Meghan Allen

Learn More
[1] The analysis of univariate or multivariate time series provides crucial information to describe, understand, and predict climatic variability. The discovery and implementation of a number of novel methods for extracting useful information from time series has recently revitalized this classical field of study. Considerable progress has also been made in(More)
* Permanent address: Space Science Department, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK and Department of Physics, University of Oxford, UK (e-mail: m.allen16physics.oxford.ac.uk) Abstract. Extended empirical orthogonal functions (EEOFs), alternatively known as multi-channel singular systems (or singular spectrum) analysis (MSSA),(More)
PhotoTalk is an application for a mobile device that allows people with aphasia to capture and manage digital photographs to support face-to-face communication. Unlike any other augmentative and alternative communication device for people with aphasia, PhotoTalk focuses solely on image capture and organization and is designed to be used independently. Our(More)
In this paper we discuss the Network Analysis Visualization (NAV) project, a tool for investigating high level network events. Monitoring network activity has been a critical task for administrators since networks were first introduced, both for maintaining system security and tracking resource utilization. Traditionally, the tools used by both enterprise(More)
Individual yeast cells display a finite replicative capacity. LAG1 was identified as a gene that is differentially expressed during the yeast replicative life span and was shown to play a role in determining yeast longevity. This gene is not essential, but simultaneous deletion of LAG1 and its close homologue LAC1 is lethal. Lag1p and Lac1p have been found(More)
A linear analysis is applied to a multi-thousand member ‘‘perturbed physics‘‘ GCM ensemble to identify the dominant physical processes responsible for variation in climate sensitivity across the ensemble. Model simulations are provided by the distributed computing project, climate prediction.net . A principal component analysis of model radiative response(More)
[1] Studies attempting to constrain climate sensitivity, or equilibrium surface warming in response to a doubling of atmospheric carbon dioxide, by comparing models with observations report a wide range of distributions, particularly regarding the upper bound. There is, by contrast, a considerable consensus surrounding the transient climate response, in(More)
A method for estimating uncertainty in future climate change is discussed in detail and applied to predictions of global mean temperature change. The method uses optimal fingerprinting to make estimates of uncertainty in model simulations of twentieth-century warming. These estimates are then projected forward in time using a linear, compact relationship(More)
Teams engaging in assistive technology research should include expertise in the domain of disability itself, in addition to other areas of expertise that are more typical in human–computer interaction (HCI) research, such as computer science and psychology. However, unexpected problems can arise when HCI researchers do not adequately plan the involvement of(More)
Talk is an application for a mobile device that allows people with aphasia to capture and manage digital photographs to support face-to-face communication. Unlike any other augmentative and alternative communication device for people with aphasia, PhotoTalk focuses <i>solely</i> on image capture and organization and is designed to be used independently. Our(More)