Michael McCurdy

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This paper presents a summary of the space of commonly-used HCI prototyping methods (low-fidelity to high-fidelity) and asserts that with a better understanding of this space, HCI practitioners will be better equipped to direct scarce prototyping resources toward an effort likely to yield specific results. It presents a set of five dimensions along which(More)
This paper presents X-PRT, a new cognitive modeling tool supporting activities ranging from interface design to basic cognitive research. X-PRT provides a graphical model development environment for the CORE constraint-based cognitive modeling engine [7,13,21]. X-PRT comprises a novel feature set: (a) it supports the automatic generation of predictive(More)
In this paper we report a new approach to generating predictions about skilled interactive cognition. The approach, which we call Cognitive Constraint Modeling, takes as input a description of the constraints on a task environment, on user strategies, and on the human cognitive architecture and generates as output a prediction of the time course of(More)
This paper describes the design and deployment of a collaborative software tool, designed for and presently in use on the Mars Exploration Rovers (MER) 2003 mission. Two central questions are addressed. Does collaborative content like that created on easels and whiteboards have persistent value? Can groups of people jointly manage collaboratively created(More)
A number of new tactical planning and operations tools were deployed on the highly successful Mars Exploration Rover (MER) mission. Based on successes and lessons from the MER experience, a number of groups at NASA Ames and JPL have developed a platform for developing integrated operations tools, called Ensemble. Ensemble is a multi-mission toolkit for(More)
This document describes the Mixed Initiative Activity Plan Generation system MAPGEN. This system is one of the critical tools in the Mars Exploration Rover mission surface operations, where it is used to build activity plans for each of the rovers, each Martian day. The MAPGEN system combines an existing tool for activity plan editing and resource modeling,(More)
In this work we discuss how the quality of localization knowledge impacts the remote operation of rovers on the surface of Mars. We look at the techniques of localization estimation used in the Mars pathfinder and Mars exploration rover missions. We discuss the virtues and shortcomings of existing approaches and new improvements in the latest operations(More)
Many planning tools developed as user-facing interfaces to automated planning systems do not allow users enough flexibility to explore plans in a number of different ways, quickly understand complex sets of constraints and their implications, or experiment with different solutions without fear of losing work. Typically, such tools are architected in such a(More)
Cardiac dysfunction is a common complication of sepsis in individuals with preexisting coronary disease and portends a poor prognosis when progressing to ischemic cardiogenic shock. In this setting, maximal medical therapy in isolation is often inadequate to maintain cardiac output for patients who are poor candidates for immediate revascularization.(More)
A 54-year-old man with a history of alcohol use presented with hematochezia and syncope. Upon arrival to the hospital, his bleeding had stopped. He was hemodynamically stable with hemoglobin of 11g/dL, international normalized ratio of 1.8 and platelets of 37K/mcL. Nasogastric aspirate found bilious gastric contents without blood. Esophagogastroduodenoscopy(More)