Publicaties
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French second language learners' acquisition of the sequence aller plus infinitive: Movement, aspect and tense Vrije Universiteit Brussel
This article reports on the development of a particular TAM (tense, aspect, modality) sequence in L2 French (FL2): aller+infinitive. Studies of the acquisition of FL2 regularly point to the frequency of the structure “aller+ infinitive” in the learners’ interlanguage from a relatively early acquisitional stage onwards. The sequence in question is nonetheless often too readily iden- tified with the futur périphrastique or futur proche, which ...
Cognitive perspectives on Difficulty and Complexity in L2 Acquisition Vrije Universiteit Brussel
The theme that runs through the contributions to this special issue is diffi culty , an important yet challenging theme in second language acquisi-tion (SLA) that, after the demise of the contrastive analysis hypothesis (e.g., Stockwell, Bowen, & Martin, 1965), has only been latent in second language (L2) research; however, it has been attracting renewed and more explicit interest in the wake of the recent surge of research on language ...
Ecosystem responses to elevated $CO_{2}$ governed by plantsoil interactions and the cost of nitrogen acquisition Universiteit Antwerpen
Land ecosystems sequester on average about a quarter of anthropogenic CO2 emissions. It has been proposed that nitrogen (N) availability will exert an increasingly limiting effect on plants ability to store additional carbon (C) under rising CO2, but these mechanisms are not well understood. Here, we review findings from elevated CO2 experiments using a plant economics framework, highlighting how ecosystem responses to elevated CO2 may depend on ...
Evaluation of the accuracy of photogrammetry for head-related transfer functions acquisition using numerical methods KU Leuven
The use of photogrammetry to create meshes suitable for deterministic numerical methods is thought to be a promising approach for individual Head-Related Transfer Functions (HRTFs) ac-quisition. The validity of this HRTFs extraction technique is discussed in this paper. Photogram-metric methods are employed to reconstruct the shape of a Neumann KU100 dummy head from a set of pictures captured with a consumer-grade digital camera. The accuracy of ...
Rate-distortion trade-offs in acquisition of signal parameters Vrije Universiteit Brussel
We consider problems where one wishes to represent a parameter associated
with a signal source – subject to a certain rate and distortion
– based on the observation of a number of realizations of the source
signal. By reducing these indirect vector quantization problems to
a standard vector quantization one, we provide a bound to the fundamental
interplay between the rate and distortion in the large-rate
setting. We ...
with a signal source – subject to a certain rate and distortion
– based on the observation of a number of realizations of the source
signal. By reducing these indirect vector quantization problems to
a standard vector quantization one, we provide a bound to the fundamental
interplay between the rate and distortion in the large-rate
setting. We ...
Processability theory and German case acquisition Universiteit Gent
A joint model of word segmentation and meaning acquisition through cross-situational learning Vrije Universiteit Brussel
Human infants learn meanings for spoken words in complex interactions with other people, but the exact learning mechanisms are unknown. Among researchers, a widely studied learning mechanism is called cross-situational learning (XSL). In XSL, word meanings are learned when learners accumulate statistical information between spoken words and co-occurring objects or events, allowing the learner to overcome referential uncertainty after having ...
The acquisition of the German case system by foreign language learners Universiteit Gent
This is the first book on the acquisition of the German case system by foreign language learners. It explores how learners in their interlanguage progress from the total absence to the presence of a case system. This development is characterized by an evolvement from marking the argument’s position to marking the argument’s actual function. Theoretically couched within Processability Theory, the book deals with the feature unification and the ...
Virtual infant's online acquisition of vowel categories and their mapping between dissimilar bodies Vrije Universiteit Brussel
In order to understand how humans learn speech imitation without access to detailed articulatory data of other talkers, simulated speech acquisition experiments between two virtual agents were carried out with the goal of maintaining the inter- action between the two as natural as possible. As an outcome, a novel model of infants' vowel acquisition is presented. In the experimental setup, a virtual infant learns vowels in interaction with a ...