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Articles 4531 - 4560 of 5872
Full-Text Articles in Physical Sciences and Mathematics
Cs 415-01: Social Implications Of Computing, Leo Finkelstein
Cs 415-01: Social Implications Of Computing, Leo Finkelstein
Computer Science & Engineering Syllabi
CS 415 is a communication skills course using as its subject matter current salient issues associated with the social implications of computing. In addition to the course text, you will need to use certain reading materials in the library and elsewhere, and you will be responsible for using concepts and theories provided in class lectures and discussions.
Cs 466/666-01: Introduction To Formal Languages, Thomas Sudkamp
Cs 466/666-01: Introduction To Formal Languages, Thomas Sudkamp
Computer Science & Engineering Syllabi
CS 466/666 is an introduction to formal language and automata theory. In this course we will examine methods for defining syntax of languages and recognizing patterns: the syntax of languages can be defined using grammars and patterns accepted by finite state machines. Along with presenting with fundamentals of these two topics, the course will develop and investigate the relationships between language definition and pattern recognition. The text will be the third edition of Languages and Machines: An Introduction to the Theory of Computer Science.
Cs 205-04,05,06: Computer Literacy And Office Automation, Terri Bauer
Cs 205-04,05,06: Computer Literacy And Office Automation, Terri Bauer
Computer Science & Engineering Syllabi
No abstract provided.
Cs 142-01: Computer Programming Ii, Eric Maston
Cs 142-01: Computer Programming Ii, Eric Maston
Computer Science & Engineering Syllabi
This course provides a continuation to the general introduction of computer programming begun in CS 141. Examples from and applications to a broad range of problems are given. The concepts covered will be applied to the Java programming language. (Students must register for both lecture and one laboratory section.)
Ceg 402/602-01: Introduction To Computer Communication, Bin Wang
Ceg 402/602-01: Introduction To Computer Communication, Bin Wang
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 860-01: Object-Oriented Programming, Krishnaprasad Thirunarayan
Ceg 860-01: Object-Oriented Programming, Krishnaprasad Thirunarayan
Computer Science & Engineering Syllabi
This course motivates the need for object-oriented programming, and studies, in detail, object-oriented programming techniques, languages, and technology. The lectures will focus on the foundations of OOP, while the student presentations will focus on the applications and extensions of Object Technology.
Ceg 750-01: Microprocessor, Jack Jean
Ceg 750-01: Microprocessor, Jack Jean
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 435/635-01: Distributed Computing And Systems, Yong Pei
Ceg 435/635-01: Distributed Computing And Systems, Yong Pei
Computer Science & Engineering Syllabi
Study of process coordination, client-server computing, network and distributed operating systems, network and distributed file systems, concurrency control, recovery of distributed transactions, and fault-tolerant computing.
Ceg 433/633-01: Operating Systems, Prabhaker Mateti
Ceg 433/633-01: Operating Systems, Prabhaker Mateti
Computer Science & Engineering Syllabi
The management of resources in multi-user computer systems. Emphasis is on problems of file-system design, process scheduling, memory allocation, protection, and tools needed for solutions. Course projects use the C/C++ language and include the design of portions of an operating system. 4 credit hours.
Ceg 411/611: Microprocessor-Based System Design, Jack Jean
Ceg 411/611: Microprocessor-Based System Design, Jack Jean
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 360/560-01: Digital System Design, Travis E. Doom
Ceg 360/560-01: Digital System Design, Travis E. Doom
Computer Science & Engineering Syllabi
Design of digital systems. Topics include flip-flops, registers, counters, programmable logic devices, memory devices, register-level design, and microcomputer system organization.
Driving Deep Semantics In Middleware And Networks: What, Why And How?, Amit P. Sheth
Driving Deep Semantics In Middleware And Networks: What, Why And How?, Amit P. Sheth
Kno.e.sis Publications
No abstract provided.
Predicting Domain Specific Entities With Limited Background Knowledge, Christopher Thomas, Amit P. Sheth
Predicting Domain Specific Entities With Limited Background Knowledge, Christopher Thomas, Amit P. Sheth
Kno.e.sis Publications
This paper proposes a framework for automatic recognition of domain-specific entities from text, given limited background knowledge, e.g. in form of an ontology. The algorithm exploits several lightweight natural language processing techniques, such as tokenization and stemming, as well as statistical techniques, such as singular value decomposition (SVD) to suggest domain relatedness of unknown entities.
Semi-Supervised Conditional Random Fields For Improved Sequence Segmentation And Labeling, Feng Jiao, Shaojun Wang, Chi-Hoon Lee, Russell Greiner, Dale Schuurmans
Semi-Supervised Conditional Random Fields For Improved Sequence Segmentation And Labeling, Feng Jiao, Shaojun Wang, Chi-Hoon Lee, Russell Greiner, Dale Schuurmans
Kno.e.sis Publications
We present a new semi-supervised training procedure for conditional random fields (CRFs) that can be used to train sequence segmentors and labelers from a combination of labeled and unlabeled training data. Our approach is based on extending the minimum entropy regularization framework to the structured prediction case, yielding a training objective that combines unlabeled conditional entropy with labeled conditional likelihood. Although the training objective is no longer concave, it can still be used to improve an initial model (e.g. obtained from supervised training) by iterative ascent. We apply our new training algorithm to the problem of identifying gene and protein …
Using Query-Specific Variance Estimates To Combine Bayesian Classifiers, Chi-Hoon Lee, Russell Greiner, Shaojun Wang
Using Query-Specific Variance Estimates To Combine Bayesian Classifiers, Chi-Hoon Lee, Russell Greiner, Shaojun Wang
Kno.e.sis Publications
Many of today's best classification results are obtained by combining the responses of a set of base classifiers to produce an answer for the query. This paper explores a novel "query specific" combination rule: After learning a set of simple belief network classifiers, we produce an answer to each query by combining their individual responses, using weights based inversely on their respective variances around their responses. These variances are based on the uncertainty of the network parameters, which in turn depend on the training datasample. In essence, this variance quantifies the base classifier's confidence of its response to this query. …
Clustering Similarity Comparison Using Density Profiles, Eric Bae, James Bailey, Guozhu Dong
Clustering Similarity Comparison Using Density Profiles, Eric Bae, James Bailey, Guozhu Dong
Kno.e.sis Publications
The unsupervised nature of cluster analysis means that objects can be clustered in many ways, allowing different clustering algorithms to generate vastly different results. To address this, clustering comparison methods have traditionally been used to quantify the degree of similarity between alternative clusterings. However, existing techniques utilize only the point memberships to calculate the similarity, which can lead to unintuitive results. They also cannot be applied to analyze clusterings which only partially share points, which can be the case in stream clustering. In this paper we introduce a new measure named ADCO, which takes into account density profiles for each …
An Online Discriminative Approach To Background Subtraction, Li Cheng, Shaojun Wang, Terry Caelli
An Online Discriminative Approach To Background Subtraction, Li Cheng, Shaojun Wang, Terry Caelli
Kno.e.sis Publications
We present a simple, principled approach to detecting foreground objects in video sequences in real-time. Our method is based on an on-line discriminative learning technique that is able to cope with illumination changes due to discontinuous switching, or illumination drifts caused by slower processes such as varying time of the day. Starting from a discriminative learning principle, we derive a training algorithm that, for each pixel, computes a weighted linear combination of selected past observations with time-decay. We present experimental results that show the proposed approach outperforms existing methods on both synthetic sequences and real video data.
Semantics Enabled Dynamic Process Configuration, Kunal Verma, Karthik Gomadam, Jonathan Lathem, Amit P. Sheth, John A. Miller
Semantics Enabled Dynamic Process Configuration, Kunal Verma, Karthik Gomadam, Jonathan Lathem, Amit P. Sheth, John A. Miller
Kno.e.sis Publications
Web processes are the next generation workflows created using Web services. This paper addresses research issues in creating a framework for configuring and executing dynamic Web processes. Our approach is that of a multiparadigm constraint analysis for process configuration using quantitative and logical constraints. We also present a software architecture and an engineering approach for extending current Web service infrastructure to support dynamic Web processes. An execution environment, extending Apache Axis, one of the most popular SOAP implementations, to support dynamic process configuration is presented. Empirical evaluation of the system is performed to demonstrate the cost benefits of dynamic process …
Estimating Heterogeneous Capacity And Capacity Utilization In A Multi-Species Fishery, Ronald G. Felthoven, William C. Horrace, Kurt E. Schnier
Estimating Heterogeneous Capacity And Capacity Utilization In A Multi-Species Fishery, Ronald G. Felthoven, William C. Horrace, Kurt E. Schnier
Center for Policy Research
We use a stochastic production frontier model to investigate the presence of heterogeneous production and its impact on fleet capacity and capacity utilization in a multi-species fishery. Furthermore, we propose a new fleet capacity estimate that incorporates complete information on the stochastic differences between each vessel-specific technical efficiency distribution. Results indicate that ignoring heterogeneity in production technologies within a multi-species fishery, as well as the complete distribution of a vessel's technical efficiency score, may yield erroneous fleet-wide production profiles and estimates of capacity. Furthermore, our new estimate of capacity enables out-of-sample production predictions predicated on either homogeneity or heterogeneity modeling …
Frames In Hilbert C*-Modules, Wu Jing
Frames In Hilbert C*-Modules, Wu Jing
Electronic Theses and Dissertations
Since the discovery in the early 1950's, frames have emerged as an important tool in signal processing, image processing, data compression and sampling theory etc. Today, powerful tools from operator theory and Banach space theory are being introduced to the study of frames producing deep results in frame theory. In recent years, many mathematicians generalized the frame theory from Hilbert spaces to Hilbert C*-modules and got significant results which enrich the theory of frames. Also there is growing evidence that Hilbert C*-modules theory and the theory of wavelets and frames are tightly related to each other in many aspects. Both …
The Impact Of Hypoxia On Mercury Methylation In Bottom Sediment Of Northern Gulf Of Mexico, Mei Huey Tan
The Impact Of Hypoxia On Mercury Methylation In Bottom Sediment Of Northern Gulf Of Mexico, Mei Huey Tan
LSU Master's Theses
Widespread concern has developed about high mercury content in fish in the Gulf of Mexico and adjacent estuaries and bays. Among the areas implicated as possible sources of the mercury that moves up the food chain from the methylmercury formed in sediments and anoxic waters is the seasonal hypoxic zone in the northern Gulf. This research was designed to determine if methylmercury formation is stimulated by the anaerobic sediment conditions accompanying the onset of summer hypoxia in the Gulf. Both field and laboratory studies were carried out. For the field study sediment samples were collected at three stations (i.e. C4, …
Zero Effluent Stretch Target (Zest), Orla O'Connor
Zero Effluent Stretch Target (Zest), Orla O'Connor
Theses
The goals of this project were to assess the viability of avoiding water use and of “cascading” water uses, i.e. using outlet water from one process in another activity, possibly with some purification, including the upgrading of the final effluent stream for internal reuse. Water use has been inventoried at FMC Biopolymer, Cork. Avoidance and reduction measures were identified that could reduce water consumption from 49m /hr to 19 m /hr (a reduction in excess of 60%), with an annual saving in excess of €350,000. These projects were assessed for feasibility and implementation. Potential streams that could be subject to …
Solvent Targeting, Avoidance And Recovery Trials (Start), Kealan Allen
Solvent Targeting, Avoidance And Recovery Trials (Start), Kealan Allen
Theses
Solvent is the largest-volume raw material used at Janssen Pharmaceutical (Ire) Ltd. Over 2.2 million m3 were used in 2004. The top 13 solvents make up 99% of this amount. There are two main uses for solvent on site, processing and cleaning. Processing uses 55% of the total solvent used on site, cleaning uses the remainder.
Waste solvent forms the majority of the hazardous waste produced at Janssen. Three treatment options exist at present for this waste: incineration, recovery for reuse and energy recovery. All of the hazardous waste produced on site must be exported for these treatment options, …
Information Systems And Health Care Xiii: Examining The Critical Requirements, Design Approaches And Evaluation Methods For A Public Health Emergency Response System, Ann L. Fruhling
Information Systems and Quantitative Analysis Faculty Publications
Research pertaining to emergency response systems has accelerated over the past few years, particularly since 9/11 events, and more recently due to Hurricane Katrina and concern over a potential of an avian flu pandemic. This study examines the requirements that are the most demanding with respect to software and hardware, and the associated design strategies for a public health emergency response system (ERS) for electronic laboratory diagnostics consultation. In addition, this study illustrates ways to evaluate the design decisions.
An important goal of a public health ERS is to improve the communication and notification of life-threatening diseases and harmful agents. …
The Impacts Of The Cascading Style Sheet Standard On Mobile Computing, Matt Germonprez, Michel Avital, Nikhil Srinivasan
The Impacts Of The Cascading Style Sheet Standard On Mobile Computing, Matt Germonprez, Michel Avital, Nikhil Srinivasan
Information Systems and Quantitative Analysis Faculty Publications
By design, mobile computing aims to support numerous expressions of varying interfaces, contexts, and automation. Thus, as mobile computing becomes more prevalent, it is important that designers build systems in support of as many as possible unique, in-use, and user-defined characteristics. We explore these requirements and propose to support them with two existing standardized technologies: Hypertext Markup Language (HTML) and cascading style sheets (CSS). Whereas we investigate the impact of the CSS standard in the context of computing in general and mobile computing in particular, we also focus on two emerging roles of this standard: device independence and usability. Our …
Analysis Of Aircraft Arrival Delay And Airport On-Time Performance, Yuqiong Bai
Analysis Of Aircraft Arrival Delay And Airport On-Time Performance, Yuqiong Bai
Electronic Theses and Dissertations
While existing grid environments cater to specific needs of a particular user community, we need to go beyond them and consider general-purpose large-scale distributed systems consisting of large collections of heterogeneous computers and communication systems shared by a large user population with very diverse requirements. Coordination, matchmaking, and resource allocation are among the essential functions of large-scale distributed systems. Although deterministic approaches for coordination, matchmaking, and resource allocation have been well studied, they are not suitable for large-scale distributed systems due to the large-scale, the autonomy, and the dynamics of the systems. We have to seek for nondeterministic solutions for …
Direct Nonlinear Optics Measurements Of Raman Gain In Bulk Glasses And Estimates Of Fiber Performance, Robert Stegeman
Direct Nonlinear Optics Measurements Of Raman Gain In Bulk Glasses And Estimates Of Fiber Performance, Robert Stegeman
Electronic Theses and Dissertations
The need for more bandwidth in communications has stimulated the search for new fiberizable materials with properties superior to fused silica which is the current state-of-the-art. One of the key properties is Raman gain by which a pump beam amplifies a signal beam of longer wavelength. An apparatus capable of directly measuring the spectral dependence and absolute magnitude of the material Raman gain coefficient using nonlinear optics techniques has been built. Using radiation from a 1064 nm Nd:YAG laser as the pump and from a tunable Optical Parametric Generator and Amplifier as the signal, the Raman gain spectrum was measured …
Propagation Effect In Inhomogeneous Media, Including Media With Light-Induced And Fixed Gratings, Chang-Ching Tsai
Propagation Effect In Inhomogeneous Media, Including Media With Light-Induced And Fixed Gratings, Chang-Ching Tsai
Electronic Theses and Dissertations
Optical waves propagation in various types of volume gratings, materials with constant impendence and optical fibers are studied. Instability of crossphase modulation and of Energy transfer via GRON-type (Grating-type Orientational Nonlinearity in Liquid Crystal) Stimulated Scattering is numerically observed. Two diffractive optical elements made of volume gratings are suggested and analyzed. A transmission hologram based on the analogy with Stimulated Raman Adiabatic Passage (STIRAP) in nonlinear optics is proposed. This transmission hologram demonstrates high diffraction efficiency and low sensitivity to polarization and hologram strength. The other is a reflection hologram with two crossed-gratings. It features good angular selectivity in comparison …
Effect Of Germanium Doping On Erbium Sensitization In The Erbium Doped Silicon Rich Silica Material System, Forrest Ruhge
Effect Of Germanium Doping On Erbium Sensitization In The Erbium Doped Silicon Rich Silica Material System, Forrest Ruhge
Electronic Theses and Dissertations
The continued size reduction in electronic integrated circuits has lead to a demand for on-chip high-bandwidth and low loss communication channels. Optical interconnects are considered an essential addition to the silicon electronics platform. A major challenge in the field of integrated Si photonics is the development of cost effective silicon compatible light sources. This thesis investigates the sensitization of group IV doped silica films emitting at 1.535μm for applications as silicon compatible light sources. Thin erbium-doped silica films containing excess silicon and germanium were deposited using a multi-gun sputter system. The composition of the deposited materials was verified by Rutherford …
Molecular Structure-Nonlinear Optical Property Relationships For A Series Of Polymethine And Squaraine Molecules, Jie Fu
Electronic Theses and Dissertations
This dissertation reports on the investigation of the relationships between molecular structure and two-photon absorption (2PA) properties for a series of polymethine and squaraine molecules. Current and emerging applications exploiting the quadratic dependence upon laser intensity, such as two-photon fluorescence imaging, three-dimensional microfabrication, optical data storage and optical limiting, have motivated researchers to find novel materials exhibiting strong 2PA. Organic materials are promising candidates because their linear and nonlinear optical properties can be optimized for applications by changing their structures through molecular engineering. Polymethine and squaraine dyes are particularly interesting because they are fluorescent and showing large 2PA. We used …