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IMPROVING PATH QUERY PERFORMANCE IN PGROUTING USING A MAP GENERALIZATION APPROACH
pgRouting Road Networks Skeletal Model Skeleton Shortest Path Map Generalization Zones Path Computation
2018/11/8
pgRouting library provides functions to compute shortest path between any two points of a road network which is of great demand and also a topic of interest in the field of GIS, graph theory and trans...
ADDING 3D GIS VISUALIZATION AND NAVIGATION TO THE SPARQL QUERY LOOP
3D visualization, geospatial data, Linked Data, SPARQL, REPL, data analytics
2018/11/8
3D environments allow advanced spatial navigation and visualization, but have traditionally provided limited support for performing non-spatial data analysis operations like filtering, joining, and in...
GEOYASGUI: THE GEOSPARQL QUERY EDITOR AND RESULT SET VISUALIZER
GeoSPARQL IDE Linked Open Data Open Government Semantic Web
2017/8/10
The Netherlands' Cadastre, Land Registry and Mapping Agency – in short Kadaster – collects and registers administrative and spatial data on property and the rights involved. This includes for ships, a...
Generic text-based compression models are simple and fast but there are two issues that needs to be addressed. They cannot leverage the structure that exists in data to achieve better compression and ...
A Query Language for Understanding Component Interactions in Production Systems
Query language logs influence correlation production systems
2016/5/24
When something unexpected happens in a large production system,administrators must first perform a search to isolate which components and component interactions are likely to be involved. The system m...
Generalized Selection via Interactive Query Relaxation
Selection annotation pointing reference information visualization input techniques query relaxation
2016/5/24
Selection is a fundamental task in interactive applications,
typically performed by clicking or lassoing items of
interest. However, users may require more nuanced forms
of selection. Selecting reg...
Query Understanding Enhanced by Hierarchical Parsing Structures
query understanding semantic tagging linguistic parsing
2016/1/23
Query understanding has been well studied in the areas of information retrieval and spoken language understanding(SLU). There are generally three layers of query understanding: domain classification, ...
Photo Based Interaction and Query for End-User Applications
Photography Multimedia Interface GIS Photogrammetry Recognition
2015/12/17
We present GeoPilot, a system that combines photogrammetric techniques with GIS functionality to automate the identification of images. GeoPilot can be used to “tag” photos with keywords and location ...
on a New Model and Algorithm to Estimate Geographical Similarity between Document and Query in GIR System
Spatial Information Science GIS Information Service Information Retrieval
2015/12/2
The usage of single geographical footprint model in existing Geographical Information Retrieval (GIR) system will cause many problems like overestimation or underestimation of the geographical scopes ...
For 3D city management visualization, query and the analysis of 3D data related to cities are very important tasks. In this paper, we
present a tool (3D-City VAQS/ 3D-City Visualization Analyse and ...
RESEARCH ON EXTENSION OF SPARQL ONTOLOGY QUERY LANGUAGE CONSIDERING THE COMPUTATION OF INDOOR SPATIAL RELATIONS
Indoor Space Ontology Semantic Query SPARQL Indoor Spatial Relation
2015/5/21
A method suitable for indoor complex semantic query considering the computation of indoor spatial relations is provided According to the characteristics of indoor space. This paper designs ontology mo...
STOQL: AN ODMG-BASED SPATIO-TEMPORAL OBJECT MODEL AND QUERY LANGUAGE
STOQL SPATIO-TEMPORAL OBJECT MODEL QUERY LANGUAGE
2015/3/16
STOQL: AN ODMG-BASED SPATIO-TEMPORAL OBJECT MODEL AND QUERY LANGUAGE.
QUERY FUNCTIONALITY FOR 3D VISUAL DATABASES.
ON THE USE OF HIERARCHIES AND FEEDBACK FOR INTELLIGENT VIDEO QUERY SYSTEMS
HIERARCHIES FEEDBACK INTELLIGENT VIDEO QUERY SYSTEMS
2015/3/16
ON THE USE OF HIERARCHIES AND FEEDBACK FOR INTELLIGENT VIDEO QUERY SYSTEMS.
FUZZY BASED SPATIAL QUERY AND ANALYSIS IN AN URBAN INFORMATION SYSTEM
FUZZY BASED SPATIAL QUERY ANALYSIS URBAN INFORMATION SYSTEM
2015/3/16
FUZZY BASED SPATIAL QUERY AND ANALYSIS IN AN URBAN INFORMATION SYSTEM.