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Communication Technology and New Media Commons™

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2007

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Articles 61 - 90 of 151

Full-Text Articles in Communication Technology and New Media

Measuring Inconsistency For Description Logics Based On Paraconsistent Semantics, Yue Ma, Guilin Qi, Pascal Hitzler, Zuoquan Lin Jun 2007

Measuring Inconsistency For Description Logics Based On Paraconsistent Semantics, Yue Ma, Guilin Qi, Pascal Hitzler, Zuoquan Lin

Computer Science and Engineering Faculty Publications

In this paper, we propose an approach for measuring inconsistency in inconsistent ontologies. We first define the degree of inconsistency of an inconsistent ontology using a four-valued semantics for the description logic ALC. Then an ordering over inconsistent ontologies is given by considering their inconsistency degrees. Our measure of inconsistency can provide important information for inconsistency handling.

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Foundations Of Refinement Operators For Description Logics, Jens Lehmann, Pascal Hitzler Jun 2007

Foundations Of Refinement Operators For Description Logics, Jens Lehmann, Pascal Hitzler

Computer Science and Engineering Faculty Publications

In order to leverage techniques from Inductive Logic Programming for the learning in description logics (DLs), which are the foundation of ontology languages in the Semantic Web, it is important to acquire a thorough understanding of the theoretical potential and limitations of using refinement operators within the description logic paradigm. In this paper, we present a comprehensive study which analyses desirable properties such operators should have. In particular, we show that ideal refinement operators in general do not exist, which is indicative of the hardness inherent in learning in DLs. We also show which combinations of desirable properties are theoretically …

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A Refinement Operator Based Learning Algorithm For The Alc Description Logic, Jens Lehmann, Pascal Hitzler Jun 2007

A Refinement Operator Based Learning Algorithm For The Alc Description Logic, Jens Lehmann, Pascal Hitzler

Computer Science and Engineering Faculty Publications

With the advent of the Semantic Web, description logics have become one of the most prominent paradigms for knowledge representation and reasoning. Progress in research and applications, however, faces a bottleneck due to the lack of available knowledge bases, and it is paramount that suitable automated methods for their acquisition will be developed. In this paper, we provide the first learning algorithm based on refinement operators for the most fundamental description logic ALC. We develop the algorithm from thorough theoretical foundations and report on a prototype implementation.

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Selecting Labels For News Document Clusters, Krishnaprasad Thirunarayan, Trivikram Immaneni, Mastan Vali Shaik Jun 2007

Selecting Labels For News Document Clusters, Krishnaprasad Thirunarayan, Trivikram Immaneni, Mastan Vali Shaik

Kno.e.sis Publications

This work deals with determination of meaningful and terse cluster labels for News document clusters. We analyze a number of alternatives for selecting headlines and/or sentences of document in a document cluster (obtained as a result of an entity-event-duration query), and formalize an approach to extracting a short phrase from well-supported headlines/sentences of the cluster that can serve as the cluster label. Our technique maps a sentence into a set of significant stems to approximate its semantics, for comparison. Eventually a cluster label is extracted from a selected headline/sentence as a contiguous sequence of words, resuscitating word sequencing information lost …

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Acquisition Of Owl Dl Axioms From Lexical Resources, Johanna Volker, Pascal Hitzler, Philipp Cimiano Jun 2007

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 …

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Algorithms For Paraconsistent Reasoning With Owl, Yue Ma, Pascal Hitzler, Zuoquan Lin Jun 2007

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 …

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A Well-Founded Semantics For Hybrid Mknf Knowledge Bases, Matthias Knorr, Jose Julio Alferes, Pascal Hitzler Jun 2007

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.

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Efficient Owl Reasoning With Logic Programs - Evaluations, Sebastian Rudolph, Markus Krotzsch, Pascal Hitzler, Michael Sintek, Denny Vrandecic Jun 2007

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.

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Automatic Composition Of Semantic Web Services Using Process Mediation, Zixin Wu, Karthik Gomadam, Ajith Harshana Ranabahu, Amit P. Sheth, John A. Miller Jun 2007

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. …

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Information And Communications Technology For Small And Medium Enterprises In Egypt, Moustafa Yosry Khalil Jun 2007

Information And Communications Technology For Small And Medium Enterprises In Egypt, Moustafa Yosry Khalil

Archived Theses and Dissertations

No abstract provided.

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Videoblogging As An Online News Phenomenon : An Exploratory Study, Tauheed Ramjaun Jun 2007

Videoblogging As An Online News Phenomenon : An Exploratory Study, Tauheed Ramjaun

Archived Theses and Dissertations

This study explores the emergence of videoblogging as an online news phenomenon and investigates how this new technology is being adopted as a innovative mode of news diffusion. Rogers' diffusion of innovations theoretical framework is being used to analyze the characteristics of this innovation and that of its adopters with particular reference to online news diffusion. Findings indicate that the early adopters tend to be predominantly young male adults located in the higher income regions of the world. Video content posted is predominantly related to arts and entertainment with a substantial minority related to current affairs and politics. While the …

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Fitting Disposition Codes To Mobile Phone Surveys: Experiences From Studies In Finland, Slovenia And The Usa, Mario Callegaro, Charlotte Steeh, Trent D. Buskirk, Vasja Vehovar, Vesa Kuusela, Linda Piekarski May 2007

Fitting Disposition Codes To Mobile Phone Surveys: Experiences From Studies In Finland, Slovenia And The Usa, Mario Callegaro, Charlotte Steeh, Trent D. Buskirk, Vasja Vehovar, Vesa Kuusela, Linda Piekarski

UNL-Gallup Working Papers Series

Using mobile phones to conduct survey interviews has gathered momentum recently. However, using mobile telephones in surveys poses many new challenges. One important challenge involves properly classifying final case dispositions to understand response rates and non-response error and to implement responsive survey designs. Both purposes demand accurate assessments of the outcomes of individual call attempts. By looking at actual practices across three countries, we suggest how the disposition codes of the American Association for Public Opinion Research, which have been developed for telephone surveys, can be modified to fit mobile phones. Adding an international dimension to these standard definitions will …

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The Role Of Online Media In Revolutionizing Science Communication In The Arab World: A Uses And Gratifications Approach, Nadia Abbas El-Awady May 2007

The Role Of Online Media In Revolutionizing Science Communication In The Arab World: A Uses And Gratifications Approach, Nadia Abbas El-Awady

Archived Theses and Dissertations

No abstract provided.

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Changing With The Times? Library Associations And New Librarians., Megan V. Isenburg, Daniel G. Kipnis, Rebecca Pernell May 2007

Changing With The Times? Library Associations And New Librarians., Megan V. Isenburg, Daniel G. Kipnis, Rebecca Pernell

The Selected Works of Dan Kipnis

To determine what services and programs of national library associations are most valuable to newer librarians. As young librarians enter the workforce, many are deciding whether or not to join and become involved with library associations such as SLA, MLA, and their regional chapters. What they decide will become increasingly important to library associations as the traditional member base reaches retirement age. To determine what might attract younger librarians, a survey was emailed to various listservs to ascertain what services are considered most valuable.

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Using Sawsdl For Semantic Service Interoperability, Kunal Verma, Amit P. Sheth May 2007

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

Kno.e.sis Publications

No abstract provided.

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Broaden Your Reach: Instant Messaging From The Reference Desk-It's Worth It!, Daniel G. Kipnis, Gary E. Kaplan May 2007

Broaden Your Reach: Instant Messaging From The Reference Desk-It's Worth It!, Daniel G. Kipnis, Gary E. Kaplan

The Selected Works of Dan Kipnis

On January 23, 2006, the Scott Memorial Library started a pilot period offering Instant Messaging, first using AOL Instant Messenger (AIM), MSN and YAHOO! and then adding GoogleTalk and Meebo chat from our library web site. Our poster outlines lessons learned and successful strategies for implementing Instant Messaging simply and easily. In addition, we share analyzed data from the transcripts.

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Semantic Annotations For Wsdl, Amit P. Sheth, Jacek Kopecky May 2007

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

Kno.e.sis Publications

No abstract provided.

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Estimating The Cardinality Of Rdf Graph Patterns, Angela Maduko, Kemafor Anyanwu, Amit P. Sheth, Paul Schliekelman May 2007

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.

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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 May 2007

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.

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Employee Use Of The Internet And Acceptable Use Policies In The Academic Workplace: Controlling Abuse While Creating Culture., B.J. King May 2007

Employee Use Of The Internet And Acceptable Use Policies In The Academic Workplace: Controlling Abuse While Creating Culture., B.J. King

Electronic Theses and Dissertations

The use of the Internet has grown substantially, especially since the late 1990s. Businesses are relying increasingly on the Internet and intranet as tools to promote productivity. Use of the Internet has several implications for institutions of higher education. Some of the issues institutions are faced with include legal liability for defamatory postings and sexually explicit materials, monitoring versus privacy, motivations to abuse Internet privileges, and use of the Internet to create a corporate culture. Institutions of higher education need to consider how the Internet is being used and how it should be used when acceptable use policies are being …

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Searching For Community Online: How Virtual Spaces Affect Student Notions Of Community, Emma S. Spiro May 2007

Searching For Community Online: How Virtual Spaces Affect Student Notions Of Community, Emma S. Spiro

Pomona Senior Theses

Social networking sites and virtual spaces have flourished in the past few years. The author explores the impact of such social networking services on the local community at a small liberal arts college. The author investigates modern trends in community theory. Defining community has become more difficult in modern society, where community is no longer easily distinguished by geographical boundaries. From the background of modern community theory the author explores the designation of virtual spaces as “virtual communities.” Literature and research about virtual spaces indicates that they can provide many of the values thought be to inherent to community membership. …

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Evolve Or Dissolve: Will The "Extra, Extra" Save The Newspaper?, Elizabeth Ann Moreno May 2007

Evolve Or Dissolve: Will The "Extra, Extra" Save The Newspaper?, Elizabeth Ann Moreno

Theses & Dissertations

Newspapers have always been the trusted source of information for many years by many. The Internet and other electronic mediums have tested that tendency in recent years. Newspapers have been making changes and evolving to remain a medium of choice in the 21st century. Due to declines in circulation numbers and instabilities in advertising revenue, newspapers have found new ways to continue to be successful. They have encompassed an online presence by the use of online newspapers, fragmented and localized by the use of niche publications and reached the untouched Hispanic and Mexican market by the use of Spanish-language publications. …

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Semantic Web: Technologies And Applications For The Real-World, Amit P. Sheth May 2007

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

Kno.e.sis Publications

No abstract provided.

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Visualization Of Events In A Spatially And Multimedia Enriched Virtual Environment, Leonidas Deligiannidis, Farshad Hakimpour, Amit P. Sheth May 2007

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. …

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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 May 2007

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 …

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Inside Unlv, Diane Russell, Shane Bevell, David Ashley, Mamie Peers, Grace Russell, Lisa Shawcroft May 2007

Inside Unlv, Diane Russell, Shane Bevell, David Ashley, Mamie Peers, Grace Russell, Lisa Shawcroft

Inside UNLV

No abstract provided.

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Communicating With Students Via E-Mail: Creating No Excuse For “There’S Nothing To Do On Campus”, Jessica Rusack May 2007

Communicating With Students Via E-Mail: Creating No Excuse For “There’S Nothing To Do On Campus”, Jessica Rusack

Senior Honors Projects

In the past decade, technology has transformed how society communicates. From the internet to cell phones to iPods and video games, interactive communication has become the norm. At the University of Rhode Island, students adapt quickly to the constantly changing technology. Yet student organizations and the University as a whole have not adapted as quickly to such changes. This has led to an uninformed and uninterested student body when it comes to programming and events on campus. As students instant message on their laptops and text message on their cell phones (simultaneously, of course), organizations, clubs and athletics struggle to …

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Semantic Web Applications In Industry, Government, Health Care And Life Sciences, Amit P. Sheth Apr 2007

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

Kno.e.sis Publications

No abstract provided.

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Digital Radio In Canada: From Dab To Multi-Platform Approaches., Brian O'Neill Apr 2007

Digital Radio In Canada: From Dab To Multi-Platform Approaches., Brian O'Neill

Conference Papers

This paper examines the position of digital radio in Canada. It examines the Canadian experience of digital radio development from its introduction in 1995 to the present and asks whether the approach adopted and the lessons learned provide useful models for application elsewhere. Three main strands form the background to digital radio’s current stage of development: firstly, the introduction and early support for Digital Audio Broadcasting or (DAB) in the mid 1990s; secondly, the response of the radio industry to the internet and new media as complementary to traditional radio broadcasting provision; and thirdly, the more recent experience of the …

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Volume 19 Number 2, Newhouse Network, Spring 2007, Syracuse University S.I. Newhouse School Of Public Communications Apr 2007

Volume 19 Number 2, Newhouse Network, Spring 2007, Syracuse University S.I. Newhouse School Of Public Communications

Newsletters from School of Public Communications - Newhouse Network

Deans Column -- Mirror Awards -- Dean Rubin Retirement -- Turner Diversity Fellowships -- PSA Project -- South Side Newspaper -- Newspaper Design Competition -- New Academic Programs -- First Amendment -- Student snapshots -- Schoonmaker Book -- Comstock Book -- Award winning documentary -- Alumnus Kenneth Sparks -- Alumni at Sirius Radio -- SU in LA -- Class notes -- Alumna Kelly Brown

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