scholarly journals Two for the price of one: Concurrent learning of words and phonotactic regularities from continuous speech

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253039
Author(s):  
Viridiana L. Benitez ◽  
Jenny R. Saffran
Keyword(s):  
Language Learners ◽  
Test Procedure ◽  
Continuous Speech ◽  
Levels Of Abstraction ◽  
Concurrent Learning ◽  
Speech Stream ◽  
Level Information ◽  
Continuous Stream ◽  
Multiple Levels ◽  
The Individual

To acquire the words of their language, learners face the challenge of tracking regularities at multiple levels of abstraction from continuous speech. In the current study, we examined adults’ ability to track two types of regularities from a continuous artificial speech stream: the individual words in the speech stream (token level information), and a phonotactic pattern shared by a subset of those words (type level information). We additionally manipulated exposure time to the language to examine the relationship between the acquisition of these two regularities. Using a ratings test procedure, we found that adults can extract both the words in the language and their phonotactic patterns from continuous speech in as little as 3.5 minutes of listening time. Results from a 2AFC testing method provide converging evidence that adults rapidly learn both words and their phonotactic patterns. Together, the findings suggest that adults are capable of concurrently tracking regularities at multiple levels of abstraction from brief exposures to a continuous stream of speech.

Learning at Multiple Levels of Abstraction: The Case of Verb Argument Constructions

2007 ◽  
Author(s):  
Amy Perfors ◽  
Charles Kemp ◽  
Elizabeth Wonnacott ◽  
Joshua B. Tenenbaum
Keyword(s):  
Levels Of Abstraction ◽  
Multiple Levels

Translating ambiguous and nonambiguous Words in a foreign Language

2003 ◽  
Vol 139-140 ◽  
pp. 129-152
Author(s):  
Paul Bogaards ◽  
Elisabeth Van Der Linden ◽  
Lydius Nienhuis
Keyword(s):  
Foreign Language ◽  
University Students ◽  
Language Learners ◽  
Mother Tongue ◽  
Empirical Support ◽  
Lexical Ambiguity ◽  
Target Language ◽  
Bilingual Lexicon ◽  
The Individual

The research to be reported on in this paper was originally motivated by the finding that about 70% of the mistakes made by university students when translating from their mother tongue (Dutch) into their foreign language (French) were lexical in nature (NIENHUIS et al. 1989). This was partially confinned in the investigation described in NIENHUIS et al. (1993). A closer look at the individual errors suggested that many problems were caused by words with more than one meaning which each require different translations in the target language. In the research reported on in this paper, we checked our fmdings in the light of what is known about the structure of the bilingual lexicon and about the ways bilinguals have access to the elements of their two languages. On the basis of the model of the bilingual lexicon presented by KROLL & Sholl (1992) an adapted model is proposed for the processing of lexical ambiguity. This leads to a tentative schema of the mental activities that language learners have to perfonn when they are translating from their mother tongue into a foreign language, The second part of the paper describes two experiments we have carried out in order to find empirical support for such a schema. The last section of the paper contains a discussion of the results obtained as well as the conclusions that can be drawn.

scholarly journals Interpersonal Comparisons of the Good: Epistemic not Impossible

Utilitas ◽  
2015 ◽  
Vol 28 (3) ◽  
pp. 288-313 ◽  
Author(s):  
MATHEW COAKLEY
Keyword(s):  
Institutional Choice ◽  
Individual Level ◽  
Interpersonal Comparisons ◽  
Individual Good ◽  
Level Information ◽  
Action Policy ◽  
Social Mind ◽  
The Individual

To evaluate the overall good/welfare of any action, policy or institutional choice we need some way of comparing the benefits and losses to those affected: we need to make interpersonal comparisons of the good/welfare. Yet sceptics have worried either: (1) that such comparisons are impossible as they involve an impossible introspection across individuals, getting ‘into their minds’; (2) that they are indeterminate as individual-level information is compatible with a range of welfare numbers; or (3) that they are metaphysically mysterious as they assume the existence either of a social mind or of absolute levels of welfare when no such things exist. This article argues that such scepticism can potentially be addressed if we view the problem of interpersonal comparisons as fundamentally an epistemic problem – that is, as a problem of forming justified beliefs about the overall good based on evidence of the individual good.

scholarly journals A Model for Analysing the Collective Dynamic Behaviour and Characterising the Exploitation of Population-Based Algorithms

2014 ◽  
Vol 22 (1) ◽  
pp. 159-188 ◽  
Author(s):  
Mikdam Turkey ◽  
Riccardo Poli
Keyword(s):  
Population Dynamics ◽  
Dynamic Behaviour ◽  
Fitness Landscape ◽  
Population Based ◽  
Levels Of Abstraction ◽  
Collective Dynamic ◽  
Model Studies ◽  
Proposed Model ◽  
Wide Range ◽  
Multiple Levels

Several previous studies have focused on modelling and analysing the collective dynamic behaviour of population-based algorithms. However, an empirical approach for identifying and characterising such a behaviour is surprisingly lacking. In this paper, we present a new model to capture this collective behaviour, and to extract and quantify features associated with it. The proposed model studies the topological distribution of an algorithm's activity from both a genotypic and a phenotypic perspective, and represents population dynamics using multiple levels of abstraction. The model can have different instantiations. Here it has been implemented using a modified version of self-organising maps. These are used to represent and track the population motion in the fitness landscape as the algorithm operates on solving a problem. Based on this model, we developed a set of features that characterise the population's collective dynamic behaviour. By analysing them and revealing their dependency on fitness distributions, we were then able to define an indicator of the exploitation behaviour of an algorithm. This is an entropy-based measure that assesses the dependency on fitness distributions of different features of population dynamics. To test the proposed measures, evolutionary algorithms with different crossover operators, selection pressure levels and population handling techniques have been examined, which lead populations to exhibit a wide range of exploitation-exploration behaviours.

scholarly journals C2+-DaF-Lernende reflektieren über eine perfekte Sprachbeherrschung – ist diese vor dem Hintergrund der postulierten funktionalen Mehrsprachigkeit in Alltag und Beruf künftig noch gefragt?

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Monika Schumacher
Keyword(s):  
Foreign Language ◽  
Language Learning ◽  
Language Learners ◽  
Foreign Language Learning ◽  
Language Education ◽  
Foreign Language Education ◽  
Third Language ◽  
Learning And Teaching ◽  
The Individual ◽  
Oriented Approach

AbstractBy adopting “functional plurilingualism” – a recurring concept in its new curriculum, “Lehrplan 21” – Switzerland is pursuing new avenues in foreign language education. The term refers to a goal-oriented approach to foreign language learning and teaching in primary and secondary schools, and implies that barriers to communication can be overcome by exploiting the sum of the individual’s linguistic capacities. In future, language learners will be expected to build on the interrelatedness of languages instead of developing abilities in languages that they keep separate from one another. This view of foreign language education coincides with the recommendations of the Council of Europe’sHaving reached the highest level specified by the CEFR, some learners continue their studies, seeking to maintain or reinforce their competences or to address individual weaknesses. In this article, a group of C2+ learners of German as a foreign language reflect on their desire for linguistic perfection and the notion of “functional plurilingualism” against the background of their own biographies. These learners have a high awareness and knowledge of German (often their third language) and of the learning process, which allows them to make informative statements. The data was analysed qualitatively and subjective theories were reconstructed – an approach that took account both of the multiperspectivity of the topic and of the uniqueness of the individual cases.

Pattern Filtering for Detection of Neural Activity, with Examples from HVc Activity During Sleep in Zebra Finches

2003 ◽  
Vol 15 (10) ◽  
pp. 2307-2337 ◽  
Author(s):  
Zhiyi Chi ◽  
Peter L. Rauske ◽  
Daniel Margoliash
Keyword(s):  
Neural Coding ◽  
Point Processes ◽  
Statistical Significance ◽  
Test Procedure ◽  
Surrogate Data ◽  
Likelihood Ratios ◽  
Alignment Procedure ◽  
Auditory Evoked Response ◽  
The Individual ◽  
Spiking Activity

The detection of patterned spiking activity is important in the study of neural coding. A pattern filtering approach is developed for pattern detection under the framework of point processes, which offers flexibility in combining temporal details and firing rates. The detection combines multiple steps of filtering in a coarse-to-fine manner. Under some conditional Poisson assumptions on the spiking activity, each filtering step is equivalent to classifying by likelihood ratios all the data segments as targets or as background sequences. Unlike previous studies, where global surrogate data were used to evaluate the statistical significance of the detected patterns, a localizedp-test procedure is developed, which better accounts for firing modulation and nonstationarity in spiking activity. Common temporal structures of patterned activity are learned using an entropy-based alignment procedure, without relying on metrics or pair-wise alignment. Applications of pattern filtering to single, presumptive interneurons recorded in the nucleus HVc of zebra finch are illustrated. These demonstrate a match between the auditory-evoked response to playback of the individual bird's own song and spontaneous activity during sleep. Small temporal compression or expansion, or both, is required for optimal matching of spontaneous patterns to stimulus-evoked activity.

Sign in / Sign up

Export Citation Format

Share Document