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In this paper we present a proof-of-concept for an hydro acoustic fish-tag position estimation and tracking system. In our field-tested concept, a formation of Unmanned Surface Vehicles (USV) creates a mobile array of low-cost hydro acoustic fish-tag receivers. The array of receivers is able to estimate fish-tag locations and follow the fish on open waters, significantly increasing capabilities as...
In this paper, the OCcASION framework for Traffic Matrix (TM) estimation in Software Defined Networks (SDN) is proposed where, first in the learning phase, the Optimal Observation Matrix (OOM) of SNMP link-loads is estimated. Then in the measurement and inference phase, the OOM is used to coherently find the minimum-norm estimate of the unknown TM. This framework is applied under both non-adaptive...
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...
Background: Software effort estimates are necessary and critical at an early phase for decision makers to establish initial budgets, and in a government context to select the most competitive bidder for a contract. The challenge is that estimated software requirements is the only size information available at this stage, compounded with the newly increasing adoption of agile processes in the US DoD...
What would have happened if I did not have any code smell? This is an interesting question that no previous study, to the best of our knowledge, has tried to answer. In this paper, we present a method for implementing a what-if scenario analysis estimating the number of defective files in the absence of smells. Our industrial case study shows that 20% of the total defective files were likely avoidable...
Software Effort Estimation is key to the success of any project since all downstream activities such as planning, budgeting, developing and Monitoring cannot be executed without clarity on the scope of the activity that needs to be performed. This is a tertiary study that follows the Systematic Literature Review (SLR) process as put forth by Kitchenham in her seminal paper, based on five criteria:...
In Internet of Things (IoT) world, there can be many sensors deployed in a system, thus their costs must be considered during the system design and material selections, in order to support massive production and deployment. Design-To-Cost (DTC) is an effective technique for this situation. In Model-Based Design (MBD), DTC cost estimates are preferred to be generated from models as one of the parameters...
Estimating the difficulty of tasks is imperative for project planning, task assignment, and cost calculation. However, little is known about how and for what purpose software practitioners estimate task difficulty in their day-to-day work. In this paper, we interviewed 15 professionals to understand their needs and perceptions when estimating task difficulty. We find that practitioners do estimate...
The near field of two typical cassegrain dual-reflector antennas which are extensively used in the aerospace field, is simulated by using the software FEKO. The electrical field strength and the equivalent near-field gain in the Fresnel region are obtained. On this basis, this paper presents a rapid estimation method of equivalent near-field gain which merely uses the far-field radiation pattern....
Estimating effort is a very important task in any organization. Significant over or under-estimates can be very expensive for software project companies. The use of computing intelligence methods has been recently proposed for software development effort estimation. In this study, we present new models to estimate the effort required for the development of software projects. These new models were...
This paper considers the statistical approach to model software degradation process from time series data of system attributes. We first develop the continuous-time Markov chain (CTMC) model to represent the degradation level of system. By combining the CTMC with system attributes distributions, a continuous-time hidden Markov model (CT-HMM) is proposed as the basic model to represent the degradation...
User story literature nearly exclusively studies how to create, prioritise, or ensure the quality of a user story. Little is known about other activities and artefacts involved preceding or following these activities in systems development. Consequentially, software teams seeking to leverage user stories’ full potential do not know how to incorporate user stories into all aspects of their software...
The shift to software beamforming has inspired a myriad of adaptive beamformers. Some of these overestimate which signals originate from sidelobes and which originate from the mainlobe. This results in a Dark Region Artifact (DRA) next to hyperechoic targets. We investigate this artifact for seven beamformers: Delay-And-Sum (DAS), the Coherence Factor (CF), Generalized Coherence Factor (GCF), Phase...
The paper describes the development of a universal test functions generator to validate and setup the algorithms for investigating multiextremal systems characteristics. The main difference between the proposed functions and the set of known multiextremal test functions is their irregularity related to the extremes coordinate location and their respective quantitative values, since all known test...
The objective of the represented work is the effectiveness increase of PJ signals estimation in digital paths of telecommunication systems. The method and the device of phase jitter estimation of clock signals are suggested. That is characterized by enhanced resolving power and statistical stability of estimates by means of digital multistage periodogram-correlogram processing of jitter signals.
We introduce a machine learning approach for real life software development effort estimation. Our method uses state of the art developments such as distributed word embeddings in order to create a system that can estimate effort given only basic project management metrics and, most importantly, textual descriptions of tasks. We use an artificial neural network for automating the effort estimation...
The estimation of software effort is an essential and crucial activity for the software development life cycle. Software effort estimation is a challenge that often appears on the project of making a software. A poor estimate will produce result in a worse project management. Various software cost estimation model has been introduced to resolve this problem. Constructive Cost Model II (COCOMO II Model)...
Use case analysis has been widely adopted in modern software engineering due to its strength in capturing the functional requirements of a system. It is often done with a UML use case model that formalizes the interactions between actors and a system in the requirements elicitation iteration, and with architectural alternatives explored and user interface details specified in the following analysis...
Successfully developing and delivering multi-year, multi-person software projects remains a highly challenging task. Software engineering researchers have spent considerable energy investigating ways to improve this situation by developing various processes, techniques, and tools over the last five decades. Understanding trends in the current state of the practice is crucial to identifying the challenges...
This work addresses the problem of estimating the accuracy of a certain class of digital signal processing algorithms, known as linear signal transforms, when implemented on field programmable gate array (FPGA) hardware computational structure (HCS) units. A solution is provided through the formulation of a hardware development framework which uses complex multipliers and complex addition units as...
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