Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Central Florida (18)
- Old Dominion University (10)
- Wright State University (7)
- University of Tennessee, Knoxville (6)
- Portland State University (5)
-
- University of Nevada, Las Vegas (5)
- California Polytechnic State University, San Luis Obispo (4)
- University of South Florida (4)
- Air Force Institute of Technology (3)
- Wayne State University (3)
- Singapore Management University (2)
- University of Arkansas, Fayetteville (2)
- University of Texas at El Paso (2)
- Western University (2)
- Munster Technological University (1)
- State University of New York College at Buffalo - Buffalo State College (1)
- The University of Southern Mississippi (1)
- University of Denver (1)
- University of Kentucky (1)
- University of New Orleans (1)
- Western Michigan University (1)
- William & Mary (1)
- Keyword
-
- Department of Computer Science and Engineering (7)
- Action recognition (2)
- Algorithms (2)
- Android (2)
- Applied sciences (2)
-
- CUDA (2)
- Computer vision (2)
- Correspondence (2)
- Data mining (2)
- FPGA (2)
- GPU (2)
- High performance computing (2)
- Optimization (2)
- Parallel (2)
- Security (2)
- Uav (2)
- 3-D tracking (1)
- Access control (1)
- Action (1)
- Adaptive training (1)
- Aerial image mosaics (1)
- Aerial video (1)
- Algebra (1)
- Android NDK (1)
- Apple data structure (1)
- Apple forensics (1)
- Apple partitions (1)
- Archive-It (1)
- Artificial evolution (1)
- Artificial life (1)
- Publication
-
- Electronic Theses and Dissertations (19)
- Browse all Theses and Dissertations (7)
- Dissertations and Theses (5)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (5)
- Doctoral Dissertations (4)
-
- USF Tampa Graduate Theses and Dissertations (4)
- Computational Modeling & Simulation Engineering Theses & Dissertations (3)
- Computer Engineering (3)
- Electrical & Computer Engineering Theses & Dissertations (3)
- Theses and Dissertations (3)
- Wayne State University Dissertations (3)
- Computer Science Theses & Dissertations (2)
- Dissertations (2)
- Dissertations and Theses Collection (Open Access) (2)
- Electronic Thesis and Dissertation Repository (2)
- Engineering Management & Systems Engineering Theses & Dissertations (2)
- Graduate Theses and Dissertations (2)
- Masters Theses (2)
- Open Access Theses & Dissertations (2)
- Dissertations, Theses, and Masters Projects (1)
- Industrial Technology Theses (1)
- Master's Theses (1)
- Theses (1)
- Theses and Dissertations--Computer Science (1)
- University of New Orleans Theses and Dissertations (1)
Articles 61 - 81 of 81
Full-Text Articles in Engineering
Leveraging Help Requests In Pomdp Intelligent Tutors, Jeremiah Folsom-Kovarik
Leveraging Help Requests In Pomdp Intelligent Tutors, Jeremiah Folsom-Kovarik
Electronic Theses and Dissertations
Intelligent tutoring systems (ITSs) are computer programs that model individual learners and adapt instruction to help each learner differently. One way ITSs differ from human tutors is that few ITSs give learners a way to ask questions. When learners can ask for help, their questions have the potential to improve learning directly and also act as a new source of model data to help the ITS personalize instruction. Inquiry modeling gives ITSs the ability to answer learner questions and refine their learner models with an inexpensive new input channel. In order to support inquiry modeling, an advanced planning formalism is …
A Fitness Function Elimination Theory For Blackbox Optimization And Problem Class Learning, Gautham Anil
A Fitness Function Elimination Theory For Blackbox Optimization And Problem Class Learning, Gautham Anil
Electronic Theses and Dissertations
The modern view of optimization is that optimization algorithms are not designed in a vacuum, but can make use of information regarding the broad class of objective functions from which a problem instance is drawn. Using this knowledge, we want to design optimization algorithms that execute quickly (efficiency), solve the objective function with minimal samples (performance), and are applicable over a wide range of problems (abstraction). However, we present a new theory for blackbox optimization from which, we conclude that of these three desired characteristics, only two can be maximized by any algorithm. We put forward an alternate view of …
4d-Ct Lung Registration And Its Application For Lung Radiation Therapy, Yugang Min
4d-Ct Lung Registration And Its Application For Lung Radiation Therapy, Yugang Min
Electronic Theses and Dissertations
Radiation therapy has been successful in treating lung cancer patients, but its efficacy is limited by the inability to account for the respiratory motion during treatment planning and radiation dose delivery. Physics-based lung deformation models facilitate the motion computation of both tumor and local lung tissue during radiation therapy. In this dissertation, a novel method is discussed to accurately register 3D lungs across the respiratory phases from 4D-CT datasets, which facilitates the estimation of the volumetric lung deformation models. This method uses multi-level and multi-resolution optical flow registration coupled with thin plate splines (TPS), to address registration issue of inconsistent …
Multihierarchical Documents And Fine-Grained Access Control, Neil Moore
Multihierarchical Documents And Fine-Grained Access Control, Neil Moore
Theses and Dissertations--Computer Science
This work presents new models and algorithms for creating, modifying, and controlling access to complex text. The digitization of texts opens new opportunities for preservation, access, and analysis, but at the same time raises questions regarding how to represent and collaboratively edit such texts. Two issues of particular interest are modelling the relationships of markup (annotations) in complex texts, and controlling the creation and modification of those texts. This work addresses and connects these issues, with emphasis on data modelling, algorithms, and computational complexity; and contributes new results in these areas of research.
Although hierarchical models of text and markup …
Memristor-Based Reservoir Computing, Manjari S. Kulkarni
Memristor-Based Reservoir Computing, Manjari S. Kulkarni
Dissertations and Theses
In today's nanoscale era, scaling down to even smaller feature sizes poses a significant challenge in the device fabrication, the circuit, and the system design and integration. On the other hand, nanoscale technology has also led to novel materials and devices with unique properties. The memristor is one such emergent nanoscale device that exhibits non-linear current-voltage characteristics and has an inherent memory property, i.e., its current state depends on the past. Both the non-linear and the memory property of memristors have the potential to enable solving spatial and temporal pattern recognition tasks in radically different ways from traditional binary transistor-based …
Evolved Design Of A Nonlinear Proportional Integral Derivative (Npid) Controller, Shubham Chopra
Evolved Design Of A Nonlinear Proportional Integral Derivative (Npid) Controller, Shubham Chopra
Dissertations and Theses
This research presents a solution to the problem of tuning a PID controller for a nonlinear system. Many systems in industrial applications use a PID controller to control a plant or the process. Conventional PID controllers work in linear systems but are less effective when the plant or the process is nonlinear because PID controllers cannot adapt the gain parameters as needed. In this research we design a Nonlinear PID (NPID) controller using a fuzzy logic system based on the Mamdani type Fuzzy Inference System to control three different DC motor systems. This fuzzy system is responsible for adapting the …
Scale Invariant Object Recognition Using Cortical Computational Models And A Robotic Platform, Danny Voils
Scale Invariant Object Recognition Using Cortical Computational Models And A Robotic Platform, Danny Voils
Dissertations and Theses
This paper proposes an end-to-end, scale invariant, visual object recognition system, composed of computational components that mimic the cortex in the brain. The system uses a two stage process. The first stage is a filter that extracts scale invariant features from the visual field. The second stage uses inference based spacio-temporal analysis of these features to identify objects in the visual field. The proposed model combines Numenta's Hierarchical Temporal Memory (HTM), with HMAX developed by MIT's Brain and Cognitive Science Department. While these two biologically inspired paradigms are based on what is known about the visual cortex, HTM and HMAX …
Visualising Urban Flooding Scenarios Using Video Game Technology, William Elliott Lynn
Visualising Urban Flooding Scenarios Using Video Game Technology, William Elliott Lynn
Theses
This thesis investigates the application of computer graphics to the visualisation of urban flooding scenarios. The demand for urban flooding visualisations is presented in the context of an EU wide climate change response strategy. An analysis of the requirements from various stakeholders is presented and a strategy that addresses these requirements is synthesised. A study on the appropriate computer graphics methods and technologies is outlined and limitations of current technologies are assessed. Systems that solve these limitations are described and the result of usability and user acceptance testing are offered as evidence.
A Framework For Personalized Dynamic Cross-Selling In E-Commerce Retailing, Arun K. Timalsina
A Framework For Personalized Dynamic Cross-Selling In E-Commerce Retailing, Arun K. Timalsina
Wayne State University Dissertations
Cross-selling and product bundling are prevalent strategies in the retail sector. Instead of static bundling offers, i.e. giving the same offer to everyone, personalized dynamic cross-selling generates targeted bundle offers and can help maximize revenues and profits. In resolving the two basic problems of dynamic cross-selling, which involves selecting the right complementary products and optimizing the discount, the issue of computational complexity becomes central as the customer base and length of the product list grows. Traditional recommender systems are built upon simple collaborative filtering techniques, which exploit the informational cues gained from users in the form of product ratings and …
Detecting, Tracking, And Recognizing Activities In Aerial Video, Vladimir Reilly
Detecting, Tracking, And Recognizing Activities In Aerial Video, Vladimir Reilly
Electronic Theses and Dissertations
In this dissertation, we address the problem of detecting humans and vehicles, tracking them in crowded scenes, and finally determining their activities in aerial video. Even though this is a well explored problem in the field of computer vision, many challenges still remain when one is presented with realistic data. These challenges include large camera motion, strong scene parallax, fast object motion, large object density, strong shadows, and insufficiently large action datasets. Therefore, we propose a number of novel methods based on exploiting scene constraints from the imagery itself to aid in the detection and tracking of objects. We show, …
Behavioral Signature-Based Framework For Identifying Unsatisfiable Variable Mappings Between Digital Designs, Vaibhav Uday Tendulkar
Behavioral Signature-Based Framework For Identifying Unsatisfiable Variable Mappings Between Digital Designs, Vaibhav Uday Tendulkar
Browse all Theses and Dissertations
Throughout its design process (from specification to implementation) a digital circuit goes through a variety of structural changes. These changes are introduced primarily due to the use of automated tools in the design process. Checking whether the Boolean functions representing the two designs are equivalent is thus necessary to verify if a design implementation adheres to its specification. Combinational Equivalence Checking (CEC) - a process of determining whether two combinational design functions are equiv-alent, has been one of the most researched Boolean matching problems. The well-known CEC techniques that have been proposed adopt some kind of a formal approach such …
Robust Execution Strategy For Scheduling Under Uncertainity, Na Fu
Robust Execution Strategy For Scheduling Under Uncertainity, Na Fu
Dissertations and Theses Collection (Open Access)
Resource Constrained Project Scheduling Problems with minimum and maximum time lags (RCPSP/max) provides a general model for resource scheduling in many real-world problems (such as manufacturing and construction engineering). Due to its practical importance and generality, providing effective algorithms and scalable solutions for RCPSP/max is a topic of growing research. Traditional methods have addressed deterministic models with all parameters known with certainty. In this thesis, we are concerned with RCPSP/max problems in an uncertain environment where durations of activities are stochastic and resource availabilities are subject to unforeseen breakdowns. We propose methods for generating robust execution strategy to protect against …
Querying And Managing Opm-Compliant Scientific Workflow Provenance, Chunhyeok Lim
Querying And Managing Opm-Compliant Scientific Workflow Provenance, Chunhyeok Lim
Wayne State University Dissertations
Provenance, the metadata that records the derivation history of scientific results, is important in scientific workflows to interpret, validate, and analyze the result of scientific computing. Recently,
to promote and facilitate interoperability among heterogeneous provenance systems, the Open Provenance Model (OPM) has been proposed and has played an important role in the community.
In this dissertation, to efficiently query and manage OPM-compliant provenance, we first propose a provenance collection framework that collects both prospective provenance, which captures
an abstract workflow specification as a recipe for future data derivation and retrospective provenance, which captures past workflow execution and data derivation information. …
Knowledge Acquisition In A System, Christopher J. Thomas
Knowledge Acquisition In A System, Christopher J. Thomas
Browse all Theses and Dissertations
I present a method for growing the amount of knowledge available on the Web using a hermeneutic method that involves background knowledge, Information Extraction techniques and validation through discourse and use of the extracted information.
I present the metaphor of the "Circle of Knowledge on the Web". In this context, knowledge acquisition on the web is seen as analogous to the way scientific disciplines gradually increase the knowledge available in their field.
Here, formal models of interest domains are created automatically or manually and then validated by implicit and explicit validation methods before the statements in the created models can …
Optimization Of Spectrum Allocation In Cognitive Radio And Dynamic Spectrum Access Networks, Tao Zhang
Optimization Of Spectrum Allocation In Cognitive Radio And Dynamic Spectrum Access Networks, Tao Zhang
Browse all Theses and Dissertations
Spectrum has become a treasured commodity. However, many licensed frequency bands exclusively assigned to the primary license holders (also called primary users) remain relatively unused or under-utilized for most of the time. Allowing other users (also called secondary users) without a license to operate in these bands with no interference becomes a promising way to satisfy the fast growing needs for frequency spectrum resources. A cognitive radio adapts to the environment it operates in by sensing the spectrum and quickly decides on appropriate frequency bands and transmission parameters to use in order to achieve certain performance goals. One of the …
Abstraction Driven Application And Data Portability In Cloud Computing, Ajith Harshana Ranabahu
Abstraction Driven Application And Data Portability In Cloud Computing, Ajith Harshana Ranabahu
Browse all Theses and Dissertations
Cloud computing has changed the way organizations create, manage, and evolve their applications. While many organizations are eager to use the cloud, tempted by substantial cost savings and convenience, the implications of using clouds are still not well understood. One of the major concerns in cloud adoption is the vendor lock-in of applications, caused by the heterogeneity of the numerous cloud service offerings. Vendor locked applications are difficult, if not impossible to port from one cloud system to another, forcing cloud service consumers to use undesired or suboptimal solutions. This dissertation investigates a complete and comprehensive solution to address the …
Winding Resistance And Winding Power Loss Of High-Frequency Power Inductors, Rafal P. Wojda
Winding Resistance And Winding Power Loss Of High-Frequency Power Inductors, Rafal P. Wojda
Browse all Theses and Dissertations
The scope of this research is concentrated on analytical winding size optimization (thickness or diameter) of high-frequency power inductors wound with foil, solid-round wire, multi-strand wire, and litz-wire conductors.
The first part of this research concerns analytical optimization of the winding size (thickness or diameter) for the inductors conducting a sinusoidal current. Estimation of winding resistance in individual inductor layers made of foil, taking into account the skin and proximity effects is performed. Approximated equations for the winding power loss in each layer are given and the optimal values of foil thickness for each layer are derived.
A low- and …
Linked Open Data Alignment & Querying, Prateek Jain
Linked Open Data Alignment & Querying, Prateek Jain
Browse all Theses and Dissertations
The recent emergence of the "Linked Data" approach for publishing data represents a major step forward in realizing the original vision of a web that can "understand and satisfy the requests of people and machines to use the web content" i.e. the Semantic Web. This new approach has resulted in the Linked Open Data (LOD) Cloud, which includes more than 295 large datasets contributed by experts belonging to diverse communities such as geography, entertainment, and life sciences. However, the current interlinks between datasets in the LOD Cloud, as we will illustrate,are too shallow to realize much of the benefits promised. …
Basal Graph Structures For Geometry Based Organization Of Wide-Baseline Image Collections, Aveek Shankar Brahmachari
Basal Graph Structures For Geometry Based Organization Of Wide-Baseline Image Collections, Aveek Shankar Brahmachari
USF Tampa Graduate Theses and Dissertations
We propose algorithms for organization of images in wide-area sparse-view datasets. In such datasets, if the images overlap in scene content, they are related by wide-baseline geometric transformations. The challenge is to identify these relations even if the images sparingly overlap in their content. The images in a dataset are then grouped into sets of related images with the relations captured in each set as a basal (minimal and foundational) graph structures. Images form the vertices in the graph structure and the edges define the geometric relations between the images. We use these basal graphs for geometric walkthroughs and detection …
The Application Of Fuzzy Granular Computing For The Analysis Of Human Dynamic Behavior In 3d Space, Murad Mohammad Alaqtash
The Application Of Fuzzy Granular Computing For The Analysis Of Human Dynamic Behavior In 3d Space, Murad Mohammad Alaqtash
Open Access Theses & Dissertations
Human dynamic behavior in space is very complex in that it involves many physical, perceptual and motor aspects. It is tied together at a sensory level by linkages between vestibular, visual and somatosensory information that develop through experience of inertial and gravitational reaction forces. Coordinated movement emerges from the interplay among descending output from the central nervous system, sensory input from the body and environment, muscle dynamics, and the emergent dynamics of the whole neuromusculoskeletal system.
There have been many attempts to directly capture the activities of the neuronal system in human locomotion without the ability to clarify how the …
Decision Rule Induction For Service Sector Using Data Mining- A Rough Set Theory Approach, Zhonghua Hu
Decision Rule Induction For Service Sector Using Data Mining- A Rough Set Theory Approach, Zhonghua Hu
Open Access Theses & Dissertations
Nowadays, data mining is more widely used than ever before; not only by the academic area, but also in the industry and business area. Apart from execution of business processes, the creation of knowledge base and its utilization for the benefit of the organization is becoming a strategy tool to compete. Despite of having ever growing data bases, the problem is that the finance company fails to fully capitalize the true benefits which can be gained from this great wealth of information. The data mining technology instead of classic statistical analysis is developed to help the people to discover the …