5 resultados para RESOLUTIONS AND DECISIONS

em Digital Commons at Florida International University


Relevância:

90.00% 90.00%

Publicador:

Resumo:

The move from Standard Definition (SD) to High Definition (HD) represents a six times increases in data, which needs to be processed. With expanding resolutions and evolving compression, there is a need for high performance with flexible architectures to allow for quick upgrade ability. The technology advances in image display resolutions, advanced compression techniques, and video intelligence. Software implementation of these systems can attain accuracy with tradeoffs among processing performance (to achieve specified frame rates, working on large image data sets), power and cost constraints. There is a need for new architectures to be in pace with the fast innovations in video and imaging. It contains dedicated hardware implementation of the pixel and frame rate processes on Field Programmable Gate Array (FPGA) to achieve the real-time performance. ^ The following outlines the contributions of the dissertation. (1) We develop a target detection system by applying a novel running average mean threshold (RAMT) approach to globalize the threshold required for background subtraction. This approach adapts the threshold automatically to different environments (indoor and outdoor) and different targets (humans and vehicles). For low power consumption and better performance, we design the complete system on FPGA. (2) We introduce a safe distance factor and develop an algorithm for occlusion occurrence detection during target tracking. A novel mean-threshold is calculated by motion-position analysis. (3) A new strategy for gesture recognition is developed using Combinational Neural Networks (CNN) based on a tree structure. Analysis of the method is done on American Sign Language (ASL) gestures. We introduce novel point of interests approach to reduce the feature vector size and gradient threshold approach for accurate classification. (4) We design a gesture recognition system using a hardware/ software co-simulation neural network for high speed and low memory storage requirements provided by the FPGA. We develop an innovative maximum distant algorithm which uses only 0.39% of the image as the feature vector to train and test the system design. Database set gestures involved in different applications may vary. Therefore, it is highly essential to keep the feature vector as low as possible while maintaining the same accuracy and performance^

Relevância:

90.00% 90.00%

Publicador:

Resumo:

Introduction: The United States today has become "meeting-conscious." The complexity of conducting business has led to the need for sophisticated coordination of decision-making processes on all levels of the organization. Company meetings have played an increasingly important role in the success and future of many companies. Strategies and decisions are developed at meetings that can determine future policies of crucial importance. Executive training can mean the difference in whether the company will even survive. Large and growing companies have increased their off-premise meeting budgets annually in spite of the state of the economy. however, the rising costs of travel and lodging have made management monitor these budgets more closely than ever. Thus, the need to use every dollar efficiently has compelled companies to examine newer methods of running meetings and alternatives to the usage of typical off-premise meeting facilities. The importance of off-premise meetings in the United States economy has greatly increased due to the billions of dollars spent annually. These factors make it vital to explore the effectiveness of time and monetary expenditures. Up until the mid-1960's, company meetings were held in facilities of various design and purpose, none of which were specifically designed for the small to medium corporate meeting. Upon gathering information concerning the meetings market and the corporate meeting planner, certain individuals endeavored to change the situation. This study is designed to investigate this new concept, which will hereafter be referred to as "conference center." For the purpose of this study, the following two definitions will be used. 1. Conference center - that meeting facility primarily marketing its facilities for the small to medium-sized corporate meeting. The center is operated by specialists aware of market needs in as much detail as are those people working for the company involved. On-premise sleeping rooms are not mandatory provided such facilities are within easy access. 2. Meeting planner - that person within an organization who has primary responsibility for arranging off-premise meetings and all other related items necessary for meeting effectiveness. This person may spend anywhere from 10 to 100l of his time in this capacity. The conference center has effectively satisfied the need for specialized corporate meeting facilities. This study will show the depth of the corporate meetings market and trace the growth and development of this relatively new conference center concept. Information will also be compiled on the top centers in the country. It is hoped that by presenting this research meeting planners will become more aware of the nature and location of these centers, especially for use by the small to medium-sized company. Such exposure of the centers will hopefully increase existing demand and enable the construction of new, innovative centers.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

The ultimate intent of this dissertation was to broaden and strengthen our understanding of IT implementation by emphasizing research efforts on the dynamic nature of the implementation process. More specifically, efforts were directed toward opening the "black box" and providing the story that explains how and why contextual conditions and implementation tactics interact to produce project outcomes. In pursuit of this objective, the dissertation was aimed at theory building and adopted a case study methodology combining qualitative and quantitative evidence. Precisely, it examined the implementation process, use and consequences of three clinical information systems at Jackson Memorial Hospital, a large tertiary care teaching hospital.^ As a preliminary step toward the development of a more realistic model of system implementation, the study proposes a new set of research propositions reflecting the dynamic nature of the implementation process.^ Findings clearly reveal that successful implementation projects are likely to be those where key actors envision end goals, anticipate challenges ahead, and recognize the presence of and seize opportunities. It was also found that IT implementation is characterized by the systems theory of equifinality, that is, there are likely several equally effective ways to achieve a given end goal. The selection of a particular implementation strategy appears to be a rational process where actions and decisions are largely influenced by the degree to which key actors recognize the mediating role of each tactic and are motivated to action. The nature of the implementation process is also characterized by the concept of "duality of structure," that is, context and actions mutually influence each other. Another key finding suggests that there is no underlying program that regulates the process of change and moves it form one given point toward a subsequent and already prefigured end. For this reason, the implementation process cannot be thought of as a series of activities performed in a sequential manner such as conceived in stage models. Finally, it was found that IT implementation is punctuated by a certain indeterminacy. Results suggest that only when substantial efforts are focused on what to look for and think about, it is less likely that unfavorable and undesirable consequences will occur. ^

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Issues related to the composition of audit committees have attracted significant interest from legislators and regulators in recent years. In my dissertation, I examine one overlooked component of audit committee composition – namely, the presence of female directors on the audit committee. I empirically test to see if there are any differences in the functioning of audit committee when there is at least one female director on the audit committee. My dissertation examines three issues: audit committee diligence, audit pricing and earnings management. ^ The absence of females on corporate boards has become the focus of legislators in some countries. Prior research, in a variety of contexts, suggests that women are in general more conservative in their judgments and decisions. The first part of my dissertation empirically shows that the presence of at least one female director on the audit committee makes the audit committee have more meetings. The second essay empirically examines if there is a positive association between audit fees and the presence of female directors in the audit committee. I posit that having a female director on the audit committee will result in higher audit fees. I find no significant evidence to show that audit fees are higher when there is a female director on the audit committee. The third part of my dissertation empirically examines if there an association between the presence of a female director on the audit committee and earnings management. I find no significant evidence to show that the presence of female directors on the audit committee constrains earnings management. Overall, the results suggest that having a female on the audit committee changes the form – if not the substance – of audit committee functioning. ^

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Issues related to the composition of audit committees have attracted significant interest from legislators and regulators in recent years. In my dissertation, I examine one overlooked component of audit committee composition – namely, the presence of female directors on the audit committee. I empirically test to see if there are any differences in the functioning of audit committee when there is at least one female director on the audit committee. My dissertation examines three issues: audit committee diligence, audit pricing and earnings management. The absence of females on corporate boards has become the focus of legislators in some countries. Prior research, in a variety of contexts, suggests that women are in general more conservative in their judgments and decisions. The first part of my dissertation empirically shows that the presence of at least one female director on the audit committee makes the audit committee have more meetings. The second essay empirically examines if there is a positive association between audit fees and the presence of female directors in the audit committee. I posit that having a female director on the audit committee will result in higher audit fees. I find no significant evidence to show that audit fees are higher when there is a female director on the audit committee. The third part of my dissertation empirically examines if there an association between the presence of a female director on the audit committee and earnings management. I find no significant evidence to show that the presence of female directors on the audit committee constrains earnings management. Overall, the results suggest that having a female on the audit committee changes the form – if not the substance – of audit committee functioning.