Digital Commons Network^™

Bias Matroids With Unique Graphical Representations, Dan Slilaty

Mathematics and Statistics Faculty Publications

Given a 3-connected biased graph Ω with three node-disjoint unbalanced circles, at most one of which is a loop, we describe how the bias matroid of Ω is uniquely represented by Ω.

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.

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

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

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.

Graduate Course Descriptions, 2006 Winter, Wright State University

Course Descriptions

Wright State University graduate course descriptions from Winter 2006.

Formalizing Ontology Alignment And Its Operations With Category Theory, Antoine Zimmermann, Markus Krotzsch, Jerome Euzenat, Pascal Hitzler

Computer Science and Engineering Faculty Publications

An ontology alignment is the expression of relations between different ontologies. In order to view alignments independently from the language expressing ontologies and from the techniques used for finding the alignments, we use a category-theoretical model in which ontologies are the objects. We introduce a categorical structure, called V-alignment, made of a pair of morphisms with a common domain having the ontologies as codomain. This structure serves to design an algebra that describes formally what are ontology merging, alignment composition, union and intersection using categorical constructions. This enables combining alignments of various provenance. Although the desirable properties of this algebra …

Sulfur Isotope Geochemistry Of Sulfide Minerals, Robert R. Seal Ii

United States Geological Survey: Staff Publications

Sulfur, the 10th most abundant element in the universe and the 14th most abundant element in the Earth’s crust, is the defining element of sulfide minerals and provides insights into the origins of these minerals through its stable isotopes. The insights come from variations in the isotopic composition of sulfide minerals and related compounds such as sulfate minerals or aqueous sulfur species, caused by preferential partitioning of isotopes among sulfur-bearing phases, known as fractionation. These variations arise from differences in temperature, or more importantly, oxidation and reduction reactions acting upon the sulfur. The oxidation and reduction reactions can occur at …

2006-07 Catalog, Harrisburg University

HU Catalogs and Handbooks

No abstract provided.

Effectiveness Of Asynchronous Reference Services For Distance Learning Students Within Florida's Community College System, Patricia C. Profeta

CCAC Theses and Dissertations

The impact of distance learning on higher education and the need to provide equitable library services to students in the digital environment emerged as critical areas during the 1990s. Library services available to distance learning students included digital reference and instructional services, remote access to online research tools, database and research tutorials, interlibrary loan, and document delivery. Digital reference services appeared to be one of the more significant services proffered by academic libraries although these services were developed often without forethought to goals and assessment. The purpose of this study was to examine the adequacy of asynchronous e-mail reference services …

Fluorescent Analysis Of Translesion Dna Synthesis By Using A Novel, Non-Natural Nucleotide Analogue, Irene Lee, Anthony J. Berdis

Chemistry Faculty Publications

The replication of damaged DNA is a promutagenic process that can lead to disease development. This report evaluates the dynamics of nucleotide incorporation opposite an abasic site, a commonly formed DNA lesion, by using two fluorescent nucleotide analogues, 2-aminopurine deoxyribose triphosphate (2-APTP) and 5-phenylindole deoxyribose triphosphate (5-PhITP). In both cases, the kinetics of incorporation were compared by using a 32 P-radiolabel extension assay versus a fluorescence-quenching assay. Although 2-APTP is efficiently incorporated opposite a templating nucleobase (thymine), the kinetics for incorporation opposite an abasic site are significantly slower. The lower catalytic efficiency hinders its use as a probe to study …

Recent Developments Inthe Mechanistic Enzymology Of The Atp-Dependent Lon Protease From Escherichia Coli: Highlights From Kinetic Studies, Irene Lee, Anthony J. Berdis, Carolyn K. Suzuki

Chemistry Faculty Publications

Lon protease, also known as protease La, is one of the simplest ATP-dependent proteases that plays vital roles in maintaining cellular functions by selectively eliminating misfolded, damaged and certain short-lived regulatory proteins. Although Lon is a homo-oligomer, each subunit of Lon contains both an ATPase and a protease active site. This relatively simple architecture compared to other hetero-oligomeric ATP-dependent proteases such as the proteasome makes Lon a useful paradigm for studying the mechanism of ATP-dependent proteolysis. In this article, we survey some recent developments in the mechanistic characterization of Lon with an emphasis on the utilization of pre-steady-state enzyme kinetic …

2006 January, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Press releases for January 2006.

Intersecting Circles And Their Inner Tangent Circle, Max Tran

Publications and Research

We derive the general equation for the radius of the inner tangent circle that is associated with three pairwise intersecting circles. We then look at three special cases of the equation.

Title Page - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Track & Field - Cross Country Media Guide 2006-2007, University Of Northern Iowa

Athletics Media Guides

Contents:

--Coaching Staff --3-8
--Meet the Panthers --9-42
--Cross Country --45-52
--Track and Field History --53-72
--This is UNI --73-80

The Morality Of Evolutionarily Self-Interested Rescues, Bailey Kuklin

Faculty Scholarship

No abstract provided.

Rankings, Reductionism, And Responsibility, Frank Pasquale

Faculty Scholarship

No abstract provided.

Generalized Geologic Map For Land-Use Planning: Fleming County, Kentucky, Daniel I. Carey, Joseph Buckles

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.

Actual Usage Conditions And Energy Consumption Of Refrigerator-Freezers, Rahman Saidur, Haji Hassan Masjuki, K.F. Eow, M.Y. Jamaluddin

Research Publications (2006 to 2010)

About 19 of the total electricity production is consumed in the residential sector and this fraction is expected to grow in future. Air conditioners, refrigerators, washing machines and other appliances are significant energy users in this sector. In this paper, the energy consumption and internal cabinet temperatures of 30 domestic refrigerators have been monitored to give an overview of the usage pattern of this appliance in Malaysian households. A questionnaire was designed to get relevant information regarding the usage of this appliance in the actual kitchen environment as well. This information is paramount in shaping or implementing a program that …

Application Of Model Predictive Control To Batch Polymerization Reactor, N.M. Ghasem, Mohd Azlan Hussain, S.A. Sata

Research Publications (2006 to 2010)

The absence of a stable operational state in polymerization reactors that operates in batches is factor that determine the need of a special control system. in this study advanced control metodology is implemented for controlling the operation of a batch polimerization reactor for polystyrene production utilizing model predective control. By utilizing a model of the polimerization process, the necessary operational conditonal were determined for producing the polymer within the desired characteristics. The main control objective is to bring the reactor temperature to its target temperature rapidly as posible with minimal temperature overshoot. Control performance for the proposed method is encouraging. …

Classifying Short Duration Voltage Disturbances Using Fuzzy Expert System, G.A. Mahdiraji, A. Mohamed

Research Publications (2006 to 2010)

In this paper, fuzzy logic is applied for identifying and classifying the short duration voltage variations of 8, 32 and 128 cycles waveforms. A program is written in Matlab to determine the parameters such as duration, maximum and minimum root mean square voltages of a disturbance by using the fast Fourier transform analysis. Based on these parameters, a fuzzy inference system has been developed with five fuzzy inputs, three fuzzy outputs and 139 fuzzy rules. The inputs are the maximum and minimum voltage magnitudes in per unit and disturbance duration in seconds. On the other hand, the outputs are namely …

Developing An Intelligent System To Acquire Meeting Knowledge In Problem-Based Learning Environments, A. Chiang, M.S. Baba

Research Publications (2006 to 2010)

MALESAbrain1-3 is an intelligent algorithm which originally is designed for problem-based learning (PBL) environment. Similarly, the algorithm proposed in MALESAbrain can, be used to deal, the problem of conducting a meeting among learners to solve problems. This project adapts the original MALESAbrain definitions and algorithm to create an intelligent learning tool; then, testing the tool in a students' meeting to discuss "To build up programming skills for computer science students, do you agree JAVA is a proper language in the first year foundation, course for computer science students"? Consequently; this paper concludes that MALESAbrain is a new methodology for meeting, …

Development Of Automated Fault Location Software For Distribution Network, Hazlie Mokhlis, A.R. Khalid, H.Y. Li

Research Publications (2006 to 2010)

This paper presents on an ongoing development of automated fault location software for distribution network. The proposed method of the software is able to identify the most possible faulty section based on voltage sags feature i.e. magnitude and phase shift. The actual voltage sags caused by fault is compares with simulated voltage sags stored in a database. The matching will give all possible faulty sections that have been stored in the database. The software is developed by integrating various software modules. The module will be developed into a component type using Component Based Development (CBD) approach. By developing the software …

Direct Regeneration And Rapd Assessment Of Male Inflorescence Derived Plants Of Musa Cuminata Cv. Berangan, A.A. Harirah, Norzulaani Khalid

Research Publications (2006 to 2010)

Regenerated plants were established using male inflorescence of Musa acuminata cv. Berangan. Explants were cultured on Murashige and Skoog (MS) solid medium supplemented with three different concentrations of 6-benzylaminopurine (BAP). After 2 weeks, whitish bud-like structures (WBLS) were obtained and MS media supplemented with 70.0 μM BAP was observed as the best media for the growth of WBLS. After 3 months, shoot-like structures emerged and MS media supplemented with 31.0 μM BAP gave a large number of shoot formation. Normal looking plantlets were obtained within 4 - 6 months with an average of 80 - 130 shoots regenerated from each …

Intelligent Control For Self-Erecting Inverted Pendulum Via Adaptive Neuro-Fuzzy Inference System, A.A. Saifizul, Z. Zainon, Noor Azuan Abu Osman, C.A. Azlan, U.F.S.U. Ibrahim

Research Publications (2006 to 2010)

A self-erecting single inverted pendulum (SESIP) is one of typical nonlinear systems. The control scheme running the SESIP consists of two main control loops. Namely, these control loops are swing-up controller and stabilization controller. A swing-up controller of an inverted pendulum system must actuate the pendulum from the stable position. While a stabilization controller must stand the pendulum in the unstable position. To deal with this system, a lot of control techniques have been used on the basis of linearized or nonlinear model. In real-time implementation, a real inverted pendulum system has state constraints and limited amplitude of input. These …

Load Response Towards Voltage In Tnb Power System Using The Measurement Approach, A.H.A. Bakar, S. Yusof, M. Satchiananda, Saad Mekhilef

Research Publications (2006 to 2010)

This paper reports the load-voltage dependency using field measurements for a faulted condition that caused a momentary voltage sag in a Tenaga Nasional Berhad network in the Central Region. The static load model is used in this study and its suitability is discussed in comparison to the dynamic load model. A fast method of calculating real and reactive power based on available information is devised. Propagation of fault through transformers is also investigated. The effect of voltage on real and reactive power is discussed at great length. Various factors influence the load characteristic, including weather, time of day, network conditions …

Multiple Intelligences And Academic Performance Among Malaysian Undergraduate Dental Students, R. Ahmad, N.H. Abu Kasim, A.K. Palaniappan

Research Publications (2006 to 2010)

Objectives: To identify the nature of multiple intelligences among dental students and investigate the relationship between these intelligences and performance in the various skill areas of dentistry. Methods: Sixty-one final year dental students at the Faculty of Dentistry, University of Malaya in Malaysia were administered a Multiple Intelligence Inventory (MII), David Larear, 1991) after their final written examinations. MII comprised 80 4-point likert items assessing eight types of multiple intelligences: Verbal/Linguistic, Visual Spatial, Logical Mathematical, Musical Rhythmic, Intra Personal, Body Kinesthetic, Inter Personal and Naturalist. These intelligences were correlated with six academic performance scores: Amalgam Class II, Composite, Crown & …