Index Catalog // ScholarsArchive@OSU

UCT for tactical assault battles in real-time strategy games

Creator:: Balla, Radha-Krishna
Abstract:: We consider the problem of tactical assault planning in real-time strategy games where a team of friendly agents must launch an assault on an enemy. This problem offers many challenges including a highly dynamic and uncertain environment, multiple agents, durative actions, numeric attributes, and different optimization objectives. While the dynamics...
Resource Type:: Masters Thesis

Revisiting output coding for sequential supervised learning

Creator:: Hao, Guohua
Abstract:: Markov models are commonly used for joint inference of label sequences. Unfortunately, inference scales quadratically in the number of labels, which is problematic for training methods where inference is repeatedly preformed and is the primary computational bottleneck for large label sets. Recent work has used output coding to address this...
Resource Type:: Masters Thesis

Type-correct changes — a safe approach to version control implementation

Creator:: Dagit, Jason
Abstract:: Ensuring correctness of real-world software applications is a challenging task. Testing can be used to ﬁnd many bugs, but is typically not sufficient for proving correctness or even eliminating entire classes of bugs. However, formal proof and verification techniques tend to be very heavy weight and are simply not available...
Resource Type:: Masters Thesis

Ultra-low energy digital logic controller design for wireless sensor networks

Creator:: Meliza, Stephen W.
Abstract:: Low energy design techniques for digital circuits are examined to determine their suitability for use in a digital logic controller for wireless sensor network nodes. Transistor level simulations are used to evaluate the techniques and those demonstrating an energy reduction are used to implement a digital logic controller. The digital...
Resource Type:: Masters Thesis

Joining open source software communities: an analysis of newbies’ first interactions on project mailing lists

Creator:: King, Scott T.
Abstract:: Open source software has become a powerful force in the world of computing. While once confined to the domain of technical specialists, people of all types have begun to adopt this software – from the casual web-surfer who uses Firefox, to the professional web developer who codes in PHP or...
Resource Type:: Masters Thesis

Painterly rendering using space-time varying style parameters

Creator:: Kagaya, Mizuki
Abstract:: Automatic painterly rendering systems have been proposed but they opted for selecting a single style to generate paintings from images, which lacks the ability of creatively using multiple styles to focus important objects and deemphasize unimportant part of the scenes. We provide a multi-style painting framework to address this issue...
Resource Type:: Masters Thesis

Evaluating online text classification algorithms for email prediction in TaskTracer

Creator:: Keiser, Victoria L.
Abstract:: This paper examines how six online multiclass text classification algorithms perform in the domain of email tagging within the TaskTracer system. TaskTracer is a project-oriented user interface for the desktop knowledge worker. TaskTracer attempts to tag all documents, web pages, and email messages with the projects to which they are...
Resource Type:: Masters Thesis

A novel linear generator for wave energy applications

Creator:: Ernst, Steven George
Abstract:: With the increasing effort to identify alternative methods of energy generation, extraction of ocean energy has gathered a large interest. Research and industry have begun considering wave energy as the next new alternative energy. The unique challenges of ocean energy requires a wave energy converter to be both robust and...
Resource Type:: Masters Thesis

Ultra low capacitance RFIC probe

Creator:: Jacob, Michael E.
Abstract:: In Radio Frequency Integrated Circuits (RFIC) or high frequency digital ICs, there is a demand to probe the internal nodes for testing. The ultra low capacitance RFIC probe presented in his work is a flexible tool for these applications. The probe utilizes the coupling between a tungsten needle and the...
Resource Type:: Masters Thesis

Magnetic bead detection with ferromagnetic resonance for use in immuno-biosensor application

Creator:: Ghionea, Simon
Abstract:: The objective of this thesis is to introduce and demonstrate a novel magnetic bead detector based on inductive detection at the ferromagnetic resonance (FMR) frequency for use in bio-sensing applications. Detection ability is demonstrated through theoretical arguments, numerical computer simulations, and experimental characterization of micro-fabricated detectors. The detector is composed...
Resource Type:: Masters Thesis

Urban military operation mobility model

Creator:: Kang, Ho Sung
Abstract:: A Mobile Ad-hoc NETwork (MANET) is collection of wireless mobile nodes without a network infrastructure or centralized administration. Although MANETs can be used in many applications, such as mobile Internet, military communication, and disaster relief networks, a number of challenges remain. These include routing, medium access control, security, scalability, energy...
Resource Type:: Masters Thesis

Electrically tunable thin-film inductors based on synthetic antiferromagnet cores

Creator:: An, Na
Abstract:: The objective of this research is to demonstrate the feasibility of implementing electrically tunable on-chip inductors based on synthetic antiferromagnet (SAF) cores. This thin film magnetic core is made of a magnetic bi-layer antiferromagnetically coupled through a nonmagnetic spacer layer. An energy model is developed to investigate the magnetic behavior...
Resource Type:: Masters Thesis

Development of biomimetic control strategies for the optimal use of renewable sources and energy storage systems

Creator:: Hapke, Hannes Max
Abstract:: In the year 2007, the worldwide energy consumption accumulated to a total of 16.5 billion MWh. While the resources of conventional energy production cause environmental damage, renewable energy sources like solar or wind power offer a solution to substitute for coal or nuclear generated power. Countries like Denmark and Spain...
Resource Type:: Masters Thesis

Using provenance to aid document re-finding

Creator:: Lonsdale, Heather
Abstract:: In the field of Human-Computer Interaction, provenance refers to the complete history and genealogy of a document. Provenance can be useful in identifying related resources, such as different versions of the same document or resources used in the creation of a new document. Though methods of provenance collection and applications...
Resource Type:: Masters Thesis

Executable semantics for PLEXIL : simulating a task-scheduling language in Haskell

Creator:: Strauss, Paul J.
Abstract:: An interdisciplinary study into the theory of design decisions has yielded a model for tracking design changes in hardware/software systems, but it still needs to be applied to a larger system to test its efficiency at tracking important data. This thesis creates an implementation of PLEXIL, a language in development...
Resource Type:: Masters Thesis

Analysis and optimal sizing of an energy storage system for wind farm applications

Creator:: Yen, Zuan Z.
Abstract:: Modern wind energy is the technology of choice with a short payback period for increasing renewable energy portfolios. Bonneville Power Administration (BPA), a United States power authority in the Pacific Northwest expects to increase their wind energy capacity from 2,000 megawatts to 6,000 megawatts within the next five years. Currently...
Resource Type:: Masters Thesis

Learning multiple non-redundant codebooks with word clustering for document classification

Creator:: Surve, Akshat Sudhakar
Abstract:: The problem of document classification has been widely studied in machine learning and data mining. In document classification, most of the popular algorithms are based on the bag-of-words representation. Due to the high dimensionality of the bag-of-words representation, significant research has been conducted to reduce the dimensionality via different approaches....
Resource Type:: Masters Thesis

Indexing Web 2.0 Applications

Creator:: Mohan, Sumana
Abstract:: This project aims at implementing Indexing for Web 2.0 Applications. Ajax applications consist of a set of states which are generated by the user through actions such as click, focus, blur etc. events. By saving these DOM states we can index information obtained from dynamically generated web content. To prevent...
Resource Type:: Capstone Project

Application of WiMAX to aviation communications

Creator:: Kim, Sang Jun
Abstract:: The US military is evaluating the capabilities of emerging technologies based on IEEE 802.16 standard as a potential commercial off-the-shelf solution to support the communication requirements of the future war. In the last few years, development in military and telecommunication industries have focused on an intensive use of broadband systems,...
Resource Type:: Masters Thesis

A force control algorithm for a wave energy linear test bed

Creator:: Henshaw, Nathan R.
Abstract:: Researchers at Oregon State University, focusing on the development of ocean wave energy converters, have designed and installed a unique linear test bed to aid in the characterization of these converters. Under the original control scheme, the linear test bed follows a position profile and is limited in its ability...
Resource Type:: Masters Thesis

A high power emulation of a wind farm

Creator:: Lalla, Chelsea
Abstract:: As more wind farms are connected to the grid, the variable nature of wind energy begins to influence grid stability. Energy storage could help smooth the variable nature of wind energy. Laboratory demonstration and exploration of the interaction between different energy storage devices and wind energy could help improve and...
Resource Type:: Masters Thesis

Fabrication and characterization of p-type CuO / n-type ZnO heterostructure gas sensors prepared by sol-gel processing techniques

Creator:: Ravichandran, Ram
Abstract:: Increased interest in the field of sensor technology stems from the availability of an inexpensive and robust sensor to detect and quantify the presence of a specific gas. Bulk p-CuO/n-ZnO heterocontact based gas sensors have been shown to exhibit the necessary sensitivity and selectivity characteristics, however, low interfacial CuO/ZnO contact...
Resource Type:: Masters Thesis

Design techniques for high efficiency LED drivers

Creator:: Bang, Sarvesh Jagdish
Abstract:: The increasing popularity of cellular phones with integrated cameras in the recent past has led to major improvements in its image quality. However, integration of new features, such as mobile email, video streaming, MP3 etc. tend to put the limitation on image quality as camera phone designers struggle to manage...
Resource Type:: Masters Thesis

A self-calibrated, reconfigurable RF LNA

Creator:: Jayaraman, Karthik
Abstract:: Modern wireless System-on-Chips (SoCs), such as mobile handsets, sensor networks, and mm-wave systems, integrate an entire RF system on a single CMOS chip. Such highly complex systems require significant on-chip digital signal processing to help improve the performance of highly sensitive analog/RF components. The IC market being competitive, the ability...
Resource Type:: Masters Thesis

A recurrent neural network implementation using the graphics processing unit

Creator:: Moore, Christopher
Abstract:: We took the back-propagation algorithms of Werbos for recurrent and feed-forward neural networks and implemented them on machines with graphics processing units (GPU). The parallelism of these units gave our implementations a 10 to 100 fold increase in speed. For nets with less than 20 neurons the machine performed faster...
Resource Type:: Masters Thesis

Metal fill considerations for on-chip interconnects and spiral inductors

Creator:: Shilimkar, Vikas S.
Abstract:: Variability in circuit performance due to process defects is a major concern in integrated circuit (IC) fabrication. Advanced IC manufacturing processes employ Chemical-Mechanical Polishing (CMP) for planarization of oxide and metal layers. CMP defects result in variations in the oxide and metal topographical profile. To reduce these topographical variations, electrically...
Resource Type:: Masters Thesis

Studies to inform a visual language for authoring interactive exercise prescriptions

Creator:: Dodge, Jonathan E.
Abstract:: Communicating dynamic motion content, such as exercise, with a static medium, such as paper, is diﬃcult. The technology exists for presenting 3D animated exercise content to patients; however, the tools for allowing exercise domain experts to eﬀectively author the content do not exist. We conducted two formative studies with exercise...
Resource Type:: Masters Thesis

Toward end-user debugging of machine-learned programs

Creator:: Kulesza, Todd
Abstract:: The results of a machine learning from user behavior can be thought of as a program, and like all programs, it may need to be debugged. Providing ways for the user to debug it matters because without the ability to fix errors, users may find that the learned program’s errors...
Resource Type:: Masters Thesis

A novel method for zinc oxide nanowire sensor fabrication

Creator:: Pelatt, Brian D.
Abstract:: Interest in nanomaterials is motivated partly by their potential for sensor arrays to detect different gases. Nanowires in particular are of interest because their high surface-to-volume ratio promises the possibility of high sensitivity. However, because of their discrete quasi-one-dimensional geometry, electrical integration of nanowires into photolithographically defined devices and circuits...
Resource Type:: Masters Thesis

On error bounds for linear feature extraction

Creator:: Thangavelu, Madan Kumar
Abstract:: Linear transformation for dimension reduction is a well established problem in the field of machine learning. Due to the numerous observability of parameters and data, processing of the data in its raw form is computationally complex and difficult to visualize. Dimension reduction by means of feature extraction offers a strong...
Resource Type:: Masters Thesis

Interactive Methods for Authoring Behaviors of Multiple Agents

Creator:: Iyer, Vikram
Abstract:: Virtual environments and simulations are being used increasingly to both visualize and understand data as well as to create scenarios for training and analysis purposes. In this paper, we are interested in the use of simulation and visualization of interactive virtual agents to create realistic motions for training scenarios. We...
Resource Type:: Capstone Project

Solar Photovoltaics: Comparisons of Different Approaches and Technologies

Creator:: Louie, Michael Y. K.
Abstract:: Solar photovoltaic is considered one among many new alternatives to satisfy our demand for energy. Solar Cells have undergone changes in the last 50 years or so since its invention in 1954. Solar power is beginning to challenge conventional energy sources in terms of mainstream acceptance. Solar power along with...
Resource Type:: Capstone Project

Efficient RF energy scavenging and ultra-low power management for powering wireless sensor nodes

Creator:: Arumugam, Vikrant P.
Abstract:: As the demand for real-time information in engineering and health care systems keeps increasing, the need for wireless sensor nodes is also continuously increasing. As a result, the cost and effort involved in installing and maintaining batteries to power the numerous sensor nodes is growing exponentially. Providing a cost effective...
Resource Type:: Masters Thesis

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