scholarly journals An Object-Oriented Modeling and Implementation of Spatio-Temporal Knowledge Discovery System

2011 ◽  
Vol 3 (2) ◽  
pp. 61-76 ◽  
Author(s):  
K Venkateswara Rao ◽  
A Govardhan ◽  
K.V Chalapati Rao
Keyword(s):  
Knowledge Discovery ◽  
Object Oriented ◽  
Discovery System ◽  
Temporal Knowledge Discovery ◽  
Spatio Temporal

Vessel Spatio-temporal Knowledge Discovery with AIS Trajectories Using Co-clustering

2017 ◽  
Vol 70 (6) ◽  
pp. 1383-1400 ◽  
Author(s):  
Jiang Wang ◽  
Cheng Zhu ◽  
Yun Zhou ◽  
Weiming Zhang
Keyword(s):  
Knowledge Discovery ◽  
Situational Awareness ◽  
Automatic Identification ◽  
Identification System ◽  
Mobility Patterns ◽  
Multidimensional Arrays ◽  
Temporal Knowledge Discovery ◽  
Spatio Temporal ◽  
Vessel Motion ◽  
Occurrence Patterns

Large volumes of data collected by the Automatic Identification System (AIS) provide opportunities for studying both single vessel motion behaviours and collective mobility patterns on the sea. Understanding these behaviours or patterns is of great importance to maritime situational awareness applications. In this paper, we leveraged AIS trajectories to discover vessel spatio-temporal co-occurrence patterns, which distinguish vessel behaviours simultaneously in terms of space, time and other dimensions (such as ship type, speed, width etc.). To this end, available AIS data were processed to generate spatio-temporal matrices and spatio-temporal tensors (i.e., multidimensional arrays). We then imposed a sparse bilinear decomposition on the matrices and a sparse multi-linear decomposition on the tensors. Experimental results on a real-world dataset demonstrated the effectiveness of this methodology, with which we show the existence of connection among regions, time, and vessel attributes.

Statistical counterpoint: Knowledge discovery of choreographic information using spatio-temporal analysis and visualization

2010 ◽  
Vol 30 (4) ◽  
pp. 548-560 ◽  
Author(s):  
Ola Ahlqvist ◽  
Hyowon Ban ◽  
Noel Cressie ◽  
Norah Zuniga Shaw
Keyword(s):  
Knowledge Discovery ◽  
Temporal Analysis ◽  
Spatio Temporal

DOOD'95 Post-Conference Workshop on Temporal Reasoning in Deductive and Object-Oriented Databases

1996 ◽  
Vol 11 (2) ◽  
pp. 191-192 ◽  
Author(s):  
Stefan Conrad
Keyword(s):  
Knowledge Discovery ◽  
Object Oriented ◽  
Temporal Reasoning ◽  
International Conference ◽  
First Time ◽  
Object Oriented Databases

For the first time, post-conference workshops were organised for the International Conference on Deductive and Object-Oriented Databases (DOOD). There were two workshops focusing on knowledge discovery and temporal reasoning. This report is dedicated to one dealing with temporal reasoning.

Study of the Spatio-Temporal Data Model in Sea Battlefield

2012 ◽  
Vol 246-247 ◽  
pp. 744-748
Author(s):  
Yue Lin Sun ◽  
Lei Bao ◽  
Yi Hang Peng
Keyword(s):  
Data Model ◽  
Object Oriented ◽  
Space Time ◽  
Comprehensive Analysis ◽  
Temporal Data ◽  
Data Types ◽  
Spatio Temporal ◽  
The Right ◽  
Effective Analysis

An effective analysis of the battlefield situation and spatio-temporal data model in a sea battlefield has great significance for the commander to perceive the battlefield situation and to make the right decisions. Based on the existing spatio-temporal data model, the present paper gives a comprehensive analysis of the characteristics of sea battlefield data, and chooses the object-oriented spatio-temporal data model to modify it; at the same time this paper introduces sea battlefield space-time algebra system to define various data types formally, which lays the foundation for the establishment of the sea battlefield spatio-temporal data model.

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