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- Title
- GEOMETRIC INVARIANCE IN THE ANALYSIS OF HUMAN MOTION IN VIDEO DATA.
- Creator
-
Shen, Yuping, Foroosh, Hassan, University of Central Florida
- Abstract / Description
-
Human motion analysis is one of the major problems in computer vision research. It deals with the study of the motion of human body in video data from different aspects, ranging from the tracking of body parts and reconstruction of 3D human body configuration, to higher level of interpretation of human action and activities in image sequences. When human motion is observed through video camera, it is perspectively distorted and may appear totally different from different viewpoints. Therefore...
Show moreHuman motion analysis is one of the major problems in computer vision research. It deals with the study of the motion of human body in video data from different aspects, ranging from the tracking of body parts and reconstruction of 3D human body configuration, to higher level of interpretation of human action and activities in image sequences. When human motion is observed through video camera, it is perspectively distorted and may appear totally different from different viewpoints. Therefore it is highly challenging to establish correct relationships between human motions across video sequences with different camera settings. In this work, we investigate the geometric invariance in the motion of human body, which is critical to accurately understand human motion in video data regardless of variations in camera parameters and viewpoints. In human action analysis, the representation of human action is a very important issue, and it usually determines the nature of the solutions, including their limits in resolving the problem. Unlike existing research that study human motion as a whole 2D/3D object or a sequence of postures, we study human motion as a sequence of body pose transitions. We also decompose a human body pose further into a number of body point triplets, and break down a pose transition into the transition of a set of body point triplets. In this way the study of complex non-rigid motion of human body is reduced to that of the motion of rigid body point triplets, i.e. a collection of planes in motion. As a result, projective geometry and linear algebra can be applied to explore the geometric invariance in human motion. Based on this formulation, we have discovered the fundamental ratio invariant and the eigenvalue equality invariant in human motion. We also propose solutions based on these geometric invariants to the problems of view-invariant recognition of human postures and actions, as well as analysis of human motion styles. These invariants and their applicability have been validated by experimental results supporting that their effectiveness in understanding human motion with various camera parameters and viewpoints.
Show less - Date Issued
- 2009
- Identifier
- CFE0002945, ucf:47970
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002945
- Title
- EFFECT OF A HUMAN-TEACHER VS. A ROBOT-TEACHER ON HUMAN LEARNING: A PILOT STUDY.
- Creator
-
Smith, Melissa, Sims, Valerie, University of Central Florida
- Abstract / Description
-
Studies about the dynamics of human-robot interactions have increased within the past decade as robots become more integrated into the daily lives of humans. However, much of the research into learning and robotics has been focused on methods that would allow robots to learn from humans and very little has been done on how and what, if possible, humans could learn from programmed robots. A between-subjects experiment was conducted, in which two groups were compared: a group where the...
Show moreStudies about the dynamics of human-robot interactions have increased within the past decade as robots become more integrated into the daily lives of humans. However, much of the research into learning and robotics has been focused on methods that would allow robots to learn from humans and very little has been done on how and what, if possible, humans could learn from programmed robots. A between-subjects experiment was conducted, in which two groups were compared: a group where the participants learned a simple pick-and-place block task via video of a human-teacher and a group where the participants learned the same pick-and-place block task via video from a robotic-teacher. After being the taught the task, the participants performed a 15-minute distracter task and then were timed in their reconstruction of the block configuration. An exit survey asking about their level of comfort learning from robot and computer entities was given upon completion. Results showed that there was no significant difference in the rebuild scores of the two groups, but there was a marginally significant difference in the rebuild times of the two groups. Exit survey results, research implications, and future work are discussed.
Show less - Date Issued
- 2011
- Identifier
- CFH0004068, ucf:44809
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004068
- Title
- EXAMINING THE LEGALITY OF THE GUANT�NAMO BAY DETENTION CENTER ACCORDING TO INTERNATIONAL HUMANITARIAN LAW AND INTERNATIONAL HUMAN RIGHTS LAW.
- Creator
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Winchester, Sydney T, Bledsoe, Robert, University of Central Florida
- Abstract / Description
-
The purpose of this research paper is to examine how international humanitarian law (IHL) and international human rights law (IHRL) are applied to the Guanta?namo Bay detention center. This paper was completed through the research of international treaties, court cases, and secondary sources that thoroughly discussed issues pertaining to Guanta?namo and international law. This paper first examines the differences between the two laws by looking at the particular roles each is meant to play in...
Show moreThe purpose of this research paper is to examine how international humanitarian law (IHL) and international human rights law (IHRL) are applied to the Guanta?namo Bay detention center. This paper was completed through the research of international treaties, court cases, and secondary sources that thoroughly discussed issues pertaining to Guanta?namo and international law. This paper first examines the differences between the two laws by looking at the particular roles each is meant to play in the subject of international law, as well as how the two have been applied thus far to the situation at Guanta?namo. Second, the paper discusses the topic of whether or not IHL and IHRL should be mutually exclusive, or can be interpreted alongside each other. In addition, a discussion of the opposing viewpoints on this topic will be presented including the United States argument of lex specialis, and the opposing arguments of the international community. Chapter three will cover the topic of extraterritorial application and how it affects the international treaties and court cases that deal with issues pertinent to Guanta?namo. The fourth chapter discusses the effects that Guanta?namo has on the reputation of the United States internationally, and how it affects human rights around the world. Chapter five discusses possible recommendations in order to achieve the long-term goal of ending the Guantanamo Bay controversy, and protecting and promoting human rights everywhere.
Show less - Date Issued
- 2016
- Identifier
- CFH2000134, ucf:45952
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000134
- Title
- Applied Error Related Negativity: Single Electrode Electroencephalography in Complex Visual Stimuli.
- Creator
-
Sawyer, Benjamin, Karwowski, Waldemar, Hancock, Peter, Xanthopoulos, Petros, University of Central Florida
- Abstract / Description
-
Error related negativity (ERN) is a pronounced negative evoked response potential (ERP) that follows a known error. This neural pattern has the potential to communicate user awareness of incorrect actions within milliseconds. While the implications for human-machine interface and augmented cognition are exciting, the ERN has historically been evoked only in the laboratory using complex equipment while presenting simple visual stimuli such as letters and symbols. To effectively harness the...
Show moreError related negativity (ERN) is a pronounced negative evoked response potential (ERP) that follows a known error. This neural pattern has the potential to communicate user awareness of incorrect actions within milliseconds. While the implications for human-machine interface and augmented cognition are exciting, the ERN has historically been evoked only in the laboratory using complex equipment while presenting simple visual stimuli such as letters and symbols. To effectively harness the applied potential of the ERN, detection must be accomplished in complex environments using simple, preferably single-electrode, EEG systems feasible for integration into field and workplace-ready equipment. The present project attempted to use static photographs to evoke and successfully detect the ERN in a complex visual search task: motorcycle conspicuity. Drivers regularly fail to see motorcycles, with tragic results. To reproduce the issue in the lab, static pictures of traffic were presented, either including or not including motorcycles. A standard flanker letter task replicated from a classic ERN study (Gehring et al., 1993) was run alongside, with both studies requiring a binary response. Results showed that the ERN could be clearly detected in both tasks, even when limiting data to a single electrode in the absence of artifact correction. These results support the feasibility of applied ERN detection in complex visual search in static images. Implications and opportunities will be discussed, limitations of the study explained, and future directions explored.
Show less - Date Issued
- 2014
- Identifier
- CFE0005885, ucf:50886
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005885
- Title
- THIS MUST BE THE PLACE.
- Creator
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Feinman, Jesse S, Hubbard, Susan, University of Central Florida
- Abstract / Description
-
This Must Be the Place is a collection of short stories that take place in Massachusetts, America. Each story exists as a subtle celebration of the ordinary moments of our lives that softly, and gradually, shape us over time. This testament to the every-day is characterized by detailed, tender depictions of brief conversations, picnics in parks, afternoon car rides, and trips to the grocery store with past lovers. Although the narrators and other orbiting characters in the stories are all...
Show moreThis Must Be the Place is a collection of short stories that take place in Massachusetts, America. Each story exists as a subtle celebration of the ordinary moments of our lives that softly, and gradually, shape us over time. This testament to the every-day is characterized by detailed, tender depictions of brief conversations, picnics in parks, afternoon car rides, and trips to the grocery store with past lovers. Although the narrators and other orbiting characters in the stories are all different, they are bound together by an insatiable curiosity and fascination with the world and the human condition. Inspired by works from authors such as Raymond Carver, Richard Brautigan, William Trevor, Carrie Fountain, and Andre Dubus, This Must Be the Place is a comment on how we, as people, are as defined by the decisions we do not make as the ones that we do. The characters in each piece confront choices and the invariable emotional consequences that will follow them, either temporarily or for the foreseeable future. These consequences propel the narratives, causing anxiety, uncertainty, and at times even excitement for all of those involved. Similarly, and perhaps more importantly, because of these consequences, the gears of the characters' hearts shift, ever so slightly, in new, unexplored directions. As a whole, This Must Be the Place is about the understated importance embedded in every connection, misconnection, beginning, and ending.
Show less - Date Issued
- 2017
- Identifier
- CFH2000258, ucf:46056
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000258
- Title
- THE IMPACT OF MENTAL TRANSFORMATION TRAINING ACROSS LEVELS OF AUTOMATION ON SPATIAL AWARENESS IN HUMAN-ROBOT INTERACTION.
- Creator
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Rehfeld, Sherri, Jentsch, Florian, University of Central Florida
- Abstract / Description
-
One of the problems affecting robot operators' spatial awareness involves their ability to infer a robot's location based on the views from on-board cameras and other electro-optic systems. To understand the vehicle's location, operators typically need to translate images from a vehicle's camera into some other coordinates, such as a location on a map. This translation requires operators to relate the view by mentally rotating it along a number of axes, a task that is both...
Show moreOne of the problems affecting robot operators' spatial awareness involves their ability to infer a robot's location based on the views from on-board cameras and other electro-optic systems. To understand the vehicle's location, operators typically need to translate images from a vehicle's camera into some other coordinates, such as a location on a map. This translation requires operators to relate the view by mentally rotating it along a number of axes, a task that is both attention-demanding and workload-intensive, and one that is likely affected by individual differences in operator spatial abilities. Because building and maintaining spatial awareness is attention-demanding and workload-intensive, any variable that changes operator workload and attention should be investigated for its effects on operator spatial awareness. One of these variables is the use of automation (i.e., assigning functions to the robot). According to Malleable Attentional Resource Theory (MART), variation in workload across levels of automation affects an operator's attentional capacity to process critical cues like those that enable an operator to understand the robot's past, current, and future location. The study reported here focused on performance aspects of human-robot interaction involving ground robots (i.e., unmanned ground vehicles, or UGVs) during reconnaissance tasks. In particular, this study examined how differences in operator spatial ability and in operator workload and attention interacted to affect spatial awareness during human-robot interaction (HRI). Operator spatial abilities were systematically manipulated through the use of mental transformation training. Additionally, operator workload and attention were manipulated via the use of three different levels of automation (i.e., manual control, decision support, and full automation). Operator spatial awareness was measured by the size of errors made by the operators, when they were tasked to infer the robot's location from on-board camera views at three different points in a sequence of robot movements through a simulated military operation in urban terrain (MOUT) environment. The results showed that mental transformation training increased two areas of spatial ability, namely mental rotation and spatial visualization. Further, spatial ability in these two areas predicted performance in vehicle localization during the reconnaissance task. Finally, assistive automation showed a benefit with respect to operator workload, situation awareness, and subsequently performance. Together, the results of the study have implications with respect to the design of robots, function allocation between robots and operators, and training for spatial ability. Future research should investigate the interactive effects on operator spatial awareness of spatial ability, spatial ability training, and other variables affecting operator workload and attention.
Show less - Date Issued
- 2006
- Identifier
- CFE0001468, ucf:47102
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001468
- Title
- ORIENTING OF VISUAL-SPATIAL ATTENTION WITH AUGMENTED REALITY: EFFECTS OF SPATIAL AND NON-SPATIAL MULTI-MODAL CUES.
- Creator
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Jerome, Christian, Mouloua, Mustapha, University of Central Florida
- Abstract / Description
-
Advances in simulation technology have brought about many improvements to the way we train tasks, as well as how we perform tasks in the operational field. Augmented reality (AR) is an example of how to enhance the user's experience in the real world with computer generated information and graphics. Visual search tasks are known to be capacity demanding and therefore may be improved by training in an AR environment. During the experimental task, participants searched for enemies (while...
Show moreAdvances in simulation technology have brought about many improvements to the way we train tasks, as well as how we perform tasks in the operational field. Augmented reality (AR) is an example of how to enhance the user's experience in the real world with computer generated information and graphics. Visual search tasks are known to be capacity demanding and therefore may be improved by training in an AR environment. During the experimental task, participants searched for enemies (while cued from visual, auditory, tactile, combinations of two, or all three modality cues) and tried to shoot them while avoiding shooting the civilians (fratricide) for two 2-minute low-workload scenarios, and two 2-minute high-workload scenarios. The results showed significant benefits of attentional cuing on visual search task performance as revealed by benefits in reaction time and accuracy from the presence of the haptic cues and auditory cues when displayed alone and the combination of the visual and haptic cues together. Fratricide occurrence was shown to be amplified by the presence of the audio cues. The two levels of workload produced differences within individual's task performance for accuracy and reaction time. Accuracy and reaction time were significantly better with the medium cues than all the others and the control condition during low workload and marginally better during high workload. Cue specificity resulted in a non-linear function in terms of performance in the low workload condition. These results are in support of Posner's (1978) theory that, in general, cueing can benefit locating targets in the environment by aligning the attentional system with the visual input pathways. The cue modality does not have to match the target modality. This research is relevant to potential applications of AR technology. Furthermore, the results identify and describe perceptual and/or cognitive issues with the use of displaying computer generated augmented objects and information overlaid upon the real world. The results also serve as a basis for providing a variety of training and design recommendations to direct attention during military operations. Such recommendations include cueing the Soldier to the location of hazards, and mitigating the effects of stress and workload.
Show less - Date Issued
- 2006
- Identifier
- CFE0001481, ucf:47092
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001481
- Title
- A DYNAMIC MODEL OF THE HUMAN/COOLINGSYSTEM/CLOTHING/ENVIRONMENT SYSTEM.
- Creator
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pu, zhengxiang, Kapat, Jayanta, University of Central Florida
- Abstract / Description
-
The human body compensates well for moderate climatic heat stress, but artificial environments often block or overwhelm physiological defense mechanism. Personal protective equipment (PPE) is one of sources of heat stress. It protects individual from chemical, physical, or biological hazards, but the high thermal insulation and low vapor permeability of PPE may also lead to substantial heat stress. Personal cooling is widely used to alleviate heat stress, especially for those situations where...
Show moreThe human body compensates well for moderate climatic heat stress, but artificial environments often block or overwhelm physiological defense mechanism. Personal protective equipment (PPE) is one of sources of heat stress. It protects individual from chemical, physical, or biological hazards, but the high thermal insulation and low vapor permeability of PPE may also lead to substantial heat stress. Personal cooling is widely used to alleviate heat stress, especially for those situations where ambient environmental cooling is not economically viable or feasible. It is important to predict the physiological responses of a person wearing PPE with personal cooling to make sure that the individual is free of heat stress, as well as any additional discomfort that may occur. Air temperature, radiant temperature, humidity and air movement are the four basic environmental parameters that affect human response to thermal environments. Combined with the personal parameters of metabolic heat generated by human activity and clothing worn by a person, they provide the six fundamental factors which define human thermal environments. If personal cooling system is available, the fluid flow speed, cooling tube distribution density and fluid inlet temperature have significant effects on the human thermal comfort. It is impractical to evaluate the problem experimentally due to too many factors involved. A thermal model was developed to improve human body thermal comfort prediction. The system researched includes human body, personal cooling system, clothing and environment. An existing model of thermoregulation is taken as a starting point. Changes and additions are made to provide better prediction. Personal cooling model was developed and it includes liquid cooling model, air cooling model and ice cooling model. Thermal resistance networks for the cooling system are built up; additionally a combined model of heat and mass transfer from cooling garment through clothing to environment is developed and incorporated into the personal cooling model and thermoregulatory model. The control volume method is employed to carry out the numerical calculation. An example simulation is presented for extra-vehicular activities on Mars. The simulation results agree well with available experimental data, though a small discrepancy between simulation results and experimental data is observed during the beginning of the cooling process. Compared with a water cooling lumped model, the thermal model provides a much better prediction. For water cooling, parametric study shows that the cooling water inlet temperature and liner thermal resistance have great effects on the maximum exposure time; PPE resistance and cooling water flow rate do not have much impact on the maximum exposure time. For air cooling, cooling air flow rate, inlet temperature, relative humidity and liner resistance have great effects on the maximum exposure time.
Show less - Date Issued
- 2005
- Identifier
- CFE0000416, ucf:46407
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000416
- Title
- MODERATORS OF TRUST AND RELIANCE ACROSS MULTIPLE DECISION AIDS.
- Creator
-
Ross, Jennifer, Szalma, James, University of Central Florida
- Abstract / Description
-
The present work examines whether user's trust of and reliance on automation, were affected by the manipulations of user's perception of the responding agent. These manipulations included agent reliability, agent type, and failure salience. Previous work has shown that automation is not uniformly beneficial; problems can occur because operators fail to rely upon automation appropriately, by either misuse (overreliance) or disuse (underreliance). This is because operators often face...
Show moreThe present work examines whether user's trust of and reliance on automation, were affected by the manipulations of user's perception of the responding agent. These manipulations included agent reliability, agent type, and failure salience. Previous work has shown that automation is not uniformly beneficial; problems can occur because operators fail to rely upon automation appropriately, by either misuse (overreliance) or disuse (underreliance). This is because operators often face difficulties in understanding how to combine their judgment with that of an automated aid. This difficulty is especially prevalent in complex tasks in which users rely heavily on automation to reduce their workload and improve task performance. However, when users rely on automation heavily they often fail to monitor the system effectively (i.e., they lose situation awareness – a form of misuse). However, if an operator realizes a system is imperfect and fails, they may subsequently lose trust in the system leading to underreliance. In the present studies, it was hypothesized that in a dual-aid environment poor reliability in one aid would impact trust and reliance levels in a companion better aid, but that this relationship is dependent upon the perceived aid type and the noticeability of the errors made. Simulations of a computer-based search-and-rescue scenario, employing uninhabited/unmanned ground vehicles (UGVs) searching a commercial office building for critical signals, were used to investigate these hypotheses. Results demonstrated that participants were able to adjust their reliance and trust on automated teammates depending on the teammate's actual reliability levels. However, as hypothesized there was a biasing effect among mixed-reliability aids for trust and reliance. That is, when operators worked with two agents of mixed-reliability, their perception of how reliable and to what degree they relied on the aid was effected by the reliability of a current aid. Additionally, the magnitude and direction of how trust and reliance were biased was contingent upon agent type (i.e., 'what' the agents were: two humans, two similar robotic agents, or two dissimilar robot agents). Finally, the type of agent an operator believed they were operating with significantly impacted their temporal reliance (i.e., reliance following an automation failure). Such that, operators were less likely to agree with a recommendation from a human teammate, after that teammate had made an obvious error, than with a robotic agent that had made the same obvious error. These results demonstrate that people are able to distinguish when an agent is performing well but that there are genuine differences in how operators respond to agents of mixed or same abilities and to errors by fellow human observers or robotic teammates. The overall goal of this research was to develop a better understanding how the aforementioned factors affect users' trust in automation so that system interfaces can be designed to facilitate users' calibration of their trust in automated aids, thus leading to improved coordination of human-automation performance. These findings have significant implications to many real-world systems in which human operators monitor the recommendations of multiple other human and/or machine systems.
Show less - Date Issued
- 2008
- Identifier
- CFE0002077, ucf:47579
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002077
- Title
- DETERMINANTS OF HUMAN RESOURCES MANAGEMENT PERFORMANCE ON COUNTY EFFICIENCIES: A STUDY OF FLORIDA COUNTIES.
- Creator
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Davis, Janet, Lawther, Wendell, University of Central Florida
- Abstract / Description
-
Performance measurement has been adopted and implemented in the private sector as a tool to measure and improve performance. Performance measurement is relatively new to the public sector, yet counties could benefit from establishing performance measures. This study uses the 67 Florida counties to compare Human Resource performance measures to county efficiency measures through path analysis to assess the contribution compensation and recruitment practices have on county efficiency measures...
Show morePerformance measurement has been adopted and implemented in the private sector as a tool to measure and improve performance. Performance measurement is relatively new to the public sector, yet counties could benefit from establishing performance measures. This study uses the 67 Florida counties to compare Human Resource performance measures to county efficiency measures through path analysis to assess the contribution compensation and recruitment practices have on county efficiency measures of fiscal, process and technical efficiencies. It includes county contextual variables in the models. The data was collected via professional publications and organizations, survey and personal contacts and entered into a SPSS data set. Six path analyses were established 1) three for HR variables with the three county efficiency variables and 2) three for HR variables plus contextual variables with the three county efficiency variables. The compensation variable, annual salary adjustment, was statistically significant to county fiscal efficiency, in the HR to county fiscal efficiency and HR / contextual variables to county fiscal efficiency. None of the variables were statistically significant in the process efficiency models. Health costs were statistically significant in the county technical efficiency path analysis. When the county contextual variables were added, health costs, percentage of benefit to salary, county size and county wealth were statistically significant. The HR compensation variables impact county efficiency, either fiscal or technical.
Show less - Date Issued
- 2008
- Identifier
- CFE0002053, ucf:47603
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002053
- Title
- EMOTIONAL EVALUATION OF A PRODUCT/SYSTEM.
- Creator
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Smith, Hana, Sims, Valerie, University of Central Florida
- Abstract / Description
-
Technological advances in products and systems have brought emotional design or emotional engineering to the forefront of research. While several measures to assess emotional expression of products have been developed, the source of the emotion rating of a product or system was often unclear. The purpose of this dissertation is to conduct three studies to examine the causes of emotional ratings and to establish if product-specific emotion rating scales are useful for capturing accurate user...
Show moreTechnological advances in products and systems have brought emotional design or emotional engineering to the forefront of research. While several measures to assess emotional expression of products have been developed, the source of the emotion rating of a product or system was often unclear. The purpose of this dissertation is to conduct three studies to examine the causes of emotional ratings and to establish if product-specific emotion rating scales are useful for capturing accurate user evaluations. Three studies were conducted using citrus juicers. Juicers were chosen for several reasons: their wide variety of styles, one self-explanatory purpose (to make juice), and the fact that their benign nature is unlikely to harm participants. Study 1 isolated juicers that had unique emotion profiles to use in the Study 2. Participants rated 41 juicers with fourteen product-specific emotions. Participants predominantly used "five" of the fourteen emotions in their juicer ratings. Ten juicers with the highest rating consensus, within these five emotions, were chosen for Study 2. Study 2 determined that anthropomorphic tendencies are predictive of emotional ratings. Extreme Anthropomorphism from the Anthropomorphic Tendency Scale (ATS) was used to test individual differences (Sims et al. 2005;Chin et al., 2005). Individuals with low anthropomorphic tendencies were more critical of the products. Sex differences also were analyzed, and significant interactions were found. Women exhibited different preferences for juicers than me. First impression ratings from Study 1 were validated by first impression ratings from Study 2. Finally, Study 3 measured the impact of product interaction on emotional ratings. Participants used seven juicers to make a minimum of four ounces of juice. Pre and post-interaction ratings were compared to determine the effect of interaction on the emotional appraisal of products. The results confirmed that interaction had an impact on affective ratings. As opposed to experienced users, novice users deviated in their pre-post appraisal, especially on aesthetically boring but highly usable products. Novice users based their entire initial appraisal on aesthetics, while experienced users were influenced by their past experience. Humans rely on past experience to recall likes or dislikes. The findings here suggest that aesthetic appraisal of products (or other environments) will remain influenced by past exposure/experience with those or similar products. Thus, only true novices can remain unbiased by past experience for aesthetic appraisal and capture a true 'first impression'. Also, past experience of users should be assessed when conducting research that relies on emotional appraisal of products. These findings may be especially useful in product development where new designs are based on a golden standard, competition, or go through several iterations of testing. The results may be used to guide human factors professionals to develop measures that more accurately capture affective ratings, and thus create more pleasurable products and systems.
Show less - Date Issued
- 2008
- Identifier
- CFE0002175, ucf:47513
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002175
- Title
- A HOLISTIC USABILITY FRAMEWORK FOR DISTRIBUTED SIMULATION SYSTEMS.
- Creator
-
Dawson, Jeffrey, Rabelo, Luis, University of Central Florida
- Abstract / Description
-
This dissertation develops a holistic usability framework for distributed simulation systems (DSSs). The framework is developed considering relevant research in human-computer interaction, computer science, technical writing, engineering, management, and psychology. The methodology used consists of three steps: (1) framework development, (2) surveys of users to validate and refine the framework, and to determine attribute weights, and (3) application of the framework to two real-world systems...
Show moreThis dissertation develops a holistic usability framework for distributed simulation systems (DSSs). The framework is developed considering relevant research in human-computer interaction, computer science, technical writing, engineering, management, and psychology. The methodology used consists of three steps: (1) framework development, (2) surveys of users to validate and refine the framework, and to determine attribute weights, and (3) application of the framework to two real-world systems. The concept of a holistic usability framework for DSSs arose during a project to improve the usability of the Virtual Test Bed, a prototypical DSS, and the framework is partly a result of that project. In addition, DSSs at Ames Research Center were studied for additional insights. The framework has six dimensions: end user needs, end user interface(s), programming, installation, training, and documentation. The categories of participants in this study include managers, researchers, programmers, end users, trainers, and trainees. The first survey was used to obtain qualitative and quantitative data to validate and refine the framework. Attributes that failed the validation test were dropped from the framework. A second survey was used to obtain attribute weights. The refined framework was used to evaluate two existing DSSs, measuring their holistic usabilities. Ensuring that the needs of the variety of types of users who interact with the system during design, development, and use are met is important to launch a successful system. Adequate consideration of system usability along the several dimensions in the framework will not only ensure system success but also increase productivity, lower life cycle costs, and result in a more pleasurable working experience for people who work with the system.
Show less - Date Issued
- 2006
- Identifier
- CFE0001256, ucf:46906
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001256
- Title
- MARSILIO FICINO'S ASTRAL PSYCHOLOGY: THE INNER COSMOS OF CARDINAL ALESSANDRO FARNESE ON THE ASTRONOMICAL CEILING FRESCO OF SALA DEL MAPPAMONDO AT CAPRAROLA.
- Creator
-
Nagy, Renata R, Zaho, Margaret, University of Central Florida
- Abstract / Description
-
This thesis intends to explore the relationship between the Neoplatonist doctrines of the Renaissance philosopher, Marsilio Ficino (1433-1499), and astrological images in the Renaissance. The astrological ceiling fresco located in the Room of Maps in the Villa Farnese at Caprarola is in the center of the argument, which I analyze based on the metaphysical works of Ficino, the Platonic Theology (1482) and the Three Books on Life (1492). Authors have examined the fresco decoration and Ficinian...
Show moreThis thesis intends to explore the relationship between the Neoplatonist doctrines of the Renaissance philosopher, Marsilio Ficino (1433-1499), and astrological images in the Renaissance. The astrological ceiling fresco located in the Room of Maps in the Villa Farnese at Caprarola is in the center of the argument, which I analyze based on the metaphysical works of Ficino, the Platonic Theology (1482) and the Three Books on Life (1492). Authors have examined the fresco decoration and Ficinian philosophy individually, but never together. This study is the first to recognize Ficino's influence on Renaissance astrological images in its entirety.The present work synthesizes scholarship on Ficino and astrological image interpretations and provides a Neoplatonic reading of the fresco in question. The results demonstrate that the ceiling fresco at Caprarola is a visual manifestation of the principal Ficinian doctrines. The predominant decorative figures (Phaeton, Argo, Capella, and Jupiter) located at the four corners of the ceiling, communicate the importance of contemplation and introspection, the proper management of one's vices and virtues, and the immortality of the soul. Together, they comprise the microcosm of the patron, Cardinal Alessandro Farnese (1520-1589). The decoration provides an insight into the inner world of Cardinal Farnese and represents his dominant personality traits. In the end, he triumphs over his sins, and his good deeds enable his soul to ascend to the divine sphere. The current study opens the door to conducting psychoanalyses of other historical figures, who were major patrons of the art and involved with Ficino's philosophy.
Show less - Date Issued
- 2018
- Identifier
- CFH2000347, ucf:45739
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000347
- Title
- HUMAN CAPITAL EFFECT ON SECOND GENERATION IMMIGRANT ENTREPRENEURS.
- Creator
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Mazahaem Flores, Ali, Kutkut, Nasser, University of Central Florida
- Abstract / Description
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Interest in entrepreneurship has increased in the past few years as more schools are beginning to incorporate subject and degrees specializing in the area as well as individuals mobilizing into an entrepreneurial lifestyle due to the lack of opportunities in the standard workplace environment. Historically, immigrants have made up a large majority of entrepreneurs and it has been their primary way of upward mobility in society. The boom in high tech start-ups and other small businesses in the...
Show moreInterest in entrepreneurship has increased in the past few years as more schools are beginning to incorporate subject and degrees specializing in the area as well as individuals mobilizing into an entrepreneurial lifestyle due to the lack of opportunities in the standard workplace environment. Historically, immigrants have made up a large majority of entrepreneurs and it has been their primary way of upward mobility in society. The boom in high tech start-ups and other small businesses in the last decade have primarily been driven by children of immigrants. As a result of these recent trends this study analyses the foreign born children of immigrants and their entrepreneurial capacity. The intent of this study is to find to what extent human capital affects the entrepreneurial capacity of immigrant children, if any. By analyzing the Theory of Human Capital in Entrepreneurship and its main variables, the study aims to find their level of human capital. Through the gathering of recent population data, analysis of research journals, publications and books, we evaluate the level of human capital and how it affects the capacity of the individual. Historically, evidence has shown a correlation between the two and we hope to contribute to the research and better understand its role in our subject matter as well as bring more awareness to a topic that lacks information.
Show less - Date Issued
- 2013
- Identifier
- CFH0004401, ucf:45145
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004401
- Title
- ANIMAL CRUELTY: THE NEXUS BETWEEN ADMONISHABLE VIOLENCE AND SANCTIONABLE CRIMINAL ACTS.
- Creator
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Donis, Natalie, Pons, Irene, University of Central Florida
- Abstract / Description
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In recent years, animal cruelty has stirred into the limelight as society has given the issue further consideration. State and federal laws as well as the establishment of diverse non-governmental organizations exist to abate animal cruelty, but such institutions have lagged in creating effective control mechanisms in spite of the growth of this modern day pandemic. This thesis will discuss animal cruelty, the types of cruelty, legislative developments, correlation of animal cruelty to...
Show moreIn recent years, animal cruelty has stirred into the limelight as society has given the issue further consideration. State and federal laws as well as the establishment of diverse non-governmental organizations exist to abate animal cruelty, but such institutions have lagged in creating effective control mechanisms in spite of the growth of this modern day pandemic. This thesis will discuss animal cruelty, the types of cruelty, legislative developments, correlation of animal cruelty to violence among humans, and ways to strengthen control mechanisms. Credible findings have indicated a propensity for offenders of animal cruelty to escalate their acts of violence towards a human. Although animal cruelty has made a modest impression on society, a significant segment of our population nevertheless shares the belief that animals are property lacking a holistic set of basic rights, which in turn perpetuates egregious forms of abuse towards animals. Said abuses will be thoroughly reviewed in this thesis with the intent of bringing a collective consciousness to the reader of the extensive types of abuses animals are subjugated to by some of the most heinous offenders. Then, a discussion will proceed of the hoisting impact animal cruelty has in galvanizing violence towards humans. By meticulously analyzing a variety of empirical research showing the overarching effects of animal cruelty as well as by analyzing state and federal laws that have been hindered tepid enforcement control mechanisms over the years, this thesis will argue for an overhaul of enforcement mechanisms so as to cause broader circumvention of animal cruelty. While research shows that there has been a growth in awareness by another significant segment of the population as to gravity of the situation dealing with the mistreatment of animals in our society, there still remains insufficient societal awareness and governmental power to abundantly curtail this imminent problem. Only when society is enlightened with the dangers of animal cruelty and how it can have dire undulating effects within the community, will substantial advancements be made to give animals the wide spectrum of rights they deserve. After conveying the societal necessity for change in constructively protecting animals, a discussion will ensue on the inadequacy of animal laws today. Then, a discussion will proceed on ways to strengthen animal rights in a manner that is reflective of the general cultural norms and values in this modern age. It is the intent of this thesis to affect change and begin a constructive discourse in society of how to mend the preceding errors of prior generations when dealing with animal abuse. While for a significant segment of the population the merit of such argumentation may rest solely in the notion that animals deserve certain basic rights, this thesis widens the purview of consciousness with the empirically-proven affirmation that animal violence can potentially lead to attacks against humans by people who progressively engage in anti-social acts. Thus, the nexus between admonishable violent acts and sanctionable criminal acts is intrinsically intertwined in the notion that animal abuse is a potential precursor to human abuse. In this light, even that segment of the population apathetic towards the plight of animals may not refute the importance of impugning any and all admonishable violent acts against animals into the realm of punitive criminal sanctions orchestrated by a governmental body empowered with seeking the common good -for to otherwise refute animal rights through this newly-endowed lens would be to refute human rights as well.
Show less - Date Issued
- 2013
- Identifier
- CFH0004476, ucf:45119
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004476
- Title
- HUMAN PAPILLOMAVIRUS AND VACCINATION OF MALES: KNOWLEDGE, BELIEFS AND PERCEPTIONS OF REGISTERED NURSES.
- Creator
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White, Leah, Waldrop, Julee, University of Central Florida
- Abstract / Description
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Background: Human papillomavirus (HPV) infections are the most common sexually transmitted infections in the world today. HPV has been identified as the cause of both cancer and genital warts. A vaccine to prevent select types of HPV infection was developed and approved for males and females ages 9 to 26. This vaccine has not been universally accepted by healthcare providers, parents, or the public and has lower vaccination coverage rates than other recommended vaccines for the same age group...
Show moreBackground: Human papillomavirus (HPV) infections are the most common sexually transmitted infections in the world today. HPV has been identified as the cause of both cancer and genital warts. A vaccine to prevent select types of HPV infection was developed and approved for males and females ages 9 to 26. This vaccine has not been universally accepted by healthcare providers, parents, or the public and has lower vaccination coverage rates than other recommended vaccines for the same age group. Multiple studies addressing the knowledge, perceptions, and beliefs of providers and parents regarding the vaccine have taken place. Only a few studies with the nursing profession are found in the literature and they do not look at the vaccine in regards to males. Nurses are seen as one of the most trustworthy of professions. What nurses know, perceive and believe can impact both patients and those they come in contact with on an informal basis. Objective: The purpose of this study is to determine knowledge, beliefs, and perceptions of registered nurses about the human papillomavirus and associated vaccination for males. Methodology: This study took place in February of 2013 and used a descriptive correlational design with a cross-sectional survey. The survey was administered online to alumni of the University of Central Florida (UCF) College of Nursing, members of the Theta Epsilon chapter of Sigma Theta Tau International Honor Society, and current graduate nursing students and faculty of UCF College of Nursing. There were one hundred and twelve Registered Nurses that participated in the study. Findings: Knowledge of HPV varied among respondents. The vast majority knew that HPV was a common sexually transmitted infection however less were knowledgeable on specific iii information about the vaccine. Less than eighty percent of study participants knew that the vaccine was available for both males and females. Close to ninety percent of respondents agreed that vaccinating males would be important to protect their future partners from complications associated with HPV, such as genital warts and cervical cancer, and to protect themselves from future complications, such as genital warts and cancers. Participants with doctoral degrees possessed a significantly more favorable attitude (p<0.001) towards vaccine use in males than those with a bachelors degree. Conclusions: Nurses in this study were knowledgeable about specific HPV information but were less knowledgeable about the extent of infection seen in males or the availability of the vaccine for males. This study found inaccuracies and lack of knowledge among Registered Nurses that demonstrates the need for education about HPV and the associated vaccine. While the attitudes of the respondents reflect favorably toward the vaccine, there is still a need for education among this population.
Show less - Date Issued
- 2013
- Identifier
- CFH0004467, ucf:45128
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004467
- Title
- MODELING SCENES AND HUMAN ACTIVITIES IN VIDEOS.
- Creator
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Basharat, Arslan, Shah, Mubarak, University of Central Florida
- Abstract / Description
-
In this dissertation, we address the problem of understanding human activities in videos by developing a two-pronged approach: coarse level modeling of scene activities and fine level modeling of individual activities. At the coarse level, where the resolution of the video is low, we rely on person tracks. At the fine level, richer features are available to identify different parts of the human body, therefore we rely on the body joint tracks. There are three main goals of this dissertation: ...
Show moreIn this dissertation, we address the problem of understanding human activities in videos by developing a two-pronged approach: coarse level modeling of scene activities and fine level modeling of individual activities. At the coarse level, where the resolution of the video is low, we rely on person tracks. At the fine level, richer features are available to identify different parts of the human body, therefore we rely on the body joint tracks. There are three main goals of this dissertation: (1) identify unusual activities at the coarse level, (2) recognize different activities at the fine level, and (3) predict the behavior for synthesizing and tracking activities at the fine level. The first goal is addressed by modeling activities at the coarse level through two novel and complementing approaches. The first approach learns the behavior of individuals by capturing the patterns of motion and size of objects in a compact model. Probability density function (pdf) at each pixel is modeled as a multivariate Gaussian Mixture Model (GMM), which is learnt using unsupervised expectation maximization (EM). In contrast, the second approach learns the interaction of object pairs concurrently present in the scene. This can be useful in detecting more complex activities than those modeled by the first approach. We use a 14-dimensional Kernel Density Estimation (KDE) that captures motion and size of concurrently tracked objects. The proposed models have been successfully used to automatically detect activities like unusual person drop-off and pickup, jaywalking, etc. The second and third goals of modeling human activities at the fine level are addressed by employing concepts from theory of chaos and non-linear dynamical systems. We show that the proposed model is useful for recognition and prediction of the underlying dynamics of human activities. We treat the trajectories of human body joints as the observed time series generated from an underlying dynamical system. The observed data is used to reconstruct a phase (or state) space of appropriate dimension by employing the delay-embedding technique. This transformation is performed without assuming an exact model of the underlying dynamics and provides a characteristic representation that will prove to be vital for recognition and prediction tasks. For recognition, properties of phase space are captured in terms of dynamical and metric invariants, which include the Lyapunov exponent, correlation integral, and correlation dimension. A composite feature vector containing these invariants represents the action and will be used for classification. For prediction, kernel regression is used in the phase space to compute predictions with a specified initial condition. This approach has the advantage of modeling dynamics without making any assumptions about the exact form (polynomial, radial basis, etc.) of the mapping function. We demonstrate the utility of these predictions for human activity synthesis and tracking.
Show less - Date Issued
- 2009
- Identifier
- CFE0002897, ucf:48042
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002897
- Title
- Agents of Change: Producing the Palpable from the Intangible through the Human Experience.
- Creator
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Anagnoson, Chealsea, Buyssens, Ryan, Watson, Keri, Adams, JoAnne, University of Central Florida
- Abstract / Description
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The world around us is in a continual state of change; we, as humans, are agents of change simply through our existence. Moreover, our choices become catalysts of change and have profound effects on our environments. This paper will use the chemical formula of glycolysis as an extended metaphor to expound the notion of the human existence in a continual state of change. C6H12O6 + 6(O2) --(>) 6(CO2) + 6(H2O) + ATP The above chemical formula represents glycolysis, a chemical reaction during...
Show moreThe world around us is in a continual state of change; we, as humans, are agents of change simply through our existence. Moreover, our choices become catalysts of change and have profound effects on our environments. This paper will use the chemical formula of glycolysis as an extended metaphor to expound the notion of the human existence in a continual state of change. C6H12O6 + 6(O2) --(>) 6(CO2) + 6(H2O) + ATP The above chemical formula represents glycolysis, a chemical reaction during which glucose (C6H12O6) and oxygen (6O2) combine to produce carbon dioxide (6CO2), water (6H2O), and energy (ATP). This is the first step in aerobic cellular respiration, a process that all complex organisms use to convert nutrients into usable energy.This formula metaphorically illustrates my creative process. Glucose represents the fabrication process through the combination of concepts (C6), materials (H12), and interactions (O6), with the addition of my own interactions with my environment (6O2) to produce a conceptual experience (6CO2) with a physically interactive component (6H2O) to elicit change (ATP). However, as in aerobic respiration, glycolysis is simply the first step; my finished work is only a beginning.
Show less - Date Issued
- 2017
- Identifier
- CFE0006712, ucf:51894
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006712
- Title
- Life, Death, and Awakening: As Seen in Reflections of Nature.
- Creator
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Parks, Diane, Poindexter, Carla, Kim, Joo, Kovach, Keith, Price, Mark, University of Central Florida
- Abstract / Description
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My objective, in undertaking this three year MFA degree has been to create and produce metaphorical paintings which communicate my deepest feelings about my personal experiences of life, death, and nature using various types of landscapes as subject matter. My goal has been to explore many processes of painting, using a range of color palettes to suggest and inspire emotional responses from viewers that are similar to my own. Ultimately my intention has been to share feelings of empathy...
Show moreMy objective, in undertaking this three year MFA degree has been to create and produce metaphorical paintings which communicate my deepest feelings about my personal experiences of life, death, and nature using various types of landscapes as subject matter. My goal has been to explore many processes of painting, using a range of color palettes to suggest and inspire emotional responses from viewers that are similar to my own. Ultimately my intention has been to share feelings of empathy between myself and a viewer through the art I've produced. This thesis body of work chronicles my three year journey.
Show less - Date Issued
- 2018
- Identifier
- CFE0007072, ucf:52002
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007072
- Title
- The Resonance and Residue of the First African American Newspaper: How Freedom's Journal Created Space in the Early 19th Century.
- Creator
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Kasper, Valerie, French, Scot, Vie, Stephanie, Grajeda, Anthony, Voss, Kimberly, University of Central Florida
- Abstract / Description
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The first African American newspaper, Freedom's Journal, has a historical, rhetorical, and spatial purpose. It not only showed the impact made by African Americans in the fight for their civil rights in the early 19th century, but as an artifact it illustrated and preserved that history allowing it to be studied centuries after the newspaper ceased printing. The purpose of The Resonance and Residue of the First African American Newspaper: How Freedom's Journal Created Space in the Early 19th...
Show moreThe first African American newspaper, Freedom's Journal, has a historical, rhetorical, and spatial purpose. It not only showed the impact made by African Americans in the fight for their civil rights in the early 19th century, but as an artifact it illustrated and preserved that history allowing it to be studied centuries after the newspaper ceased printing. The purpose of The Resonance and Residue of the First African American Newspaper: How Freedom's Journal Created Space in the Early 19th Century is to provide an interdisciplinary approach to historical newspapers that illustrates an alternative history in this country (-) a history of and by African Americans. By combining both print and digital research methods, new historical, rhetorical, and spatial information can be discovered that illustrates how the first African American newspaper fought against the influences of white society in the early 19th century and created a space for the black community that became meaningful enough to transform America into a place in which African Americans identified as Americans. Therefore, the purpose of this research is to combine traditional research and close reading with digital analysis (machine reading) by using different digital tools to illustrate how Freedom's Journal used text to combat the influences/powers that were shaping the early 19th century, and create a new and different type of historical narrative about how one oppressed community was successfully able to fight another dominant community through the use of text.
Show less - Date Issued
- 2018
- Identifier
- CFE0007028, ucf:52034
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007028
