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Relevant bibliographies by topics / Cost Estimator

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Academic literature on the topic 'Cost Estimator'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Cost Estimator"

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Hur, Sung-ho, and Yiza Srikanth Reddy. "Neural Network-Based Cost-Effective Estimation of Useful Variables to Improve Wind Turbine Control." Applied Sciences 11, no. 12 (June 18, 2021): 5661. http://dx.doi.org/10.3390/app11125661.

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The estimation of variables that are normally not measured or are unmeasurable could improve control and condition monitoring of wind turbines. A cost-effective estimation method that exploits machine learning is introduced in this paper. The proposed method allows a potentially expensive sensor, for example, a LiDAR sensor, to be shared between multiple turbines in a cluster. One turbine in a cluster is equipped with a sensor and the remaining turbines are equipped with a nonlinear estimator that acts as a sensor, which significantly reduces the cost of sensors. The turbine with a sensor is used to train the estimator, which is based on an artificial neural network. The proposed method could be used to train the estimator to estimate various different variables; however, this study focuses on wind speed and aerodynamic torque. A new controller is also introduced that uses aerodynamic torque estimated by the neural network-based estimator and is compared with the original controller, which uses aerodynamic torque estimated by a conventional aerodynamic torque estimator, demonstrating improved results.

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Oyerinde, Olutayo Oyeyemi, Adam Flizikowski, and Tomasz Marciniak. "Iterative Hard Thresholding with Combined Variable Step Size & Momentum-Based Estimator for Wireless Communication Systems with Dynamic Sparse Channels." Electronics 10, no. 7 (April 1, 2021): 842. http://dx.doi.org/10.3390/electronics10070842.

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The channel of the broadband wireless communications system can be modeled as a dynamic sparse channel. Such a channel is difficult to reconstruct by using linear channel estimators that are normally employed for dense channels’ estimation because of their lack of capacity to use the inherent channel’s sparsity. This paper focuses on reconstructing this type of time-varying sparse channel by extending a recently proposed dynamic channel estimator. Specifically, variable step size’s mechanism and variable momentum parameter are incorporated into traditional Iterative Hard Thresholding-based channel estimator to develop the proposed Iterative Hard Thresholding with Combined Variable Step Size and Momentum (IHT-wCVSSnM)-based estimator. Computer simulations carried out in the context of a wireless communication system operating in a dynamic sparse channel, show that the proposed IHT-wCVSSnM-based estimator performs better than all the other estimators significantly. However, the computational complexity cost of the proposed estimator is slightly higher than the closely performing channel estimator. Nevertheless, the inherent complexity cost of the proposed estimator could be compromised in a situation where the system’s performance is of higher priority when compared with the computational complexity cost.

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Kasie, Fentahun Moges, and Glen Bright. "Integrating fuzzy case-based reasoning, parametric and feature-based cost estimation methods for machining process." Journal of Modelling in Management 16, no. 3 (January 18, 2021): 825–47. http://dx.doi.org/10.1108/jm2-05-2020-0123.

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Purpose This paper aims to propose an intelligent system that serves as a cost estimator when new part orders are received from customers. Design/methodology/approach The methodologies applied in this study were case-based reasoning (CBR), analytic hierarchy process, rule-based reasoning and fuzzy set theory for case retrieval. The retrieved cases were revised using parametric and feature-based cost estimation techniques. Cases were represented using an object-oriented (OO) approach to characterize them in n-dimensional Euclidean vector space. Findings The proposed cost estimator retrieves historical cases that have the most similar cost estimates to the current new orders. Further, it revises the retrieved cost estimates based on attribute differences between new and retrieved cases using parametric and feature-based cost estimation techniques. Research limitations/implications The proposed system was illustrated using a numerical example by considering different lathe machine operations in a computer-based laboratory environment; however, its applicability was not validated in industrial situations. Originality/value Different intelligent methods were proposed in the past; however, the combination of fuzzy CBR, parametric and feature-oriented methods was not addressed in product cost estimation problems.

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Guo, Du, Ma, Huo, and Peng. "A Model for Animal Home Range Estimation Based on the Active Learning Method." ISPRS International Journal of Geo-Information 8, no. 11 (October 30, 2019): 490. http://dx.doi.org/10.3390/ijgi8110490.

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Home range estimation is the basis of ecology and animal behavior research. Some popular estimators have been presented; however, they have not fully considered the impacts of terrain and obstacles. To address this defect, a novel estimator named the density-based fuzzy home range estimator (DFHRE) is proposed in this study, based on the active learning method (ALM). The Euclidean distance is replaced by the cost distance-induced geodesic distance transformation to account for the effects of terrain and obstacles. Three datasets are used to verify the proposed method, and comparisons with the kernel density-based estimator (KDE) and the local convex hulls (LoCoH) estimators and the cross validation test indicate that the proposed estimator outperforms the KDE and the LoCoH estimators.

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Wade, Gary L., and William A. Thomas. "COMPUTER COST ESTIMATOR FOR LANDSCAPE INSTALLATION." HortScience 27, no. 11 (November 1992): 1175e—1175. http://dx.doi.org/10.21273/hortsci.27.11.1175e.

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Cost estimating and job bidding are among the most complex and time-consuming tasks of landscape professionals. A software package was developed to make cost estimating more accurate and efficient. HORT LAND, computer cost estimator for landscape installation, was developed for IBM compatible PC's using SuperCalc 5 spreadsheet software. The user builds a series of data bases, including an items listing of materials and equipment utilized in his operation along with their associated cost. Then, he defines a series of generic tasks, such as planting a 1-gallon size plant, and refers to the previous items list and associated code numbers for the materials and equipment necessary to install the plant. Once these initial data bases are constructed and saved, the user inputs a plant list, including size and price, then instructs the computer to translate the appropriate data from the initial data bases to arrive at a detailed listing of costs. The program then computes direct job cost and bid price, including overhead and profit.

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Munguía, J., J. Ciurana, and C. Riba. "Neural-network-based model for build-time estimation in selective laser sintering." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 223, no. 8 (April 24, 2009): 995–1003. http://dx.doi.org/10.1243/09544054jem1324.

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Cost assessment for rapid manufacturing (RM) is highly dependent on time estimation. Total build time dictates most indirect costs for a given part, such as labour, machine costs, and overheads. A number of parametric and empirical time estimators exist; however, they normally account for error rates between 20 and 35 per cent which are then translated to inaccurate final cost estimations. The estimator presented herein is based on the ability of artificial neural networks (ANNs) to learn and adapt to different cases, so that the developed model is capable of providing accurate estimates regardless of machine type or model. A simulation is performed with MATLAB to compare existing approaches for cost/time estimation for selective laser sintering (SLS). Error rates observed from the model range from 2 to 15 per cent, which shows the validity and robustness of the proposed method.

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Khare, Brij, and Habib Rehman. "Modified chain regression type estimator for population mean in the presence of non- response." International Journal of Accounting and Economics Studies 3, no. 2 (November 27, 2015): 165. http://dx.doi.org/10.14419/ijaes.v3i2.5491.

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<p>A modified chain regression type estimator for population mean in the presence of non-response have been proposed replacing Hansen & Hurwitz (1946) estimator for population mean by Searls (1964) type improved estimator and using Hansen & Hurwitz (1946) estimator for based on available information comparing to the study character in the second phase sample. The expressions for MSE for fixed sample size and also fixed cost have been obtained. The empirical studies show that the proposed estimator is more efficient than the relevant estimators in the case of fixed sample size as well as for fixed cost.</p>

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Zhang, Dongmin, Qiang Song, Guanfeng Wang, and Chonghao Liu. "A Novel Longitudinal Speed Estimator for Four-Wheel Slip in Snowy Conditions." Applied Sciences 11, no. 6 (March 22, 2021): 2809. http://dx.doi.org/10.3390/app11062809.

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This article proposes a novel longitudinal vehicle speed estimator for snowy roads in extreme conditions (four-wheel slip) based on low-cost wheel speed encoders and a longitudinal acceleration sensor. The tire rotation factor, η, is introduced to reduce the deviation between the rotation tire radius and the manufacturer’s marked tire radius. The Local Vehicle Speed Estimator is defined to eliminate longitudinal vehicle speed estimation error. It improves the tire slip accuracy of four-wheel slip, even with a high slip rate. The final vehicle speed is estimated using two fuzzy control strategies that use vehicle speed estimates from speed encoders and a longitudinal acceleration sensor. Experimental and simulation results confirm the algorithm’s validity for estimating longitudinal vehicle speed for four-wheel slip in snowy road conditions.

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DoĞanata, Yurdaer N., and Asser N. Tantawi. "A Video Server cost/performance Estimator tool." Multimedia Tools and Applications 1, no. 2 (June 1995): 185–202. http://dx.doi.org/10.1007/bf01215938.

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Ekung, Samuel, Adeniran Lashinde, and Emmanuel Adu. "Critical Risks to Construction Cost Estimation." Journal of Engineering, Project, and Production Management 11, no. 1 (January 1, 2021): 19–29. http://dx.doi.org/10.2478/jeppm-2021-0003.

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AbstractThe prevalence of cost overrun in project delivery suggests an acute dearth of inclusive understanding of the effect of risks on construction cost estimation. In aberrant to the generic assumptions, customary to inquiries in construction risk researches, this paper appraised critical construction estimating risks. The study evaluated the sources, frequency and significance of construction estimating risks, using data from a questionnaire survey of 206 quantity surveyors in Nigeria. The data were analysed using factor analysis, Fussy Set Theory, Terrell Transformation Index (TTI), and Kruskal Wallis H tests. The results showed that estimating risks are correlate seven principal sources, namely: estimating resources, construction knowledge, design information, economic condition, the expertise of estimator, geographic factor, cost data, and project factors (λ, > 0.70 <1.0). Twenty-nine risk factors likewise emerged critical construction estimation risks (TTI, 69-87 > 65 percent) and the top three were low construction knowledge, inaccurate cost information and changes in government regulations (factor scores > 0.60 > 0.50). The awareness and accurate assessment of these risks into project cost estimation would reduce cost overrun. The study, therefore, recommends synergies between projects’ internal/ external environments for proper scoping of these risks into project estimates.

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Dissertations / Theses on the topic "Cost Estimator"

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Rollins, Lynnette S. "Revised lumber yard cost estimator work sample." Online version, 2000. http://www.uwstout.edu/lib/thesis/2000/2000rollinsl.pdf.

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Gandhi, Raju P. "REDUCTION / ELIMINATION OF ERRORS IN COST ESTIMATES USING CALIBRATION – AN ALGORITHMIC APPROACH." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134575761.

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Boyer, John R. (John Raymond) 1979. "Compilation of a materials cost database for a web-based composites cost estimator." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/31101.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
Includes bibliographical references (p. 44-45).
The production of composite materials continues to be an expensive process. The WEB-Based Cost Estimation Model enables one to approximate the cost of manufacturing composites, so as to assist the user in making sound economic decisions. An extensive, up-to-date materials database is an essential part of such a cost estimator. This paper presents a list of materials to be added to the existing database and also derives a materials selection chart for six manufacturing processes.
by John R. Boyer.
S.B.

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Gildenblatt, Robbie B. "A Methodology Incorporating Manufacturing System Capacity in Manufacturing Cost Estimation." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1357314439.

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Afetornu, Charles. "The influence of estimator attitude on project cost reliability." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8536.

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The reliability of project estimates is dependent on a number of factors that can be classed as exogenous or endogenous to the estimator. The exogenous factors comprise information, environment, technology, methods and processes, which are external to the estimator. The endogenous factors reflect personal characteristics associated with the estimator and consist of aspects such as judgement, preferences and personality. Construction's effort to improve the estimating function has addressed both the practice of, and process of delivering the estimate. Much of the effort, however, has been addressed at aspects of estimating that can be considered classed under exogenous factors. This includes the use of technology to improve both the accuracy of computation and the speed for generating the estimate. Notwithstanding progressive improvement achieved in estimating from addressing such exogenous factors, most project-oriented industries still suffer from unreliable estimates. Although the problem of unreliable estimates is a worldwide phenomenon, it reflects more starkly in many developing economies, where its effect is much more striking. Understanding the root causes of the persistence of unreliable estimates would therefore, call for a focus on factors other than the exogenous ones that most improvement and development efforts have focus on. The study, which formed the basis of this thesis adopts the position that any improvements in reliability, beyond what the exogenous-based developments have achieved so far, lies in the contribution that estimators can make by addressing their endogenous factors. For that position to be valid, the study showed that the personality characteristics of various estimators produce different levels of reliability. Three endogenous factors, experience, qualification, and personality archetype (or trait) were employed to explore the relationships with estimating reliability. A quantitative research approach was adopted for the investigation, as the nature of evidence required was primarily objective, to substantiate the argument that different levels of particular endogenous factors produce different reliabilities in estimating. Data for the study was obtained from Ghana. Two categories of sample data were collected through stratification of the population, followed by systematic sampling methods. The two samples were a control group, comprising estimators with more than or equal to ten years experience; and an observed (or study group), made up of estimators with less than ten years experience. An instrument based on a self-reporting protocol was developed and utilized in the elicitation of data from both groups.

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Bhagawat, Pankaj. "Design of a robust parameter estimator for nominally Laplacian noise." Texas A&M University, 2003. http://hdl.handle.net/1969/107.

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Liu, Yang. "Aspects of linking CAD and cost estimation software." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52136.

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Thesis (MScEng)--Stellenbosch University, 2001.
ENGLISH ABSTRACT: This thesis describes a module that links AutoCAD and CeDeas (cost estimation software which was developed by Department of Mechanical Engineering, University of Stellenbosch). CeDeas is intended for estimating the direct manufacturing cost of simple welded assemblies in a batch production environment. It is aimed at use during late concept design or early detail design. The link module was developed in Borland C++ Builder. By using COM (Component Object Model) technology, the link module employs the methods and the properties of the AutoCAD automation interface to extract manufacturing information that is required by CeDeas. The link module prompts the user to pick objects in an AutoCAD drawing and then determines the values required by CeDeas to estimate the manufacturing cost. The user can choose between a "direct select method" (which uses the properties of geometric entities already in the drawing) and a "user define method" (whereby the user defmes temporary entities or combines aspects of existing entities in the AutoCAD drawing). With these results and some non-geometric inputs, the user can get a cost estimate of components and assemblies. After design changes, the link module can provide CeDeas with updated values with minimal user interaction in situations where the "direct select method" was used. The designer can therefore easily use the cost estimates to compare design alternatives to optimise the design. Validation studies demonstrated the numerical accuracy of the use of the link module. The link module can be regarded as an extension of CeDeas. At present it only supports AutoCAD R14, but can be extended to support AutoCAD 2000 and Mechanical Desktop.
AFRIKAANSE OPSOMMING: 'n Module wat dien as skakel tussen AutoCAD and CeDeas (kosteberamingsagteware ontwikkel deur die Departement van Meganiese Ingenieurswese, Universiteit van Stellenbosch) word in hierdie tesis beskryf. Die doel van CeDeas is om die direkte vervaardiginskoste van eenvoudige, gesweisde samestellings, in 'n lot-produksie omgewing, te beraam. Dit is gemik op gebruik tydens laat konsepontwerp en vroeë detailontwerp. Die skakelmodule is ontwikkel in Borland C++ Builder. Deur van COM (Component Object Model) tegnologie gebruik te maak, kry die skakelmodule toegang tot die funksies en eienskappe van AutoCAD se outomatisasie koppelvlak en kan sodoende die vervaardigingsinligting onttrek wat deur CeDeas benodig word. Die skakelmodule vra die gebruiker om voorwerpe in 'n AutoCAD tekening te kies en bepaal dan die waardes wat deur CeDeas benodig word om die vervaardigingskoste te skat. Die gebruiker kan kies tussen 'n "direkte keuse metode" (wat die eienskappe van geometriese entiteite wat reeds in die tekening is, gebruik) en 'n "gebruiker definieer metode" (waarin die gebruiker tydelike entiteite defmieer of kombinasies van aspekte van bestaande entiteite in die AutoCAD tekening gebruik). 'n Koste beraming van komponente of samestellings kan verkry word met hierdie inligting tesame met ander nie-geometriese inligting. Na ontwerpsveranderings, kan die skakelmodule hersiene waardes vir CeDeas voorsien met minimale gebruikers-interaksie in gevalle waar die "direkte keuse metode" gebruik is. Die gebruiker kan daarom maklik die kosteskattings gebruik om ontwerpsaltematiewe te vergelyk om die ontwerp te optimeer. Evalueringstudies het die numeriese akkuraatheid van die skakelmodule bevesting. Hierdie module kan as 'n uitbreiding van CeDeas beskou word. Tans werk die module slegs met AutoCAD R14, maar dit kan uitgebrei word om met AutoCAD 2000 en Mechanical Desktop te werk.

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Motrunich, Anastasiia. "Estimation des paramètres pour les séquences de Markov avec application dans des problèmes médico-économiques." Thesis, Le Mans, 2015. http://www.theses.fr/2015LEMA1009/document.

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Dans la première partie de cette thèse, nous considérons plusieurs problèmes d'estimation de paramètre de dimension finie pour les séquences de Markov dans l'asymptotique des grands échantillons. Le comportement asymptotique des estimateurs bayésiens et les estimateurs obtenus par la méthode des moments sont décrits. Nous montrons que sous les conditions de régularité ces estimateurs sont consistants et asymptotiquement normaux et que l'estimateur bayésien est asymptotiquement efficace. Les estimateur-processus du maximum de vraisemblance un-pas et deux-pas sont étudiés. Ces estimateurs nous permettent de construire des estimateurs asymptotiquement efficaces sur la base de certainsestimateurs préliminaires, par exemple, les estimateurs obtenus par la méthode des moments ou l'estimateur deBayes et la structure de l'estimateur du maximum de vraisemblance un-pas. Nous proposons notamment des processus autorégressifs non linéaires comme exemple et nous illustrons les propriétés de ces estimateurs à l'aide de simulations numériques. Dans la deuxième partie, nous donnons les applications de processus de Markov en économie de la santé. Nous comparons les modèles de Markov homogènes et non-homogènes pour l'analyse coût-efficacité de l'utilisation depansements transparents contenant un gel de gluconate de chlorhexidine par rapport aux pansements transparents standard. Le pansement antimicrobien protège les accès vasculaire centrale et réduit le risque de bactériémies liées aux cathéters. L'impact de l'approche de modélisation sur la décision d'adopter des pansements antimicrobiens pour les patients gravement malades est discuté
In the first part of this dissertation we consider several problems of finite-dimensional parameter estimation for Markov sequences in the asymptotics of large samples. The asymptotic behavior of the Bayesian estimators and the estimators of the method of moments are described. It is shown that under regularity conditions these estimators are consistent and asymptotically normal. We show that the Bayesian estimator is asymptotically efficient. The one-step and two-step maximum likelihood estimator-processes are studied. These estimators allow us to construct the asymptotically efficient estimators based on some preliminary estimators, say, the estimators of the method of moments or Bayes estimator and the one-step maximum likelihood estimator structure. We propose particular non-linear autoregressive processes as examples and we illustrate the properties of these estimators with the help of numerical simulations. In the second part we give theapplications of Markov processes in health economics. We compare homogeneous and non-homogeneous Markov models for cost-effectiveness analysis of routine use of transparent dressings containing a chlorhexidine gluconate gel pad versus standard transparent dressings. The antimicrobial dressing protects central vascular accesses reducing the risk of catheter-related bloodstream infections. The impact of the modeling approach on the decision of adopting antimicrobialdressings for critically-ill patients is discussed

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Munasib, Abdul B. A. "Lifecycle of social networks: A dynamic analysis of social capital accumulation." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1121441394.

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Gifra, Bassó Ester. "Desarrollo de un modelo para el seguimiento y control económico y temporal durante la fase de ejecución en la obra pública. Integration of information for advanced detection of cost overruns-IMADO." Doctoral thesis, Universitat de Girona, 2018. http://hdl.handle.net/10803/550975.

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The primary objective of this research is to modify the models regularly used to record and monitor the implementation costs of public works projects from the perspective of the promotor, the project directors or the project managers. This is done with a structure similar to the traditional system of meticulously recording project costs to obtain additional trustworthy and accurate information about current and future economic deviations that may occur during project implementation and about the probable liquidation and closing horizon of the project. That is possible if the economic information generated during the project implementation, which current cost control models do not incorporate until its implementation is certified, are incorporated into the structures of existing models for the control and monitoring of implementation costs. The sub-objectives of this research include applying this new technology and the new model to improve permanent control of the amount of economic deviations sustained during project implementation, identify the causes of deviation, graphically and analytically represent the economic behaviour, comply with the deadline for implementing the project and incorporate dashboards into periodical project reports
El principal objectiu d'aquesta investigació és modificar els models que s'utilitzen habitualment per registrar i monitoritzar els costos durant el procés d'execució d'obra des de la perspectiva del promotor públic, de la direcció facultativa o la dels gestors del projecte, a fi que amb una estructura de registre similar i respectuosa amb la informació que s'obté del tradicional sistema de registre de control de costos d'obra, sigui possible obtenir addicionalment informació fiable i veraç sobre les desviacions econòmiques presents i futures que poden esdevenir durant l'execució, així com sobre l'horitzó probable de liquidació i tancament de l'obra, d'acord amb la informació disponible. Això és possible si s’incorpora a les estructures dels models actuals de control i seguiment de costos d'execució, la informació d'índole econòmic que es genera durant el procés de realització de l'obra i que no contemplen els actuals models de control de costos fins al moment concret de l'acreditació de la seva execució a obra. Paral·lelament, aquesta investigació es marca com subobjectius la possibilitat de millorar, mitjançant la proposta d'aquesta nova metodologia i l'aplicació del nou model, el control permanent del volum total de les desviacions econòmiques que suporta l'execució d'obra, la possibilitat d'assignació de causes de desviació, la representació gràfica i analítica del comportament econòmic i de compliment de termini de l'execució d'obra, així com la incorporació de quadres de comandament als informes periòdics d'obra

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Books on the topic "Cost Estimator"

1

Gleason, Dennis D. 2009 national painting cost estimator. Carlsbad, CA: Craftsman Book Co., 2008.

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Generazio, Edward R. Technology benefit estimator (T/BEST): User's manual. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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Silver, Gerald A. A money-making guide to printing estimating: A book of practical, cost-reducing ideas for the professional printing estimator. 3rd ed. Encino, Calif: Editorial Enterprises, 1991.

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Pol, Marjon van der. Using a conditioned iterative generalised least squares estimator (CIGLS) to model a multilevel cost function and a discount function applied to repeated observations. Aberdeen: Health Economics Research Unit, University of Aberdeen, 1997.

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Mislick, Gregory K., and Daniel A. Nussbaum. Cost Estimation. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781118802342.

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White, Joseph. Understanding long-term medicare cost estimates. New York, N.Y: Century Foundation, 1999.

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Diamant, Leo. Construction cost estimates. 2nd ed. New York: Wiley, 1990.

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Stewart, Rodney D. Cost estimating. 2nd ed. New York: Wiley, 1991.

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Cost estimating. 2nd ed. New York: Wiley, 1990.

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Construction cost engineering handbook. New York: M. Dekker, 1988.

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Book chapters on the topic "Cost Estimator"

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Chen, Jiangning, Zhibo Dai, Juntao Duan, Qianli Hu, Ruilin Li, Heinrich Matzinger, Ionel Popescu, and Haoyan Zhai. "A Cost-Reducing Partial Labeling Estimator in Text Classification Problem." In Advances in Intelligent Systems and Computing, 494–511. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39442-4_37.

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Bhardwaj, Rahul, and Venkatesh Balasubramanian. "A Low-Cost Reaction Time Estimator-Based Hand and Foot Exercises for Stroke Rehabilitation." In Design Science and Innovation, 609–14. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9054-2_70.

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Wilson, John, Thècle Alix, Elise Gruhier, Nicolas Maranzana, Nicolas Perry, Gérard Magnin, Nicolas Parrod, Rémy Servonnat, and Julien Tuery. "Initial Proposal for a General Systems Engineering Methodology to Early Design Phase Cost/Value Estimation." In Lecture Notes in Mechanical Engineering, 393–99. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_62.

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AbstractWe propose that a systems engineering methodology may be applied in an effective interactive design environment for lifecycle cost estimation and value optimization in the context of a manufacturing enterprise. In order to optimize a product design for value, engineering and manufacturing businesses need to be able to estimate accurately product lifecycle costs during the early design phases of its development, because this is when the majority of these costs are determined. Systems engineering defines realizing value as meeting stakeholder requirements and emphasizes formalizing these in order to link coherently the individual estimated costs of a design to the needs it fulfils. Furthermore, formalized requirement and design parameters are suitable for modelling and simulation, and we envision a systems model implemented within existing knowledge-based engineering tools embedded in a design environment. The results of this model may support design decisions, as well as reinforce systems engineering analyses in evaluating processes for value chain simulations.

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Holm, Len, and John E. Schaufelberger. "Estimate summary." In Construction Cost Estimating, 234–47. First edition. | Abingdon, Oxon ; New York : Routledge/Taylor & Francis Group, 2021. | Substantial re-write from previous estimating text: Construction Cost Estimating, Process and Practices by Holm, Schaufelberger, Griffin, and Cole; Pearson, 2005.: Routledge, 2021. http://dx.doi.org/10.1201/9781003023494-24.

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Eisner, Howard. "Cost Estimation." In Systems Architecting, 61–66. Boca Raton, FL : CRC Press/Taylor & Francis Group, 2019.: CRC Press, 2019. http://dx.doi.org/10.1201/9780429327810-11.

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Manegold, Stefan. "Cost Estimation." In Encyclopedia of Database Systems, 647–53. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4614-8265-9_857.

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Manegold, Stefan. "Cost Estimation." In Encyclopedia of Database Systems, 506–11. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-39940-9_857.

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Kessler, Stephen B., and Elias Klein. "Cost Estimates." In Membrane Handbook, 212–15. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3548-5_15.

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Ray, Roderick J. "Cost Estimates." In Membrane Handbook, 355–90. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3548-5_25.

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Manegold, Stefan. "Cost Estimation." In Encyclopedia of Database Systems, 1–7. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4899-7993-3_857-2.

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Conference papers on the topic "Cost Estimator"

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Hu, H., and G. De Haan. "Low Cost Robust Blur Estimator." In 2006 International Conference on Image Processing. IEEE, 2006. http://dx.doi.org/10.1109/icip.2006.312411.

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Kessler, J. L. "Navistar: The wire harness cost estimator." In the second international conference. New York, New York, USA: ACM Press, 1989. http://dx.doi.org/10.1145/67312.67322.

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Farnaz, A. H. Z., H. S. Sajith, P. J. Binduhewa, M. P. B. Ekanayake, and B. G. L. T. Samaranayake. "Low cost torque estimator for DC servo motors." In 2015 IEEE 10th International Conference on Industrial and Information Systems (ICIIS). IEEE, 2015. http://dx.doi.org/10.1109/iciinfs.2015.7399008.

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Ahmad, Noraziah. "Specific Data Model of Smart Fuel Consumption Cost Estimator." In 2009 International Conference on Computer Technology and Development. IEEE, 2009. http://dx.doi.org/10.1109/icctd.2009.123.

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Yan, Bo, Haifen Yang, and Liang Zhou. "Multitaper spectral estimator based on a cost minimization approach." In Seventh International Conference on Digital Image Processing (ICDIP15), edited by Charles M. Falco and Xudong Jiang. SPIE, 2015. http://dx.doi.org/10.1117/12.2197855.

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Leary, Robert D., and Sean Brennan. "Region of Attraction for a Vehicle Pose Estimator Utilizing Monocular Vision and Lane Marker Maps." In ASME 2016 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/dscc2016-9701.

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Currently, there is a lack of low-cost, real-time solutions for accurate autonomous vehicle localization. The fusion of a precise a priori map and a forward-facing camera can provide an alternative low-cost method for achieving centimeter-level localization. This paper analyzes the position and orientation bounds, or region of attraction, with which a real-time vehicle pose estimator can localize using monocular vision and a lane marker map. A pose estimation algorithm minimizes the residual pixel-level error between the estimated and detected lane marker features via Gauss-Newton nonlinear least-squares. Simulations of typical road scenes were used as ground truth to ensure the pose estimator will converge to the true vehicle pose. A successful convergence was defined as a pose estimate that fell within 5 cm and 0.25 degrees of the true vehicle pose. The results show that the longitudinal vehicle state is weakly observable with the smallest region of attraction. Estimating the remaining five vehicle states gives repeatable convergence within the prescribed convergence bounds over a relatively large region of attraction, even for the simple lane detection methods used herein. A main contribution of this paper is to demonstrate a repeatable and verifiable method to assess and compare lane-based vehicle localization strategies.

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Uğur, Latif Onur, and Kadir Penbe. "Comparison of the Performance of “Unit Area Cost Method” (UACM) and “Unit Price Method” (UPM) Used in Estimating the Costs of the Reinforced Concrete Multi-Storey Housing Buildings." In 4th International Conference of Contemporary Affairs in Architecture and Urbanism – Full book proceedings of ICCAUA2020, 20-21 May 2021. Alanya Hamdullah Emin Paşa University, 2021. http://dx.doi.org/10.38027/iccaua2021tr0033n6.

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Unit Price Method (UPM) and Unit Area Cost Method (UACM) are widely used in the cost of reinforced concrete multi-storey housing buildings. In this study, it is aimed to determine the cost estimation method with high performance (its use will provide an advantage to the estimator over the other) by comparing the cost estimates in the modeling by making “Regression Analysis” (RA), with the data of such struction. In the literature review, studies of equivalent and different structures were evaluated. In modeling; Number of rooms, floor area, total area, number of floors, floor height, facade area, facade void area, Bathroom/wc areas, balcony areas, building height are parameters. UPM and UACM based costs which were created with the data of 2020 of 41 similar structures (38 for modelling, 3 for tests) were used as independent variables, and cost models were created with linear regression analysis. The results were randomly selected and compared with test groups that were not used in these models, and the error rates and performances of the methods were tested. According to the comparison, in the UACM analysis, there was a high R2 value in 6 data and a low error rate in 8 predictions; In the UPM analysis, it was determined that an equally high R2 value and a low error rate occured in 7 predictions. As a result, UACM reached a better performance in finding the estimated cost; It has been observed that using it in cost estimation gives better results. However, even if UACM performed better, the difference in error rates is very low, at 2.7%.

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Bellili, Faouzi, and Sofiene Affes. "A low-cost and robust maximum likelihood doppler spread estimator." In 2013 IEEE Global Communications Conference (GLOBECOM 2013). IEEE, 2013. http://dx.doi.org/10.1109/glocom.2013.6831753.

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Tanabe, Hiroki, Naoyuki Hara, and Keiji Konishi. "State Estimator for Floating Offshore Wind Turbines and Performance Evaluation." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18549.

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Abstract Floating offshore wind turbines (FOWTs) are considered as a promising technology for installing turbines in deeper sea sites. One of the difficulties is that the maintenance cost tends to be high because of the limited accessibility to the site. Therefore remote monitoring and estimation of various physical variables of a wind turbine in real-time is important for health assessment and fault diagnosis before a critical failure occurs. One promising way to do this is to have a wind turbine model in computer and estimate the various physical variables of the turbine in real-time by using the available noisy sensor measurements. In this paper, we consider a 5MW FOWT and design a Kalman filter to deal with the estimation problem of the turbine state variables and effective wind speed. A blade pitch controller that uses the estimated state feedback and wind feedforward is also designed. The proposed estimation and control scheme is evaluated using the turbine simulation code, FAST, and results show that the state variables are well estimated except for the blade flapwise moment.

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Raguraman, Preeth, and R. Mohan. "Low cost Received Signal Strength estimator for localization in wireless networks." In 2019 TEQIP III Sponsored International Conference on Microwave Integrated Circuits, Photonics and Wireless Networks (IMICPW). IEEE, 2019. http://dx.doi.org/10.1109/imicpw.2019.8933167.

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Reports on the topic "Cost Estimator"

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Skidmore, Paul R., and John J. Fittipaldi. WWII (World War II) Era Building Demolition and Renovation Cost Estimator (ESTER) 1.0 User's Manual. Fort Belvoir, VA: Defense Technical Information Center, July 1988. http://dx.doi.org/10.21236/ada197832.

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Becker, Dennis R., Debra Larson, Eini C. Lowell, and Robert B. Rummer. User guide for HCR Estimator 2.0: software to calculate cost and revenue thresholds for harvesting small-diameter ponderosa pine. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2008. http://dx.doi.org/10.2737/pnw-gtr-748.

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Cai, Yongxia, Christopher M. Wade, Justin S. Baker, Jason P. H. Jones, Gregory S. Latta, Sara B. Ohrel, Shaun A. Ragnauth, and Jared R. Creason. Implications of alternative land conversion cost specifications on projected afforestation potential in the United States. RTI Press, November 2018. http://dx.doi.org/10.3768/rtipress.2018.op.0057.1811.

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The Forestry and Agriculture Sector Optimization Model with Greenhouse Gases (FASOMGHG) has historically relied on regional average costs of land conversion to simulate land use change across cropland, pasture, rangeland, and forestry. This assumption limits the accuracy of the land conversion estimates by not recognizing spatial heterogeneity in land quality and conversion costs. Using data from Nielsen et al. (2014), we obtained the afforestation cost per county, then estimated nonparametric regional marginal cost functions for land converting land to forestry. These afforestation costs were then incorporated into FASOMGHG. Three different assumptions for land moving into the forest sector were run; constant average conversion cost, static rising marginal costs and dynamic rising marginal cost, in order to assess the implications of alternative land conversion cost assumptions on key outcomes, such as projected forest area and cropland use, carbon sequestration, and forest product output.

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DiGrande, Laura, Sue Pedrazzani, Elizabeth Kinyara, Melanie Hymes, Shawn Karns, Donna Rhodes, and Alanna Moshfegh. Field Interviewer– Administered Dietary Recalls in Participants’ Homes: A Feasibility Study Using the US Department of Agriculture’s Automated Multiple-Pass Method. RTI Press, May 2021. http://dx.doi.org/10.3768/rtipress.2021.mr.0045.2105.

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Objective: The purpose of this study was to assess the feasibility of administering the Automated Multiple-Pass Method (AMPM), a widely used tool for collecting 24-hour dietary recalls, in participants’ homes by field interviewers. Design: The design included computer-assisted personal interviews led by either a nutritionist (standard) or field interviewer. Portion estimators tested were a set of three-dimensional food models (standard), a two-dimensional food model booklet, or a tablet with digital images rendered via augmented reality. Setting: Residences in central North Carolina. Participants: English-speaking adults. Pregnant women and individuals who were fasting were excluded. Results: Among 133 interviews, most took place in living rooms (52%) or kitchens (22%). Mean interview time was 40 minutes (range 13–90), with no difference by interviewer type or portion estimator, although timing for nutritionist-led interviews declined significantly over the study period. Forty-five percent of participants referenced items from their homes to facilitate recall and portion estimation. Data entry and post-interview coding was evaluated and determined to be consistent with requirements for the National Health and Nutrition Examination Survey. Values for the number of food items consumed, food groups, energy intake (average of 3,011 kcal for men and 2,105 kcal for women), and key nutrients were determined to be plausible and within reasonably expected ranges regardless of interviewer type or portion estimator used. Conclusions: AMPM dietary recall interviews conducted in the home are feasible and may be preferable to clinical administration because of comfort and the opportunity for participants to access home items for recall. AMPMs administered by field interviewers using the food model booklet produced credible nutrition data that was comparable to AMPMs administered by nutritionists. Training field interviewers in dietary recall and conducting home interviews may be sensible choices for nutrition studies when response rates and cost are concerns.

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Silver, Aaron N. Software Cost Estimation Study. Fort Belvoir, VA: Defense Technical Information Center, August 1990. http://dx.doi.org/10.21236/ada226777.

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Melaina, M., and M. Penev. Hydrogen Station Cost Estimates: Comparing Hydrogen Station Cost Calculator Results with other Recent Estimates. Office of Scientific and Technical Information (OSTI), September 2013. http://dx.doi.org/10.2172/1260510.

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Herrera Dappe, Matías, Tomás Serebrisky, and Ancor Suárez-Alemán. On the Historical Relationship between Port (In)Efficiency and Transport Costs in the Developing World. Inter-American Development Bank, June 2021. http://dx.doi.org/10.18235/0003326.

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Do differences in port performance explain differences in maritime transport costs? How much would improvements in port performance reduce maritime transport costs in developing countries? To answer this question, we use a widely used transport cost model, but we provide a new measure of port efficiency, estimated through a non-parametric approach. Relying on data from the early 2000s, this paper shows that for a sample of 115 container ports in 39 developing countries, becoming as efficient as the country with the most efficient port sector would reduce average maritime transport costs by 5 percent. For the most inefficient country, the reduction in transport costs could reach 15 percent. These findings point out the potential gains that can be achieved from the combination of betterquality investment and more efficient service provision in the port sector. The estimates in this paper cannot be updated because the databases were discontinued and it therefore highlights the need to generate data to evaluate the effectiveness of public policies that are key to competitiveness.

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Glatzmaier, Greg. Developing a Cost Model and Methodology to Estimate Capital Costs for Thermal Energy Storage. Office of Scientific and Technical Information (OSTI), December 2011. http://dx.doi.org/10.2172/1031953.

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Candrilli, Sean D., and Samantha Kurosky. The Response to and Cost of Meningococcal Disease Outbreaks in University Campus Settings: A Case Study in Oregon, United States. RTI Press, October 2019. http://dx.doi.org/10.3768/rtipress.2019.rr.0034.1910.

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Invasive meningococcal disease (IMD) is a contagious bacterial infection that can occur sporadically in healthy individuals. Symptoms are typically similar to other common diseases, which can result in delayed diagnosis and treatment until patients are critically ill. In the United States, IMD outbreaks are rare and unpredictable. During an outbreak, rapidly marshalling the personnel and monetary resources to respond is paramount to controlling disease spread. If a community lacks necessary resources for a quick and efficient outbreak response, the resulting economic cost can be overwhelming. We developed a conceptual framework of activities implemented by universities, health departments, and community partners when responding to university-based IMD outbreaks. Next, cost data collected from public sources and interviews were applied to the conceptual framework to estimate the economic cost, both direct and indirect, of a university-based IMD outbreak. We used data from two recent university outbreaks in Oregon as case studies. Findings indicate a university-based IMD outbreak response relies on coordination between health care providers/insurers, university staff, media, government, and volunteers, along with many other community members. The estimated economic cost was $12.3 million, inclusive of the cost of vaccines ($7.35 million). Much of the total cost was attributable to wrongful death and indirect costs (e.g., productivity loss resulting from death). Understanding the breadth of activities and the economic cost of such a response may inform budgeting for future outbreak preparedness and development of alternative strategies to prevent and/or control IMD.

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Loh, H. P., Jennifer Lyons, and Charles W. White. Process Equipment Cost Estimation, Final Report. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/797810.

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