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30th ACM International Conference on Design of Communication (SIGDOC)

作者： Watson, Robert Univ Washington Seattle WA 98195 USA

ISBN: (纸本)9781450314978

Computer technology has made amazing advances in the past few decades;however, the software documentation of today still looks strikingly similar to the software documentation used 30 years ago. If this continues into the 21st century, more and more software developers could be using 20th-century-style documentation to solve 21st-century problems with 21st-century technologies. Is 20th-century-style documentation up to the challenge? How can that be measured? This paper seeks to answer those questions by developing a heuristic to identify whether the documentation set for an application programming interface (API) contains the key elements of API reference documentation that help software developers learn an API. The resulting heuristic was tested on a collection of software documentation that was chosen to provide a diverse set of examples with which to validate the heuristic. In the course of testing the heuristic, interesting patterns in the API documentation were observed. For example, twenty-five percent of the documentation sets studied did not have any overview information, which, according to studies, is one of the most basic elements an API documentation set needs to help software developers learn to use the API. The heuristic produced by this research can be used to evaluate large sets of API documentation, track trends in API documentation, and facilitate additional research.

关键词： application programming interface API API reference documentation Software documentation Software libraries

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Hannibal at the gates: Cyberwarfare & the Solarwinds sunburst hack

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Journal of Information Technology Teaching Cases 2022年第2期12卷 115-120页

作者： Datta, Pratim Kent State University United States University of Johannesburg South Africa

The connected world economy, compounded by the COVID-19 pandemic, has forced countries, companies, and organizations to pivot to digitally transforming their operations. Sophisticated, state-sponsored perpetrators have seized this forced pivot to lay the groundwork for Cyberwarfare with Advanced Persistent Threats. Using the 2020 Solarwinds Orion Sunburst hack campaign, this research uses a grounded case study approach to highlight the facets of the Sunburst cyberwarfare campaign. Findings suggest that cyberwarfare underscores the need for revisiting organizational processes, culture, and paradigms that are capitalized and leveraged by state-sponsored perpetrators. The Sunburst hack prompted organizations to immediately assume technical solutions. Among them, organizations were quick to isolate infected assets and patch infected systems. However, this research argues that such a reactive technical fix is a vicious trend based on a “wait, watch, react” ideology. Instead, there is prima facie need for process reengineering organizational operations and cultures to build and maintain preventive readiness. © Association for Information Technology Trust 2021.

关键词： application programming interface case study cyberattacks cyberwarfare Process reengineering Solarwinds

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Development of Information Technologies for Storage of Data of Instrumental Observation Networks of the Far Eastern Branch of the Russian Academy of Sciences 4th

Development of Information Technologies for Storage of Data ...

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4th International Young Scientists Conference on Computational Science (YSC)

作者： Sorokin, Aleksei A. Korolev, Sergey P. Polyakov, Andrey N. Russian Acad Sci Ctr Comp Far Eastern Branch Khabarovsk Russia Natl Res Ctr Kurchatov Inst Moscow Russia

The paper describes the development of information technologies for distributed storage of data of instrumental observation networks created by the Far Eastern Branch of the Russian Academy of Sciences (FEB RAS). The prime goal of the distributed storage design is to process a large amount of real-time seismological data and provide fast and secure access using a cloud storage platform based on OpenStack Swift. On its basis, the allocation of the corresponding data storage has been done. The interaction with storage using existing application software as well as an assessment of the effectiveness of the solution is described.

关键词： data files databases cloud computing network of instrumental observations structured scientific datasets archive automated information system application programming interface

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Towards an integrated and efficient framework for leveraging reduced order models for multifidelity uncertainty quantification

Towards an integrated and efficient framework for leveraging...

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AIAA Science and Technology Forum and Exposition (AIAA SciTech)

作者： Blonigan, Patrick Geraci, Gianluca Rizzi, Francesco Eldred, Michael S. Sandia Natl Labs Extreme Scale Data Sci & Analyt Livermore CA 94550 USA Sandia Natl Labs Optimizat & Uncertainty Estimat Albuquerque NM 87123 USA NexGen Analyt Sheridan WY 82801 USA

ISBN: (数字)9781624105951

ISBN: (纸本)9781624105951

Truly predictive numerical simulations can only be obtained by performing Uncertainty Quantification. However, many realistic engineering applications require extremely complex and computationally expensive high-fidelity numerical simulations for their accurate performance characterization. Very often the combination of complex physical models and extreme operative conditions can easily lead to hundreds of uncertain parameters that need to be propagated through high-fidelity codes. Under these circumstances, a single fidelity uncertainty quantification approach, i.e. a workflow that only uses high-fidelity simulations, is unfeasible due to its prohibitive overall computational cost. To overcome this difficulty, in recent years multifidelity strategies emerged and gained popularity. Their core idea is to combine simulations with varying levels of fidelity/accuracy in order to obtain estimators or surrogates that can yield the same accuracy of their single fidelity counterparts at a much lower computational cost. This goal is usually accomplished by defining a priori a sequence of discretization levels or physical modeling assumptions that can be used to decrease the complexity of a numerical model realization and thus its computational cost. Less attention has been dedicated to low-fidelity models that can be built directly from a small number of available high-fidelity simulations. In this work we focus our attention on reduced order models (ROMs). Our main goal in this work is to investigate the combination of multifidelity uncertainty quantification and ROMs in order to evaluate the possibility to obtain an efficient framework for propagating uncertainties through expensive numerical codes. We focus our attention on sampling-based multifidelity approaches, like the multifidelity control variate, and we consider several scenarios for a numerical test problem, namely the Kuramoto-Sivashinsky equation, for which the efficiency of the multifidelity-ROM estimator is co

关键词： Computational Fluid Dynamics Linear Multistep Method Kuramoto Sivashinsky Equation application programming interface Computing Pearson Correlation Coefficient Nonlinear Systems Poiseuille Flow Sensitivity Analysis Aerospace System

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GEMS, a Generic Engine for MDO Scenarios: Key Features In application

GEMS, a Generic Engine for MDO Scenarios: Key Features In Ap...

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AIAA Aviation Forum and Exposition

作者： Gallard, F. Barjhoux, P. J. Olivanti, R. Gazaix, A. Inst Technol IRT St Exupery Syst Engn & Modeling Dept Toulouse France Inst Technol IRT St Exupery Toulouse France Univ Toulouse ICA F-31400 Toulouse France Airbus Operat SAS F-31060 Toulouse France Univ Toulouse ISAE SUPAERO F-31400 Toulouse France

ISBN: (数字)9781624105890

ISBN: (纸本)9781624105890

This paper illustrates the capabilities of the GEMS (a Generic Engine for MDO Scenarios) Multidisciplinary Design Optimization software library, on three MDO use cases. A range of aircraft MDO applications are covered, showing the versatility of GEMS, both in terms of problems that can be addressed, and type of users, from academic to industrial ones. The focus is made on how the framework concepts allow to set up the MDO processes in an automatic and versatile way. The first use case is a series of trade-offs and MDO processes for high-fidelity aerodynamics-structure-OAD (Overall Aircraft Design) industrial engine pylon design, which is the main application of the IRT Saint Exupery MDA-MDO project. The second use case, consists in two multi-level MDO formulations that are developed to address mixed categorical and continuous structural optimization problems. In the third use case, an algorithmic framework is developed to perform multi-fidelity adjoint-based aerodynamic shape optimization, aiming at decreasing the restitution time compared to mono-fidelity approaches.

关键词： Multidisciplinary Design Optimization Aerodynamic Shape Optimization Structural Optimization Aircraft Design Branch and Bound Algorithm Structural Simulation Derivative Free Optimization Finite Element Modeling Nastran application programming interface

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An Interactive Web-Based System Using Cloud for Large-Scale Visual Analytics

An Interactive Web-Based System Using Cloud for Large-Scale ...

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Conference on Imaging and Multimedia Analytics in a Web and Mobile World

作者： Kaseb, Ahmed S. Berry, Everett Rozolis, Erik McNulty, Kyle Bontrager, Seth Koh, Youngsol Lu, Yung-Hsiang Delp, Edward J. Purdue Univ Sch Elect & Comp Engn W Lafayette IN 47907 USA

ISBN: (纸本)9781628414981

Network cameras have been growing rapidly in recent years. Thousands of public network cameras provide tremendous amount of visual information about the environment. There is a need to analyze this valuable information for a better understanding of the world around us. This paper presents an interactive web-based system that enables users to execute image analysis and computer vision techniques on a large scale to analyze the data from more than 65,000 worldwide cameras. This paper focuses on how to use both the system's website and application programming interface (API). Given a computer program that analyzes a single frame, the user needs to make only slight changes to the existing program and choose the cameras to analyze. The system handles the heterogeneity of the geographically distributed cameras, e.g. different brands, resolutions. The system allocates and manages Amazon EC2 and Windows Azure cloud resources to meet the analysis requirements.

关键词： Visual Analytics Interactive Website application programming interface Network Camera Cloud Computing

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An API Development Model for Digital Twins 19

An API Development Model for Digital Twins

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19th IEEE International Conference on Software Quality, Reliability and Security (QRS)

作者： Scheibmeir, Jim Malaiya, Yashwant K. Colorado State Univ Ft Collins CO 80523 USA

ISBN: (纸本)9781728139258

Digital twins are software implementations of their physical counterparts. These software representations act through application program interfaces (APIs) to the physical devices they monitor, engage with and possibly control. Here a development model is proposed to ensure the desired reliability and performance of the API which is critical to the overall success of the Digital Twin.

关键词： application programming interface API Digital twin test automation software quality

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Generated DB call-level-interfaces - application-specific access optimization by means of binding flexibility

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Informatik - Forschung und Entwicklung 2000年第2期15卷 67-82页

作者： Härder, Theo Nink, Udo Ritter, Norbert Universität Kaiserslautern 67653 Kaiserslautern Postfach 3049 Germany

application programming interfaces (API) for database systems should preserve both the strengths of the database management system and of the programming languages. In addition to this general objective, innovative concepts of both domains as well as requirements of advanced application areas like CAD and software development must be observed. Our approach of generated call-level-interfaces is supposed to contribute to bringing closer together the type systems of object-relational database systems and object-oriented programming languages. Besides generating interfaces it supports application-specific configuration for optimization purposes. In this article, we describe generation/configuration of (generated) call-level-interfaces as well as their exploitation. Furthermore, we give some empirical results, showing possible performance gains. The latter can be achieved by application-specific use of early bindings (of data manipulation operations) as well as of pointer swizzling and prefetching mechanisms. © Springer-Verlag 2000.

关键词： application programming interface Binding time Database systems Generative methods Object orientation

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Drone Inspection Flight Path Generation from 3D CAD Models: Power Plant Boiler Case Study

Drone Inspection Flight Path Generation from 3D CAD Models: ...

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AIAA Science and Technology Forum and Exposition (AIAA SciTech)

作者： Ortega, A. G. Reyes-Munoz, J. McGee, M. Choudhuri, A. Flores-Abad, A. Univ Texas El Paso Ctr Space Explorat & Technol Res Mech Engn Dept El Paso TX 79968 USA Univ Texas El Paso Ctr Space Explorat & Technol Res Elect & Comp Engn Dept El Paso TX 79968 USA Univ Texas El Paso Ctr Space Explorat & Technol Res El Paso TX 79968 USA

ISBN: (数字)9781624105951

ISBN: (纸本)9781624105951

Robotic technologies for inspection purposes of large-scale structures have grown in interest. Such technologies are encouraged to reduce the risk in which human operators are involved and to reduce costs due to downtime of the equipment. In the Energy sector, high interest is placed on powerplant components where their correct operation is paramount. Inspired in the synthetic vision systems for aerial vehicles that use three-dimensional space (3D) to provide pilots with clear and intuitive means of understanding their flying environment, here we propose the use of the 3D Computer Aided Design (CAD) model of structural components of a power plant to define an off-line flight path for Unmanned Aerial Vehicles (UAVs). This method is feasible to implement because nowadays the CAD model of structural elements is readily available. Since this work focuses on structural inspection, only the surface characteristics of the model are required. To acquire, analyze and process the 3D model, first, the STL file is produced to obtain surface points and vectors normal to the surface. Later, by introducing other variables such as wall offset and controlled trajectory between each outline and each subsequent layer, the flight path is generated. This method would support efforts where the UAV is required to fly with no GPS available and/or beyond line of sight (BLOS). The effort was conducted using the MATLAB software and the multiple processes involved are discussed in detail. The final trajectory was validated using the Gazebo simulator which employs robust kinematic and dynamic models.

关键词： Power Plants Computer Aided Design Unmanned Aerial Vehicle Boilers application programming interface Structural Element Synthetic Vision System Yaw Quadrotor Helicopter Robotics

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Towards a Framework for Parametric Models and Geometric Sensitivity Computations with SU2 and pyCAPS

Towards a Framework for Parametric Models and Geometric Sens...

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AIAA Aviation Forum

作者： Shen, Yiren Patel, Harsh C. Alonso, Juan J. Galbraith, Marshall C. Stanford Univ Dept Aeronaut & Astronaut Stanford CA 94305 USA MIT Dept Aeronaut & Astronaut Cambridge MA 02139 USA

ISBN: (数字)9781624107047

ISBN: (纸本)9781624107047

Shape design optimization relies on obtaining objective and constraint functional sensitivities to geometric parameters in order to explore the design space effectively. To facilitate computer-aided design (CAD) applications in industry, this study presents a workflow for effectively handling geometric constraints and computing analytic sensitivities. The workflow is capable of computing parametric sensitivities by combines geometric sensitivities obtained using Engineering Sketch Pad with adjoint surface sensitivities from the SU2 adjoint solver through a dot product within the pyCAPS framework. The effectiveness and limitations of this workflow are evaluated through three test cases, including a preliminary demonstration of a shape optimization problem in wing design. The results indicate that the conceptual effectiveness of the proposed workflow, while noting the need for further improvement in the mesh generation routine.

关键词： Computer Aided Design Multidisciplinary Design and Optimization Shape Optimization Computing Rectangular Wing Mesh Generation Proper Orthogonal Decomposition application programming interface Aerodynamic Shape Optimization Angle of Attack

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