4,246 research outputs found
Adjective Syntax and (the absence of) noun raising in the DP
No full textThe paper is structured as follows. Section 2.1 introduces the basic classes of adjectives that constitute the factual core of the paper. Section 2.2 summarizes in greater detail the X° and the XP movement approaches to word order variation within the DP. Section 3 briefly discusses problems for both approaches. Sections 4.1, 5.1, and 5.2 draw from Alexiadou (2001) and contain a discussion of Greek DS and its relevance for a re-analysis of the word order variation in the Romance DP. Section 4.2 introduces refinements to Alexiadou & Wilder (1998) and Alexiadou (2001). Section 5.3. discusses certain issues that arise from the analysis of postnominal adjectives in Romance as involving raising of XPs. Section 6 discusses phenomena found in other languages, which at first sight seem similar to DS. However, I show that double definiteness in e.g. Hebrew, Scandinavian or other Balkan languages constitutes a different type of phenomenon from Greek DS, thus making a distinction between determiners that introduce CPs (Greek) and those that are merely morphological/agreement markers (Hebrew, Scandinavian, Albanian)
On the Structure of the French DP
No full textAbstractThis paper discusses and expands upon various ideas concerning the structure of nominals in general (DPs) and of French nominals in particular, with the underlying idea that CP and DP have parallel argumental and functional structure. The main topics discussed are: (i) the projection of arguments in French and English; (ii) the parameterization of N-movement, which accounts for some word order differences between French and English; (iii) the distribution of adjectives in event nominals, which reflects that of adverbs in clauses in both French and English; (iv) a peculiar case of rightward movement out of DP that provides further evidence for N-movement as well as for the claim concerning the prohibition on right adjunction of genitive nominals within DP; and (v) extraction facts that are a consequence of the status of [Spec, DP] as an A′-position in French.</jats:p
From NP to DP Volume 1: The syntax and semantics of noun phrases
No full textThis is the first of a two-volume selection of refereed and revised papers, originally presented at the international conference From NP to DP at the University of Antwerp. The papers address issues in the syntax and semantics of the noun phrase, in particular the so-called DP-hypothesis which takes noun phrases to be headed by a functional head D(eterminer). The major concerns can be grouped around 3 subthemes: the internal syntax of noun phrases, the syntax and semantics of bare nouns and indefinites and the expression of measurement in noun phrases. The wealth of data coming from over 40 different languages combined with a thorough introduction to the current issues in the field of NPs/DPs and some alternative syntactic and semantic analyses, provide a comprehensive reference work from both a descriptive and a theoretical point of view. The second volume is concerned exclusively with the expression of possession in noun phrases.From NP to DP -- Editorial page -- Title page -- LCC page -- Contents -- Introduction: The syntax and semantics of noun phrases - Theoretical background -- Case studies -- References -- Chapter 1. Determiner Phrases in Old and Modern French -- Conclusion -- Notes -- References -- Chapter 2. On pro-nouns and other ''pronouns'' -- Conclusion -- Notes -- References -- Chapter 3. Modification in the Balkan nominal expression -- Problems and conclusions -- Notes -- References -- Chapter 4. Subnominal empty categories as subordinate topics -- Conclusion -- Notes -- References -- Chapter 5. 'Transparent' free relatives as a special instance of 'standard' free relatives -- Acknowledgements -- References -- Chapter 6. Resolving number ambiguities in Sakha -- Concluding remarks -- References -- Chapter 7. Weak indefinites -- Conclusion -- Notes -- References -- Chapter 8. Predicate-argument mismatches and the Adjectival Theory of indefinites -- Acknowledgements -- References -- Chapter 9. Determinerless nouns -- References -- Chapter 10. A Russellian interpretation of measure nouns -- Conclusion -- Notes -- References -- Chapter 11. Generalizing over quantitative and qualitative constructions -- Conclusion -- Notes -- References -- Chapter 12. On three types of movement within the Dutch nominal domain -- Concluding remarks -- Notes -- References -- Chapter 13. Semi-lexical nouns, classifiers, and the interpretation(s) of the pseudopartitive construction -- Conclusions -- Notes -- References -- Index of languages -- Index of subjects -- The series LINGUISTIK AKTUELL/LINGUISTICS TODAYThis is the first of a two-volume selection of refereed and revised papers, originally presented at the international conference From NP to DP at the University of Antwerp. The papers address issues in the syntax and semantics of the noun phrase, in particular the so-called DP-hypothesis which takes noun phrases to be headed by a functional head D(eterminer). The major concerns can be grouped around 3 subthemes: the internal syntax of noun phrases, the syntax and semantics of bare nouns and indefinites and the expression of measurement in noun phrases. The wealth of data coming from over 40 different languages combined with a thorough introduction to the current issues in the field of NPs/DPs and some alternative syntactic and semantic analyses, provide a comprehensive reference work from both a descriptive and a theoretical point of view. The second volume is concerned exclusively with the expression of possession in noun phrases.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
On the distribution of adjectives in Romanian : the cel construction
No full textThis paper deals with the variable position of adjectives in the Romanian DP. As all other Romance languages, Romanian allows for adjectives to appear in both prenominal and post-nominal position. In addition, however, Romanian has a third pattern: the so-called cel construction, in which the adjective in the post-nominal position is preceded by a determiner-like element, cel. This pattern is superficially similar to Determiner Spreading in Greek. In this paper we contrast the cel construction to Greek DS and discuss the similarities and differences between the two. We then present an analysis of cel as involving an appositive specification clause, building on de Vries (2002). We argue that the same structure is also involved in the context of nominal ellipsis, the second environment in which cel is found
Development of the French determiner phrase in monolingual and bilingual first language acquisition
No full textabstract: This study explores the acquisition of the determiner phrase (DP) in monolingual (L1) and bilingual (2L1) French. I investigate the acquisition of DP structures and features in the speech of two monolingual French and two bilingual French-English subjects from the CHILDES (Child Language Data Exchange System) corpus. I perform a thorough, longitudinal examination of the children's data, from the ages of 1;10 to 4;00, focusing on the description and analysis of their development of DP elements, words, and structures such as the definite and indefinite articles, demonstratives, and numerals, as well as the DP features of gender, number, and definiteness. I also consider the Adjective Phrase (AP) and its interaction with the DP.
This study complicates the traditional view of discrete, simplified stages of DP acquisition, arguing instead for an ongoing and complex process. Application of the Minimalist model of syntactic analysis provides essential insights into the underlying processes of child grammar, and suggests a number of previously unaddressed characteristics and patterns in French DP development.Dissertation/ThesisDoctoral Dissertation English 201
Extraction from DP in French: A minimalist approach
No full textThis article is about the extraction of French PP complements of nouns headed by de, mostly in wh and relative clause contexts. After a review of the literature on extraction in French, it addresses the issue of the constraints on extraction in cases with multiple arguments, eventually following Kolliakou (1999) in assuming that there can only be one argument of a noun, whereas other expressions are adjuncts. I then explain the relevant extractions within the Minimalist Program: on the assumption that DPs are phases, an extracted item must first move to the phase edge, as assumed in previous accounts. The exact extraction mechanism is then modeled by assuming a phi-probe plus an unvalued operator feature on the D head. The fact that only complements introduced by the preposition de can be extracted from the DP is explained by considering de as a post-syntactic marking for genitive case, which is assigned by the phi-probe
A common HLA-DPA1 variant is associated with hepatitis B virus infection but fails to distinguish active from inactive Caucasian carriers
No full textBackground and Aims: Chronic infection with the hepatitis B virus (HBV) is a major health issue worldwide. Recently, single nucleotide polymorphisms (SNPs) within the human leukocyte antigen (HLA)-DP locus were identified to be associated with HBV infection in Asian populations. Most significant associations were observed for the A alleles of HLA-DPA1 rs3077 and HLA-DPB1 rs9277535, which conferred a decreased risk for HBV infection. We assessed the implications of these variants for HBV infection in Caucasians.
Methods: Two HLA-DP gene variants (rs3077 and rs9277535) were analyzed for associations with persistent HBV infection and with different clinical outcomes, i.e., inactive HBsAg carrier status versus progressive chronic HBV (CHB) infection in Caucasian patients (n = 201) and HBsAg negative controls (n = 235).
Results: The HLA-DPA1 rs3077 C allele was significantly associated with HBV infection (odds ratio, OR = 5.1, 95% confidence interval, CI: 1.9–13.7; p = 0.00093). However, no significant association was seen for rs3077 with progressive CHB infection versus inactive HBsAg carrier status (OR = 2.7, 95% CI: 0.6–11.1; p = 0.31). In contrast, HLA-DPB1 rs9277535 was not associated with HBV infection in Caucasians (OR = 0.8, 95% CI: 0.4–1.9; p = 1).
Conclusions: A highly significant association of HLA-DPA1 rs3077 with HBV infection was observed in Caucasians. However, as a differentiation between different clinical courses of HBV infection was not possible, knowledge of the HLA-DPA1 genotype cannot be translated into personalized anti-HBV therapy approaches
On the effects of non-linearities in DP systems
No full textIn offshore operations a trend is forming where vessels are more often required to do multiple short operations within a small-time frame. Traditional mooring systems require execution time far beyond the operation time. Dynamic positioning systems offer great advantages for short time span operations such as crew transfer or lift operations. Currently operations are planned based on DP capability plots and experience of captain and DPO. DP capability plots have little operational value as this is a static calculation and only provide information for average station keeping capability. During operations, the displacements made by the vessel around the DP set-point, also referred to as DP offset, are of great importance to determine the operability of an operation. Currently, the only way of calculating the DP offset is by conducting extensive time domain simulations, which are hard to integrate in the operational workflow of a DP vessel involved in walk-to-work operations. Therefore, a new approach is developed which predicts the vessel’s DP offset in the frequency domain, which enables a quick and robust calculation of the DP offset which is suited to merge into the on-board workflow. A frequency domain model is per definition a linear model. This leads to the main challenge of this research. A vessel operating on DP is non-linear. Currently there is no insight in what the effect is of non-linear components present in a DP system, on the linear approximation of a frequency domain model. To investigate the effect of non-linear components onto the DP frequency domain model, a time domain model is developed that is capable of systematically enabling/disabling different non-linear components. The time domain model will serve as the ’truth’ in this research as no actual vessel data is available. Furthermore, this helps identify the effects more easily, as the input for both models are identical. From the time domain model transfer functions can be derived that serve as the basis for the frequency domain model. The transfer function is a linear relation between two variables. In this case, between second order wave drift forces and displacement of the vessel in surge, sway and yaw direction. The following non-linear components are investigated in this research: Thruster ramp up, thruster turning rate, forbidden zones, saturation and thruster allocation. Thruster allocation is present in each model that will be tested, as this is an essential part of a DP system. Using two methods of determining transfer functions the model and the effects of all non-linear components are tested. The model is subjected to a variety sea-state, with different wave directions. Both methods offer similar results even though different approaches to determine the transfer functions are used. The selected method is capable of accurately predicting vessel offsets, although some extreme offsets are not captured. It is concluded that the presence of non-linear components have little to no effect on the DP offset as calculated by the time domain model. Because natural frequencies characteristic to these non-linear components are expected to exist at much higher frequencies that naturally present in second order wave drift forces. Thus, making a linear frequency domain model suitable for DP offset forecasting. It is advised to investigate the effect of including 2D input spectra as this is expected to improve the current model.<br/
Differentially Private GAN for Time Series
No full textGenerative Adversarial Networks (GANs) are a modern solution aiming to encourage public sharing of data, even if the data contains inherently private information, by generating synthetic data that looks like, but is not equal to, the data the GAN was trained on. However, GANs are prone to remembering samples from the training data, therefore additional care is needed to guarantee privacy. Differentially Private (DP) GANs offer a solution to this problem by protecting user privacy through a mathematical guarantee, achieved by adding carefully constructed noise at specific points in the training process. A state-of-the-art example of such a GAN is Gradient Sanitized Wasserstein GAN, (GS-WGAN), \cite{chen2021gswgan}. This model is shown to create higher quality synthetic images than other DP GANs. To extend the applicability of GS-WGAN we first reproduce and extend the evaluation, verifying that the model outperforms DP-CGAN by an average of 40\% when assessed across three qualitative metrics and two datasets. Secondly we propose improvements to the architecture and training procedure to make GS-WGAN applicable on timeseries data. The experimental results show that GS-WGAN is fit for generating synthetic timeseries through promising experimental results.[1] D. Chen, T. Orekondy, and M. Fritz, “Gs-wgan: A gradient-sanitized approach for learning differentially private generators,” 2021CSE3000 Research ProjectComputer Science and Engineerin
BNN-DP: Robustness Certification of Bayesian Neural Networks via Dynamic Programming
No full textIn this paper, we introduce BNN-DP, an efficient algorithmic framework for analysis of adversarial robustness of Bayesian Neural Networks (BNNs). Given a compact set of input points T ⊂ Rn, BNN-DP computes lower and upper bounds on the BNN's predictions for all the points in T. The framework is based on an interpretation of BNNs as stochastic dynamical systems, which enables the use of Dynamic Programming (DP) algorithms to bound the prediction range along the layers of the network. Specifically, the method uses bound propagation techniques and convex relaxations to derive a backward recursion procedure to over-approximate the prediction range of the BNN with piecewise affine functions. The algorithm is general and can handle both regression and classification tasks. On a set of experiments on various regression and classification tasks and BNN architectures, we show that BNN-DP outperforms state-of-the-art methods by up to four orders of magnitude in both tightness of the bounds and computational efficiency.Team Luca Laurent
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