Wyniki wyszukiwania - BazTech

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Research on cost prediction for construction project based on Boruta-SO-BP model

Cui Hao, Xia Junjie

Archives of Civil Engineering

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2023

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Vol. 69, nr 4

413--429

EN

Cost prediction for construction projects provides important information for project feasibility studies and design scheme selection. To improve the accuracy of early-stage cost estimation for construction projects, an improved neural network prediction model was proposed based on BP (back propagation) neural network and Snake Optimizer algorithm (SO). SO algorithm is adopted to optimize the initial weights and thresholds of the BP neural network. Cost data for 50 construction projects undertaken by Shandong Tianqi Real Estate Group in China was collected, and the data samples were clustered into three categories using cluster analysis. 18 engineering feature indicators were determined through a literature review and 10 feature indicators were selected using Boruta algorithm for the input set. Compared to BP neural network and PSO-BP neural network, the results show that the improved SO-BP model has higher prediction accuracy, stability, better generalization ability and applicability. Therefore, based on reasonable feature indicators, the method proposed in this paper has certain guiding significance for predicting engineering costs.

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Cost optimization of an investment project based on contract strategies

Marinina Oksana, Nevskaya Marina, Ivanova Svetlana

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2020

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z. 145

309--319

EN

Purpose: The article presents the actual problem of determining cost of construction project implementation. Within the conducted research, an analysis of existing approaches to managing project costs in the face of uncertainty was carried out, including the justification of the possibility of using the contract system for the purpose of optimizing the project, as well as identification of possibilities of cost engineering. Design/methodology/approach: A Case-study method, based on an assessment of the performance indicators of an investment project for the construction of a city boiler house and the project cost analysis using the Earned Value Technique, was used to prove the hypothesis about the effectiveness of using cost engineering. Findings: The results of evaluating the effectiveness of project implementation was substantiated, and the feasibility of applying the EPC contract for the cost optimization was proven. The projects implemented with the EPC contracts have a high potential. EPC/M contracts are widely used in other countries, but in Russia, this type of contract is just beginning to be used. Originality/value: In the result of the analysis, it was revealed that the main factors affecting the cost of the boiler house implementation construction project were the imperfection of the pricing system, the presence of unrecorded work and costs, the inadequacy of the rationing system; the violation of technology and timing of implementation.

3

Projects management in organization on the selected example

Kania A., Spilka M., Griner S.

Journal of Achievements in Materials and Manufacturing Engineering

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2013

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Vol. 56, nr 1

38--47

EN

Purpose: In this paper stages of project management taking into consideration many useful tools and methods were presented. The quality management in the project, the risk estimation, costs of the project realization and many others were discussed. The analysis of project management of an element using in an automotive industry was carried out. Design/methodology/approach: In this article classification of the projects was presented. The stages of project management and relations among them were discussed. The special attention was given for selected elements of project management in a selected enterprise. Findings: The team formation, tasks of a manager and a leader of the analyzed project were shown. The methods of quality control in the project and process of the risk management were presented. Moreover methods of time management and costs planning of the project were discussed. Research limitations/implications: Many undertakings cannot be realized without earlier plans. It is very important in case of big projects. The correct planning and a proper project management bring many advantages for organizations. Practical implications: Very often project management is separated only in a planning stage what doesn’t bring an expected effect. To prevent this it is necessary to creation of tools containing necessary conceptual, planning, implementation and control actions. Originality/value: In this paper indicated that the analyzed project was proper managed. Following stages of the project were carried out carefully. In this project many modern methods of project management were used. These methods eliminate threats which can lead to errors in the project realization.

4

Chosen aspects of project management

Kania A., Spilka M., Griner S.

Journal of Achievements in Materials and Manufacturing Engineering

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2013

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Vol. 61, nr 2

388--394

EN

Purpose: In this article a problem of project management (PM) was presented. There was special attention given to objectives, scope of the project and project costs. Moreover, an analysis of project management in chosen organisation was made. Design/methodology/approach: The methodology of project management was shown. A problematic areas of project management (project quality, project risk, time and costs in a project) were discussed. Chosen stages of PM were practically checked in a selected organisation. Findings: In this paper an example of projects classification was presented. The features of project plan were proposed. The necessity of carrying out audits was presented. In the article a threats analysis and a time control were shown. Research limitations/implications: The fundamental purpose of a project management is to achieve success with a proposed budget and schedule. In this case quality, cost and time are the main parameters of the project, significant for the project realisation and evaluation of project results. Practical implications: In the paper practical directions of project planning, realisation and termination were presented. This makes possible minimization of project failures and a positive effect in a project realisation. Originality/value: The analysed PM process in the organisation allowed to know modern project management tools and techniques from a practical side. The realised project was finished with success because a working team had knowledge and experience in the project management.

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Struktura i uwarunkowania współczesnego procesu inwestycyjno-budowlanego

Biliński T.

Przegląd Budowlany

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2010

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R. 81, nr 11

46-52

PL

Od programowania i planowania inwestycji budowlanych, a następnie organizacji procesu inwestycyjno-budowlanego oraz zarządzania nim, w znacznym stopniu zależą koszty i jakość realizowanej inwestycji, dlatego działalność inwestycyjno-budowlana wymaga kompleksowego ujęcia, szczegółowego planowania i konsekwentnej realizacji.

EN

The programming and planning of construction development projects, followed by the organization and management of the construction development process, have a significant influence on the costs and quality of the development, and for this reason development activity requires a comprehensive approach, detailed planning and consistent execution.

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Kontrola kosztów budowy metodą EVM jako metodą prognozowania ryzyka przekroczenia planowanego budżetu

Połoński M.

Przegląd Budowlany

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2010

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R. 81, nr 10

46-52

PL

Podstawowym dokumentem opracowywanym na etapie przygotowania obiektu budowlanego do realizacji jest harmonogram budowy. Zazwyczaj postrzegany jest on jako plan przyszłych działań, jednak nie należy zapominać, że w zależności od założeń jego rola może być znacznie szersza.

EN

A basic document drawn up at the preparatory stage of a construction project is the construction schedule. This is usually perceived as a plan of future actions, but it must not be forgotten that, depending on the objectives, it may play a significantly more extensive role.