GUIsurfer: A Reverse Engineering Framework for User Interface Software

GUIsurfer: A Reverse Engineering Framework for User Interface Software

Real-time 3D interactive segmentation of echocardiographic data through user-based deformation of B-spline explicit active surfaces

Image segmentation is an ubiquitous task in medical image analysis, which is required to estimate morphological or functional properties of given anatomical targets. While automatic processing is highly desirable, image segmentation remains to date a supervised process in daily clinical practice. Indeed, challenging data often requires user interaction to capture the required level of anatomical detail. To optimize the analysis of 3D images, the user should be able to efficiently interact with the result of any segmentation algorithm to correct any possible disagreement. Building on a previously developed real-time 3D segmentation algorithm, we propose in the present work an extension towards an interactive application where user information can be used online to steer the segmentation result. This enables a synergistic collaboration between the operator and the underlying segmentation algorithm, thus contributing to higher segmentation accuracy, while keeping total analysis time competitive. To this end, we formalize the user interaction paradigm using a geometrical approach, where the user input is mapped to a non-cartesian space while this information is used to drive the boundary towards the position provided by the user. Additionally, we propose a shape regularization term which improves the interaction with the segmented surface, thereby making the interactive segmentation process less cumbersome. The resulting algorithm offers competitive performance both in terms of segmentation accuracy, as well as in terms of total analysis time. This contributes to a more efficient use of the existing segmentation tools in daily clinical practice. Furthermore, it compares favorably to state-of-the-art interactive segmentation software based on a 3D livewire-based algorithm.

An approach for graphical user interface bad smells detection

In the context of an e ort to develop methodologies to support the evaluation of interactive system, this paper investigates an approach to detect graphical user interface bad smells. Our approach consists in detecting user interface bad smells through model-based reverse engineering from source code. Models are used to de ne which widgets are present in the interface, when can particular graphical user interface (GUI) events occur, under which conditions, which system actions are executed, and which GUI state is generated next.

Interfaces das mudanças hospitalaresna ótica da enfermeira-gerente

O atual contexto de transformação e instabilidade social e econômica implica profundas reestruturações nos hospitais. Tendo em vista as mudanças observadas nessas organizações e a ocupação de cargos gerenciais por enfermeiras, este estudo de natureza qualitativa buscou: caracterizar as principais mudanças em hospitais privados de médio e grande porte de Belo Horizonte; identificar os determinantes internos e externos à organização que influenciam os modelos de gestão; e conhecer os principais fatores que interferem no cotidiano das gerentes. Foram estudados 19 hospitais e entrevistadas 29 enfermeiras em cargos gerenciais. Os resultados indicam mudanças estruturais, estratégicas, culturais, tecnológicas, humanas e políticas. Os modos de gestão foram influenciados pela dinâmica organizacional, pela formação profissional das gerentes e pelas especificidades da função gerencial. O Sistema Único de Saúde foi apontado como o principal fator externo que interfere na organização. O cotidiano das gerentes foi influenciado por fatores organizacionais e fatores profissionais.

O urbano em questão na antropologia: interfaces com a sociologia

O artigo aborda temas em torno da dimensão urbana na antropologia, explorando diálogos de fronteira entre tal disciplina e a sociologia em três momentos específicos: o primeiro sobre as décadas iniciais da Escola de Chicago, época de definição de uma pauta de pesquisas etnográficas sobre a cidade e a cultura urbana, com investigações pioneiras sobre a segregação socioespacial, com ênfase no conceito de gueto; no segundo, analisam-se interfaces entre a antropologia e a sociologia urbanas em São Paulo, nas décadas de 1970 e 1980, em torno do tema da periferia, com a produção de pesquisas marcadas pela polarização entre os conceitos de cultura e ideologia; finalmente, enfocam-se desafios contemporâneos à antropologia urbana, buscando-se retomar tópicos de um diálogo disciplinar que ocorre apenas implicitamente, bem como reaver o tema da periferia, tendo em vista fenômenos recentes que implicam tomá-la simultaneamente como espacialidade, processo e conjunto polifônico de representações nativas.

User perception and influencing factors of technology in everyday life

An increasing amount of research is being developed in the area where technology and humans meet. The success or failure of technologies and the question whether technology helps humans to fulfill their goals or whether it hinders them is in most cases not a technical one. User Perception and Influencing Factors of Technology in Everyday Life addresses issues of human and technology interaction. The research in this work is interdisciplinary, ranging from more technical subjects such as computer science, engineering, and information systems, to non-technical descriptions of technology and human interaction from the point of view of sociology or philosophy. This book is perfect for academics, researchers, and professionals alike as it presents a set of theories that allow us to understand the interaction of technology and humans and to put it to practical use.

A user-centered interface for scheduling problem definition

In this paper we present a user-centered interface for a scheduling system. The purpose of this interface is to provide graphical and interactive ways of defining a scheduling problem. To create such user interface an evaluation-centered user interaction development method was adopted: the star life cycle. The created prototype comprises the Task Module and the Scheduling Problem Module. The first one allows users to define a sequence of operations, i.e., a task. The second one enables a scheduling problem definition, which consists in a set of tasks. Both modules are equipped with a set of real time validations to assure the correct definition of the necessary data input for the scheduling module of the system. The usability evaluation allowed us to measure the ease of interaction and observe the different forms of interaction provided by each participant, namely the reactions to the real time validation mechanism.

A influência das emoções positivas e da idade na interpretação de gráficos com dimensões visuais e auditivas

Dissertação apresentada à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Audiovisual e Multimédia.

Lightweight user modeling – a case study

In the context of previous publications, we propose a new lightweight UM process, intended to work as a tourism recommender system in a commercial environment. The new process tackles issues like cold start, gray sheep and over specialization through a rich user model and the application of a gradual forgetting function to the collected user action history. Also, significant performance improvements were achieved regarding the previously proposed UM process.

Interfaces inovadores para a aprendizagem musical

Mestrado em Engenharia Informática

User modeling and recommendation strategies for tourism

Mestrado em Engenharia Informática

Interdiffusion at Sb/Ge interfaces induced in thin multilayer films by nanosecond laser irradiation

Thin films consisting of 3 or 4 Sb and Ge alternating layers are irradiated with single nanosecond laser pulses (12 ns, 193 nm). Real time reflectivity (RTR) measurements are performed during irradiation, and Rutherford backscattering spectrometry (RBS) is used to obtain the concentration depth profiles before and after irradiation. Interdiffusion of the elements takes place at the layer interfaces within the liquid phase. The reflectivity transients allow to determine the laser energy thresholds both to induce and to saturate the process being both thresholds dependent on the multilayer configuration. It is found that the energy threshold to initiate the process is lower when Sb is at the surface while the saturation is reached at lower energy densities in those configurations with thinner layers.

User modeling In adaptive hypermedia educational systems

This document is a survey in the research area of User Modeling (UM) for the specific field of Adaptive Learning. The aims of this document are: To define what it is a User Model; To present existing and well known User Models; To analyze the existent standards related with UM; To compare existing systems. In the scientific area of User Modeling (UM), numerous research and developed systems already seem to promise good results, but some experimentation and implementation are still necessary to conclude about the utility of the UM. That is, the experimentation and implementation of these systems are still very scarce to determine the utility of some of the referred applications. At present, the Student Modeling research goes in the direction to make possible reuse a student model in different systems. The standards are more and more relevant for this effect, allowing systems communicate and to share data, components and structures, at syntax and semantic level, even if most of them still only allow syntax integration.