Results 31 to 40 of about 459,743 (229)

Efficient Continuous Subgraph Matching Scheme Based on Trie Indexing for Graph Stream Processing

open access: yesApplied Sciences, 2023
With the expansion of the application range of big data and artificial intelligence technologies, graph data have been increasingly used to analyze the relationships among objects.
Dojin Choi   +6 more
doaj   +1 more source

k-step Reachability Query Processing on Label-constrained Graph [PDF]

open access: yesJisuanji kexue, 2022
The k-step reachability query processing on label-constrained graph is used to answer whether there is a path with a length not greater than k between two points and the labels on this path are in the specified label set.The k-step reachability query ...
DU Ming, XING Rui-ping, ZHOU Jun-feng, TAN Yu-ting
doaj   +1 more source

Design and Implementation of Spatial Operators and Energy-Efficient Query Processing Strategy in Wireless Sensor Network Database System

open access: yesInternational Journal of Distributed Sensor Networks, 2015
Database applications in wireless sensor networks very often demand data collection from sensor nodes of specific target regions. Design and development of spatial query expressions and energy-efficient query processing strategy are important issues for ...
Chong sok Lim   +3 more
doaj   +1 more source

Query management in a sensor environment [PDF]

open access: yes, 2008
Traditional sensor network deployments consisted of fixed infrastructures and were relatively small in size. More and more, we see the deployment of ad-hoc sensor networks with heterogeneous devices on a larger scale, posing new challenges for device ...
Andrieu, Vincent   +2 more
core   +1 more source

Interactive Multiple-User Location-Based Keyword Queries on Road Networks

open access: yesIEEE Access, 2018
As the use of smart mobile devices increases, users can connect and coordinate with local people or events that match their interests through geosocial networking applications.
Yong Wang   +4 more
doaj   +1 more source

Introduction to Query Processing [PDF]

open access: yes, 1985
Query processing in databases can be divided into two steps: selecting an ‘optimal’ evaluation strategy, and executing it. We first present elementary nested loop and relational algebra algorithms for query execution and point out some opportunities for improving their performance. A survey of optimization strategies, structured in query transformation
Jarke, Matthias   +2 more
openaire   +2 more sources

Process Querying in Apromore

open access: yes, 2015
This paper demonstrates the integration and usage of Process Query Language (PQL), a special-purpose programming language for querying large collections of process models based on process model behavior, in the Apromore open-source process model repository.
Artem Polyvyanyy   +5 more
openaire   +2 more sources

Process querying: Enabling business intelligence through query-based process analytics [PDF]

open access: yesDecision Support Systems, 2017
The volume of process-related data is growing rapidly: more and more business operations are being supported and monitored by information systems. Industry 4.0 and the corresponding industrial Internet of Things are about to generate new waves of process-related data, next to the abundance of event data already present in enterprise systems.
Chun Ouyang   +4 more
openaire   +4 more sources

Hybrid Ant Algorithm Based Query Processing with Multiagents in Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2013
The wireless sensor networks are usually deployed in various application-specific contexts, which can be treated as distributed databases with big data. The event-involved query responses can be obtained by issuing query requests to this kind of database.
Jianping Yu   +3 more
doaj   +1 more source

Group Tracking for Video Monitoring Systems: A Spatio-Temporal Query Processing Approach

open access: yesIEEE Access, 2023
Recently, many video monitoring systems utilize deep learning technologies to recognize locations and trajectories of people in video data. In video monitoring systems, a fast discovery of human groups is an important task for several applications, for ...
Hyunsik Yoon, Dalsu Choi, Yon Dohn Chung
doaj   +1 more source

Home - About - Disclaimer - Privacy