Science and Technology Studies Commons^™

Acquisition Of Owl Dl Axioms From Lexical Resources, Johanna Volker, Pascal Hitzler, Philipp Cimiano

Computer Science and Engineering Faculty Publications

State-of-the-art research on automated learning of ontologies from text currently focuses on inexpressive ontologies. The acquisition of complex axioms involving logical connectives, role restrictions, and other expressive features of the Web Ontology Language OWL remains largely unexplored. In this paper, we present a method and implementation for enriching inexpressive OWL ontologies with expressive axioms which is based on a deep syntactic analysis of natural language definitions. We argue that it can serve as a core for a semi-automatic ontology engineering process supported by a methodology that integrates methods for both ontology learning and evaluation. The feasibility of our approach is …

Algorithms For Paraconsistent Reasoning With Owl, Yue Ma, Pascal Hitzler, Zuoquan Lin

Computer Science and Engineering Faculty Publications

In an open, constantly changing and collaborative environment like the forthcoming Semantic Web, it is reasonable to expect that knowledge sources will contain noise and inaccuracies. Practical reasoning techniques for ontologies therefore will have to be tolerant to this kind of data, including the ability to handle inconsistencies in a meaningful way. For this purpose, we employ paraconsistent reasoning based on four-valued logic, which is a classical method for dealing with inconsistencies in knowledge bases. Its transfer to OWL DL, however, necessitates the making of fundamental design choices in dealing with class inclusion, which has resulted in differing proposals for …

A Well-Founded Semantics For Hybrid Mknf Knowledge Bases, Matthias Knorr, Jose Julio Alferes, Pascal Hitzler

Computer Science and Engineering Faculty Publications

In [10], hybrid MKNF knowledge bases have been proposed for combining open and closed world reasoning within the logics of minimal knowledge and negation as failure ([8]). For this powerful framework, we define a three-valued semantics and provide an alternating fixpoint construction for nondisjunctive hybrid MKNF knowledge bases. We thus provide a well-founded semantics which is a sound approximation of the cautious MKNF model semantics, and which also features improved computational properties. We also show that whenever the DL knowledge base part is empty, then the alternating fixpoint coincides with the classical well-founded model.

Efficient Owl Reasoning With Logic Programs - Evaluations, Sebastian Rudolph, Markus Krotzsch, Pascal Hitzler, Michael Sintek, Denny Vrandecic

Computer Science and Engineering Faculty Publications

We report on efficiency evaluations concerning two different approaches to using logic programming for OWL [1] reasoning and show, how the two approaches can be combined.

Automatic Composition Of Semantic Web Services Using Process Mediation, Zixin Wu, Karthik Gomadam, Ajith Harshana Ranabahu, Amit P. Sheth, John A. Miller

Kno.e.sis Publications

Web service composition has quickly become a key area of research in the services oriented architecture community. One of the challenges in composition is the existence of heterogeneities across independently created and autonomously managed Web service requesters and Web service providers. Previous work in this area either involved significant human effort or in cases of the efforts seeking to provide largely automated approaches, overlooked the problem of data heterogeneities, resulting in partial solutions that would not support executable workflow for real-world problems. In this paper, we present a planning-based approach to solve both the process heterogeneity and data heterogeneity problems. …

Implications Of Research On Expertise For Curriculum And Pedagogy, David F. Feldon

Instructional Technology and Learning Sciences Faculty Publications

Instruction on problem solving in particular domains typically relies on explanations from experts about their strategies. However, research indicates that such self-reports often are incomplete or inaccurate (e.g., Chao & Salvendy, 1994; Cooke & Breedin, 1994). This article evaluates research on experts’ cognition, the accuracy of experts’ self-reports, and the efficacy of instruction based on experts’ self-reports. Analysis of this evidence indicates that experts’ free recall of strategies introduces errors and omissions into instructional materials that hinder student success. In contrast, when experts engage in structured knowledge elicitation techniques (e.g., cognitive task analysis), the resultant instruction is more effective. Based …

International Symposium On Technology And Society Invitation, David M. Hassenzahl

International Symposium on Technology and Society

Conference invitation

International Symposium On Technology And Society Program +, David M. Hassenzahl

International Symposium on Technology and Society

Conference program, call for papers, & proposal

Using Sawsdl For Semantic Service Interoperability, Kunal Verma, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

Semantic Annotations For Wsdl, Amit P. Sheth, Jacek Kopecky

Kno.e.sis Publications

No abstract provided.

Estimating The Cardinality Of Rdf Graph Patterns, Angela Maduko, Kemafor Anyanwu, Amit P. Sheth, Paul Schliekelman

Kno.e.sis Publications

Most RDF query languages allow for graph structure search through a conjunction of triples which is typically processed using join operations. A key factor in optimizing joins is determining the join order which depends on the expected cardinality of intermediate results. This work proposes a pattern-based summarization framework for estimating the cardinality of RDF graph patterns. We present experiments on real world and synthetic datasets which confirm the feasibility of our approach.

Altering Document Term Vectors For Classification - Ontologies As Expectations Of Co-Occurrence, Meenakshi Nagarajan, Amit P. Sheth, Marcos Aguilera, Kimberly Keeton, Arif Merchant, Mustafa Uysal

Kno.e.sis Publications

In this paper we extend the state-of-the-art in utilizing background knowledge for supervised classification by exploiting the semantic relationships between terms explicated in Ontologies. Preliminary evaluations indicate that the new approach generally improves precision and recall, more so for hard to classify cases and reveals patterns indicating the usefulness of such background knowledge.

Topscholar™ Brochure, Cindy Troutman, Connie Foster

TopSCHOLAR® Presentations and Reports

A brochure that gives basic points, contacts, and guidelines for TopSCHOLAR™, the research and creative activity database of Western Kentucky University, launched May 1, 2007.

Semantic Web: Technologies And Applications For The Real-World, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

Visualization Of Events In A Spatially And Multimedia Enriched Virtual Environment, Leonidas Deligiannidis, Farshad Hakimpour, Amit P. Sheth

Kno.e.sis Publications

Semantic Event Tracker (SET) is a highly interactive visualization tool for tracking and associating activities (events) in a spatially and Multimedia Enriched Virtual Environment. SET provides integrated views of information spaces while providing overview and detail to improve perception and evaluation of complex scenarios. We model an event as an object that describes an action and its location, time, and relations to other objects. Real world event information is extracted from Internet sources, then stored and processed using Semantic Web technologies that enable us to discover semantic associations between events. We use RDF graphs to represent semantic metadata and ontologies. …

An Experiment In Integrating Large Biomedical Knowledge Resources With Rdf: Application To Associating Genotype And Phenotype Information, Satya S. Sahoo, Olivier Bodenreider, Kelly Zeng, Amit P. Sheth

Kno.e.sis Publications

Bridging between genotype and phenotype is generally achieved through the integration of knowledge sources such as Entrez Gene (EG), Online Mendelian Inheritance in Man (OMIM) and the Gene Ontology (GO). Traditionally, such integration implies manual effort or the development of customized software. In this paper, we demonstrate how the Resource Description Framework (RDF) can be used to represent and integrate these resources and support complex queries over the unified resource. We illustrate the effectiveness of our approach by answering a real-world biomedical query linking a specific molecular function, glycosyltransferase, to the disorder congenital muscular dystrophy, which potentially forms a new …

Semantic Web Applications In Industry, Government, Health Care And Life Sciences, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

The Myth Of Technological Progress, Patrick Ryan

Inquiry Journal 2007

No abstract provided.

Spatiotemporal And Thematic Semantic Analytics, Matthew Perry

Kno.e.sis Publications

No abstract provided.

Towards Attack-Resilient Geometric Data Perturbation, Keke Chen, Ling Liu

Kno.e.sis Publications

Data perturbation is a popular technique for privacy-preserving data mining. The major challenge of data perturbation is balancing privacy protection and data quality, which are normally considered as a pair of contradictive factors. We propose that selectively preserving only the task/model specific information in perturbation would improve the balance. Geometric data perturbation, consisting of random rotation perturbation, random translation perturbation, and noise addition, aims at preserving the important geometric properties of a multidimensional dataset, while providing better privacy guarantee for data classification modeling. The preliminary study has shown that random geometric perturbation can well preserve model accuracy for several popular …

Mining Minimal Distinguishing Subsequence Patterns With Gap Constraints, Xiaonan Ji, James Bailey, Guozhu Dong

Kno.e.sis Publications

Discovering contrasts between collections of data is an important task in data mining. In this paper, we introduce a new type of contrast pattern, called a Minimal Distinguishing Subsequence (MDS). An MDS is a minimal subsequence that occurs frequently in one class of sequences and infrequently in sequences of another class. It is a natural way of representing strong and succinct contrast information between two sequential datasets and can be useful in applications such as protein comparison, document comparison and building sequential classification models. Mining MDS patterns is a challenging task and is significantly different from mining contrasts between relational/transactional …

Review Of Decade Of Disaster, By Ann Larabee, Vibha Arora

Reconstruction: Studies in Contemporary Culture

[First paragraph]

High-risk technologies cannot prevent, predict, or contain disasters while discourses about such disasters exhibit uncontrolled interpretive possibilities. There is no safe haven, no place that can be free of technological disasters, and such 'unnecessary' violence. What we can plan are escape routes and lifeboats that may rescue us occasionally and fail at other times. Paradoxically lifeboats, radars, containment measures, meters, backup systems cannot shelter all of us from technological risk. Is this the meaning of civilization and human progress? We need to question not merely high-risk technology and its engendered profit but the cultural future premised on such …

Automatic Composition Of Semantic Web Services Using Process And Data Mediation, Zixin Wu, Ajith H. Ranabahu, Karthik Gomadam, Amit P. Sheth, John A. Miller

Kno.e.sis Publications

Web service composition has quickly become a key area of research in the services oriented architecture community. One of the challenges in composition is the existence of heterogeneities across independently created and autonomously managed Web service requesters and Web service providers. Previous work in this area either involved significant human effort or in cases of the efforts seeking to provide largely automated approaches, overlooked the problem of data heterogeneities, resulting in partial solutions that would not support executable workflow for real-world problems. In this paper, we present a planning-based approach to solve both the process heterogeneity and data heterogeneity problems. …

Topscholar Digital Research Repository@Wku, Mike Binder

TopSCHOLAR® Presentations and Reports

This PowerPoint presentation was given at the Western Kentucky University’s Council of Academic Deans Research Retreat to familiarize the group with the concept of Institutional Repositories and to begin the first steps towards establishing one at WKU, to be called TopSCHOLAR™. Definitions, benefits, values, guarantees for success, and examples of content are included.

Engineering Mathematics Education At Wright State University: Uncorking The First Year Bottleneck, Nathan W. Klingbeil, Kuldip S. Rattan, Michael L. Raymer, David B. Reynolds, Richard Mercer

Kno.e.sis Publications

No abstract provided.

Intellectual Property Management In Health And Agricultural Innovation: A Handbook Of Best Practices, Vol. 2, Anatole Krattiger, Richard T. Mahoney, Lita Nelsen, Jennifer A. Thomson, Alan B. Bennett, Kanikaram Satyanarayana, Gregory D. Graff, Carlos Fernandez, Stanley Kowalski

Law Faculty Scholarship

Prepared by and for policy-makers, leaders of public sector research establishments, technology transfer professionals, licensing executives, and scientists, this online resource offers up-to-date information and strategies for utilizing the power of both intellectual property and the public domain. Emphasis is placed on advancing innovation in health and agriculture, though many of the principles outlined here are broadly applicable across technology fields. Eschewing ideological debates and general proclamations, the authors always keep their eye on the practical side of IP management. The site is based on a comprehensive Handbook and Executive Guide that provide substantive discussions and analysis of the opportunities …

Motorized Obsessions: Life, Liberty, And The Small-Bore Engine, Paul R. Josephson

Faculty Books

From dirt bikes and jet skis to weed wackers and snowblowers, machines powered by small gas engines have become a permanent—and loud—fixture in American culture. But fifty years of high-speed fun and pristine lawns have not come without cost.

In the first comprehensive history of the small-bore engine and the technology it powers, Paul R. Josephson explores the political, environmental, and public health issues surrounding one of America's most dangerous pastimes. Each chapter tells the story of an ecosystem within the United States and the devices that wreak havoc on it—personal watercraft (PWCs) on inland lakes and rivers; all-terrain vehicles …

Table Of Contents (V. 19, 2007)

BEADS: Journal of the Society of Bead Researchers

No abstract provided.

Chemical Composition Of Late 18th- And 19th-Century Glass Beads From Western North America: Clues To Sourcing Beads, Laurie E. Burgess, Laure Dussubieux

BEADS: Journal of the Society of Bead Researchers

The Sullivans Island glass bead collection at the Smithsonian's National Museum of Natural History contains over 56,000 beads which date from the late 18th to the late 19th century. Excavated in the 1930s from a site on the Columbia River in the Plateau region of North America, this collection contains examples of most known bead varieties for this time period. Many of the beads conform to varieties that have been attributed to Bohemia, Venice, and China-three of the main bead-producing centers for this time period. One hundred and twenty-four beads were subjected to Laser-Ablation Inductively-Coupled Mass-Spectrometry (LA-ICP-MS) analysis at the …

In Memoriam: Mary Elizabeth Good, 1930-2007, Marvin T. Smith

BEADS: Journal of the Society of Bead Researchers

Bead researcher Mary Elizabeth Good died December 18, 2007. A native of Tulsa, Oklahoma, she was 77 years old. Mary Elizabeth was well-known and respected as an early researcher of trade beads in North America. Her first publication, "Guebert Site: An 18th century Historic Kaskaskia Indian Village in Randolph County, Illinois" (1972), is considered a classic in bead studies. Mary Elizabeth was active in the Society of Bead Researchers, serving as Chair of the Publications Committee from 1989 to 1993, and as President of the Society from 1994 to 1996. The bead community has lost an important member.