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1. Erick Mauricio Gomez Nieto. Generation of semantic layouts for interactive multidimensional data visualization.

Degree: 2017, University of São Paulo

Visualization methods make use of interactive graphical representations embedded on a display area in order to enable data exploration and analysis. These typically rely on geometric primitives for representing data or building more sophisticated representations to assist the visual analysis process. One of the most challenging tasks in this context is to determinate an optimal layout of these primitives which turns out to be effective and informative. Existing algorithms for building layouts from geometric primitives are typically designed to cope with requirements such as orthogonal alignment, overlap removal, optimal area usage, hierarchical organization, dynamic update among others. However, most techniques are able to tackle just a few of those requirements simultaneously, impairing their use and flexibility. In this dissertation, we propose a set of approaches for building layouts from geometric primitives that concurrently addresses a wider range of requirements. Relying on multidimensional projection and optimization formulations, our methods arrange geometric objects in the visual space so as to generate well-structured layouts that preserve the semantic relation among objects while still making an efficient use of display area. A comprehensive set of quantitative comparisons against existing methods for layout generation and applications on text, image, and video data set visualization prove the effectiveness of our approaches.

Métodos de visualização fazem uso de representações gráficas interativas embutidas em uma área de exibição para exploração e análise de dados. Esses recursos visuais usam primitivas geométricas para representar dados ou compor representações mais sofisticadas que facilitem a extração visual de informações. Uma das tarefas mais desafiadoras é determinar um layout ótimo visando explorar suas capacidades para transmitir informação dentro de uma determinada visualização. Os algoritmos existentes para construir layouts a partir de primitivas geométricas são tipicamente projetados para lidar com requisitos como alinhamento ortogonal, remoção de sobreposição, área usada, organização hierárquica, atualização dinâmica entre outros. No entanto, a maioria das técnicas são capazes de lidar com apenas alguns desses requerimentos simultaneamente, prejudicando sua utilização e flexibilidade. Nesta tese, propomos um conjunto de abordagens para construir layouts a partir de primitivas geométricas que simultaneamente lidam com uma gama mais ampla de requerimentos. Baseando-se em projeções multidimensionais e formulações de otimização, os nossos métodos organizam objetos geométricos no espaço visual para gerar layouts bem estruturados que preservam a relação semântica entre objetos enquanto ainda fazem um uso eficiente da área de exibição. Um conjunto detalhado de comparações quantitativas com métodos existentes para a geração de layouts e aplicações em visualização de conjunto de dados de texto, imagem e vídeo comprova a eficácia das técnicas propostas.

Advisors/Committee Members: Luis Gustavo Nonato, João Luiz Dihl Comba, Nivan Roberto Ferreira Júnior.

Subjects/Keywords: Dados em alta dimensão; Layout semântico; Layouts estruturados; Otimização de área; Preservação da similaridade; Remoção de sobreposição; Area optimization; High-dimensional data; Overlap removal; Semantic layout; Similarity preserving

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Nieto, E. M. G. (2017). Generation of semantic layouts for interactive multidimensional data visualization. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/55/55134/tde-11052017-105059/

Chicago Manual of Style (16th Edition):

Nieto, Erick Mauricio Gomez. “Generation of semantic layouts for interactive multidimensional data visualization.” 2017. Doctoral Dissertation, University of São Paulo. Accessed April 12, 2021. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-11052017-105059/.

MLA Handbook (7th Edition):

Nieto, Erick Mauricio Gomez. “Generation of semantic layouts for interactive multidimensional data visualization.” 2017. Web. 12 Apr 2021.

Vancouver:

Nieto EMG. Generation of semantic layouts for interactive multidimensional data visualization. [Internet] [Doctoral dissertation]. University of São Paulo; 2017. [cited 2021 Apr 12]. Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-11052017-105059/.

Council of Science Editors:

Nieto EMG. Generation of semantic layouts for interactive multidimensional data visualization. [Doctoral Dissertation]. University of São Paulo; 2017. Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-11052017-105059/


University of Saskatchewan

2. Nacenta Sanchez, Miguel Angel. Cross-display object movement in multi-display environments.

Degree: 2009, University of Saskatchewan

Many types of multi-display environments (MDEs) are emerging that allow users to better interact with computers. In these environments, being able to move visual objects (such as window icons or the cursor) from one display to another is a fundamental activity. This dissertation focuses on understanding how human performance of cross-display actions is affected by the design of cross-display object movement interaction techniques. Three main aspects of cross-display actions are studied: how displays are referred to by the system and the users, how spatial actions are planned, and how actions are executed. Each of these three aspects is analyzed through laboratory experiments that provide empirical evidence on how different characteristics of interaction techniques affect performance. The results further our understanding of cross-display interaction and can be used by designers of new MDEs to create more efficient multi-display interfaces. Advisors/Committee Members: Gutwin, Carl, Mandryk, Regan, Kusalik, Tony, Jamali, Nadeem, Elias, Lorin, Bailey, Brian, Schneider, Kevin.

Subjects/Keywords: pointing; mouse control; cross-display object movement; multi-surface environments; multi-display environments; human-computer interaction; input; perspective; interaction techniques; remote pointing; dimensional overlap; stimulus-response compatibility

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Nacenta Sanchez, M. A. (2009). Cross-display object movement in multi-display environments. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-01062010-123426

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Nacenta Sanchez, Miguel Angel. “Cross-display object movement in multi-display environments.” 2009. Thesis, University of Saskatchewan. Accessed April 12, 2021. http://hdl.handle.net/10388/etd-01062010-123426.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Nacenta Sanchez, Miguel Angel. “Cross-display object movement in multi-display environments.” 2009. Web. 12 Apr 2021.

Vancouver:

Nacenta Sanchez MA. Cross-display object movement in multi-display environments. [Internet] [Thesis]. University of Saskatchewan; 2009. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/10388/etd-01062010-123426.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nacenta Sanchez MA. Cross-display object movement in multi-display environments. [Thesis]. University of Saskatchewan; 2009. Available from: http://hdl.handle.net/10388/etd-01062010-123426

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.