Rifat Sönmez

E-mail

rsonmez@metu.edu.tr

Department

Department of Civil Engineering

ORCID

0000-0001-6163-3264

Scopus Author ID

6602554238

Web of Science Researcher ID

AAQ-4963-2020

ε-constraint procedures for Pareto front optimization of large size discrete time/cost trade-off problem Aminbakhsh, Saman; Sönmez, Rifat; Atan, Tankut (2024-01-01) The discrete time/cost trade-off problem (DTCTP) optimizes the project duration and/or cost while considering the trade-off between activity durations and their direct costs. The complete and non-dominated time-cost profil...
A transformative solution for construction safety: Blockchain-based system for accident information management Ahmadisheykhsarmast, Salar; Aminbakhsh, Saman; Sönmez, Rifat; Uysal, Furkan (2023-10-01) Effective management of accident information is a crucial component of safety management within the construction industry, as it reflects the safety performance of the company and allows them to identify the root causes of...
A Memetic Algorithm for the Solution of the Resource Leveling Problem Iranagh, Mehdi; Sönmez, Rifat; Uysal, Furkan; Atan, Sabri Tankut; Bettemir, Önder Halis (2023-10-01) In this paper, we present a novel memetic algorithm (MA) for the solution of the resource leveling problem (RLP). The evolutionary framework of the MA is based on integration of a genetic algorithm and simulated annealing ...
Decentralized tendering of construction projects using blockchain-based smart contracts and storage systems Ahmadisheykhsarmast, Salar; Senji, Sina Golmohammadi; Sönmez, Rifat (2023-07-01) Existing tendering methods for construction projects are centralized and rely on a third party's involvement during the process, hence, the methods raise critical concerns regarding data security, transparency, and traceab...
Bootstrap Aggregated Case-Based Reasoning Method for Conceptual Cost Estimation Uysal, Furkan; Sönmez, Rifat (2023-02-01)
BIM integrated smart contract for construction project progress payment administration Sönmez, Rifat; Ahmadisheykhsarmast, Salar; Güngör, Aslı Akçamete (2022-07-01) © 2022 Elsevier B.V.In recent years few blockchain based progress payment methods have been proposed to improve the traditional payment process for construction projects. The blockchain based methods require the off-chain ...
Blockchain in project management: a systematic review of use cases and a design decision framework Sönmez, Rifat; Ahmadisheykhsarmast, Salar (2021-11-01) Blockchain presents a novel technology for improving existing paradigms in a wide span of domains, including project management. In this paper, we first review the state of the art blockchain use cases in project managemen...
Discussion of "Artificial Intelligence and Parametric Construction Cost Estimate Modeling: State-of-the-Art Review" by Haytham H. Elmousalami Sönmez, Rifat (2021-06-01)
A graphical processing unit-based parallel hybrid genetic algorithm for resource-constrained multi-project scheduling problem Uysal, Furkan; Sönmez, Rifat; İŞLEYEN, SELÇUK KÜRŞAT (2021-03-01) In this article, we present a parallel graphical processing unit (GPU)-based genetic algorithm (GA) for solving the resource-constrained multi-project scheduling problem (RCMPSP). We assumed that activity pre-emption is no...
A smart contract system for security of payment of construction contracts Ahmadisheykhsarmast, Salar; Sönmez, Rifat (Elsevier BV, 2020-12-01) Timely payment of project participants is crucial for successful completion of construction projects, however the construction industry worldwide suffers from poor payment practices. The existing research studied the reaso...

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