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Publications

2017

Computer Sciences

Articles 1 - 11 of 11

Full-Text Articles in Physical Sciences and Mathematics

Automated Cluster Provisioning And Workflow Management For Parallel Scientific Applications In The Cloud, Brandon Posey, Christopher Gropp, Alexander Herzog, Amy Apon Nov 2017

Automated Cluster Provisioning And Workflow Management For Parallel Scientific Applications In The Cloud, Brandon Posey, Christopher Gropp, Alexander Herzog, Amy Apon

Publications

Many commercial cloud providers and tools are available that researchers could utilize to advance computational science research. However, adoption by the research community has been slow. In this paper we describe the automated Pro-visioning And Workflow (PAW) management tool for parallel scientific applications in the cloud. PAW is a comprehensive resource provisioning and workflow tool that automates the steps of dynamically provisioning a large scale cluster environment in the cloud, executing a set of jobs or a custom workflow and, after the jobs have completed, de-provisioning the cluster environment in a single operation. A key characteristic of PAW is that …

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Maneuverable Applications: Advancing Distributed Computing, William Clay Moody, Amy W. Apon Oct 2017

Maneuverable Applications: Advancing Distributed Computing, William Clay Moody, Amy W. Apon

Publications

Extending the military principle of maneuver into the war-fighting domain of cyberspace, academic and military researchers have produced many theoretical and strategic works, though few have focused on researching the applications and systems that apply this principle. We present a survey of our research in developing new architectures for the enhancement of parallel and distributed applica-tions. Specifically, we discuss our work in applying the military concept of maneuver in the cyberspace domain by creating a set of applications and systems called “ma-neuverable applications.” Our research investigates resource provisioning, application optimization, and cybersecurity enhancement through the modification, relocation, addition or removal …

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Laplacian Distribution And Domination, Domingos M. Cardoso, David P. Jacobs, Vilmar Trevisan Sep 2017

Laplacian Distribution And Domination, Domingos M. Cardoso, David P. Jacobs, Vilmar Trevisan

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No abstract provided.

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Evaluating Student Perceptions And Learning Outcomes: Differences Between Sla-Able And Non-Sla-Able Introductory Programming Courses, Christina M. Frederick, Matthew B. Pierce, Andrew Griggs, Lulu Sun Sep 2017

Evaluating Student Perceptions And Learning Outcomes: Differences Between Sla-Able And Non-Sla-Able Introductory Programming Courses, Christina M. Frederick, Matthew B. Pierce, Andrew Griggs, Lulu Sun

Publications

Engineering, computer science and subsequently knowledge of programming language is an increasingly vital skill in today’s workforce. First year engineering students are introduced to programming in addition to rigorous course loads in their first year. Second Language Acquisition (SLA) has been applied to programming course content delivery and has shown promise as an effective means of better educating new students. Results will be presented from a NSF funded study conducted over the past two years. SLA was applied to an introductory engineering course that teaches basic programming skills in a Blended learning environment (SLA-aBLe). This study examined four semesters worth …

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Moliere: Automatic Biomedical Hypothesis Generation System, Justin Sybrandt, Michael Shtutman, Ilya Safro May 2017

Moliere: Automatic Biomedical Hypothesis Generation System, Justin Sybrandt, Michael Shtutman, Ilya Safro

Publications

Hypothesis generation is becoming a crucial time-saving technique which allows biomedical researchers to quickly discover implicit connections between important concepts. Typically, these systems operate on domain-specific fractions of public medical data. MOLIERE, in contrast, utilizes information from over 24.5 million documents. At the heart of our approach lies a multi-modal and multi-relational network of biomedical objects extracted from several heterogeneous datasets from the National Center for Biotechnology Information (NCBI). These objects include but are not limited to scientific papers, keywords, genes, proteins, diseases, and diagnoses. We model hypotheses using Latent Dirichlet Allocation applied on abstracts found near shortest paths discovered …

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Random Access In Nondelimited Variable-Length Record Collections For Parallel Reading With Hadoop, Jason Anderson, Christopher Gropp, Linh Ngo, Amy W. Apon May 2017

Random Access In Nondelimited Variable-Length Record Collections For Parallel Reading With Hadoop, Jason Anderson, Christopher Gropp, Linh Ngo, Amy W. Apon

Publications

The industry standard Packet CAPture (PCAP) format for storing network packet traces is normally only readable in serial due to its lack of delimiters, indexing, or blocking. This presents a challenge for parallel analysis of large networks, where packet traces can be many gigabytes in size. In this work we present RAPCAP, a novel method for random access into variable-length record collections like PCAP by identifying a record boundary within a small number of bytes of the access point. Unlike related heuristic methods that can limit scalability with a nonzero probability of error, the new method offers a correctness guarantee …

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Vizspace: Interaction In The Positive Parallax Screen Plane, Oyewole Oyekoya, Emily Sassard, Tiana Johnson Apr 2017

Vizspace: Interaction In The Positive Parallax Screen Plane, Oyewole Oyekoya, Emily Sassard, Tiana Johnson

Publications

The VizSpace is a physically situated interactive system that combines touch and hand interactions behind the screen to create the effect that users are reaching inside and interacting in a 3D virtual workspace. It extends the conventional touch table interface with hand tracking and 3D visualization to enable interaction in the positive parallax plane, where the binocular focus falls behind the screen so as not to occlude projected images. This paper covers the system design, human factors and ergonomics considerations for an interactive and immersive gesture-based visualization system. Results are presented from a preliminary user study that validates the usability …

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Trustworthiness Requirements For Manufacturing Cyber-Physical Systems, Radu F. Babiceanu, Remzi Seker Jan 2017

Trustworthiness Requirements For Manufacturing Cyber-Physical Systems, Radu F. Babiceanu, Remzi Seker

Publications

Distributed manufacturing operations include cyber-physical systems vulnerable to cyber-attacks. Long time not considered a priority, cybersecurity jumped to the forefront of manufacturing concerns due to the need to network together legacy, newer equipment, and entire operation centers. This paper proposes trustworthiness solutions for integrated manufacturing physical-cyber worlds, where trustworthiness is defined to complement system dependability requirements with cybersecurity requirements, such that the resulting manufacturing cyber-physical system delivers services that can justifiably be trusted. Acknowledging the inevitability of cyber-attacks, the paper models the cybersecurity component using the resilient systems framework, where system resilience is viewed as preservation of a required state …

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Success Stories In Knowledge Management Systems, Leila Halawi, Richard Mccarthy, Janine Aronson Jan 2017

Success Stories In Knowledge Management Systems, Leila Halawi, Richard Mccarthy, Janine Aronson

Publications

Historically, information systems have focused on capturing, storing, managing, and reporting explicit knowledge. Organizations today recognize the need to integrate both explicit and tacit knowledge in formal information systems. Knowledge management continues to be a critical strategy for an organization to achieve a sustainable competitive advantage, and consequently succeed in today's knowledge-based economy. Knowledge management systems (KMS) are a class of information systems that manage, store and distribute knowledge. Knowledge management systems have proliferated in practice. In turn, theoretical research on knowledge management and knowledge management systems has proliferated. Knowledge management systems have emerged as powerful sources of competitive advantage. …

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Exploring Myths In Digital Forensics: Separating Science From Ritual, Gary C. Kessler, Gregory H. Carlton Jan 2017

Exploring Myths In Digital Forensics: Separating Science From Ritual, Gary C. Kessler, Gregory H. Carlton

Publications

Digital forensic methodology deviates significantly relative to the methods of other forensic sciences for numerous practical reasons, and it has been largely influenced by factors derived from the inception and evolution of this relatively new and rapidly changing field. Digital forensics methodology was developed more by practitioners in its early days rather than by computer scientists. This led to accepted best practices in the field that may not represent the best or, at least, tested, science. This paper explores some of these differences in the practice and evolution between digital and other forensic sciences, and recommends scientific approaches to apply …

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Using Journals To Assess Non-Stem Student Learning In Stem Courses: A Case Study In Cybersecurity Education, Gary Kessler, Glenn S. Dardick, Douglas L. Holton Jan 2017

Using Journals To Assess Non-Stem Student Learning In Stem Courses: A Case Study In Cybersecurity Education, Gary Kessler, Glenn S. Dardick, Douglas L. Holton

Publications

Embry-Riddle Aeronautical University offers a minor course of study in cybersecurity as an option in our undergraduate Homeland Security program. Since the students are, by and large, social scientists, the focus of the program is to build hyper-awareness of how cybersecurity integrates within their professional aspirations rather than to provide cybersecurity career-level proficiency. Assessing student learning of the technical aspects cannot be performed using traditional tests, as they would not properly measure what the students are learning in a practical sense. Instead, we employ journals and self-reflection to ask the students to express and demonstrate their learning. Although somewhat harder …

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