En este artículo se presenta un sistema de aprendizaje supervisado para la desambiguación del sentido de las palabras. Dicho sistema se basa en los modelos de probabilidad condicional de máxima entropía. El conocimiento lingüístico se adquiere a partir de un…

This is a reprint of page proofs of Chapter 12 of Perceptrons, M. Minsky and S. Papert, MIT Press 1968, (we hope). It replaces A.I. Memo No. 156 dated March 1968. The perceptron and convergence theorems of Chapter 11 are…

The program described here takes as its input a collection of lines, vertices and surfaces describing a scene, and analyzes the scene into a composition of three-dimensional objects. The program does not need to know the form (model, or pattern)…

This memo describes PROGRAMMER, a parser for natural language. It consists of a language for writing grammars in the form of programs, and an interpreter which can use these grammars to parse sentence. PROGRAMMER is one part of an integrated…

The small LDCs which own the great bulk of oil resour-
ces are rational agents and calculate with short horizons and
high discount rates. They have pre-commitments to spend much (or
even more than all) of their…

This paper presents the main
characteristics of an Agent-based Architecture
for the design and implementation
of a Spoken Dialogue System. From
a theoretical point of view, the system is
based on the Information State Update
approach, in particular, the system…

The complexity and variety of possible behaviours of the quaternary liquid-liquid, liquid-liquid-solid equilibrium at constant temperature and pressure and the ternary isobaric or isothermal liquid-liquid-vapor equilibria are very high and, sometimes, the phase equilibria diagrams appear incomplete and not clearly…

We discuss the convenience of an early introduction of undergraduate students to the reading of scientific papers, mostly divulgative or historical. This can encourage them to deeper readings and to search and discover in the scientific writings new sources of…

This paper surveys the problems of identity in a number of Shakespeare’s plays, such as The Taming of the Shrew, The Comedy of Errors, As You Like It, Twelfth Night, The Merchant of Venice, Romeo and Juliet, Hamlet, and Othello.…

Knowledge about fresh water bodies biology in the State of Tlaxcala, Mexico, has become of relevant importance in order to diagnosticate possibilities about natural aquatic renewable resources management for an optimum exploitation. For first ocassion, Apizaquito Reservoir in the State,…