OPIL, a computer expert knowledge base for organic farming

Expert System Validation through Knowledge Base Refinement

Knowledge base (KB) refinement is a suitable technique to support expert system (ES) validation. When used for validation, KB refinement should be guided not only by the number of errors to solve but also by the importance of those errors. Most serious errors should be solved first, even causing other errors of lower importance but assuring a neat validity gain. These are the bases for IMPROVER...

Fuzzy Expert Control Systems: Knowledge Base Validation

A Knowledge Management System for Exchanging and Creating Knowledge in Organic Farming

Agriculture must evolve into a more environmentally-friendly approach while remaining economically workable. This type of agriculture is said to be sustainable. It has a systemic logic and therefore requires a strong knowledge base. In this study we propose a knowledge management IT-based system. In the first part of our article, we discuss the potential actors of the system and their possible ...

Checking an Expert Systems Knowledge Base for Consistency and Completeness

In t h i s paper we desor ibe a program t h a t v e r i f i e s t he oons is tenoy and completeness of exper t system knowledge bases whioh u t i l i z e t he Lookheed Expert System (LES) framework. The a l g o r i t h m s desor ibed here are not s p e c i f i c to LES and oan be a p p l i e d to most r u l e -based systems. The program, o a l l e d CHECK, combines l o g i o a l p r i n c i p l...

A Fresh Start for Organic Farming Research

Over the past few decades the area of farmland under organic management has significantly and continuously increased [1]. This trend, observed across all continents, has been accompanied by a strong expansion of the market for organically produced goods, and a substantial increase of organic farming research efforts, funded through national and international programmes. At the same time, with t...