Open Access. Powered by Scholars. Published by Universities.®
![Digital Commons Network](http://assets.bepress.com/20200205/img/dcn/DCsunburst.png)
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Scientific computing (10)
- Software engineering (8)
- Atomic requirements (6)
- Computer science (6)
- Singular requirements (6)
-
- Bioinformatics (5)
- Computer science education (5)
- Functional programming (5)
- Open source (5)
- Cloud (4)
- Requirements (4)
- Broadening participation (3)
- Digital humanities (3)
- Free software (3)
- HIV (3)
- Quality attributes (3)
- Research (3)
- Services (3)
- Software process (3)
- Sustainability (3)
- System development (3)
- Technology (3)
- Web (3)
- Academics (2)
- Association rule mining (2)
- CSE (Computational Science and Engineering) (2)
- Cloud computing (2)
- Collaboration (2)
- Colonoscopy (2)
- Computational science (2)
- Publication
-
- Konstantin Läufer (19)
- Johnny Wong (16)
- George K. Thiruvathukal (15)
- Yuliya Lierler (8)
- William L Honig (7)
-
- Ashish Amresh (4)
- David B. Dennis (4)
- Catherine Putonti (3)
- Gabriel A. Moreno (3)
- Morris Chang (3)
- Nicholas Hayward (3)
- Sugam Sharma (3)
- Amy J Connolly (2)
- Badri Adhikari (2)
- Keith Reid MacArthur (2)
- Wojciech Budzianowski (2)
- Arun Kulkarni (1)
- Ben G. Fitzpatrick (1)
- Donald W. Good (1)
- Douglas Jacobson (1)
- Dr. David M Cook (1)
- Dr. Mitchell Parry (1)
- Gary C. Kessler (1)
- Hyunyi Jung (1)
- Jacy Ippolito (1)
- Jody C Fagan (1)
- John K. VanDyk (1)
- Kate Perkins (1)
- Kathryn Wissel, MBA, MI (1)
- L. Carl Fiocchi (1)
Articles 1 - 30 of 125
Full-Text Articles in Physical Sciences and Mathematics
Learning About Modeling In Teacher Preparation Programs, Hyunyi Jung, Eryn Stehr, Jia He, Sharon L. Senk
Learning About Modeling In Teacher Preparation Programs, Hyunyi Jung, Eryn Stehr, Jia He, Sharon L. Senk
Hyunyi Jung
This study explores opportunities that secondary mathematics teacher preparation programs provide to learn about modeling in algebra. Forty-eight course instructors and ten focus groups at five universities were interviewed to answer questions related to modeling. With the analysis of the interview transcripts and related course materials, we found few opportunities for PSTs to engage with the full modeling cycle. Examples of opportunities to learn about algebraic modeling and the participants’ perspectives on the opportunities can contribute to the study of modeling and algebra in teacher education.
Computer Science And Cultural History: A Dialogue, David B. Dennis, George K. Thiruvathukal
Computer Science And Cultural History: A Dialogue, David B. Dennis, George K. Thiruvathukal
David B. Dennis
No abstract provided.
Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward
Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward
Nicholas Hayward
Software metrics are a critical tool which provide continuous insight to products and processes and help build reliable software in mission critical environments. Using software metrics we can perform calculations that help assess the effectiveness of the underlying software or process. The two types of metrics relevant to our work is complexity metrics and in-process metrics. Complexity metrics tend to focus on intrinsic code properties like code complexity. In-process metrics focus on a higher-level view of software quality, measuring information that can provide insight into the underlying software development process.
Our aim is to develop and evaluate a metrics dashboard …
Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Shilpika Shilpika, George K. Thiruvathukal, Nicholas Hayward, Konstantin Läufer
Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Shilpika Shilpika, George K. Thiruvathukal, Nicholas Hayward, Konstantin Läufer
Nicholas Hayward
No abstract provided.
Towards Sustainable Digital Humanities Software, George K. Thiruvathukal, Shilpika Shilpika, Nicholas J. Hayward, Saulo Aguiar, Konstantin Läufer
Towards Sustainable Digital Humanities Software, George K. Thiruvathukal, Shilpika Shilpika, Nicholas J. Hayward, Saulo Aguiar, Konstantin Läufer
Nicholas Hayward
Our work in software quality for digital humanities was borne of an effort to address sustainable practices in scientific software development, where the speaker (Thiruvathukal) co-authored a position paper on the case for software engineering in scientific software development as part of an all-encompassing strategy to create more sustainable scientific software (an example of a well-known scientific software package is LINPACK). In this position paper, we addressed how “progress in scientific research is dependent on the quality and accessibility of software at all levels". This progress depends on embracing the best traditional--and emergent--practices in software engineering, especially agile practices that …
Prediction Of Solid Oxide Fuel Cell Performance Using Artificial Neural Network, M. A. Rafe Biswas, Kamwana N. Mwara
Prediction Of Solid Oxide Fuel Cell Performance Using Artificial Neural Network, M. A. Rafe Biswas, Kamwana N. Mwara
M. A. Rafe Biswas
Metrics, Software Engineering, Small Systems – The Future Of Systems Development, William L. Honig
Metrics, Software Engineering, Small Systems – The Future Of Systems Development, William L. Honig
William L Honig
In this talk I will introduce the importance of metrics, or measures, and the role they play in the development of high quality computer systems. I will review some key mega trends in computer science over the last three decades and then explain why I believe the trend to small networked systems, along with metrics and software engineering will define the future of high technology computer based systems. I first learned about metrics at the Bell System where everything was measured. Metrics can be understood easily if you think of them as measures, for example of calories or salt in …
Lack Of Attention To Singular (Or Atomic) Requirements Despite Benefits For Quality, Metrics And Management, William L. Honig, Shingo Takada, Natsuko Noda
Lack Of Attention To Singular (Or Atomic) Requirements Despite Benefits For Quality, Metrics And Management, William L. Honig, Shingo Takada, Natsuko Noda
William L Honig
There are seemingly many advantages to being able to identify, document, test, and trace single or “atomic” requirements. Why then has there been little attention to the topic and no widely used definition or process on how to define atomic requirements? Definitions of requirements and standards focus on user needs, system capabilities or functions; some definitions include making individual requirements singular or without the use of conjunctions. In a few cases there has been a description of atomic system events or requirements. This work is surveyed here although there is no well accepted and used best practice for generating atomic …
Introduction To Atomic Requirements, William L. Honig
Introduction To Atomic Requirements, William L. Honig
William L Honig
An introduction to requirements and the importance of making single atomic requirements statements. Atomic requirements have advantages and improve the requirements process, support requirement verification and validation, enable traceability, support testability of systems, and provide management advantages. Why has there been so little emphasis on atomic requirements?
Requirements Quick Notes, William L. Honig, Shingo Takada
Requirements Quick Notes, William L. Honig, Shingo Takada
William L Honig
A short introduction to requirements and their role in system development. Includes industry definition of requirements, overview of basic requirements process including numbering of requirements, ties to testing, and traceability. An introduction to requirements quality attributes (correct, unambiguous, etc.) Includes references to requirements process, numbering, and quality papers.
An Example Of Atomic Requirements - Login Screen, William L. Honig
An Example Of Atomic Requirements - Login Screen, William L. Honig
William L Honig
A simple example of what an atomic or individual or singular requirement statement should be. Using the example of the familiar login screen, shows the evolution from a low quality initial attempt at requirements to a complete atomic requirement statement. Introduces the idea of a system glossary to support the atomic requirement.
Requirements Metrics - Definitions Of A Working List Of Possible Metrics For Requirements Quality, William L. Honig
Requirements Metrics - Definitions Of A Working List Of Possible Metrics For Requirements Quality, William L. Honig
William L Honig
A work in progress to define a metrics set for requirements. Metrics are defined that apply to either the entire requirements set (requirements document as a whole) or individual atomic (or singular, individual) requirements statements. Requirements are identified with standard names and a identification scheme and include both subjective and objective measures. An example metric for the full set of requirements: Rd2 - Requirements Consistency, Is the set of atomic requirements internally consistent, with no contradictions, no duplication between individual requirements? An example of a metric for a single requirement: Ra4 - Requirement Verifiability, How adequately can this requirement be …
Atomic Requirements Quick Notes, William L. Honig, Shingo Takada
Atomic Requirements Quick Notes, William L. Honig, Shingo Takada
William L Honig
Working paper on atomic requirements for systems development and the importance of singular, cohesive, individual requirements statements. Covers possible definitions of atomic requirements, and their characteristics. Atomic requirements improve many parts of the development process from requirements to testing and contracting.
On The Interaction Of Object-Oriented Design Patterns And Programming Languages, Gerald Baumgartner, Konstantin Laufer, Vernon J. Rego
On The Interaction Of Object-Oriented Design Patterns And Programming Languages, Gerald Baumgartner, Konstantin Laufer, Vernon J. Rego
Konstantin Läufer
No abstract provided.
Experiences With Scala Across The College-Level Curriculum, Konstantin Läufer, George K. Thiruvathukal, Mark C. Lewis
Experiences With Scala Across The College-Level Curriculum, Konstantin Läufer, George K. Thiruvathukal, Mark C. Lewis
Konstantin Läufer
Various hybrid-functional languages, designed to balance compile-time error detection, conciseness, and performance, have emerged. Scala, e.g., is interoperable with Java and has become an early leader in adoption, especially in the start-up and open-source spaces. As educators, we have recognized Scala’s value as a teaching language across the CS curriculum. In CS1, the read-eval-print loop and simple, uniform syntax aid programming in the small. In CS2, higher-order methods allow concise, efficient manipulation of collections. In a programming languages course, advanced constructs facilitate the separation of concerns, program representation and interpretation, and concurrent programming. In advanced applied courses, language mechanisms and …
Moving Academic Department Functions To Social Networks And Clouds: Initial Experiences, George K. Thiruvathukal, Konstantin Läufer, David Dennis
Moving Academic Department Functions To Social Networks And Clouds: Initial Experiences, George K. Thiruvathukal, Konstantin Läufer, David Dennis
Konstantin Läufer
The ability to move locally hosted services to cloud-based technologies is a key element in the scientific programming toolbox.
Spring11: Pdc In Cs1/2 And A Mobile/Cloud Intermediate Mobile/Cloud Intermediate Software Design Course, Joseph P. Kaylor, Konstantin Läufer, Chandra N. Sekharan, George K. Thiruvathukal
Spring11: Pdc In Cs1/2 And A Mobile/Cloud Intermediate Mobile/Cloud Intermediate Software Design Course, Joseph P. Kaylor, Konstantin Läufer, Chandra N. Sekharan, George K. Thiruvathukal
Konstantin Läufer
Recent changes in the environment of Loyola University Chicago’s Department of Computer Science include a better differentiation of our four undergraduate majors, growing interest in computing among science majors, and an increased demand for graduates with mobile and cloud skills. In our continued effort to incorporate parallel and distributed computing topics into the undergraduate curriculum, we are focusing on these three existing courses: CS1: In response to a request from the physics department, we started to offer a CS1 section aimed at majors in physics and other hard sciences this spring semester. This section includes some material on numerical methods …
Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward
Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward
Konstantin Läufer
Software metrics are a critical tool which provide continuous insight to products and processes and help build reliable software in mission critical environments. Using software metrics we can perform calculations that help assess the effectiveness of the underlying software or process. The two types of metrics relevant to our work is complexity metrics and in-process metrics. Complexity metrics tend to focus on intrinsic code properties like code complexity. In-process metrics focus on a higher-level view of software quality, measuring information that can provide insight into the underlying software development process.
Our aim is to develop and evaluate a metrics dashboard …
Towards Sustainable Digital Humanities Software, George K. Thiruvathukal, Shilpika Shilpika, Nicholas J. Hayward, Saulo Aguiar, Konstantin Läufer
Towards Sustainable Digital Humanities Software, George K. Thiruvathukal, Shilpika Shilpika, Nicholas J. Hayward, Saulo Aguiar, Konstantin Läufer
Konstantin Läufer
Our work in software quality for digital humanities was borne of an effort to address sustainable practices in scientific software development, where the speaker (Thiruvathukal) co-authored a position paper on the case for software engineering in scientific software development as part of an all-encompassing strategy to create more sustainable scientific software (an example of a well-known scientific software package is LINPACK). In this position paper, we addressed how “progress in scientific research is dependent on the quality and accessibility of software at all levels". This progress depends on embracing the best traditional--and emergent--practices in software engineering, especially agile practices that …
Building Capable, Energy-Efficient, Flexible Visualization And Sensing Clusters From Commodity Tablets, Thomas Delgado Dias, Xian Yan, Konstantin Läufer, George K. Thiruvathukal
Building Capable, Energy-Efficient, Flexible Visualization And Sensing Clusters From Commodity Tablets, Thomas Delgado Dias, Xian Yan, Konstantin Läufer, George K. Thiruvathukal
Konstantin Läufer
We explore the application of clusters of commodity tablet devices to problems spanning a “trilogy” of concerns: visualization, sensing, and computation. We conjecture that such clusters provide a low-cost, energy-efficient, flexible, and ultimately effective platform to tackle a wide range of problems within this trilogy. This is a work in progress, and we now elaborate our position and give a preliminary status report. A wide range of Android tablet devices are available in terms of price and capabilities. “You get what you pay for” w.r.t. display resolution, sensors, and chipset---corresponding to the trilogy. $200 gets one a 1280x800-pixel touch display, …
Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Shilpika Shilpika, George K. Thiruvathukal, Nicholas Hayward, Konstantin Läufer
Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Shilpika Shilpika, George K. Thiruvathukal, Nicholas Hayward, Konstantin Läufer
Konstantin Läufer
No abstract provided.
Filesystems: Addressing The Last-Mile “Problem” In Services-Oriented/Cloud Computing, George K. Thiruvathukal, Joseph P. Kaylor, Konstantin Läufer
Filesystems: Addressing The Last-Mile “Problem” In Services-Oriented/Cloud Computing, George K. Thiruvathukal, Joseph P. Kaylor, Konstantin Läufer
Konstantin Läufer
We have designed and implemented RestFS, a software framework that provides a uniform, configurable connector layer for mapping remote web-based resources to local filesystem-based resources, recognizing the similarity between these two types of resources. Such mappings enable programmatic access to a resource, as well as composition of two or more resources, through the local operating system’s standard filesystem application programming interface (API), script-able file-based command-line utilities, and interprocess communication (IPC) mechanisms. The framework supports automatic and manual authentication.
As part of this talk, we demonstrate a new filesystem that interfaces to the SketchFab.com service to support 3D model visualization. For …
A Polyglot Approach To Bioinformatics Data Integration: A Phylogenetic Analysis Of Hiv-1, Steven Reisman, Thomas Hatzopoulous, Konstantin Läufer, George K. Thiruvathukal, Catherine Putonti
A Polyglot Approach To Bioinformatics Data Integration: A Phylogenetic Analysis Of Hiv-1, Steven Reisman, Thomas Hatzopoulous, Konstantin Läufer, George K. Thiruvathukal, Catherine Putonti
Konstantin Läufer
As sequencing technologies continue to drop in price and increase in throughput, new challenges emerge for the management and accessibility of genomic sequence data. We have developed a pipeline for facilitating the storage, retrieval, and subsequent analysis of molecular data, integrating both sequence and metadata. Taking a polyglot approach involving multiple languages, libraries, and persistence mechanisms, sequence data can be aggregated from publicly available and local repositories. Data are exposed in the form of a RESTful web service, formatted for easy querying, and retrieved for downstream analyses. As a proof of concept, we have developed a resource for annotated HIV-1 …
Design And Implementation Of Triveni: A Process-Algebraic Api For Threads + Events, Christopher P. Colby, Lalita Jategaonkar Jagaeesan, Radhakrishnan Jagadeesan, Konstantin Laufer, Carlos Puchol
Design And Implementation Of Triveni: A Process-Algebraic Api For Threads + Events, Christopher P. Colby, Lalita Jategaonkar Jagaeesan, Radhakrishnan Jagadeesan, Konstantin Laufer, Carlos Puchol
Konstantin Läufer
We describe Triveni, a framework and API for integrating threads and events. The design of Triveni is based on an algebra, including preemption combinators, of processes. Triveni is compatible with existing threads standards, such as Pthreads and Java threads, and with the event models structured on the Observer pattern. We describe the software architecture and algorithms underlying a concrete implementation of Triveni in Java. This environment includes specification based testing of safety properties. The results described in the paper have been used to integrate process-algebraic methods into (concurrent) object orientated programming.
Network Technologies Used To Aggregate Environmental Data, Paul Stasiuk, Konstantin Läufer, George K. Thiruvathukal
Network Technologies Used To Aggregate Environmental Data, Paul Stasiuk, Konstantin Läufer, George K. Thiruvathukal
Konstantin Läufer
The goal of the Loyola Weather Service (lws) project is to design and build a system of functioning environmental monitoring widgets that can intelligently and autonomously control the environment around them based on set thresholds and triggers. The widgets will also have the ability to aggregate their data and easily display this data in various ways: through a user interface in the room that the widget is placed, via a web application, and programmatically via a RESTful web service.
Putting Type Annotations To Work, Martin Odersky, Konstantin Laufer
Putting Type Annotations To Work, Martin Odersky, Konstantin Laufer
Konstantin Läufer
We study an extension of the Hindley/Milner system with explicit type scheme annotations and type declarations. The system can express polymorphic function arguments, user-defined data types with abstract components, and structure types with polymorphic fields. More generally, all programs of the polymorphic lambda calculus can be encoded by a translation between typing derivations. We show that type reconstruction in this system can be reduced to the decidable problem of first-order unification under a mixed prefix.
Automated Systematic Testing For Constraint-Based Interactive Services, Patrice Godefroid, Lalita Jategaonkar Jagadeesan, Radha Jagadeesan, Konstantin Laufer
Automated Systematic Testing For Constraint-Based Interactive Services, Patrice Godefroid, Lalita Jategaonkar Jagadeesan, Radha Jagadeesan, Konstantin Laufer
Konstantin Läufer
Constraint-based languages can express in a concise way the complex logic of a new generation of interactive services for applications such as banking or stock trading, that must support multiple types of interfaces for accessing the same data. These include automatic speech-recognition interfaces where inputs may be provided in any order by users of the service. We study in this paper how to systematically test event-driven applications developed using such languages. We show how such applications can be tested automatically, without the need for any manually-written test cases, and effi- ciently, by taking advantage of their capability of taking unordered …
An Object-Oriented Framework For Userland Filesystem Development, George K. Thiruvathukal, Joseph P. Kaylor, Konstantin Läufer
An Object-Oriented Framework For Userland Filesystem Development, George K. Thiruvathukal, Joseph P. Kaylor, Konstantin Läufer
Konstantin Läufer
Userland filesystems (also known as virtual/installable filesystems) represent a promising direction for interfacing the traditional filesystem concept to specific domain instances (e.g. finance, bioinformatics, astronomy, photo sharing services, etc.) One might initially be inclined to think of filesystems as “old school” or “so 1980s” but their use remains an established practice in computational science and in many business domains, owing to the stability of filesystems interfaces and the continued perception of having great overall performance. While the promise of building one’s own userland filesystems is great, the approach has seen little adoption, owing to the complexity of working with low-level …
Simplifying Domain Modeling And Memory Management In User-Mode Filesystems With The Nofs Framework, Joseph P. Kaylor, Konstantin Läufer, George K. Thiruvathukal
Simplifying Domain Modeling And Memory Management In User-Mode Filesystems With The Nofs Framework, Joseph P. Kaylor, Konstantin Läufer, George K. Thiruvathukal
Konstantin Läufer
Transparent access to remote data sets and data arising from web services is a non-trivial challenge to application developers. This early stage work addresses this challenge with NOFS, an object-oriented framework for creating filesystems to support domain specific functionality. While an early stage work, we present a solution to solve the access problem. Our solution greatly simplifies the task of filesystems development by providing the glue code needed between a domain model and the filesystem contract. We demonstrate support for domain models that are larger than physical memory and demonstrate how the concerns of caching can be removed from user-mode …
A Polyglot Approach To Bioinformatics Data Integration: Phylogenetic Analysis Of Hiv-1, Steven Reisman, Catherine Putonti, George K. Thiruvathukal, Konstantin Läufer
A Polyglot Approach To Bioinformatics Data Integration: Phylogenetic Analysis Of Hiv-1, Steven Reisman, Catherine Putonti, George K. Thiruvathukal, Konstantin Läufer
Konstantin Läufer
RNA-interference has potential therapeutic use against HIV-1 by targeting highly-functional mRNA sequences that contribute to the virulence of the virus. Empirical work has shown that within cell lines, all of the HIV-1 genes are affected by RNAi-induced gene silencing. While promising, inherent in this treatment is the fact that RNAi sequences must be highly specific. HIV, however, mutates rapidly, leading to the evolution of viral escape mutants. In fact, such strains are under strong selection to include mutations within the targeted region, evading the RNAi therapy and thus increasing the virus’ fitness in the host. Taking a phylogenetic approach, we …