We show that, using the L1 metric, the minimum Hausdorr distance under translation between two point sets of cardinality n in d-dimensional space can be computed in time O(n (4d?2)=3 log 2 n) for d > 3. Thus we improve the previous time bound of O(n 2d?2 log 2 n) due to Chew and Kedem. For d = 3 we obtain a better result of O(n 3 log 2 n) time by exploiting the fact that the union of n axis-par...

This research is aimed at analyzing and improving automatic pronunciation error detection in a second language. Dutch vowels spoken by adult non-native learners of Dutch are used as a test case. A first study on Dutch pronunciation by L2 learners with different L1s revealed that vowel pronunciation errors are relatively frequent and often concern subtle acoustic differences between the realizat...

Title of dissertation: BAYESIAN MODEL OF CATEGORICAL EFFECTS IN L1 AND L2 SPEECH PERCEPTION Yakov Kronrod, Doctor of Philosophy, 2014 Dissertation directed by: Professor Naomi Feldman Department of Linguistics In this dissertation I present a model that captures categorical effects in both first language (L1) and second language (L2) speech perception. In L1 perception, categorical effects rang...

the purpose of the present study was to identify any significant relationship between critical thinking ability, l2 vocabulary knowledge, and l2 vocabulary learning strategies of iranian efl learners. to this aim, the productive vocabulary levels test was administered to measure the learner’s l2 vocabulary knowledge and observe homogeneity in terms of vocabulary knowledge. at the second stage, ...

introduction: appropriate definition of the distance measure between diffusion tensors has a deep impact on diffusion tensor image (dti) segmentation results. the geodesic metric is the best distance measure since it yields high-quality segmentation results. however, the important problem with the geodesic metric is a high computational cost of the algorithms based on it. the main goal of this ...

This paper relates the boundary term in the Chern-Gauss-Bonnet formula on 4-manifolds M with the renormalized volume V , as defined in the AdS/CFT correspondence, for asymptotically hyperbolic Einstein metrics on M . In addition we show that the differential or variation dV of V , or equivalently the variation of the L norm of the Weyl curvature, is intrinsically determined by the conformal inf...

High-performance processors are becoming increasingly power bound with technology scaling. Dynamic voltage and frequency scaling (DVFS) has emerged as an efficient method of reducing power consumption by lowering the operating voltage and frequency of a processor. We propose a multicore memory-aware DVFS scheme based on VSV, a uniprocessor DVFS algorithm that throttles a core based on L2 cache ...

Rhythm metrics can detect second language development of target-like speech rhythm but interpretation the results from in learners’ is problematic because mapping to underpinning phonological features indirect. We investigate first (L1) Arabic / (L2) English, which differ key properties contributing percept rhythm: unstressed vowel reduction and syllable structure. Our production data are inter...

Pyrrolyl squaraines, both dyes and polymers, were first reported in 1965 and since then a fascinating body of work has been produced investigating the chemistry of these interesting molecules. A major aspect of these molecules that makes them so appealing to those researchers who have contributed to this field over the last 50 years is their chemical versatility. In this review, subjects, such ...

Accurate dialog state tracking is crucial for the design of an efficient spoken dialog system. Until recently, quantitative comparison of different state tracking methods was difficult. However the 2013 Dialog State Tracking Challenge (DSTC) introduced a common dataset and metrics that allow to evaluate the performance of trackers on a standardized task. In this paper we present our belief trac...