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Cloud Computing:Strategies For Cloud Computing Adoption, Faith Shimba 2010 Dublin Institute of Technology

Cloud Computing:Strategies For Cloud Computing Adoption, Faith Shimba

Dissertations

The advent of cloud computing in recent years has sparked an interest from different organisations, institutions and users to take advantage of web applications. This is a result of the new economic model for the Information Technology (IT) department that cloud computing promises. The model promises a shift from an organisation required to invest heavily for limited IT resources that are internally managed, to a model where the organisation can buy or rent resources that are managed by a cloud provider, and pay per use. Cloud computing also promises scalability of resources and on-demand availability of resources.

Although, the adoption ...


Context-Aware Query Recommendations, Alexandros NTOULAS, Heasoo HWANG, Lise GETOOR, Stelios PAPARIZOS, Hady Wirawan LAUW 2010 Singapore Management University

Context-Aware Query Recommendations, Alexandros Ntoulas, Heasoo Hwang, Lise Getoor, Stelios Paparizos, Hady Wirawan Lauw

Research Collection School Of Information Systems

Described is a search-related technology in which context information regarding a user's prior search actions is used in making query recommendations for a current user action, such as a query or click. To determine whether each set or subset of context information is relevant to the user action, data obtained from a query log is evaluated. More particularly, a query transition (query-query) graph and a query click (query-URL) graph are extracted from the query log; vectors are computed for the current action and each context/sub-context and evaluated against vectors in the graphs to determine current action-to-context similarity. Also ...


Climate Change, Its Effect On Migration Patterns Of The Cackling Goose And White-Fronted Goose In The Willamette Valley, And Implications For Goose Management, Kelly Warren 2010 Portland State University

Climate Change, Its Effect On Migration Patterns Of The Cackling Goose And White-Fronted Goose In The Willamette Valley, And Implications For Goose Management, Kelly Warren

Master of Environmental Management Project Reports

This thesis considers the question of whether climate change is affecting the migration patterns of geese in the Pacific Flyway, specifically cackling geese (Branta hutchinsii minima) and Pacific white-fronted geese (Anser albifrons frontalis). Ancillary questions that are considered are as follows:

• If global warming is affecting these species, what is the nature of the effects? • How are the changes affecting the human environment and what can be done about these effects?

In 1994, the majority of the cackler population in the Pacific Flyway began to winter in Oregon’s Willamette Valley rather than in their historical wintering areas in California ...


Symmetric Criticality In Classical Field Theory, Charles G. Torre, Ian M. Anderson 2010 Department of Physics, Utah State University

Symmetric Criticality In Classical Field Theory, Charles G. Torre, Ian M. Anderson

All Physics Faculty Publications

This is a brief overview of work done by Ian Anderson, Mark Fels, and myself on symmetry reduction of Lagrangians and Euler-Lagrange equations, a subject closely related to Palais’ Principle of Symmetric Criticality. After providing a little history, I describe necessary and sufficient conditions on a group action such that reduction of a group-invariant Lagrangian by the symmetry group yields the correct symmetry-reduced Euler-Lagrange equations.


Sensitivity Of Geoelectrical Measurements To The Presence Of Bacteria In Porous Media, Gamal Z. Abdel Aal, Estella A. Atekwana, Silvia Rossbach, D. Dale Werkema 2010 Missouri University of Science and Technology

Sensitivity Of Geoelectrical Measurements To The Presence Of Bacteria In Porous Media, Gamal Z. Abdel Aal, Estella A. Atekwana, Silvia Rossbach, D. Dale Werkema

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

We investigated the sensitivity of low-frequency electrical measurements (0.1-1000 Hz) to (1) microbial cell density, (2) live and dead cells, and (3) microbial attachment onto mineral surfaces of clean quartz sands and iron oxide-coated sands. Three strains of Pseudomonas aeruginosa PAO1 (wild type and rhlA and pilA mutant) with different motility and attachment properties were used. Varying concentrations of both live and dead cells of P. aeruginosa wild type in sand columns showed no effect on the real conductivity component (σ′). However, the imaginary conductivity component (σ″) increased linearly with increasing concentrations of live cells in sand columns, whereas ...


On Challenges In Evaluating Malware Clustering, Peng LI, Limin LIU, Debin GAO, Michael K Reiter 2010 University of North Carolina, Chapel Hill

On Challenges In Evaluating Malware Clustering, Peng Li, Limin Liu, Debin Gao, Michael K Reiter

Research Collection School Of Information Systems

Malware clustering and classification are important tools that enable analysts to prioritize their malware analysis efforts. The recent emergence of fully automated methods for malware clustering and classification that report high accuracy suggests that this problem may largely be solved. In this paper, we report the results of our attempt to confirm our conjecture that the method of selecting ground-truth data in prior evaluations biases their results toward high accuracy. To examine this conjecture, we apply clustering algorithms from a different domain (plagiarism detection), first to the dataset used in a prior work's evaluation and then to a wholly ...


Comprehensive Evaluation Of Association Measures For Fault Localization, Lucia LUCIA, David LO, Lingxiao JIANG, Aditya Budi 2010 Singapore Management University

Comprehensive Evaluation Of Association Measures For Fault Localization, Lucia Lucia, David Lo, Lingxiao Jiang, Aditya Budi

Research Collection School Of Information Systems

In statistics and data mining communities, there have been many measures proposed to gauge the strength of association between two variables of interest, such as odds ratio, confidence, Yule-Y, Yule-Q, Kappa, and gini index. These association measures have been used in various domains, for example, to evaluate whether a particular medical practice is associated positively to a cure of a disease or whether a particular marketing strategy is associated positively to an increase in revenue, etc. This paper models the problem of locating faults as association between the execution or non-execution of particular program elements with failures. There have been ...


P2pdoctagger: Content Management Through Automated P2p Collaborative Tagging, Hock Hee ANG, Vivekanand GOPALKRISHNAN, Wee Keong NG, Steven C. H. HOI 2010 Nanyang Technological University

P2pdoctagger: Content Management Through Automated P2p Collaborative Tagging, Hock Hee Ang, Vivekanand Gopalkrishnan, Wee Keong Ng, Steven C. H. Hoi

Research Collection School Of Information Systems

As the amount of user generated content grows, personal information management has become a challenging problem. Several information management approaches, such as desktop search, document organization and (collaborative) document tagging have been proposed to address this, however they are either inappropriate or inefficient. Automated collaborative document tagging approaches mitigate the problems of manual tagging, but they are usually based on centralized settings which are plagued by problems such as scalability, privacy, etc. To resolve these issues, we present P2PDocTagger, an automated and distributed document tagging system based on classification in P2P networks. P2P-DocTagger minimizes the efforts of individual peers and ...


Shoreline Evolution: James City County, Virginia James, York, And Chickahominy River Shorelines, Donna Milligan, Christine Wilcox, Kevin O'Brien, C. Scott Hardaway 2010 Virginia Institute of Marine Science

Shoreline Evolution: James City County, Virginia James, York, And Chickahominy River Shorelines, Donna Milligan, Christine Wilcox, Kevin O'Brien, C. Scott Hardaway

Reports

Shoreline evolution is the change in the shore zone through time. Along the shores of Chesapeake Bay, it is a process and response system. The processes at work include winds, waves, tides and currents which shape and modify coastlines by eroding, transporting and depositing sediments. The shore line is commonly plotted and measured to provide a rate of change, but it is as important to understand the geomorphic patterns of change. Shore analysis provides the basis to know how a particular coast has changed through time and how it might proceed in the future. The purpose of this data report ...


Genetic Analysis Of The Federally Endangered Winged Mapleleaf Mussel To Aid Proposed Re-Introduction Efforts, Kevin J. Roe 2010 Iowa State University

Genetic Analysis Of The Federally Endangered Winged Mapleleaf Mussel To Aid Proposed Re-Introduction Efforts, Kevin J. Roe

Natural Resource Ecology and Management Publications

The winged mapleleaf, Quadrula fragosa, historically occurred in the Mississippi, Tennessee, Ohio, and Cumberland river drainages, but has suffered severe population and range reductions. At the time that the species was federally listed as endangered, its range was thought to have been reduced to a stretch of the St. Croix River between northwestern Wisconsin and east-central Minnesota. Recently, morphologically “Q. fragosa-like” specimens were discovered at sites in Arkansas (Ouachita River and Saline River), Missouri (Bourbeuse River), and Oklahoma (Little River). Subsequently, a plan was proposed to re-introduce Q. fragosa into portions of its historic range where its been extirpated from ...


Characterization Of Soil Water Content Variability And Soil Texture Using Gpr Groundwave Techniques, Katherine R. Grote, Cale T. Anger, Bridget Kelly, Susan Sharpless Hubbard, Yoram N. Rubin 2010 Missouri University of Science and Technology

Characterization Of Soil Water Content Variability And Soil Texture Using Gpr Groundwave Techniques, Katherine R. Grote, Cale T. Anger, Bridget Kelly, Susan Sharpless Hubbard, Yoram N. Rubin

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Accurate characterization of near-surface soil water content is vital for guiding agricultural management decisions and for reducing the potential negative environmental impacts of agriculture. Characterizing the near-surface soil water content can be difficult, as this parameter is often both spatially and temporally variable, and obtaining sufficient measurements to describe the heterogeneity can be prohibitively expensive. Understanding the spatial correlation of near-surface soil water content can help optimize data acquisition and improve understanding of the processes controlling soil water content at the field scale. In this study, ground penetrating radar (GPR) methods were used to characterize the spatial correlation of water ...


A Detailed Model Atmosphere Analysis Of Cool White Dwarfs In The Sloan Digital Sky Survey, Mukremin Kilic, Ted von Hippel, et al. 2010 Smithsonian Astrophysical Observatory

A Detailed Model Atmosphere Analysis Of Cool White Dwarfs In The Sloan Digital Sky Survey, Mukremin Kilic, Ted Von Hippel, Et Al.

Publications

We present optical spectroscopy and near-infrared photometry of 126 cool white dwarfs (WDs) in the Sloan Digital Sky Survey (SDSS). Our sample includes high proper motion targets selected using the SDSS and USNO-B astrometry and a dozen previously known ultracool WD candidates. Our optical spectroscopic observations demonstrate that a clean selection of large samples of cool WDs in the SDSS (and the SkyMapper, Pan-STARRS, and the Large Synoptic Survey Telescope data sets) is possible using a reduced proper motion diagram and a tangential velocity cut-off (depending on the proper motion accuracy) of 30 km s–1. Our near-infrared observations reveal ...


Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2010), Troy D. Tuckey, Mary C. Fabrizio 2010 Virginia Institute of Marine Science

Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2010), Troy D. Tuckey, Mary C. Fabrizio

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 ...


Engaging Students In Information Storage Management Courses, Vladan Jovanovic, Timur Mirzoev, Lee Toderick, Rick Homkes, Mark Stockman 2010 Georgia Southern University

Engaging Students In Information Storage Management Courses, Vladan Jovanovic, Timur Mirzoev, Lee Toderick, Rick Homkes, Mark Stockman

Computer Science, Department of - Faculty Publications

This panel will elaborate on faculty experiences with specific ways used to engage students in the Information Storage and Management, formerly Storage Technology, and the Virtualization coursework. The emphasize of the discussion will be on the mechanisms used in engaging students in learning and on experiences with various activities helpful for varying learning preferences/modes. All invited panelists are experienced faculty involved with subject matter courses via EMC’s Academic Alliance program. The resources made available via this alliance and through exchange among the faculty involved in teaching related subjects in IT and CS programs will be discussed and evaluated ...


Probing The Evolving Massive Star Population In Orion With Kinematic And Radioactive Tracers, R. Voss, R. Diehl, J. S. Vink, Dieter H. Hartmann 2010 Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse & Excellence Cluster Universe, Technische Universität München

Probing The Evolving Massive Star Population In Orion With Kinematic And Radioactive Tracers, R. Voss, R. Diehl, J. S. Vink, Dieter H. Hartmann

Publications

Context. Orion is the nearest star-forming region to host a significant number of young and massive stars. The energy injected by these OB stars is thought to have created the Eridanus superbubble. Because of its proximity, Orion is a prime target for a detailed investigation of the interaction between massive stars and their environment. Aims. We study the massive star population of Orion and its feedback in terms of energy and mass, in order to compare the current knowledge of massive stars with kinematic and radioactive tracers in the surrounding interstellar medium (ISM). Methods. We assembled a census of the ...


Processing Induced Voxel Correlation In Sense Fmri Via The Ammust Framework, Daniel Rowe, Iain P. Bruce 2010 Marquette University

Processing Induced Voxel Correlation In Sense Fmri Via The Ammust Framework, Daniel Rowe, Iain P. Bruce

Mathematics, Statistics and Computer Science Faculty Research and Publications

No abstract provided.


Patterns In Rotating Rayleigh–Bénard Convection At High Rotation Rates, Janet Scheel, P. Mutyaba, T. Kimmel 2010 Occidental College

Patterns In Rotating Rayleigh–Bénard Convection At High Rotation Rates, Janet Scheel, P. Mutyaba, T. Kimmel

Janet D. Scheel

We present the results from numerical and theoretical investigations of rotating Rayleigh–Bénard convection for relatively large dimensionless rotation rates, 170 < Ω < 274, and a Prandtl number of 6.4. Unexpected square patterns were found experimentally by Bajaj et al. (Phys. Rev. Lett., vol. 81, 1998, p. 806) in this parameter regime and near threshold for instability in the bulk. These square patterns have not yet been understood theoretically. Sánchez-Álvarez et al. (Phys. Rev. E, vol. 72, 2005, p. 036307) have found square patterns in numerical simulations for similar parameters when only the Coriolis force is included. We performed detailed ...


Probabilistic Model-Based Diagnosis: An Electrical Power System Case Study, Ole Mengshoel, Mark Chavira, Keith Cascio, Adnan Darwiche, Scott Poll, Serdar Uckun 2010 Carnegie Mellon University

Probabilistic Model-Based Diagnosis: An Electrical Power System Case Study, Ole Mengshoel, Mark Chavira, Keith Cascio, Adnan Darwiche, Scott Poll, Serdar Uckun

Ole J Mengshoel

We present in this paper a case study of the probabilistic approach to model-based diagnosis. Here, the diagnosed system is a real-world electrical power system (EPS), i.e., the Advanced Diagnstic and Prognostic Testbed (ADAPT) located at the NASA Ames Research Center. Our probabilistic approach is formally well founded and based on Bayesian networks (BNs) and arithmetic circuits (ACs). We pay special attention to meeting two of the main challenges often associated with real-world application of model-based diagnosis technologies: model development and real-time reasoning. To address the challenge of model development, we develop a systematic approach to representing EPSs as ...


Frequency Dependence In The Initiation Of Laser-Induced Damage, Jeremy Gulley 2010 Kennesaw State University

Frequency Dependence In The Initiation Of Laser-Induced Damage, Jeremy Gulley

Jeremy R. Gulley

Numerous studies have investigated the role of photoionization in ultrafast laser-induced damage of bulk dielectrics. This study examines the role of spectral width and instantaneous laser frequency in laser-induced damage using a frequency dependent multiphoton ionization model and numerical simulation of an 800 nm laser pulse propagating through fused silica. When the individual photon wavelengths are greater than 827 nm, an additional photon is required for photoionization, reducing the probability of the event by many orders of magnitude. Simulation results suggest that this frequency dependence may significantly affect the processes of laser-induced damage and filamentation.


Network Analysis Of Scientific Workflows: A Gateway To Reuse, Wei Tan, Jia Zhang, Ian Foster 2010 Carnegie Mellon University, Silicon Valley

Network Analysis Of Scientific Workflows: A Gateway To Reuse, Wei Tan, Jia Zhang, Ian Foster

Jia Zhang

No abstract provided.


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