Context-freeness Revisited
نویسنده
چکیده
A series of papers have appeared investigating the ability of various species to learn context-free languages. From a computational point of view, the experiments in this tradition suffer from a number of problems concerning the stimuli used in the training phase of the experiments, the controls presented in the test phase of the experiments, and the motivation for and the conclusions drawn from the experiments. This paper discusses in some detail the problems with the existing work in this domain before presenting a new design for this type of experiments that avoids the problems identified in existing studies. Finally, the paper presents results from a small study demonstrating the benefits of the new design.
منابع مشابه
Vote buying revisited: implications for receipt-freeness
In this paper, we analyse the concept of vote buying based on examples that try to stretch the meaning of the concept. Which examples can still be called vote buying, and which cannot? We propose several dimensions that are relevant to qualifying an action as vote buying or not. As a means of protection against vote buying and coercion, the concept of receipt-freeness has been proposed. We argu...
متن کاملDistributed Property Testing for Subgraph-Freeness Revisited
In the subgraph-freeness problem, we are given a constant-size graph H, and wish to determine whether the network contains H as a subgraph or not. The property-testing relaxation of the problem only requires us to distinguish graphs that are H-free from graphs that are -far from H-free, in the sense that an -fraction of their edges must be removed to obtain an H-free graph. Recently, Censor-Hil...
متن کاملMetadiscourse Markers Revisited in EFL Context: The Case of Iranian Academic Learners’ Perception of Written Texts
Moving in line with the postulation that metadiscourse (MD) markers help transform a dry and tortuous piece of text into a coherent and reader-friendly one, the researchers in the current study attempted to investigate the effect different metadiscourse markers might have on Iranian EFL learners’ perception of written texts. To this end, 120 undergraduate English students were given three diffe...
متن کاملShare Free Revisited
Analyses for possible variable sharing and de nite freeness are important both in the automatic parallelisation and in the optimisation of sequential logic programs In this paper a new e cient approach to analysis is described which can infer sharing and freeness information to an unusually high degree of accuracy The analysis exploits a con uence property of the uni cation algorithm to split t...
متن کاملIranian EFL Learners’ Motivation Construction: Integrative Motivation Revisited
Although Gardner and his associates’ work was most influential in the field of L2 motivation, from the early 1990s onwards, their work has been criticized for several reasons. Some researchers claimed that integrative and instrumental orientations were no longer able to convey the complexity of the L2 motivation construct. To examine this complexity, the present study attempted to investigate t...
متن کامل