This paper describes the analysis of weak local coherence utterances during humancomputer conversation through the application of an emergent data mining technique, data crystallization. Results reveal that by adding utterances with weak local relevance the performance of a baseline conversational partner, in terms of user satisfaction, showed betterment.

Functional neurosurgical techniques provide a unique opportunity to explore patterns of interaction between the cerebral cortex and basal ganglia in patients with Parkinson's disease (PD). Previous work using simultaneous magnetoencephalographic (MEG) and local field potential (LFP) recordings from the region of the subthalamic nucleus (STNr) has characterised resting patterns of connectivity i...

Humans are able to detect blurring of visual images, but the mechanism by which they do so is not clear. A traditional view is that a blurred image looks “unnatural” because of the reduction in energy (either globally or locally) at high frequencies. In this paper, we propose that the disruption of local phase can provide an alternative explanation for blur perception. We show that precisely lo...

A central question for psycholinguistics concerns the role of grammatical constraints in online sentence processing. Many current theories maintain that, at each point in time, the processor constructs an analysis which is consistent with the grammatical information in the input. Several bottom-up, dynamical models make a contrasting prediction: partial parses which are syntactically incompatib...

This paper addresses the question whether locally coherent word sequences in spoken sentences interfere with the global interpretation. We present a visual world experiment where three depicted events were presented simultaneously while a sentence was spoken. The results suggest that local syntactic coherences are not only processed at a syntactic level, but they are interpreted on-line.

In this paper we will investigate the centering theory proposed by Grosz, Joshi, and Weinstein (1995) (henceforth GJW) and revised in Walker, Joshi, and Prince (1998) (henceforth WJP), and argue that their theory needs to be further extended and revised. We show that the centering theory proposed by GJW and WJP would make wrong predictions about the preferred transition states in discourse proc...

We investigate the robust PCA problem of decomposing an observed matrix intothe sum of a low-rank and a sparse error matrices via convex programming PrincipalComponent Pursuit (PCP). In contrast to previous studies that assume the supportof the sparse error matrix is generated by uniform Bernoulli sampling, we allow non-uniform sampling, i.e., entries of the low-rank matrix are ...

MOTIVATION Epistatic or genetic interactions, representing the effects of mutating one gene on the phenotypes caused by mutations in one or more distinct genes, can be very helpful for uncovering functional relationships between genes. Recently, the epistatic miniarray profiles (E-MAP) method has emerged as a powerful approach for identifying such interactions systematically. For E-MAP data ana...

We study effects of spatiotemporal additive noise on the spatial dynamics of excitable neuronal media that is locally modelled by a two-dimensional map. We focus on the ability of noise to enhance a particular spatial frequency of the media in a resonant manner. We show that there exists an optimal noise intensity for which the inherent spatial periodicity of the media is resonantly pronounced,...