Ángel Alonso

AN INTELLIGENT TUTORING SYSTEM BASED ON A DOMAIN ONTOLOGY FOR THE DESIGN OF LEAD-LAG CONTROLLERS

Abstract The modeling of domains is today a technique with growing acceptance into the software community. Domain models allow the information to be represented in the computer at higher abstraction levels than in the usual applications, so improving the human to machine and machine to machine interactions. This paper deals with the application of such modeling paradigm to the control engineering education field, showing how the knowledge of this domain can be represented in a conceptual structure called ontology which is used as the base for building an Intelligent Tutoring System, a software tool used in the emerging field of e-learning.

Ontologies as knowledge representation structures for CACSD software

In the software building practice there is today a shift toward model based software development, rooted in the ideas coming from artificial intelligence and software engineering. The so-called domain ontologies are the conceptual structures where the knowledge models are represented. This paper shows the possibilities of the use of ontologies as the main components for computer-aided control system design applications. The paper shows how control engineering knowledge can be represented into an ontology and how this representation can be used inside a software application. An example is presented based on the development of an ontology and an application for the design of lead-lag controllers with techniques from the classical control theory.

An ontology-based expert system and interactive tool for computer-aided control engineering education

This paper shows the experience in the development of an ontology-based expert system for the field of control engineering education. The particular characteristics of the knowledge in this domain and some of the conceptualization strategies used are shown. Also the prototype expert system built is described, showing how the ontology-based nature of the software supposes a benefit for people learning design techniques in the field of control engineering.

Knowledge Based Expert System for PID Controller Tuning under Hazardous Operating Conditions

The goal of this document is the exposition of a conceptual model developed and implemented like knowledge based expert system for a PID control of industrial process, when a system operates under hazardous conditions. Thanks to features of PID regulators and the expert system implemented, it is possible to stabilize a dangerous industrial process quickly if the adequate parameters of the PID regulator are calculated in a reasonable time. In this way the system can work without danger, when the communication with the plant has been lost without requiring the intervention of a human operator.

Distributed knowledge-based computer-aided control education environment

Abstract ONTO-Cele is a knowledge-based educational software for control engineering that solves and presents to the student the process for controller design with the root locus method. This software generates a huge amount of data by firing rules against the problem data and storing it in a knowledge base that is later used to feed a graphical user interface to interact with the student. The software is computation intensive and its execution time can be reduced by making it work in a distributed architecture, in such a way that some of the rules are executed concurrently. The paper shows a solution based on the use of a multi-agent paradigm, giving details about its implementation and presenting the results obtained.

A web-based multi-agent system approach to document engineering

Document engineering is the automatic or semiautomatic process that assists a documental department of a company in the gathering, storing, retrieving and generation of articles and documents, and also in the distribution of these documents. A web-based multi-agent system was chosen as the best approach to build such a system, providing a flexible and scalable solution that not only automates but also improves the initial manual work. Several artificial intelligence techniques were studied and developed. This paper describes the solution designed, the text document classifier, the query subsystem, the automatic document generation subsystem and the web interfaces.

Knowledge Representation for Control Engineering

Abstract The use of computers in the control engineering domain is not as fruitful as it could be. Computers should be much more than machines performing fast numerical calculations, aiming to represent the expertise and the knowledge of the human that are experts in the domain. Knowledge engineering and knowledge representation are the scientific areas that describe ways in which human knowledge may be represented in computer systems (the so called knowledge-based systems). This paper justifies the need for building these kind of systems for control engineering, describing how can the process of building such systems be done.

Applying knowledge engineering techniques in control engineering education

Abstract The future of control engineering education will require the detailed and careful analysis of both the curricula and the methods involved in the learning process. This paper deals with the two key elements that are going to mean a revolution in the educational field: the computer and the Internet. Considering the education as a knowledge transfer process, the natural choice for formally studying the applications of computers to this process is the so-called knowledge engineering. If education is going to take advantage of the Internet, the necessity for constructing new, knowledge-intensive systems for collaborative work will also be shown.

AN APPROACH TO DOCUMENT ENGINEERING AT FUNDACIÓN HULLERA VASCO-LEONESA

Abstract Fundacion Hullera Vasco-Leonesa is a company with a documental department responsible for managing the bibliographic information the company uses. That department manually elaborates and distributes periodic documents (press bulletins, environmental dossiers, etc). This paper describes an intelligent multiagent system as a way to solve the work handled by this department. The objective was to design and implement a digital library with all the tasks needed, like query management, automatic design and generation of electronic documents, selective information distribution, etc.