A Linear Referencing System Data Model for GIS-T

2000 ◽  
Author(s):  
Xiaohua Tong ◽  
Dongyuan Yang
Keyword(s):  
Data Model ◽  
System Data ◽  
Linear Referencing System

scholarly journals Initial database creation for scientific and technical solutions efficiency assessment based on artificial intelligence approach

2019 ◽  
Vol 24 ◽  
pp. 03002
Author(s):  
Alexandra Khalyasmaa ◽  
Elena Zinovieva ◽  
Stanislav Eroshenko ◽  
Daria Shatunova
Keyword(s):  
Mathematical Modeling ◽  
Artificial Intelligence ◽  
Teaching Methods ◽  
Data Model ◽  
Intelligent Systems ◽  
Efficiency Assessment ◽  
System Data ◽  
Technical Solutions ◽  
Intelligence Approach ◽  
Artificial Intelligence Approach

This paper is devoted to the problems and features of database creation in intelligent systems for assessing the efficiency of scientific and technical solutions. The system data model developed by the authors and the principles of its operation are described. This paper also considers the process of training sampling and the analysis of various teaching methods for solving the presented problem. The implementation of the developed model is made using mathematical modeling. The initial data was the data of applications for grants in the field of technical sciences related to the fuel and energy complex.

Object-Oriented Geographic Information System Data Model for Transit Trip-Planning Systems

2002 ◽  
Vol 1804 (1) ◽  
pp. 205-211 ◽  
Author(s):  
Ruihong Huang ◽  
Zhong-Ren Peng
Keyword(s):  
Data Model ◽  
Object Oriented ◽  
Planning Systems ◽  
Dynamic Nature ◽  
Trip Planning ◽  
Transit Systems ◽  
Transit Network ◽  
Network Search ◽  
System Data ◽  
Geographic Information System Data

Efficiency is essential to Internet transit trip-planning systems. High-quality data models of transit networks hold the key to efficiency of data querying and network analysis. Because of the schedule control and dynamic nature of the transit network, highway-based generic network models cannot be directly implemented by transit systems. In the process of developing an Internet transit trip-planning system, an object-oriented geographic information system data model, which handles the dynamic nature of transit systems, was developed. In this data model, the entire transit network and its components are modeled as space–time entities (objects) that have start times, end times, and spans of lifetime. A time map object controls the creation and destruction of these objects. Therefore, in the process of network search, only active components of the system (i.e., with transit services available) are built into the network topology. This has greatly reduced data redundancy and enhanced network search efficiency. The data model showed good performance when it was implemented in an online trip-planning service for Waukesha Metro Transit, Wisconsin.

The Method Creating UML Model about Heat Pipe Network Data

2015 ◽  
Vol 713-715 ◽  
pp. 2511-2514
Author(s):  
Hai Feng Wu ◽  
Lin Ping Li ◽  
Jin Ming Yang
Keyword(s):  
Data Structure ◽  
Data Model ◽  
Use Case ◽  
Structure Model ◽  
Pipe Network ◽  
Static Structure ◽  
Modeling Tools ◽  
Application System ◽  
Pipe Networks ◽  
System Data

The UML model of database is a frame foundation of developing a database, this paper recommends a way to build data model based on the urban heating pipe networks by using VISIO[1] modeling tools. There are two ways that Use Case Diagram and Static Structure Diagram. The article describes the function of database application system, data structure and relationship on the heating-pipe network. The data structure model makes it more clear and lower redundancy when the developers are developing an application system of database.

System Data Model (SDM) Source Code

2012 ◽  
Author(s):  
James C. Lyke ◽  
Josette Calixte-Rosengren
Keyword(s):  
Data Model ◽  
Source Code ◽  
System Data
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