AGENT BASED DATA STORAGE AND DISTRIBUTION IN DATA WAREHOUSES

2008 ◽  
Vol 18 (05) ◽  
pp. 597-617 ◽  
Author(s):  
NADER KOLSI ◽  
ABDELAZIZ ABDELLATIF ◽  
KHALED GHEDIRA
Keyword(s):  
Data Warehouse ◽  
Data Storage ◽  
Data Distribution ◽  
Distributed Data ◽  
Agent Based ◽  
Agent Model ◽  
Capacity Limit ◽  
Processing Resources ◽  
Multi Agent ◽  
Distributed Data Warehouse

The data warehouse (DWH) is usually presented as a centralized database. In this paper, we propose a new approach to manage data storage and distribution in a data warehouse environment. This approach deals with the dynamic data distribution of the DWH on a set of servers. The data distribution that we consider is different from the "classical" one which depends on the data use. The distribution in our approach consists in distributing data when the server reaches its storage capacity limit. This distribution assures the scalability and exploits the storage and processing resources available in the organization using the data warehouse. It is worth noting that our approach is based on a multi-agent model mixed with the scalability distribution proposed by the Scalable Distributed Data Structures. The proposed multi-agent model is composed of stationary agent classes: Client, Dispatcher, Domain and Server, and a mobile agent class called Messenger. These agents collaborate and interact to achieve automatically the storage, the splitting (distribution), the redirection and the access operations on the distributed data warehouse. In this paper, we demonstrate the improvements obtained when we have used the multi-agent system and the Messenger agents in the data storage operation.

scholarly journals A Novel Multi-Agent Model for Robustness with Component Failure and Malware Propagation in Wireless Sensor Networks

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4873
Author(s):  
Biao Xu ◽  
Minyan Lu ◽  
Hong Zhang ◽  
Cong Pan
Keyword(s):  
Wireless Sensor ◽  
Component Reliability ◽  
Agent Based ◽  
Agent Model ◽  
Cross Domain ◽  
Malware Propagation ◽  
Network Topologies ◽  
Multi Agent ◽  
Agent Characteristics ◽  
Information Domain

A wireless sensor network (WSN) is a group of sensors connected with a wireless communications infrastructure designed to monitor and send collected data to the primary server. The WSN is the cornerstone of the Internet of Things (IoT) and Industry 4.0. Robustness is an essential characteristic of WSN that enables reliable functionalities to end customers. However, existing approaches primarily focus on component reliability and malware propagation, while the robustness and security of cascading failures between the physical domain and the information domain are usually ignored. This paper proposes a cross-domain agent-based model to analyze the connectivity robustness of a system in the malware propagation process. The agent characteristics and transition rules are also described in detail. To verify the practicality of the model, three scenarios based on different network topologies are proposed. Finally, the robustness of the scenarios and the topologies are discussed.

Research on Fault Diagnosis for Power Transmission Based on Mass Data Mining

2012 ◽  
Vol 271-272 ◽  
pp. 1623-1627
Author(s):  
Xiao Yan Sun ◽  
Long Li ◽  
Ping Ping Liu
Keyword(s):  
Fault Diagnosis ◽  
Data Warehouse ◽  
Power Transmission ◽  
Agent Technology ◽  
Agent Based ◽  
Intelligent Decision ◽  
Decision Supporting ◽  
Decision Supporting System ◽  
Multi Agent ◽  
Fault Diagnosis System

A Multi-Agent based transmission fault diagnosis system is researched in this paper. Many data digging analysis methods are employed, combined with data warehouse, OLAP and Multi-Agent technology. An intelligent decision supporting system for monitoring transmission network data is built. Data digging method is used to intelligently analyze and process fault data in the data warehouse, and Agent technology is used to realize data collection, pretreatment, inquiry, knowledge Automatic extraction, mining and other functions, which makes the whole mining process intellectual and intelligent. It aids transmission management with decision-making, thus to make the monitoring and repair of power grid fault more timely and accurate.

A Study on the Agent-Based Vehicles Dispatching Optimization at Container Terminals

2012 ◽  
Vol 241-244 ◽  
pp. 1745-1750
Author(s):  
Nan Nan Yan ◽  
Di Zheng
Keyword(s):  
Decision Support ◽  
Analytic Hierarchy Process ◽  
Container Terminal ◽  
Container Terminals ◽  
Analytic Hierarchy ◽  
Agent Based ◽  
Agent Model ◽  
Contract Net ◽  
Multi Agent ◽  
Hierarchy Process

This paper mainly concentrated on the method of improving the dispatching trucks working at a container terminal and built the multi-agent model for the dispatching job. The contract net protocol was taken as the communication ones among agents, and the analytic hierarchy process was also applied for the decision support for container trucks dispatching.

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