It makes the development processes less efficient and error prone. This paper proposes a software framework to facilitate the development of geospatial applications with custom layers based on Google Maps. Using this framework, developers can produce higher quality applications in shorter time.


Author(s):  
L. M. L. Pascoal ◽  
L. L. Parente ◽  
S. H. M. Nogueira ◽  
L. G. Ferreira Júnior

Abstract. Considered a conservation hotspot of the world biodiversity and a key region for the agriculture production in Brazil, the Cerrado biome has only 7.5% of its native vegetation as fully protected areas. Given this, in 2016 the Brazilian government started an official project to monitoring deforestation in the biome, through the so-called PRODES-Cerrado, responsible for mapping deforested areas from 2000 on, and DETER-Cerrado, responsible to generate deforestation alerts. Seeking to contribute with both context information and confidence levels for the polygons produced by these two monitoring systems, we developed the Deforestation Polygon Assessment Tool. This web-based platform process and presents several analysis for PRODES-Cerrado and DETER-Cerrado polygons using automatic assessments (e.g. BFastMonitor and Weights of Evidence), field validation and spatial analysis with key datasets (e.g. National Land Registry, Land-Use and Land-Cover maps). The platform implements an interactive map which allows a fast and comprehensive visualization of different layers, as well as a Deforestation Report at the polygon level, which gathers all the information about each polygon, providing greater reliability and understanding of the deforestation dynamics in the Cerrado. Future improvements in the platform will consider additional, spatial relations in order to assist government agencies to either prevent or reduce deforestation occurrences in each municipality in the Cerrado biome.


2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
Andrew J. Graettinger ◽  
Zachary T. Ryals ◽  
Randy K. Smith

A web-based Geotechnical Geographic Information System (GeoGIS) was developed and tested for the Alabama Department of Transportation. This web-based system stores geotechnical information about transportation projects, such as subsurface data, construction drawings, and design information. Typically, this information is in a report or plan sheet format, but raw geotechnical data can also be accommodated in the GeoGIS. The goal of this system is to provide easy access and storage for all geotechnical and subsurface structural information from across a state. Access through a secure web interface allows for keyword searches and interactive map selection. The web-based GeoGIS has four geotechnical layers (project, bridge, foundation, and soil boring) that can be displayed on a road map, aerial photos, or USGS 7.5 minute quadrangles. For testing purposes the GeoGIS was populated with multiple document types, formats, and sizes. In all cases, the system performed above expectations.


2010 ◽  
pp. 16-21
Author(s):  
Manuela Feist ◽  
Benedikt Hebeisen ◽  
Matthias Prellwitz ◽  
Juergen Sieck

The paper presents a web-based tour documentation. An interactive map of Germany displays stations already being visited by a mobile museum and those being planned. Station details offering further information as well as various media representation. A barrier-free HTML version also provides editorial and administrative functionality.


Author(s):  
Milena Frtunić Gligorijević ◽  
Darko Puflović ◽  
Evgenija Stevanoska ◽  
Tatjana Jevtović Stoimenov ◽  
Goran Velinov ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document