This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are problematical for other systems. Particular attention is paid to problems of opaque…

This research will thoroughly document the experiences of a small number of 5th grade children in an elementary school computer laboratory, using LOGO, an advanced computer language designed for children. Four groups of four children will be taught a 10-week…

Workers and employees are increasingly exposed in the workplace to chemical compounds and substances that are potentially toxic; for most of these compounds, no information exist regarding effects on human health. As one of the main employment generation sources, Small…

ABSTRACT: Micronutrients availability is na important constraint for crops in the Cerrado region, and its correction is always needed to obtaining economic yields. Old and new nutritional problems came with the agriculture expansion in Cerrado. Although being crucial for increasing…

2008

Décadas de uso inadecuado
de los recursos naturales en Australia han llevado a la extinción de numerosas especies autóctonas. Aprendiendo de sus propios errores,
se han inicido recientemente diferentes proyectos de conservación en los que participan diversos agentes interesados. La…

En este artículo se presenta un sistema automático de categorización
de texto multi-etiqueta que hace uso del metatesauro UMLS (Unified Medical Language
System). El sistema ha sido probado sobre un corpus biomédico que incluye
textos muy cortos pertenecientes a expedientes…

Se presentan los aspectos técnicos, científicos y culturales más sobresalientes desarrollados desde el año 2001 en relación con las investigaciones del Proyecto Fonelas. Esta investigación tiene su eje en el conocimiento integral de los registros del yacimiento de grandes mamíferos…

In this work we analyze the problem of knowledge representation in a collaborative multi-agent system where agents can obtain new information from others through communication. Namely, we analyze several approaches of belief revision in multi-agent systems. We will describe different…

Four teachers & their eight classes of 179 5th-grade (10-11-year-old) students participated in this quasi-experimental classroom study, which investigated the effects of form-focused instruction (FFI) & corrective feedback on immersion students' ability to accurately assign grammatical gender in French. The…