although the majority of linguists believing in chomskyan revolution have no doubt about the presence of ug in ll acquisition, its availability in l2 acquisition _in general, and in adult l2 acquisition in particular, is controversial. on the one hand, there are proponents of the access to ug in l2 acquisition, lidia white for example, says: therange of option available to the second language l...

In this paper we describe the encoding of a Unification-Based Generalised Categorial Grammar for English, in terms of a default inheritance network of types, implemented with YADU, which is an order independent default unification operation on typed feature structures. We then propose to use this framework to encode a Universal Grammar (UG) and associated parameters, following the Principles an...

Many statistical problems involve the learning of an importance/effect of a variable for predicting an outcome of interest based on observing a sample of n independent and identically distributed observations on a list of input variables and an outcome. For example, though prediction/machine learning is, in principle, concerned with learning the optimal unknown mapping from input variables to a...

One of the key challenges in robotic bipedal locomotion is finding gait parameters that optimize a desired performance metric, such as robustness or energy efficiency. Typically, gait optimization requires extensive robot experiments and specific expert knowledge. Instead, we propose to apply data-driven machine learning to automate and speed up the process of gait optimization. In particular, ...

We consider the case of age-specific ring-recovery data obtained only from recovered individual birds and modelled by conditioning a multinomial distribution on the recovery. These models may be appealing when the information about the numbers of marked individuals is missing but they are often analysed by ignoring a large set of nuisance parameters, the recovery rates. We investigate what are ...

This paper presents a Petri net (PN) analysis technique which extend the analysis capabilities of T-invariants. This technique is based on the conversion of the PN into formulas of linear logic and on the introduction of the marking into P-invariants. It allows to test if T-invariants are pertinent related to the application's constraints of marking. Our technique determines for each valid sequ...

In order to solve the language acquisition puzzle there are two basic problems one needs to address . The first is the so-called "logical problem of language acquisition" and the second is what I will refer to as the "developmental problem of language acquisition." The logical problem of language acquisition is the question, no doubt familiar to you all, of how we account for the richness, comp...

In the domain of vineyard precision spraying research, one of the most important objectives is to minimize the volume of phytosanitary products ejected by a sprayer in order to be more environmentally respectful with more effective vine leaf treatments. Unfortunaltely, even if lot of works have been carried out at a parcel scale, mainly on losses caused by drift, less works have been carried ou...