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2008

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Articles 121 - 142 of 142

Full-Text Articles in Science and Technology Studies

Reasoning In Circumscriptive Alco, Stephan Grimm, Pascal Hitzler Jan 2008

Reasoning In Circumscriptive Alco, Stephan Grimm, Pascal Hitzler

Computer Science and Engineering Faculty Publications

Non-monotonic extensions of description logics (DLs) allow for default and local closed-world reasoning and are an acknowledged desired feature for applications, e.g. in the Semantic Web. A recent approach to such an extension is based on McCarthy's circumscription, which rests on the principle of minimising the extension of selected predicates to locally close off dedicated parts of a domain model. While decidability and complexity results have been established in the literature, no practical algorithmisation for circumscriptive DLs has been proposed so far. In this paper, we present a tableaux calculus that can be used as a sound and complete decision …


Expressive Tractable Description Logics Based On Sroiq Rules, Markus Krotzsch, Sebastian Rudolph, Pascal Hitzler Jan 2008

Expressive Tractable Description Logics Based On Sroiq Rules, Markus Krotzsch, Sebastian Rudolph, Pascal Hitzler

Computer Science and Engineering Faculty Publications

We introduce description logic (DL) rules as a new rule-based formalism for knowledge representation in DLs. As a fragment of the Semantic Web Rule Language SWRL, DL rules allow for a tight integration with DL knowledge bases. In contrast to SWRL, however, the combination of DL rules with expressive description logics remains decidable, and we show that the DL SROIQ - the basis for the ongoing standardisation of OWL 2 - can completely internalise DL rules. On the other hand, DL rules capture many expressive features of SROIQ that are not available in simpler DLs yet. While reasoning in SROIQ …


Strategic Importance Of Higher Education And Research In Positioning Gujarat For Global Competitiveness, Amit P. Sheth Jan 2008

Strategic Importance Of Higher Education And Research In Positioning Gujarat For Global Competitiveness, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.


A Coherent Well-Founded Model For Hybrid Mknf Knowledge Bases, Matthias Knorr, Jose Julio Alferes, Pascal Hitzler Jan 2008

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

Computer Science and Engineering Faculty Publications

With the advent of the Semantic Web, the question becomes important how to best combine open-world based ontology languages, like OWL, with closed-world rules paradigms. One of the most mature proposals for this combination is known as Hybrid MKNF knowledge bases [11], which is based on an adaptation of the stable model semantics to knowledge bases consisting of ontology axioms and rules. In this paper, we propose a well-founded semantics for such knowledge bases which promises to provide better efficiency of reasoning, which is compatible both with the OWL-based semantics and the traditional well-founded semantics for logic programs, and which …


Approximate Owl-Reasoning With Screech, Tuvshintur Tserendorj, Sebastian Rudolph, Markus Krotzsch, Pascal Hitzler Jan 2008

Approximate Owl-Reasoning With Screech, Tuvshintur Tserendorj, Sebastian Rudolph, Markus Krotzsch, Pascal Hitzler

Computer Science and Engineering Faculty Publications

Applications of expressive ontology reasoning for the Semantic Web require scalable algorithms for deducing implicit knowledge from explicitly given knowledge bases. Besides the development of more effi- cient such algorithms, awareness is rising that approximate reasoning solutions will be helpful and needed for certain application domains. In this paper, we present a comprehensive overview of the Screech approach to approximate reasoning with OWL ontologies, which is based on the KAON2 algorithms, facilitating a compilation of OWL DL TBoxes into Datalog, which is tractable in terms of data complexity. We present three different instantiations of the Screech approach, and report on …


Users 2.0: Technology At Your Service, Darcy C. Del Bosque, Kimberly Chapman Jan 2008

Users 2.0: Technology At Your Service, Darcy C. Del Bosque, Kimberly Chapman

Library Faculty Research

It is exciting, as practicing librarians, to find a singular voice that stands out as a strong influence on the profession. Anne Grodzins Lipow provided one such voice, inspiring us to evaluate our philosophy of patron service and helping us define our professional values. Lipow’s body of work encompasses many contemporary library issues, involving myriad aspects of customer service. Lipow addressed issues including patron-friendly catalogs and reference service in both traditional face-to-face and newer virtual settings, recognized the importance of training staff as part of continuous improvement in customer service, and emphasized the power of using technology to improve delivery …


Collaborative Ro1 With Ncbo Semantics And Services Enabled Problem Solving Environment For Trypanosoma Cruzi, Amit P. Sheth, Rick Tarleton, Prashant Doshi, Mark Musen, Natasha Noy, Satya S. Sahoo, Daniel B. Weatherly Jan 2008

Collaborative Ro1 With Ncbo Semantics And Services Enabled Problem Solving Environment For Trypanosoma Cruzi, Amit P. Sheth, Rick Tarleton, Prashant Doshi, Mark Musen, Natasha Noy, Satya S. Sahoo, Daniel B. Weatherly

Kno.e.sis Publications

No abstract provided.


Semantic Sensor Web, Amit P. Sheth, Satya S. Sahoo Jan 2008

Semantic Sensor Web, Amit P. Sheth, Satya S. Sahoo

Kno.e.sis Publications

Sensors are distributed across the globe leading to an avalanche of data about our environment. It is possible today to utilize networks of sensors to detect and identify a multitude of observations, from simple phenomena to complex events and situations. The lack of integration and communication between these networks, however, often isolates important data streams and intensifies the existing problem of too much data and not enough knowledge. With a view to addressing this problem, the semantic sensor Web (SSW) proposes that sensor data be annotated with semantic metadata that will both increase interoperability and provide contextual information essential for …


Semantic Provenance For Escience: Managing The Deluge Of Scientific Data, Satya S. Sahoo, Amit P. Sheth, Cory Andrew Henson Jan 2008

Semantic Provenance For Escience: Managing The Deluge Of Scientific Data, Satya S. Sahoo, Amit P. Sheth, Cory Andrew Henson

Kno.e.sis Publications

Provenance information in eScience is metadata that's critical to effectively manage the exponentially increasing volumes of scientific data from industrial-scale experiment protocols. Semantic provenance, based on domain-specific provenance ontologies, lets software applications unambiguously interpret data in the correct context. The semantic provenance framework for eScience data comprises expressive provenance information and domain-specific provenance ontologies and applies this information to data management. The authors' "two degrees of separation" approach advocates the creation of high-quality provenance information using specialized services. In contrast to workflow engines generating provenance information as a core functionality, the specialized provenance services are integrated into a scientific workflow …


Anxiety, Graduate Students, And New Student Orientation Programs: A Quantitative Study, Megan M. Hullinger Jan 2008

Anxiety, Graduate Students, And New Student Orientation Programs: A Quantitative Study, Megan M. Hullinger

Masters Theses

The purpose of this study is to analyze the anxiety levels of incoming graduate students at a Midwest regional state university and determine if an online graduate student orientation program assists in lowering those levels. The researcher used the State-Trait Anxiety Inventory Form Y-1 (STAI) to measure state anxiety levels before and after the orientation program was administered. Each participating student completed a pre- and post-test in conjunction with the online orientation program. Once the information was received, the researcher analyzed the data using a paired t test to determine if the orientation program lowered anxiety levels for incoming graduate …


Development Of Face Recognition System Using Verilook Software Development Kit, Paras Pradhan Jan 2008

Development Of Face Recognition System Using Verilook Software Development Kit, Paras Pradhan

Masters Theses

With built-in libraries and functions, VeriLook Software Development Kit (SDK) provides interfaces for biometric face recognition systems. This research was conducted to gain experience in the development of face recognition system using VeriLook SDK. A prototype named FRECPROJ was developed using the SDK. Major functions were implemented in the prototype, including face enrollment and match using still image files, live streaming with a web camera, or video files.

Through this research, it was realized that a typical face recognition system performs enrollment, verification and identification functions. A single image consisting of a single face is enrolled and the enrolled template …


Learning Expressive Ontologies, Johanna Volker, Peter Haase, Pascal Hitzler Jan 2008

Learning Expressive Ontologies, Johanna Volker, Peter Haase, Pascal Hitzler

Computer Science and Engineering Faculty Publications

No abstract provided.


Hrests: An Html Microformat For Describing Restful Web Services, Jacek Kopecky, Karthik Gomadam, Tomas Vitvar Jan 2008

Hrests: An Html Microformat For Describing Restful Web Services, Jacek Kopecky, Karthik Gomadam, Tomas Vitvar

Kno.e.sis Publications

The Web 2.0 wave brings, among other aspects, the Programmable Web: increasing numbers of Web sites provide machine-oriented APIs and Web services. However, most APIs are only described with text in HTML documents. The lack of machine-readable API descriptions affects the feasibility of tool support for developers who use these services. We propose a microformat called hRESTS (HTML for RESTful Services) for machine-readable descriptions of Web APIs, backed by a simple service model. The hRESTS microformat describes main aspects of services, such as operations, inputs and outputs. We also present two extensions of hRESTS: SA-REST, which captures the facets of …


Joint Extraction Of Compound Entities And Relationships From Biomedical Literature, Cartic Ramakrishnan, Pablo N. Mendes, Rodrigo A.T.S. De Gama, Guilherme C.N. Ferreira, Amit P. Sheth Jan 2008

Joint Extraction Of Compound Entities And Relationships From Biomedical Literature, Cartic Ramakrishnan, Pablo N. Mendes, Rodrigo A.T.S. De Gama, Guilherme C.N. Ferreira, Amit P. Sheth

Kno.e.sis Publications

In this paper we identify some limitations of contemporary information extraction mechanisms in the context of biomedical literature. We present an extraction mechanism that generates structured representations of textual content. Our extraction mechanism achieves this by extracting compound entities, and relationships between them, occuring in text. A detailed evaluation of the relationship and compound entities extracted is presented. Our results show over 62% average precision across 8 relationship types tested with over 82% average precision for compound entity identification1.


Targeted Content Delivery For Social Media Content, Meenakshi Nagarajan, Kamal Baid, Amit P. Sheth, Shaojun Wang Jan 2008

Targeted Content Delivery For Social Media Content, Meenakshi Nagarajan, Kamal Baid, Amit P. Sheth, Shaojun Wang

Kno.e.sis Publications

Spotting contextually relevant keywords is fundamental to effective content suggestions on the Web. In this regard, misspellings, entity variations and off-topic discussions in content from Social Media pose unique challenges. Here, we present an algorithm that assists content delivery systems by identifying contextually relevant keywords and eliminating off-topic keywords. A preliminary user study over data from MySpace and Facebook clearly suggests the usefulness of our work in delivering more targeted content suggestions.


Traveling The Semantic Web Through Space, Theme And Time, Amit P. Sheth, Matthew Perry Jan 2008

Traveling The Semantic Web Through Space, Theme And Time, Amit P. Sheth, Matthew Perry

Kno.e.sis Publications

In this installment of Semantics and Services, we further develop the idea of spatial, temporal, and thematic (STT) processing of semantic Web data and describe the Web infrastructure needed to support it. Starting from Ramesh Jain's vision of the EventWeb as a view of what's possible with a Web that better accommodates all three dimensions of event-related information (thematic, spatial, and temporal), we outline the architecture needed to support it and current research that aims to realize it.


The Need For Speed (And Grace): Issues In A First-Inventor-To-File World, Margo A. Bagley Jan 2008

The Need For Speed (And Grace): Issues In A First-Inventor-To-File World, Margo A. Bagley

Faculty Articles

“One is the loneliest number that you’ll ever do.” This lyric applies to the United States which, since 1998, stands alone among the world’s patent systems in awarding patents to the first person to invent a claimed invention (first to invent, or “FTI”) as opposed to the first inventor to file an application claiming the invention (“FITF”). But its lonely days may soon be over: a provision in pending patent reform legislation will (if passed) move the United States from FTI to FITF and end its solitary stance.

Some argue that the U.S. already has a de facto FITF system, …


A Qualitative Analysis Of The Integration Of Technology At The School District Level In Terms Of The Technology Leadership, Management, And Policy Pyramid: A Theoretical Model Developed By Dr. John Collins, Through The Perceptions Of Technology-Using Teachers, Mark A. Connolly Jan 2008

A Qualitative Analysis Of The Integration Of Technology At The School District Level In Terms Of The Technology Leadership, Management, And Policy Pyramid: A Theoretical Model Developed By Dr. John Collins, Through The Perceptions Of Technology-Using Teachers, Mark A. Connolly

Seton Hall University Dissertations and Theses (ETDs)

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Automated Estimation Of Time Codes For Captioning Digital Media, Daniel P. Harvey Ii Jan 2008

Automated Estimation Of Time Codes For Captioning Digital Media, Daniel P. Harvey Ii

Masters Theses

Captioning provides accessibility to media resources for deaf and hearingimpaired persons and is mandated by federal and state laws such as the Americans with Disabilities Act. However, the process of creating synchronized captions for media is time consuming and labor intensive. Consequently, many content providers still do not incorporate captions into media presentations on the web.

In this research, algorithms were developed to automate part of the captioning process by estimating the timing of captions for web-based audio and video files using plain-text transcripts and their corresponding audio recordings. Recordings used in this study were of professional speakers/readers from American …


Jagannath's Saligram: On Bruno Latour And Literary Critique After Postcoloniality, Amit Ray, Evan Selinger Jan 2008

Jagannath's Saligram: On Bruno Latour And Literary Critique After Postcoloniality, Amit Ray, Evan Selinger

Articles

Bruno Latour has turned to Indian vernacular fiction to illustrate the limits of ideology critique. In examining the method of literary analysis that underlies his appropriation of postcolonial history and culture, we appeal to Edward Said's notion of "traveling theory" in order to discuss critically the aesthetic as well as political stakes of using the technology of the modern novel for the allegorical purposes that Latour has in mind. We argue that Latourian analysis fails to uphold its own rigorous aspirations when it reduces complex literary and cultural representation to universal allegory.


Riding The Technological Rapids With The Millennials, Alison R. Jones Jan 2008

Riding The Technological Rapids With The Millennials, Alison R. Jones

The Christian Librarian

The Millennial Generation is generally agreed to be those born between approximately 1982 and 2002. Neil Howe and Bill Strauss are credited with coining the term Millennials, as well as generally defining the birth years of this generation in their book Millennials rising: the next great generation. A few others disagree and define this generation as starting as early as 1979 or as late as 1984; additionally, there are even those who define the Millennial generation as ending as early as 1994.

There is no easy way to define a generation. In the past, many have used the change in …


Improving Student Training Through Computer-Based Tutorials, Joshua Michael Jan 2008

Improving Student Training Through Computer-Based Tutorials, Joshua Michael

The Christian Librarian

The use of computer-based training for student employees was explored through a recent project. Tutorials were designed and created using a free software program, Wink. The tutorials covered use of electronic resources and circulation programs and were used in training newly hired and continuing student employees. Written exercises requiring use of the information covered in the tutorials were administered subsequently. The advantages of computer-based training for aspects of student library employment were contrasted with its disadvantages. Computer-based training was found to be an effective part of training student employees.