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Reassessment and monitoring of loan applications with machine learning
(Taylor & Francis, 2018-11-26)
Credit scoring and monitoring are the two important dimensions of the decision-making process for the loan institutions. In the first part of this study, we investigate the role of machine learning for applicant reassessment ...
The attractive traveling salesman problem
(Elsevier, 2010-05-16)
In the Attractive Traveling Salesman Problem the vertex set is partitioned into facility vertices and customer vertices. A maximum profit tour must be constructed on a subset of the facility vertices. Profit is computed ...
Applying migrating birds optimization to credit card fraud detection
(Springer Science+Business Media, 2013)
We discuss how the Migrating Birds Optimization algorithm (MBO) is applied to statistical credit card fraud detection problem. MBO is a recently proposed metaheuristic algorithm which is inspired by the V flight formation ...
Tight compact models and comparative analysis for the prize collecting Steiner tree problem
(Elsevier, 2013-03)
We investigate a generalized version of the prize collecting Steiner tree problem (PCSTP), where each node of a given weighted graph is associated with a prize as well as a penalty cost. The problem is to find a tree ...
Enhanced energetic reasoning-based lower bounds for the resource constrained project scheduling problem
(Elsevier, 2012-05)
We present new and effective lower bounds for the resource constrained project scheduling problem. This problem is widely known to be notoriously difficult to solve due to the lack of lower bounds that are both tight and ...
Relaxations and exact solution of the variable sized bin packing problem
(Springer Science+Business Media, 2011-03)
We address a generalization of the classical one-dimensional bin packing problem with unequal bin sizes and costs. We investigate lower bounds for this problem as well as exact algorithms. The main contribution of this ...
Exact method for robotic cell problem
(Elsevier, 2010-08-01)
This study investigates an exact method for the Robotic Cell Problem. We present an exact branch and bound algorithm which is the first exact procedure specifically designed for this strongly NP-hard problem. In this ...
Integrated airline schedule design and fleet assignment: polyhedral analysis and benders’ decomposition approach
(Informs, 2010-01)
The main airline operations consist of schedule planning, fleet assignment, aircraft routing, and crew scheduling. To improve profitability, we present in this paper an integrated fleet assignment model with schedule ...
A novel and successful credit card fraud detection system Implemented in a Turkish Bank
(IEEE, 2013)
We developed a credit card fraud detection solution for a major bank in Turkey. The study was completed in about three years and the developed system has been in use since February 2013. It had a great impact in the rule ...
Integrated experimental design and nonlinear optimization to handle computationally expensive models under resource constraints
(Springer Science+Business Media, 2013-09)
In many real-world applications of optimization, the underlying descriptive system model is defined by computationally expensive functions: simulation modules, numerical models and other “black box” model components are ...
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