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Model-based software estimation uses algorithms and past project data to make predictions for new projects. This paper presents a comparative assessment of four modeling approaches, including the original COCOMO, COCOMO calibration, k-Nearest Neighbors, and a combination of COCOMO calibration and k-Nearest Neighbors. Our results indicate that using kNN to select the nearest projects and calibrating...
Efficient design of complex multiprocessor embedded systems requires fast technologies for early system cosimulation and evaluation. Host-compiled simulation has been proposed as an option for this purpose, since it enables accurately timed modeling at high simulation speeds. To achieve high accuracy, simulation technology has to consider internal details of the processing system, such as the modeling...
Contemporary generation today can be called digital generation because of the advancement of Information and communication technologies and the necessity of using them. The modern ICT technologies occupy our lives and change the way people learn, educate, work and even entertain. The main objective of this paper is to focus on educational aspect and more precisely how the new technologies influence...
The development of software radios has brought about a need for multi-band antenna feeds for use in the radio-frequency front-ends of satellite ground terminals. To provide the tools necessary for the design of such feeds, we have developed the Framework for Antenna Design and Optimization (FADO), a computer-based antenna design optimization framework based on the combination of custom-designed synthesis...
As one kind with the best comprehensive performance of various honeycombs, triangular honeycomb is an important structure to achieve lightweight. Focusing on the deficiency of the non-optimized macro-material distribution in uniform triangular honeycomb, a design and modeling method of variable-density triangular honeycomb structures was proposed. With a three-point bending beam as the design object,...
Originally developed for purely functional verification of software, native or host compiled simulation [6] has gained momentum, thanks to its considerable speedup compared to instruction set simulation (ISS). To obtain a performance model of the software, non-functional information is computed from the target binary code using low-level analysis and back-annotated into the highlevel code used to...
Deciding where to store containers has a high impact on the performance of a container terminal. The problem includes incomplete planning information. We propose a two-stage strategy which decides online where to store import, export, and transshipment containers. On the first stage, a block is chosen based on the workload of the gantry cranes at the blocks as well as either a transport distance or...
Creating new software or software-intensive systems is still a challenge and far removed from a traditional engineering domain. The increasing size of software deployed in typical systems and the emergence of very large highly distributed systems necessitates additional techniques to assure the systems quality. Using the example of the German automatic toll system we briefly outline a simulation driven...
The stencil pattern represents a vast variety of applications, ranging from geophysics to medical science. In application codes, the stencil kernel is often the part where most of the time is spent, thus forcing an efficient parallel implementation of it. On the other side we know that stencil computations are often memory-bound, which requires sophisticated parallelization techniques to get scalable...
Software requirement selection is to find a subset of requirements (so-called optimal set) that gives the highest customer value for a release of software while keeping the cost within the budget. Several industrial studies however, have demonstrated that requirements of software projects are intricately interdependent and these interdependencies impact the values of requirements. Furthermore, the...
This paper aims to present a methodology that helps improving systems modelling by using Process Integration and Design Optimization technologies. Then, the methodology has been applied on an automotive case study: the improvement of the hybrid vehicle TOYOTA PRIUS III modelling. This work has been carried out in the context of the international research program PLACIS (PLAteforme Collaborative d'Ingénierie...
Generated from the urgent demand of innovative teaching methods, the teaching strategy should be developed based on ability development of the students. An approach of designing for a fully instructive and smart system which builds optimizations that helps solve the current planar geometrical problems will be presented in this article. The technical solution for building a helpfully instructive and...
We make use of integer programming to model the scheduling of a fleet of vessels based on a predetermined operational cycle. The model consists of an objective function to be minimized and a large number of constraints that replicates the number of vessels, the operational cycle and the ambition levels. The objective function is zero when the selected ambition level is met. We use the software Mathematica...
The purpose of this work is to explore the possibility of using (Multi-disciplinary Design and Optimization) MDO frameworks for complex system design of space experiment. Considering both launch and space environmental requirements, the multi-objective optimization of a novel nested flying vehicle for space science experiments is carried out by decreasing launch weight, frequency response, vacuum...
This paper studies one particular aspect of providing communication security: firewall technology. This article provides a security framework in the form of packet filtering model within the firewall technology system and its components can be designed and evaluated. This paper introduces a reference model based on packet filtering firewall technology. All components are governed by a centralized...
Fault detection and identification (FDI) are important tasks in most modern industrial systems and processes. A variety of approaches both active and passive have been investigated. In much of the active work the focus was on designing an optimal test signal. However, much less attention was given to actually generating that test signal. Here the effect of including actuator effects in generating...
Fault detection and the related problem of identification (FDI) play an important role in many modern technological systems and processes. A variety of active and passive approaches have been investigated. Previous work on auxiliary signal design for one active approach used a bound on total uncertainty which included the state at the start of the test as part of a cost function. However, in some...
Simulation models are becoming an increasingly popular tool for the analysis and optimization of complex real systems in different fields. Finding an optimal system design requires performing a large parameter sweep. In this paper, we present the design of SOF (Simulation Optimization and exploration Framework on the cloud), a framework which exploits the computing power of a cloud computational environment...
Simulation models are becoming an increasingly popular tool for the analysis and optimization of complex real systems in different fields. Finding an optimal system design requires performing a large parameter sweep. In this paper, we present the design of SOF (Simulation Optimization and exploration Framework on the cloud), a framework which exploits the computing power of a cloud computational environment...
Benefit from less computational difficulty, barrier certificate based method has attracted much attention in safety verification of hybrid systems. Barrier certificates are inherent existences of a hybrid system and may have different types. A set of well-defined verification conditions is a prerequisite for successfully identifying barrier certificates of a specific type. Therefore, how to define...
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