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Articles 1 - 11 of 11
Full-Text Articles in Computer Engineering
Snail Algorithm For Task Allocation In Mesh Networks, Bartosz Duszel
Snail Algorithm For Task Allocation In Mesh Networks, Bartosz Duszel
UNLV Theses, Dissertations, Professional Papers, and Capstones
Topic of this master's thesis is connected with task allocation algorithms and mesh networks. Author of this work has already graduated from Wroclaw, University of Technology (Poland) where during his studies he created software simulation environment for two different task allocation algorithms for mesh networks:Adaptive ScanandFrame Sliding. Those algorithms were compared by two, main parame- ters: simulation time and average mesh fulfillment (utilization level). All simulations were done in software environment which was developed specially for that research. This application was based on few, different types of objects: task (width, height, processing time), task queue (different number of tasks), task …
Computer-Based Stereoscopic Parts Recognition For Robotic Applications, Ahmad A. Fayed
Computer-Based Stereoscopic Parts Recognition For Robotic Applications, Ahmad A. Fayed
UNLV Theses, Dissertations, Professional Papers, and Capstones
Most of robotic handling and assembly operations are based on sensors such as range and touch sensors. In certain circumstances, such as in the presence of ionizing radiation where most customary sensors will degrade over time due to radiation exposure, these sensors won't function properly. Utilizing two or more cameras (stereo vision) located outside the target zone and analyzing their images to identify location and dimensions of parts within the robot workspace is an alternative for using sensors. Object Recognition is affected by the light condition which oftentimes causes the gray-scale or red, green, and blue values to have a …
Nonlinear Adaptive Diffusion Models For Image Denoising, Ajay Kumar Mandava
Nonlinear Adaptive Diffusion Models For Image Denoising, Ajay Kumar Mandava
UNLV Theses, Dissertations, Professional Papers, and Capstones
Most of digital image applications demand on high image quality. Unfortunately, images often are degraded by noise during the formation, transmission, and recording processes. Hence, image denoising is an essential processing step preceding visual and automated analyses. Image denoising methods can reduce image contrast, create block or ring artifacts in the process of denoising. In this dissertation, we develop high performance non-linear diffusion based image denoising methods, capable to preserve edges and maintain high visual quality. This is attained by different approaches: First, a nonlinear diffusion is presented with robust M-estimators as diffusivity functions. Secondly, the knowledge of textons derived …
On High-Performance Parallel Fixed-Point Decimal Multiplier Designs, Ming Zhu
On High-Performance Parallel Fixed-Point Decimal Multiplier Designs, Ming Zhu
UNLV Theses, Dissertations, Professional Papers, and Capstones
High-performance, area-efficient hardware implementation of decimal multiplication is preferred to slow software simulations in a number of key scientific and financial application areas, where errors caused by converting decimal numbers into their approximate binary representations are not acceptable.
Multi-digit parallel decimal multipliers involve two major stages: (i) the partial product generation (PPG) stage, where decimal partial products are determined by selecting the right versions of the pre-computed multiples of the multiplicand, followed by (ii) the partial product accumulation (PPA) stage, where all the partial products are shifted and then added together to obtain the final multiplication product. In this thesis, …
An End To End V.M.T Framework With Controlled V.M.T Tax Rate Using Optimal Feedback Control Technique, Pratik Verma
An End To End V.M.T Framework With Controlled V.M.T Tax Rate Using Optimal Feedback Control Technique, Pratik Verma
UNLV Theses, Dissertations, Professional Papers, and Capstones
Vehicle Mile Travel (VMT) is a study related to available alternatives for the road
revenue collection system. As per the demand, the existing Gas/Fuel tax based revenue
collection system is not found an appropriate option in the longer run. Due
to existing system constraints like: no eective tax process for vehicles based on alternative
fuel (e.g. electric vehicles), no eective changes in tax due to economical
ination, and more highway expenditure than generated revenue, an alternative revenue
collection mechanism is required. Hence, the objective is to study an alternative
option in detail, which can address the gaps between required revenue …
High-Performance, Scalable Optical Network-On-Chip Architectures, Xianfang Tan
High-Performance, Scalable Optical Network-On-Chip Architectures, Xianfang Tan
UNLV Theses, Dissertations, Professional Papers, and Capstones
The rapid advance of technology enables a large number of processing cores to be integrated into a single chip which is called a Chip Multiprocessor (CMP) or a Multiprocessor System-on-Chip (MPSoC) design. The on-chip interconnection network, which is the communication infrastructure for these processing cores, plays a central role in a many-core system. With the continuously increasing complexity of many-core systems, traditional metallic wired electronic networks-on-chip (NoC) became a bottleneck because of the unbearable latency in data transmission and extremely high energy consumption on chip. Optical networks-on-chip (ONoC) has been proposed as a promising alternative paradigm for electronic NoC with …
Communication Artifacts And Interaction Evaluation For Requirements Engineering, Miloslava Plachkinova
Communication Artifacts And Interaction Evaluation For Requirements Engineering, Miloslava Plachkinova
UNLV Theses, Dissertations, Professional Papers, and Capstones
This paper aims to answer an important question regarding the development of new information systems (IS): "What is the predominant factor for the selection of communication artifacts for requirements engineering (RE)?". Many researchers have focused on the RE and communication as separate disciplines, but little or no research addressed the RE communication issues. These problems are important because they often lead to misunderstanding and misinterpretation of the gathered requirements. We develop expectations about the RE communication process based on prior literature from both disciplines and we test them through several case studies. Our methodology consists of analysis of six case …
An Online Algorithm For The 2-Server Problem On The Line With Improved Competitiveness, Lucas Adam Bang
An Online Algorithm For The 2-Server Problem On The Line With Improved Competitiveness, Lucas Adam Bang
UNLV Theses, Dissertations, Professional Papers, and Capstones
In this thesis we present a randomized online algorithm for the 2-server problem on the line, named R-LINE (for Randomized Line). This algorithm achieves the lowest competitive ratio of any known randomized algorithm for the 2-server problem on the line.
The competitiveness of R-LINE is less than 1.901. This result provides a significant improvement over the previous known competitiveness of 155/78 (approximately 1.987), by Bartal, Chrobak, and Larmore, which was the first randomized algorithm for the 2-server problem one the line with competitiveness less than 2. Taking inspiration from this algorithm,we improve this result by utilizing ideas from T-theory, game …
Modeling And Architectural Simulations Of The Statistical Static Timing Analysis Of The Variation Sources For Vlsi Circuits, Abu M. Baker
Modeling And Architectural Simulations Of The Statistical Static Timing Analysis Of The Variation Sources For Vlsi Circuits, Abu M. Baker
College of Engineering: Graduate Celebration Programs
As CMOS technology scales down, process variation introduces significant uncertainty in power and performance to VLSI circuits and significantly affects their reliability. Although Static-Timing Analysis (STA) remains an excellent tool, current trends in process scaling have imposed significant difficulties to STA. As one of the promising solutions, Statistical static timing analysis (SSTA) has become the frontier research topic in recent years in combating such variation effects. This poster will be focusing on two aspects of SSTA and its applications in VLSI designs: (1) Statistical timing modeling and analysis; and (2) Architectural implementations of the atomic operations (max and add) using …
On High-Performance Parallel Decimal Fixed-Point Multiplier Designs, Ming Zhu
On High-Performance Parallel Decimal Fixed-Point Multiplier Designs, Ming Zhu
College of Engineering: Graduate Celebration Programs
Decimal computations are required in finance, and etc.
- Precise representation for decimals (E.g. 0.2, 0.7… )
- Performance Requirements (Software simulations are very slow)
A P2p Computing System For Overlay Networks, Grzegorz Chmaj, Krzysztof Walkowiak
A P2p Computing System For Overlay Networks, Grzegorz Chmaj, Krzysztof Walkowiak
Electrical & Computer Engineering Faculty Research
A distributed computing system is able to perform data computation and distribution of results at the same time. The input task is divided into blocks, which are then sent to system participants that offer their resources in order to perform calculations. Next, a partial result is sent back by the participants to the task manager (usually one central node). In the case when system participants want to get the final result, the central node may become overloaded, especially if many nodes request the result at the same time. In this paper we propose a novel distributed computation system, which does …