A fuzzy petri net model for intelligent databases

Download
2005
Bostan, Burçin
Knowledge intensive applications require an intelligent environment, which can perform deductions in response to user queries or events that occur inside or outside of the applications. For that, we propose a Fuzzy Petri Net (FPN) model to represent the knowledge and the behavior in an intelligent object-oriented database environment, which integrates fuzzy, active and deductive rules with database objects. By gaining intelligent behaviour, the system maintains objects to perceive dynamic occurences and user queries. Thus, objects can produce new knowledge or keep themselves in a consistent, stable, and upto-date state. The behavior of a system can be unpredictable due to the rules triggering or untriggering each other (non-termination). Intermediate and final database states may also differ according to the order of rule executions (non-confluence). In order to foresee and solve problematic behavior patterns, we employ static rule analysis on the FPN structure that provides easy checking of the termination property without requiring any extra construct. In addition, with our proposed inference algorithm, we guarantee confluent rule executions. The techniques and solutions provided in this study can be utilized in various complex systems, such as weather forecasting applications, environmental information systems, defense applications, video database applications, etc. We implement a prototype of the model for the weather forecasting of the Central Anatolia Region

Suggestions

A fuzzy Petri net model for intelligent databases
Bostan-Korpeoglu, Burcin; Yazıcı, Adnan (Elsevier BV, 2007-08-01)
Knowledge intensive applications require an intelligent environment, which can perform deductions in response to user queries or events that occur inside or outside of the applications. For that, we propose a fuzzy Petri net (FPN) model to represent knowledge and the behavior of an intelligent object-oriented database environment, which integrates fuzzy, active and deductive rules with database objects. The behavior of a system can be unpredictable due to the rules triggering or untriggering each other (non...
An intelligent fuzzy object-oriented database framework for video database applications
Özgür, Nezihe Burcu; Yazıcı, Adnan; Department of Computer Engineering (2007)
Video database applications call for flexible and powerful modeling and querying facilities, which require an integration or interaction between database and knowledge base technologies. It is also necessary for many real life video database applications to incorporate uncertainty, which naturally occurs due to the complex and subjective semantic content of video data. In this thesis study, firstly, a fuzzy conceptual data model is introduced to represent the semantic content of video data. UML (Unified Mod...
A certificate based authentication control model using smart mobile devices for ubiquitous computing environments
Çavdar, Davut; Eren, Pekin Erhan; Department of Information Systems (2011)
In this thesis work, a certificate based authentication model supported by mobile devices is provided for ubiquitous computing environments. The model primarily aims to create an infrastructure for controlling and regulating access requests through mobile devices to local resources and services. The model also allows users from different domains to use local resources and services within the scope of agreements between domains. In addition to conceptual description of the model, a real prototype implementat...
An Automated defect detection approach for cosmic functional size measurement
Yılmaz, Gökçen; Demirörs, Onur; Department of Information Systems (2012)
Software size measurement provides a basis for software project management and plays an important role for its activities such as project management estimations, process benchmarking, and quality control. As size can be measured with functional size measurement (FSM) methods in the early phases of the software projects, functionality is one of the most frequently used metric. On the other hand, FSMs are being criticized by being subjective. The main aim of this thesis is increasing the accuracy of the measu...
A gis domain framework utilizing jar libraries as components
Ödoğru, Ebru; Doğru, Ali Hikmet; Department of Computer Engineering (2005)
A Component Oriented Software Engineering (COSE) modeling environment is enhanced with the capability to import executable components and deliver applications through their composition. For this purpose, an interface layer that utilizes JAR libraries as components has been developed. Also, Domain Engineering process has been applied to Geographical Information Systems (GIS) domain and utilized towards converting the environment to a development framework. The interface layer imports JAR libraries into the C...
Citation Formats
B. Bostan, “A fuzzy petri net model for intelligent databases,” Ph.D. - Doctoral Program, Middle East Technical University, 2005.