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Articles 1 - 30 of 171
Full-Text Articles in Physical Sciences and Mathematics
Laser Induced Ignition With Resonant Multiphoton Absorption In Oxygen, Steven F. Adams
Laser Induced Ignition With Resonant Multiphoton Absorption In Oxygen, Steven F. Adams
Physics Seminars
A novel resonant laser-induced breakdown scheme has been demonstrated to provide precision spatial guidance of spark formation within an air flow and has been further demonstrated successfully in resonant laser-induced ignition of a moderate-speed flow of an air-propane mixture. This scheme could potentially provide ignition within a combustion system with a laser trigger leading to breakdown of an air-fuel flow within a high-voltage gap using a compact low power laser source. The laser scheme involves resonant enhanced multiphoton ionization (REMPI) in molecular oxygen and subsequent laser field-enhanced electron avalanche to generate a pre-ionized micro-plasma path between high voltage electrodes and …
A Bioinformatics Method For Identifying Rna Structures Within Human Cells, Stephen Donald Huff
A Bioinformatics Method For Identifying Rna Structures Within Human Cells, Stephen Donald Huff
Physics Seminars
Single-stranded, negative-sense RNA (ssRNA-) serves many varied roles within the eukaryotic cell. Currently known examples include snRNA (short nuclear), snoRNA (short nucleolar), tRNA (transfer), siRNA (silencing), miRNA (micro), and others [1,2]. Unknown examples are currently being studied, also, including the long, non-coding ssRNA- found in the nuclear paraspeckle, a component of unknown function located within the eukaryotic nucleus and comprised of ssRNA- sequences transcribed from so-called ‘junk’ DNA [3,4]. While a growing list of confirmed physiological functions have been attributed to ssRNA-, additional roles likely exist and have yet to be discovered. Further, since ssRNA- is known to bind to …
Automatic Domain Identification For Linked Open Data, Sarasi Lalithsena, Pascal Hitzler, Amit P. Sheth, Prateek Jain
Automatic Domain Identification For Linked Open Data, Sarasi Lalithsena, Pascal Hitzler, Amit P. Sheth, Prateek Jain
Kno.e.sis Publications
Linked Open Data (LOD) has emerged as one of the largest collections of interlinked structured datasets on the Web. Although the adoption of such datasets for applications is increasing, identifying relevant datasets for a specific task or topic is still challenging. As an initial step to make such identification easier, we provide an approach to automatically identify the topic domains of given datasets. Our method utilizes existing knowledge sources, more specifically Freebase, and we present an evaluation which validates the topic domains we can identify with our system. Furthermore, we evaluate the effectiveness of identified topic domains for the purpose …
Semantics-Empowered Big Data Processing With Applications, Krishnaprasad Thirunarayan, Amit P. Sheth
Semantics-Empowered Big Data Processing With Applications, Krishnaprasad Thirunarayan, Amit P. Sheth
Kno.e.sis Publications
We discuss the nature of Big Data and address the role of semantics in analyzing and processing Big Data that arises in the context of Physical-Cyber-Social Systems. We organize our research around the Five Vs of Big Data, where four of the Vs are harnessed to produce the fifth V - value. To handle the challenge of Volume, we advocate semantic perception that can convert low-level observational data to higher-level abstractions more suitable for decision-making. To handle the challenge of Variety, we resort to the use of semantic models and annotations of data so that much of the intelligent processing …
Thoughts On The Complex Relation Between Linked Data, Semantic Annotations, And Ontologies, Krzysztof Janowicz, Pascal Hitzler
Thoughts On The Complex Relation Between Linked Data, Semantic Annotations, And Ontologies, Krzysztof Janowicz, Pascal Hitzler
Computer Science and Engineering Faculty Publications
The relation between data, annotations, and schemata seems straightforward at first: Data are annotated with additional meta information according to some schemata in order to expose additional non-intrinsic characteristics relevant to the meaningful interpretation of said data. However, on closer examination, things are not as simple. Focusing on geo-information retrieval, we will try to disentangle the aforementioned relations. We will report from our own experience and from observations gathered by editing papers about ontologies and Linked Data for the Semantic Web journal.
Linked Scientometrics: Designing Interactive Scientometrics With Linked Data And Semantic Web Reasoning, Grant Mckenzie, Krzysztof Janowicz, Yingjie Hu, Kunal Sengupta, Pascal Hitzler
Linked Scientometrics: Designing Interactive Scientometrics With Linked Data And Semantic Web Reasoning, Grant Mckenzie, Krzysztof Janowicz, Yingjie Hu, Kunal Sengupta, Pascal Hitzler
Computer Science and Engineering Faculty Publications
In this demo paper we introduce a Linked Data-driven, Semantically-enabled Journal Portal (SEJP) that offers a variety of interactive scientometrics modules. SEJP allows editors, reviewers, authors, and readers to explore and analyze (meta)data published by a journal. Besides Linked Data created from the journal's internal data, SEJP also links out to other sources and includes them to develop more powerful modules. These modules range from simple descriptive statistics, over the spatial analysis of visitors and authors, to topic trending modules. While SEJP will be available for multiple journals, this paper shows its deployment to the Semantic Web journal by IOS …
Editing R2rml Mappings Made Easy, Kunal Sengupta, Peter Haase, Michael Schmidt, Pascal Hitzler
Editing R2rml Mappings Made Easy, Kunal Sengupta, Peter Haase, Michael Schmidt, Pascal Hitzler
Computer Science and Engineering Faculty Publications
The new W3C standard R2RML3 defines a language for ex- pressing mappings from relational databases to RDF, allowing applications built on top of the W3C Semantic Technology stack to seamlessly integrate relational data. A major obstacle in using R2RML, though, is the creation and maintenance of mappings. In this demo, we present a novel R2RML mapping editor which provides a user interface to create and edit mappings interactively even for non-experts.
D-Sparq: Distributed, Scalable And Efficient Rdf Query Engine, Raghava Mutharaju, Sherif Sakr, Alessandra Sala, Pascal Hitzler
D-Sparq: Distributed, Scalable And Efficient Rdf Query Engine, Raghava Mutharaju, Sherif Sakr, Alessandra Sala, Pascal Hitzler
Computer Science and Engineering Faculty Publications
We present D-SPARQ, a distributed RDF query engine that combines the MapReduce processing framework with a NoSQL distributed data store, MongoDB. The performance of processing SPARQL queries mainly depends on the efficiency of handling the join operations between the RDF triple patterns. Our system features two unique characteristics that enable efficiently tackling this challenge: 1) Identifying specific patterns of the input queries that enable improving the performance by running different parts of the query in a parallel mode. 2) Using the triple selectivity information for reordering the individual triples of the input query within the identified query patterns. The preliminary …
Distel: A Distributed El+ Ontology Classifier, Raghava Mutharaju, Pascal Hitzler, Prabhaker Mateti
Distel: A Distributed El+ Ontology Classifier, Raghava Mutharaju, Pascal Hitzler, Prabhaker Mateti
Computer Science and Engineering Faculty Publications
OWL 2 EL ontologies are used to model and reason over data from diverse domains such as biomedicine, geography and road traffic. Data in these domains is increasing at a rate quicker than the increase in main memory and computation power of a single machine. Recent efforts in OWL reasoning algorithms lead to the decrease in classification time from several hours to a few seconds even for large ontologies like SNOMED CT. This is especially true for ontologies in the description logic EL+ (a fragment of the OWL 2 EL profile). Reasoners such as Pellet, Hermit, ELK etc. make …
Stringsauto And Mapsss Results For Oaei 2013, Michelle Cheatham, Pascal Hitzler
Stringsauto And Mapsss Results For Oaei 2013, Michelle Cheatham, Pascal Hitzler
Computer Science and Engineering Faculty Publications
StringsAuto and MapSSS are two closely related ontology alignment systems. The StringsAuto matcher seeks to explore the limits of a syntactic-only approach to alignment. The MapSSS system then expands on this work by embedding the syntactic matching of StringsAuto within a more complete alignment system that also makes use of semantic and structural information. In this paper we describe the basic operation of the two systems and discuss their performance in the OAEI 2013 evaluation.
City Notifications As A Data Source For Traffic Management, Pramod Anantharam, Biplav Srivastava
City Notifications As A Data Source For Traffic Management, Pramod Anantharam, Biplav Srivastava
Kno.e.sis Publications
A common problem for cities of developing countries like India in managing traffic is the lack of basic automated instrumentation to track road conditions or vehicle locations. Still, to help their citizens make informed travel decisions based on changing city dynamics; many cities have an authorized, city-initiated, notification service in place to alert subscribing commuters about road conditions. Here, alternative means may be used to create informal textual notifications e.g., inputs from field personnel, citizen updates, and pre-authorized events from city calendar. In this paper, we show that collections of such notifications, when processed with information extraction techniques, can turn …
Sapling Learning's Online Homework System For Science Courses, Jon Monahan
Sapling Learning's Online Homework System For Science Courses, Jon Monahan
Physics Seminars
Created and supported by educators, Sapling Learning’s online homework drives student success and saves educators time.
Passionately Crafted Content: Sapling Learning authors are experienced educators. They are passionate about creating problem sets, targeted instructional feedback, and solutions which both challenge and guide students. Student errors are met with more than just hints. Authors write the same quality, detailed feedback that they would deliver to students in person. Multi-step tutorials and engaging, intuitive question types lead students through a dynamic study process with variation that strengthens comprehensive understanding.
Targeted Instructional Feedback: Every question and tutorial from Sapling Learning is embedded with …
A Linked-Data-Driven And Semantically-Enabled Journal Portal For Scientometrics, Yingjie Hu, Krzysztof Janowicz, Grant Mckenzie, Kunal Sengupta
A Linked-Data-Driven And Semantically-Enabled Journal Portal For Scientometrics, Yingjie Hu, Krzysztof Janowicz, Grant Mckenzie, Kunal Sengupta
Computer Science and Engineering Faculty Publications
The Semantic Web journal by IOS Press follows a unique open and transparent process during which each submitted manuscript is available online together with the full history of its successive decision statuses, assigned editors, solicited and voluntary reviewers, their full text reviews, and in many cases also the authors’ response letters. Combined with a highly-customized, Drupal-based journal management system, this provides the journal with semantically rich manuscript time lines and networked data about authors, reviewers, and editors. These data are now exposed using a SPARQL endpoint, an extended Bibo ontology, and a modular Linked Data portal that provides interactive scientometrics …
College Of Science And Mathematics Newsletter, Fall 2013, College Of Science And Mathematics, Wright State University
College Of Science And Mathematics Newsletter, Fall 2013, College Of Science And Mathematics, Wright State University
College of Science and Mathematics Newsletters
This 8 page newsletter discusses various happenings within the College of Science and Mathematics. It begins with a letter from the dean, and continues on with news, events, alumni news, and other community news.
String Similarity Metrics For Ontology Alignment, Michelle Cheatham, Pascal Hitzler
String Similarity Metrics For Ontology Alignment, Michelle Cheatham, Pascal Hitzler
Computer Science and Engineering Faculty Publications
Ontology alignment is an important part of enabling the semantic web to reach its full potential. The vast majority of ontology alignment systems use one or more string similarity metrics, but often the choice of which metrics to use is not given much attention. In this work we evaluate a wide range of such metrics, along with string pre-processing strategies such as removing stop words and considering synonyms, on different types of ontologies. We also present a set of guidelines on when to use which metric. We furthermore show that if optimal string similarity metrics are chosen, those alone can …
Ceg 4350/6350-01: Os Internals And Design, Soon M. Chung
Ceg 4350/6350-01: Os Internals And Design, Soon M. Chung
Computer Science & Engineering Syllabi
Introduction to basic concepts of operating systems, including process and thread management, CPU scheduling, process synchronization, memory management, file systems.
Ceg 4330/6300-02: Microprocessor-Based Embedded Systems, Jack Jean
Ceg 4330/6300-02: Microprocessor-Based Embedded Systems, Jack Jean
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 2350: Os Concepts And Usage, Prabhaker Mateti
Ceg 2350: Os Concepts And Usage, Prabhaker Mateti
Computer Science & Engineering Syllabi
Provides introduction to Linux and Windows operating systems and system administration. Covers files and directories, ownership and sharing, programs and processes, system calls, libraries, dynamic linking, command line shells, scripting, regular expressions and secure network protocols.
Ceg 7350-01: Computer Architecture, Soon M. Chung
Ceg 7350-01: Computer Architecture, Soon M. Chung
Computer Science & Engineering Syllabi
Review of sequential computer architecture and study of parallel computers.
Topics include memory hierarchy, reduced instruction set computer, pipeline
processing, multiprocessing, various parallel computers, and interconnection networks.
Ceg 2170-01: Introduction To C Programming For Engineers, Shaojun Wang
Ceg 2170-01: Introduction To C Programming For Engineers, Shaojun Wang
Computer Science & Engineering Syllabi
Basic engineering problem solving using the C programming language. Topics include loops, selection, input/output, files, functions, arrays, complex variables, pointers, structures, and dynamic memory. Students will learn how to approach solving problems in engineering and science; how to develop algorithms, using advanced techniques such as recursion, searching, s01ting and linked lists, to solve those problems; and how to implement those algorithms in the C language.
Ceg 3110/5110-01: Introduction To Software Testing, John A. Reisner
Ceg 3110/5110-01: Introduction To Software Testing, John A. Reisner
Computer Science & Engineering Syllabi
This course covers software testing strategies, along with established best practices, to teach students how to test software in a complete and systematic (vice ad-hoc) manner. Particular attention is paid to planning, writing, and executing software tests, along with associated documentation, (i.e., a software test plan), which includes documented results. Various projects are assigned, designed to illustrate various challenges associated with software testing, and to reinforce the strategies and techniques used to overcome these challenges.
Ceg 2400-01: Introduction To Pc Networks, Jerry Hensley
Ceg 2400-01: Introduction To Pc Networks, Jerry Hensley
Computer Science & Engineering Syllabi
Introduction to networking technologies including infrastructure and architectures, standards, protocols and directory services, administration, security and management. Integrated lecture and lab.
Ceg 3320-01: Digital System Design, Travis E. Doom
Ceg 3320-01: Digital System Design, Travis E. Doom
Computer Science & Engineering Syllabi
Basics of Digital Computer Hardware and Design. Topics include switching algebra and switching functions, logic design of combinational and sequential circuits, storage elements, register-level design, and instrumentation. 3 hours lecture, 1 credit hour lab.
Ceg 4110/6110-01: Introduction To Software Computer Engineering, Junjie Zhang
Ceg 4110/6110-01: Introduction To Software Computer Engineering, Junjie Zhang
Computer Science & Engineering Syllabi
This course will focus on discussing the principles and techniques used in software engineering. It will cover the essential topics including UML, Requirements Elicitation, Analysis, System Design, Object Design, and Testing. In addition, we will discuss common security practices in the software engineering framework. This class is targeted at both undergraduate and graduate students who have adequate background in computer science, computer engineering, or related areas. Students who successfully complete this course will be capable of effectively participating in software engineering activities.
Ceg 4420/6420-01: Host Computer Security, Prabhaker Mateti
Ceg 4420/6420-01: Host Computer Security, Prabhaker Mateti
Computer Science & Engineering Syllabi
This course introduces security hardening of a single system, and how to protect it when connected to a network. It explains how malware can compromise security and privacy from the moment a machine is powered on until shut down. Topics include Privilege Escalation, Buffer Overruns, Network Packet Mangling, Session Hijacking, Firewalls, and ethics. Lab work uses tools such as nmap and Kali (BackTrack) Linux. Prerequisites: CEG4350
Ceg 4400/6400-01: Computer Networks And Security, Bin Wang
Ceg 4400/6400-01: Computer Networks And Security, Bin Wang
Computer Science & Engineering Syllabi
This course provides an introduction to basic concepts of communication networks and network security, different types of networks, protocols over different layers, applications, and security issues, through lectures, labs, homework, and reading on relevant materials. You will
•Understand networking principles, protocols, and technologies.
•Understand design and performance issues involved in providing network
services.
•Acquire background for supporting e-commerce, e-government, and e-education.
•Gain hands-on experiences through implementation of simple network
protocols.
•Preparation for research or taking advanced courses in computer networks and
security.
Ceg 4980/4981-01: Team Projects I And Ii, John C. Gallagher
Ceg 4980/4981-01: Team Projects I And Ii, John C. Gallagher
Computer Science & Engineering Syllabi
CEO 4980/4981 (Team Projects I and 11) is a summative computer science and engineering design project course that builds upon previous computer science, computer engineering, science, mathematics and communications course work. CS 4980/4981 projects arc two semesters in length and must be completed in groups of at least three students. Projects are selected under the guidance of the course instructor and/or other faculty advisors and are tailored to student interest and the specific degree program (BSCS or BSCE) of each student. Students are evaluated both on their individual contributions as recorded in a graded engineering journals and on the quality …
Ceg 4500/6500-01: Computer Graphics, Thomas Wischgoll
Ceg 4500/6500-01: Computer Graphics, Thomas Wischgoll
Computer Science & Engineering Syllabi
By the end of this quarter, you will have learnt techniques for constructing 2-D and 3-D objects as well as manipulating and rendering the objects using OpenGL
The outline of the course is as follows:
• Introduction
• Geometric primitives
• Attributes of geometric primitives
• Antialiasing techniques
• Homogeneous coordinate system
• 2-D and 3-D viewing transformations
• Structures and hierarchical modeling
• Input devices and interactive techniques
• Visible surface detection methods
• Three-Dimensional Object Representations (chapter 8)
• Visible-Surface Detection (chapter 9)
• Illumination Models and Surface-Rendering Methods (chapter 10)
• Interactive Input Methods and Graphics User …
Ceg 7470-01: Advanced Wireless Networks, Bin Wang
Ceg 7470-01: Advanced Wireless Networks, Bin Wang
Computer Science & Engineering Syllabi
This course covers advanced topics in wireless networking and mobile computing, including supporting wireless technologies, various types of wireless networks, mesh networks, mobile protocols, mobile security, emerging wireless and mobile technologies, and so on.
Ceg 7200-01: Information Security, Meilin Liu
Ceg 7200-01: Information Security, Meilin Liu
Computer Science & Engineering Syllabi
This course gives a comprehensive study of security vulnerabilities· in information systems and the basic techniques for developing secure applications and practicing safe computing. Topics include: Conventional encryption; Data Encryption Standard; Advanced Encryption Standard; Hashing functions and data integrity; Basic Number Theory; Public-key encryption (RSA); Digital signature; Security standards and applications; Access Control; Management and analysis of security. After taking this course, students will have the knowledge of several well-known security standards and their applications; and the students should be able to increase system security and develop secure applications.