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Data Management Platform of Forest Ecological Station Based on Internet of Things and Big Data Sensor

Ping'an Sun
2022 Journal of Sensors  
, and the system response time is 69.5% lower than that before optimization.  ...  The results show that the proposed scheme has significantly improved the performance in the aspects of cluster load balancing and massive structured and unstructured data retrieval efficiency and system  ...  In the design of GIS data RowKey, RowKey is site + timestamp, which is divided into three column families: the spatial information column family, attribute information column family, and topological information  ... 
doi:10.1155/2022/1207745 doaj:dc363291b3c7439a90149c78f1d68768 fatcat:wcyz6j4bd5cnzhyvbwt2qca7ri

Enhancing discovery in spatial data infrastructures using a search engine

Paolo Corti, Athanasios Tom Kralidis, Benjamin Lewis
2018 PeerJ Computer Science  
A spatial data infrastructure (SDI) is a framework of geospatial data, metadata, users and tools intended to provide an efficient and flexible way to use spatial information.  ...  It is now possible to discover spatial datasets from metadata by using the standard search operations of the catalogue and to take advantage of the new abilities of the search engine, to return relevant  ...  This is a different approach from using an Application Profile or Best Practice, as it directly interacts with data in the search engine rather than in the RDBMS (Fig. 7 ).  ... 
doi:10.7717/peerj-cs.152 pmid:33816806 pmcid:PMC7924664 fatcat:2ygdrcfp5nfqtmp5kmwbhrobri

Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals

Bernhard Vockner, Manfred Mittlböck
2014 ISPRS International Journal of Geo-Information  
Geoportals are established to function as main gateways to find, evaluate, and start "using" geographic information.  ...  Therefore, we propose an enhanced semantic discovery approach that supports multilingualism and information domain context.  ...  a portal of the federal states of Austria (GIS-Steiermark) for providing their metadata for research purposes.  ... 
doi:10.3390/ijgi3010345 fatcat:nmvl4wqbtbe3hhclpdvbtsvpcy

A spatio-temporal-textual crime search engine

Xutong Liu, Changshu Jian, Chang-Tien Lu
2010 Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems - GIS '10  
It's getting more difficult considering the subjectivity and vagueness of information retrieval from narratives of victims or witness and online documents of social networks.  ...  This paper proposes a STT(spatio-temporal-textual) search engine for extracting, indexing, querying and visualizing crime information.  ...  Crime information has inherent correlation in terms of spatial and temporal analysis and reasoning.  ... 
doi:10.1145/1869790.1869881 dblp:conf/gis/LiuJL10 fatcat:o2fjulzz6vdulpz3jriaaklne4

State-of-the-Art Geospatial Information Processing in NoSQL Databases

Dongming Guo, Erling Onstein
2020 ISPRS International Journal of Geo-Information  
times, and more flexible scalability than traditional spatial relational databases currently have.  ...  We summarize the supported geometry objects, main geometry functions, spatial indexes, query languages, and data formats of these 10 NoSQL databases.  ...  In testing of the most used spatial query functions in different databases, NoSQL databases performed better than did relational databases, especially mobile-GIS and Web-GIS [18, 19] .  ... 
doi:10.3390/ijgi9050331 fatcat:ciu3566anfh35cibo7gowlhnh4

Apache Science Data Analytics Platform [article]

Thomas Huang
2018 Figshare  
The Apache Science Data Analytics Platform (SDAP) ( is a suite of Big Data solutions created through the support of the NASA Advanced Information Technology (AIST) and  ...  Its goal is to create a community-supported, integrated platform for big geospatial data analysis using Cloud computing technology.  ...  buckets • Software Deployment.. manually • Build • Package • Install • Configure • Shell login (security issues) • DockerHub ECS CloudFormation Solr Spark Mesos SpringXD Query/ Retrieval  ... 
doi:10.6084/m9.figshare.5786421.v1 fatcat:mhrixgkxcfhpzlsuzgr5mkdmgu

The Norwegian National Ground Segment; Preservation, Distribution and Exploitation of Sentinel Data

Trygve Halsne, Lara Ferrighi, Bard Saadatnejad, Nico Budewitz, Frode Dinessen, Lars-Anders Breivik, Øystein Godøy
2019 Data Science Journal  
Using the latter format, services like regridding, subsetting, visualization and aggregation are integrated utilizing OPeNDAP in combination with OGC WMS and OGC WPS.  ...  In addition, data uploading and retrieving operations are simplified for an end user since streaming of data by means of OPeNDAP is supported in multiple programming languages.  ...  SolR is used for a large number of web applications, offering faceted searching, spatio-temporal querying and text search, among others.  ... 
doi:10.5334/dsj-2019-061 fatcat:lgf6txartnf7xpvqergrki4p7i

Search System Survey Report

Sirijodha Khalsa, Peter Cotroneo, Mingfang Wu
2018 Figshare  
We examined the practices that data repositories employ in helping users search their holdings and demonstrate the value of looking across disciplines at the common data discovery issues, such as relevancy  ...  Index and retrieval are two key components of an information retrieval system. Index is to representing the resources that will be retrieved.  ...  publishers ➔ Intelligent search ➔ Provide some training materials for relevancy ranking implementation and optimal use of provided solutions by scientists (similar to data and software carpentry training  ... 
doi:10.6084/m9.figshare.6011018 fatcat:6mihpgrowvcibgg3inedwarizu

E‐Ark Search, Access And Display Interfaces

Alex Thirifays, Andreas Kring, Lanre Abiwon, Frank Thomsen, Mihai Bartha, Bruno Ferreira, Zoltán Lux, Gregor Završnik, Anja Paulič, Kuldar Aas, Andrew Wilson, David Anderson (+1 others)
2018 Zenodo  
The tools that are described and provided allow Consumers (ie. end-users and archivists) to: 1. Search and order records (primarily end-users, but also archivists) 2.  ...  The deliverable associated with this report is mainly a software deliverable and therefore this document provides only underpinning descriptions of and links to the software itself.  ...  , and retrieving of OAIS information holdings by Consumers.  ... 
doi:10.5281/zenodo.1172981 fatcat:czfosnhnundgdon5v4c637gw2u

Big Data and Cloud Computing [chapter]

Yun Li, Manzhu Yu, Mengchao Xu, Jingchao Yang, Dexuan Sha, Qian Liu, Chaowei Yang
2019 Manual of Digital Earth  
., vector and raster, structured and unstructured.  ...  Big data emerged as a new paradigm to provide unprecedented content and value for Digital Earth.  ...  In addition, open-source information retrieval frameworks, e.g., Apache Lucene or its variants such as Solr and Elasticsearch (McCandless et al. 2010) , were adopted to establish an Earth data portal  ... 
doi:10.1007/978-981-32-9915-3_9 fatcat:n4drlq63tvfczbvfaopvkkhec4

Search Facets and Ranking in Geospatial Dataset Search

Thomas Hervey, Sara Lafia, Werner Kuhn, Judith A. Verstegen, Krzysztof Janowicz
2020 International Conference Geographic Information Science  
To process and interpret queries, most portals use a vertical full-text search engine like Apache Solr to query data from a content-management system like CKAN.  ...  When processing queries, most portals initially filter results and then rank the remaining results using a common keyword frequency relevance metric (e.g., TF-IDF). Some portals use query expansion.  ...  The geographic information science community needs to know what search functionality already exists to better inform future developments of geospatial search and geographic information retrieval (GIR).  ... 
doi:10.4230/lipics.giscience.2021.i.5 dblp:conf/giscience/HerveyLK21 fatcat:2fnxysem55dd7lzfdukv6d5bgy

Spatio-temporal disease tracking using news articles

Rongjian Lan, Marco D. Adelfio, Hanan Samet
2014 Proceedings of the Third ACM SIGSPATIAL International Workshop on the Use of GIS in Public Health - HealthGIS '14  
Geographical Information Systems have been increasingly used to aid the prompt detection, tracking, and analysis of disease outbreaks.  ...  News posts often report the initial outbreak of diseases and contain valuable information that aids in ascertaining the time and location of the disease outbreak.  ...  systems (GIS).  ... 
doi:10.1145/2676629.2676637 dblp:conf/gis/LanAS14 fatcat:npz7n6n6trfnldue2i6dpdf22e

Software solutions for web information systems in digital humanities: review, analysis and comparative study

Maurizio Toscano, Manuel J. Cobo, Enrique Herrera-Viedma
2022 El Profesional de la Informacion  
Research in the humanities increasingly depends on how information is structured and managed and how, on the basis of that information, new knowledge is produced.  ...  The aim of this paper was to produce, from an operational and implementation perspective, a review of software solutions frequently used to develop web information systems for research projects in humanities  ...  They originate in the business environment to manage, store, process and retrieve data, in order to produce information.  ... 
doi:10.3145/epi.2022.mar.11 fatcat:bwplwurrcbdvhnrfpv33kgdupi

GeoAnnotator: A Collaborative Semi-Automatic Platform for Constructing Geo-Annotated Text Corpora

Morteza Karimzadeh, Alan MacEachren
2019 ISPRS International Journal of Geo-Information  
The resulting corpora can be used in improving and benchmarking geoparsing algorithms as well as various other spatial language-related methods.  ...  Further, the iterative design process and the resulting design decisions can be used in annotation platforms tailored for other application domains of NLP.  ...  Acknowledgments: We thank Scott Pezanowski for his set up of a Solr index on GeoNames data, and contributions to the GeoTxt geoparser leveraged in GeoAnnotator.  ... 
doi:10.3390/ijgi8040161 fatcat:5fov3gq3t5fz5jevhn6s76hvgm

The U.S. Arctic Observing Viewer: A Web-Mapping Application for Enhancing Environmental Observation of the Changing Arctic

William F. Manley, Allison G. Gaylord, Ari Kassin, Ryan Cody, Walter A. Copenhaver, Mike Dover, Stephen M. Escarzaga, Ryan Font, Alan E. Garcia, Ted Haberman, David H. Lin, Roberta Score (+2 others)
2015 Arctic  
AOV is founded on principles of interoperability, with open metadata and web service standards, so that agencies and organizations can use AOV tools and services for their own purposes.  ...  This web mapping application and information system has begun to compile the who, what, where, and when for thousands of data collection sites (such as boreholes, ship tracks, buoys, towers, sampling stations  ...  ArcGIS Desktop and ArcGIS Server 10.2 were used to create and host the Geographic Information Systems (GIS) layers containing both spatial and non-spatial data of the application. to the SQL Server database  ... 
doi:10.14430/arctic4477 fatcat:qznq5hcrzjfrfkio2drrh6673a
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