SIAT - Theses, Dissertations, and other Required Graduate Degree Essays

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The Evaluation of Selected Parameters that Affect Motion Artifacts in Stereoscopic Video

Author: 
Date created: 
2014-08-18
Abstract: 

This work investigates the role of various parameters on the visibility or strength of motion artifacts in stereoscopic video. The parameters examined in an experimental study were disparity, presentation protocol (double flash or triple flash), seating position of a viewer in the theatre and speed of a moving object in the scene. The results of the study suggested that disparity and presentation protocol had no significant effect on the visibility or strength of the motion artifacts. Speed of a moving object had a significant effect on both the visibility and strength of the motion artifacts. Although position does not itself have a significant effect, there was an interaction between speed and seating position that had a significant effect. The speed threshold for visibility of motion artifacts was significantly higher for viewers sitting closest to the screen, which is surprising. It is concluded that the effects of viewer seating position on the perception of movement artifacts requires further investigation.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Tom Calvert
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.Sc.

Migratory Embodied Experiences: The Convergence of Sensory Ethnography and Experimental Documentary

Author: 
Date created: 
2014-07-07
Abstract: 

The thesis explores the capacity and operations of video-making to evoke, amplify and transmit our transcultural affects. I draw upon Spinoza’s notion of affect that simultaneously refer to both affect as a change in the state of existence, and affection, which suggests the effect of another body on another. To address this two-sided understanding of affect, I draw upon Simondon’s transindividuality, Bergsonian memory and Deleuzian film theory. I also would like to situate this project within the collaboration between anthropology and art, which takes into account the relational and processual understanding of the individual, and the capacity of our body to affect and to be affected. My ethnographic video project Migratory Affects can be described as an assemblage of particular moments and expressions of transcultural experience unfolding in a particular spatiotemporal setting, which is widened up by the plurality of temporalities, sensoria and realities that we come into contact within the midst of our relational becomings.

Document type: 
Thesis
File(s): 
etd8449_OIscen_supp_001.mp4
Senior supervisor: 
Diane Gromala
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.A.

The Affective Affordance of Motionscape

Author: 
Date created: 
2014-05-14
Abstract: 

Visual artists and designers often employ the extensive compositions of visual forms and motion to construct abstract motionscapes. While abstract motionscapes are often employed for the evocation of affective experience in many recent interactive environments, little work has been done to correlate the two. In this thesis research, two empirical studies were conducted to investigate how various fundamental properties of motionscapes influence viewer affective experience. Sixty university students were recruited to give self-reports on the affective experience of a number of motionscape primitives. Results showed that basic motionscape properties such as speed, direction, path curvature, shape, and scale, all had significant impacts on the affective experience of the tested motionscape primitives. The display conditions under which motionscape primitives were presented, were also found crucial for the motionscape expressiveness. Based on these findings, we envision the emerging principles and directions of the motionscape design for affective visualization within the interactive environments.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Lyn Bartram
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.Sc.

Visualizing the analysis process: CZSaw's History View

Author: 
Date created: 
2011-02-28
Abstract: 

Capturing and visualizing the data analysis process is a growing research domain. Visual Analytics tool designers try to understand the analysis process in order to provide better tools. Existing research in process visualization suggests that capturing and visualizing the history of the analysis process is an effective form of process visualization. CZSaw is a Visual Analytics tool that provides visual representations of both data and the analysis process. In this thesis, we discuss the design and development of CZSaw’s History View, a method we have designed and developed to capture and visualize the history of data exploration sessions with CZSaw. Our goal is to understand how analysts employ visual history in the analysis process. Achieving this goal helps us in providing better support for analysts. We conducted an informal user study based on which, we have developed a list of user expectations and suggestions for history visualization.

Document type: 
Thesis
File(s): 
Senior supervisor: 
John Dill
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.Sc.

Tango Cards: A Card-Based Design Tool for Informing the Design of Tangible Learning Games

Author: 
Date created: 
2014-05-22
Abstract: 

For over thirty years researchers have suggested that both tangible user interfaces and digital games have potential to support learning. Each domain now has a well-developed body of literature about how to design them to enable learning benefits. What is needed is a way to bring this knowledge, which is often lengthy, dense, and jargon laden to design practice. To address this need, I designed and evaluated Tango Cards—a card-based design tool. I found that Tango Cards enabled a variety of uses that made design knowledge about tangible learning games accessible to designers. I identified and discussed how specific card features supported or limited card use by designers. Drawing on the findings of Tango Cards and previous cards, I set forth design considerations that can support others to create design tools (card-based or alike) that bring scholarly design knowledge to designers.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Alissa N. Antle
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.Sc.

Symbiogenic Experience and the Emergent Arts: Cybernetics, Art and Existential Phenomenology

Date created: 
2014-03-31
Abstract: 

This dissertation is an exploration of the ways in which certain forms of interactive art can and do elicit experiences of co-evolution with a technologized environment. These "emergent arts", I argue, give rise to a sensory experience of a sense of being embedded and co-emergent with this environment. The term "co-evolution" is often taken to allude to Darwin biological processes of interaction between two or more species. However, much like humanities scholars such as Katherine Hayles and Mark Hansen do in their analyses of technology (Hayles 1999; Hayles 2002; Hayles 2007; Hansen 2006; Hansen 2005; Hansen 2009a), I recast the term to refer to processes of emergence, self-organization and autopoiesis. By examining these artworks and experiences via the interlocking frames of cybernetics, phenomenological philosophy, posthumanism and interactive/new media art, this dissertation articulates the movement towards a framework that fuses theoretical and experiential modes of inquiry to provide insights relevant to both interactive artists and humanities scholars. New approaches to understanding and studying technologically-based artworks are proffered that attend to how these artworks are contributing to a new range of experiences that more adeptly attune us to our techno-ecological context. Experiences that I refer to as "symbiogenic". The framework centers on the exposition of four theoretical concepts: Ambiguity and Unknowability, Boundary, Distributed Intentionality and Collectively Emergent Autonomy. In addition, a taxonomical model of artworks is put forth that outlines a number of characteristics of new media and interactive arts practice that engage in processes that establish a foundation for the shifts in perceptual and embodied experience that I characterize as symbiogenic. Along with the textual exegesis, this dissertation details the conceptualization, design, construction and exhibition of two interactive artworks: Protocol and Biopoiesis. Their function in this research is threefold: first as a concrete method of putting theories to the ontological test beyond conventional textual means, second, a way developing new concepts and techniques and modifying existing ones (this applies to both the philosophical ideas and to the technical systems that are developed specifically for each artwork) and third they serve as embodiments of theoretical concepts in their own right.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Diane Gromala
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Dissertation) Ph.D.

Exploring Aesthetic Visualization for Promoting Consumer Energy Conservation

Author: 
Date created: 
2014-03-21
Abstract: 

Consumer awareness of energy use and their act in energy conservation are inextricably linked because the former enables informed decision-making and motivates behaviour change. Various feedback techniques have been developed to increase consumer knowledge and problems with traditional methods such as pragmatic charts are the lack of engagingness and integrity with the context. As an alternative, we explore the effectiveness and utility of using aesthetic visualization as feedback for consumer energy use, as we believe its more attractive display will increase aesthetic interest and better fit with the environment. In our two-staged study, we first investigate its effectiveness in comprehension and then further explore its ability in supporting decision-making and understanding within a simulated gaming context. We conclude that aesthetic visualization is a promising approach due to its advantage of engaging people with visually interesting display while maintaining comprehensibility, supporting at-a-glance awareness and enabling informed decision-making.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Lyn Bartram
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) M.Sc.

Programming in the model: A new perspective on scripting in CAD systems

Date created: 
2014-04-04
Abstract: 

Scripting has become an integral part of design work in computer-aided design (CAD), especially with parametric systems. Designers who script face a steep learning and use curve due to the new (to them) script notation and the loss of direct manipulation of the model. Programming In the Model (PIM) is a prototype parametric CAD system with a live interface with side-by-side model and script windows; real-time updating of the script and the model; on-demand dependency, object and script representations in the model; and operation preview (lookahead). These features aim to break the steep learning and use curve of scripting into small steps and to bring programming and modeling tasks ‘closer together.’ A qualitative user study with domain experts and a focus group with HCI experts shows the importance of multi-directional live scripting and script localization within the model. Other PIM features show promise but require additional design work to create a better user experience.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Robert Woodbury
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Dissertation) Ph.D.

Collaborative Visual Analytics for public health: facilitating problem solving and supporting decision-making

Author: 
Date created: 
2014-04-23
Abstract: 

With advancement in information technology, health data are collected at an unprecedented rate. Accurate understanding, analysis and interpretation of complex, multidimensional data is critical to understand wicked health problems to make timely decisions and interventions. Injury problems as classified as wicked health problems, they are associated with numerous individual, social, environmental and policy related factors. Wicked injury problems are multidimensional and require a multidisciplinary approach for effective solutions. We studied the integration of Visual Analytics (VA) methods to solve wicked injury problems. The science of VA leverages information visualization techniques and computational analysis methods to facilitate understanding of heterogeneous data and support decisions about dynamic injury situations. We designed a proof-of-concept prototype - interactive Analytical Injury Dashboard (iAID) and demonstrated its application with injury stakeholders, using Canadian CHIRPP injury data. We adopted the Paired Analytics (PA) methodology to assess the interface design, layout and functionality of the iAID. Inspired by the Delphi method, the study adapted (PA) methodology and introduced a novel methodology - Group Analytics (GA), which was pilot tested and refined for the final research study design. GA was used to evaluate the impact of collaborative VA on facilitating problem solving and supporting decision-making within the injury sector. We conducted seven PA sessions and two GA sessions. Data included stakeholders observations, audio and video recordings, questionnaires and follow up interviews, and were analyzed to gain in-depth understanding of the collaborative VA process and its impact on problem solving and decision-making. Results demonstrated that iAID helped injury stakeholders to convert data into useful information, facilitate task completion, and support problem solving and decision-making. Based on the Joint Activity Theory and distributed cognition framework, analysis revealed that GA triggered the emergence of Common Ground among stakeholders, which evolved throughout the GA sessions to enhance their interactions, communication, coordination of joint activities and ultimately their collaboration on problem solving and decision-making. These findings will help inform the design of innovative VA tools that assist health professionals in analyzing and interpreting complex health data, and will introduce new metrics to enhance group collaboration to support timely decisions and actions.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Dr. Brian Fisher
Dr. Ian Pike
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Dissertation) Ph.D.

Quality-aware Service-Oriented Software Product Lines: Feature-Driven Process Configuration and Optimization

Author: 
Date created: 
2013-12-10
Abstract: 

Research initiative in Service-Oriented Computing aims at developing adaptable and scalable distributed applications and addressing challenges such as application integration, reusability, modularity, and interoperability. Service-Oriented Architecture (SOA) as an architectural style enables organizations to offer their application functionality as a service and enhance the adaptability to changes of new requirements of stakeholders, i.e., service consumers. Nowadays enterprises and service providers face several challenges to develop SOA-based solutions. They indispensably require to effectively manage variability in both functional and non-functional (quality) requirements at the business process level to rapidly and cost-effectively develop and deploy customized services that best meet the stakeholders' feature needs. SOAs provide the architectural underpinnings to support software reuse and enable variability at both design and run-time; however, they lack support to manage variability that promotes configurability and customization. Variability modeling and management have been the core research subjects in Software Product Line Engineering (SPLE) with the objective of addressing the issues of engineering and developing software-intensive systems. Combining SPLE and SOAs has been a subject of considerable research interest in recent years to develop highly configurable software systems.In this thesis, we adopt a product-line approach in the service domain and hypothesize that the SPLE paradigm, enabling variability management and systematic planned reuse, can be applied orthogonally to aid Service-Oriented Software Engineering (SOSE) to yield these benefits and construct Service-Oriented Software Product Lines (SOSPLs). We propose the Configurable Process Models as the realization of SOSPLs, where services are the building blocks for the implementation of software features, which provide support for variation among members of a product line configured based on stakeholders' requirements.Our proposed approach provides scalable and efficient automated decision-making support in the course of configuration helping to create tailored software services according to stakeholders’ preferences.The key contributions of this thesis are: (i) a systematic analysis of the state-of-the-art research; (ii) a methodology to support variability modeling and management for the development of an SOSPL; (iii) a quality model and evaluation method; (iv) a framework supporting automatic quality-aware process configuration; and (v) an empirical evaluation of performance and scalability of approach.

Document type: 
Thesis
File(s): 
Senior supervisor: 
Marek Hatala
Department: 
Communication, Art & Technology: School of Interactive Arts and Technology
Thesis type: 
(Thesis) Ph.D.