Graduate School of Applied Mathematics, Article

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STOCK PRICE MODELLING OF INDONESIAN BANKS: FORECASTING MODELLING Simarmata, Justin Eduardo; Weber, Gerhard Wilhelm; Baldemor, Milagros R.; Chrisinta, Debora (2025-01-01) Stock of banks in Indonesia are targeted for investors to invest in order to benefit from the distribution of dividends and capital gains. Proper observation is needed in selecting stocks as an investment place to avoid th...
A GAME THEORY PERSPECTIVE ON STRATEGIC PROFIT DISTRIBUTION IN COMPLEX IT PROJECTS Özcan, İsmail; Śledziński, Jacek Dominik; ALPARSLAN GÖK, Sırma Zeynep; Meca, Ana; Weber, Gerhard Wilhelm; Butlewski, Marcin; Kocadag, Esmanur (2025-01-01) In this article, we examine the process of evaluating an Information Technology (IT) project undertaken by three capital-linked companies. Herewith we address one of the main branches and drivers of our modern economies. T...
GAUSSIAN TYPE-2 FUZZY COOPERATIVE GAME BASED ON REDUCTION METHOD: AN APPLICATION TO MULTI-DRUG RESISTANCE PROBLEM Maiti, Sumit Kumar; Roy, Sankar Kumar; Weber, Gerhard Wilhelm (2025-01-01) Many developments of fuzzy sets have been suggested to accomplish uncertain information in real-world problems. But, in the greatest cases, fuzzy sets in two- dimensions or type-1 fuzzy sets are measured. Incomplete inform...
Families of sequences with good family complexity and cross-correlation measure Doğan, Kenan; ŞAHİN, MURAT; Yayla, Oğuz (2025-01-01) In this paper, we examine the pseudorandomness of a family of sequences with respect to two key measures: family complexity (f-complexity) and cross-correlation measure of order ℓ. Our study encompasses sequences over both...
SUPG-based stabilized finite element computations of convection-dominated 3D elliptic PDEs using shock-capturing Cengizci, Süleyman; Uğur, Ömür; Natesan, Srinivasan (2024-12-01) This study is interested in stabilized finite element computations of advection-dominated convection–diffusion-type partial differential equations. The governing equations are assumed to be defined on the 3D unit cube and ...
Developing a Predictive Model for Engineering Graduates Placement Using a Data-Driven Machine Learning Approach Molla, Md Jakir Hossain; Obaidullah, Sk Md; Sen, Soumya; Weber, Gerhard Wilhelm; Jana, Chiranjibe (2024-12-01) This study presents a novel predictive model for engineering graduates' placement outcomes using Machine Learning (ML) techniques. The model is built on a comprehensive dataset that includes students' performance in variou...
Analyzing how inflation affects non-instantly decaying goods with demand linked to ads and selling price in a dual-warehouse setup Limi, Anthony; Rangarajan, K.; Jana, Chiranjibe; Ghith, Ehab; Lamoudan, Tarik; Weber, Gerhard Wilhelm; Abdelhamid, Abdelaziz A. (2024-11-01) This study explores inventory management strategies specifically designed for non-instantaneous deteriorating goods under inflationary conditions, utilizing a dual-warehouse system—one owned and the other rented with limit...
The Assessment of Early Warning for Insurance Company Using Machine Learning Methods Koçer, Günay Burak; Kestel, Sevtap Ayşe (2024-11-01)
SOLVING MATRIX GAME USING ROUGH INTERVAL PAYOFFS Ghosh, Piyush; Bhaumik, Ankan; Weber, Gerhard Wilhelm; Roy, Sankar Kumar (2024-10-01) In this paper, we conduct an analysis of a matrix game using rough interval payoffs, which we refer to as the rough interval matrix game (RIMG). We employ three methods to address the problem at hand: linear programming, g...
A strategy based on statistical modelling and multi-objective optimization to design a dishwasher cleaning cycle Anapa, Korkut; Yücel, Hamdullah (2024-09-01) This study proposes a novel approach based on statistical learning and multi-objective optimization to reduce the need for experiments during the design phase of new cleaning cycles for household dishwashers. We first buil...
A different base approach for better efficiency on range proofs Günsay, Esra; Betin Onur, Cansu; Cenk, Murat (2024-09-01) Zero-knowledge range proofs (ZKRPs) are commonly used to prove the validation of a secret integer lies in an interval to some other party in a secret way. In many ZKRPs, the secret is represented in binary and then committ...
A computational study for simulating MHD duct flows at high Hartmann numbers using a stabilized finite element formulation with shock-capturing Cengizci, Süleyman; Uğur, Ömür (2024-09-01) The concern of this manuscript is stabilized finite element simulations of two-dimensional incompressible and viscous magnetohydrodynamic (MHD) duct flows governed by a coupled system of partial differential equations of t...
On some permutation trinomials in characteristic three Özkaya, Buket; Gülmez Temür, Burcu (2024-07-01)
New distance bounds for quasi-cyclic codes Özkaya, Buket; Özbudak, Ferruh (2024-07-01)
Ruin probability for heavy-tailed and dependent losses under reinsurance strategies Yıldırım Külekci, Bükre; Korn, Ralf; Kestel, Sevtap Ayşe (2024-07-01) The frequency and severity of extreme events have increased in recent years in many areas. In the context of risk management for insurance companies, reinsurance provides a safe solution as it offers coverage for large cla...
On a class of permutation trinomials over finite fields Özkaya, Buket; Gülmez Temür, Burcu (2024-07-01)
Disruption, panic buying, and pricing: A comprehensive game-theoretic exploration Soltanzadeh, Shima; Rafiee, Majid; Weber, Gerhard Wilhelm (2024-05-01) No one can cast a shadow on the disruption and customer buying behavior change, especially panic buying, as a result of it. Thus, designing scenarios to examine the influence of this situation on pricing decisions plays a ...
Metaheuristic-driven extended exergy accounting for sustainable closed-loop food supply chain management Shokouhifar, Mohammad; Naderi, Reihaneh; Goli, Alireza; Gultom, Parapat; Shafiei Nikabadi, Mohsen; Weber, Gerhard Wilhelm (2024-05-01) In this research, an exergetic mathematical model is proposed for closed-loop food supply chain network design considering economic, environmental, and social aspects. The studded closed-loop food supply chain consists of ...
A novel Nash-based low-carbon implementation in agricultural supply chain management Hamidoğlu, Ali; Weber, Gerhard Wilhelm (2024-04-10) The transition to low-carbon agriculture is seen as essential for accelerating the implementation of ecologically friendly and climate-smart agricultural supply chain management strategies. Success in these efforts depends...
Location–allocation problem for green efficient two-stage vehicle-based logistics system: A type-2 neutrosophic multi-objective modeling approach Das, Soumen Kumar; Yu, Vincent F.; Roy, Sankar Kumar; Weber, Gerhard Wilhelm (2024-03-15) In recent decades, global climate change has become one of the most critical environmental issues, leading to increased environmental and social concerns about the sustainability of logistics networks. This study proposes ...

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